---
_id: '14687'
abstract:
- lang: eng
  text: The short history of research on Li-O2 batteries has seen a remarkable number
    of mechanistic U-turns over the years. From the initial use of carbonate electrolytes,
    that were then found to be entirely unsuitable, to the belief that (su)peroxide
    was solely responsible for degradation, before the more reactive singlet oxygen
    was found to form, to the hypothesis that capacity depends on a competing surface/solution
    mechanism before a practically exclusive solution mechanism was identified. Herein,
    we argue for an ever-fresh look at the reported data without bias towards supposedly
    established explanations. We explain how the latest findings on rate and capacity
    limits, as well as the origin of side reactions, are connected via the disproportionation
    (DISP) step in the (dis)charge mechanism. Therefrom, directions emerge for the
    design of electrolytes and mediators on how to suppress side reactions and to
    enable high rate and high reversible capacity.
article_number: e202316476
article_processing_charge: Yes (via OA deal)
article_type: review
author:
- first_name: Rajesh B
  full_name: Jethwa, Rajesh B
  id: 4cc538d5-803f-11ed-ab7e-8139573aad8f
  last_name: Jethwa
  orcid: 0000-0002-0404-4356
- first_name: Soumyadip
  full_name: Mondal, Soumyadip
  id: d25d21ef-dc8d-11ea-abe3-ec4576307f48
  last_name: Mondal
- first_name: Bhargavi
  full_name: Pant, Bhargavi
  id: 50c64d4d-eb97-11eb-a6c2-d33e5e14f112
  last_name: Pant
- first_name: Stefan Alexander
  full_name: Freunberger, Stefan Alexander
  id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
  last_name: Freunberger
  orcid: 0000-0003-2902-5319
citation:
  ama: Jethwa RB, Mondal S, Pant B, Freunberger SA. To DISP or not? The far‐reaching
    reaction mechanisms underpinning Lithium‐air batteries. <i>Angewandte Chemie International
    Edition</i>. 2023. doi:<a href="https://doi.org/10.1002/anie.202316476">10.1002/anie.202316476</a>
  apa: Jethwa, R. B., Mondal, S., Pant, B., &#38; Freunberger, S. A. (2023). To DISP
    or not? The far‐reaching reaction mechanisms underpinning Lithium‐air batteries.
    <i>Angewandte Chemie International Edition</i>. Wiley. <a href="https://doi.org/10.1002/anie.202316476">https://doi.org/10.1002/anie.202316476</a>
  chicago: Jethwa, Rajesh B, Soumyadip Mondal, Bhargavi Pant, and Stefan Alexander
    Freunberger. “To DISP or Not? The Far‐reaching Reaction Mechanisms Underpinning
    Lithium‐air Batteries.” <i>Angewandte Chemie International Edition</i>. Wiley,
    2023. <a href="https://doi.org/10.1002/anie.202316476">https://doi.org/10.1002/anie.202316476</a>.
  ieee: R. B. Jethwa, S. Mondal, B. Pant, and S. A. Freunberger, “To DISP or not?
    The far‐reaching reaction mechanisms underpinning Lithium‐air batteries,” <i>Angewandte
    Chemie International Edition</i>. Wiley, 2023.
  ista: Jethwa RB, Mondal S, Pant B, Freunberger SA. 2023. To DISP or not? The far‐reaching
    reaction mechanisms underpinning Lithium‐air batteries. Angewandte Chemie International
    Edition., e202316476.
  mla: Jethwa, Rajesh B., et al. “To DISP or Not? The Far‐reaching Reaction Mechanisms
    Underpinning Lithium‐air Batteries.” <i>Angewandte Chemie International Edition</i>,
    e202316476, Wiley, 2023, doi:<a href="https://doi.org/10.1002/anie.202316476">10.1002/anie.202316476</a>.
  short: R.B. Jethwa, S. Mondal, B. Pant, S.A. Freunberger, Angewandte Chemie International
    Edition (2023).
date_created: 2023-12-15T16:10:13Z
date_published: 2023-12-14T00:00:00Z
date_updated: 2024-02-15T14:43:05Z
day: '14'
department:
- _id: StFr
- _id: GradSch
doi: 10.1002/anie.202316476
keyword:
- General Chemistry
- Catalysis
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: ' https://doi.org/10.1002/anie.202316476'
month: '12'
oa: 1
oa_version: Published Version
publication: Angewandte Chemie International Edition
publication_identifier:
  eissn:
  - 1521-3773
  issn:
  - 1433-7851
publication_status: epub_ahead
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: To DISP or not? The far‐reaching reaction mechanisms underpinning Lithium‐air
  batteries
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
_id: '14733'
abstract:
- lang: eng
  text: Redox flow batteries (RFBs) rely on the development of cheap, highly soluble,
    and high-energy-density electrolytes. Several candidate quinones have already
    been investigated in the literature as two-electron anolytes or catholytes, benefiting
    from fast kinetics, high tunability, and low cost. Here, an investigation of nitrogen-rich
    fused heteroaromatic quinones was carried out to explore avenues for electrolyte
    development. These quinones were synthesized and screened by using electrochemical
    techniques. The most promising candidate, 4,8-dioxo-4,8-dihydrobenzo[1,2-d:4,5-d′]bis([1,2,3]triazole)-1,5-diide
    (−0.68 V(SHE)), was tested in both an asymmetric and symmetric full-cell setup
    resulting in capacity fade rates of 0.35% per cycle and 0.0124% per cycle, respectively.
    In situ ultraviolet-visible spectroscopy (UV–Vis), nuclear magnetic resonance
    (NMR), and electron paramagnetic resonance (EPR) spectroscopies were used to investigate
    the electrochemical stability of the charged species during operation. UV–Vis
    spectroscopy, supported by density functional theory (DFT) modeling, reaffirmed
    that the two-step charging mechanism observed during battery operation consisted
    of two, single-electron transfers. The radical concentration during battery operation
    and the degree of delocalization of the unpaired electron were quantified with
    NMR and EPR spectroscopy.
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Rajesh B
  full_name: Jethwa, Rajesh B
  id: 4cc538d5-803f-11ed-ab7e-8139573aad8f
  last_name: Jethwa
  orcid: 0000-0002-0404-4356
- first_name: Dominic
  full_name: Hey, Dominic
  last_name: Hey
- first_name: Rachel N.
  full_name: Kerber, Rachel N.
  last_name: Kerber
- first_name: Andrew D.
  full_name: Bond, Andrew D.
  last_name: Bond
- first_name: Dominic S.
  full_name: Wright, Dominic S.
  last_name: Wright
- first_name: Clare P.
  full_name: Grey, Clare P.
  last_name: Grey
citation:
  ama: Jethwa RB, Hey D, Kerber RN, Bond AD, Wright DS, Grey CP. Exploring the landscape
    of heterocyclic quinones for redox flow batteries. <i>ACS Applied Energy Materials</i>.
    2023. doi:<a href="https://doi.org/10.1021/acsaem.3c02223">10.1021/acsaem.3c02223</a>
  apa: Jethwa, R. B., Hey, D., Kerber, R. N., Bond, A. D., Wright, D. S., &#38; Grey,
    C. P. (2023). Exploring the landscape of heterocyclic quinones for redox flow
    batteries. <i>ACS Applied Energy Materials</i>. American Chemical Society. <a
    href="https://doi.org/10.1021/acsaem.3c02223">https://doi.org/10.1021/acsaem.3c02223</a>
  chicago: Jethwa, Rajesh B, Dominic Hey, Rachel N. Kerber, Andrew D. Bond, Dominic
    S. Wright, and Clare P. Grey. “Exploring the Landscape of Heterocyclic Quinones
    for Redox Flow Batteries.” <i>ACS Applied Energy Materials</i>. American Chemical
    Society, 2023. <a href="https://doi.org/10.1021/acsaem.3c02223">https://doi.org/10.1021/acsaem.3c02223</a>.
  ieee: R. B. Jethwa, D. Hey, R. N. Kerber, A. D. Bond, D. S. Wright, and C. P. Grey,
    “Exploring the landscape of heterocyclic quinones for redox flow batteries,” <i>ACS
    Applied Energy Materials</i>. American Chemical Society, 2023.
  ista: Jethwa RB, Hey D, Kerber RN, Bond AD, Wright DS, Grey CP. 2023. Exploring
    the landscape of heterocyclic quinones for redox flow batteries. ACS Applied Energy
    Materials.
  mla: Jethwa, Rajesh B., et al. “Exploring the Landscape of Heterocyclic Quinones
    for Redox Flow Batteries.” <i>ACS Applied Energy Materials</i>, American Chemical
    Society, 2023, doi:<a href="https://doi.org/10.1021/acsaem.3c02223">10.1021/acsaem.3c02223</a>.
  short: R.B. Jethwa, D. Hey, R.N. Kerber, A.D. Bond, D.S. Wright, C.P. Grey, ACS
    Applied Energy Materials (2023).
date_created: 2024-01-05T09:20:48Z
date_published: 2023-12-28T00:00:00Z
date_updated: 2024-01-08T09:03:01Z
day: '28'
ddc:
- '540'
department:
- _id: StFr
doi: 10.1021/acsaem.3c02223
ec_funded: 1
has_accepted_license: '1'
keyword:
- Electrical and Electronic Engineering
- Materials Chemistry
- Electrochemistry
- Energy Engineering and Power Technology
- Chemical Engineering (miscellaneous)
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1021/acsaem.3c02223
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
  call_identifier: H2020
  grant_number: '101034413'
  name: 'IST-BRIDGE: International postdoctoral program'
publication: ACS Applied Energy Materials
publication_identifier:
  eissn:
  - 2574-0962
publication_status: epub_ahead
publisher: American Chemical Society
quality_controlled: '1'
status: public
title: Exploring the landscape of heterocyclic quinones for redox flow batteries
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
_id: '12737'
abstract:
- lang: eng
  text: The substitution of heavier, more metallic atoms into classical organic ligand
    frameworks provides an important strategy for tuning ligand properties, such as
    ligand bite and donor character, and is the basis for the emerging area of main-group
    supramolecular chemistry. In this paper, we explore two new ligands [E(2-Me-8-qy)3]
    [E = Sb (1), Bi (2); qy = quinolyl], allowing a fundamental comparison of their
    coordination behavior with classical tris(2-pyridyl) ligands of the type [E′(2-py)3]
    (E = a range of bridgehead atoms and groups, py = pyridyl). A range of new coordination
    modes to Cu+, Ag+, and Au+ is seen for 1 and 2, in the absence of steric constraints
    at the bridgehead and with their more remote N-donor atoms. A particular feature
    is the adaptive nature of these new ligands, with the ability to adjust coordination
    mode in response to the hard–soft character of coordinated metal ions, influenced
    also by the character of the bridgehead atom (Sb or Bi). These features can be
    seen in a comparison between [Cu2{Sb(2-Me-8-qy)3}2](PF6)2 (1·CuPF6) and [Cu{Bi(2-Me-8-qy)3}](PF6)
    (2·CuPF6), the first containing a dimeric cation in which 1 adopts an unprecedented
    intramolecular N,N,Sb-coordination mode while in the second, 2 adopts an unusual
    N,N,(π-)C coordination mode. In contrast, the previously reported analogous ligands
    [E(6-Me-2-py)3] (E = Sb, Bi; 2-py = 2-pyridyl) show a tris-chelating mode in their
    complexes with CuPF6, which is typical for the extensive tris(2-pyridyl) family
    with a range of metals. The greater polarity of the Bi–C bond in 2 results in
    ligand transfer reactions with Au(I). Although this reactivity is not in itself
    unusual, the characterization of several products by single-crystal X-ray diffraction
    provides snapshots of the ligand transfer reaction involved, with one of the products
    (the bimetallic complex [(BiCl){ClAu2(2-Me-8-qy)3}] (8)) containing a Au2Bi core
    in which the shortest Au → Bi donor–acceptor bond to date is observed.
acknowledgement: The authors thank the Walters-Kundert Studentship of Selwyn College
  (scholarship for J.E.W.), the Leverhulme Trust (R.G.-R. and D.S.W., grant RPG-2017-146),
  the Australian Research Council (A.L.C., DE200100450), the Spanish Ministry of Science
  and Innovation (MCI) and the Spanish Ministry of Science, Innovation and Universities
  (MCIU) (R.G.-R., PID2021-124691NB-I00, funded by MCIN/AEI/10.13039/501100011033/FEDER,
  UE and PGC2018-096880-A-I00, MCIU/AEI/FEDER), The University of Valladolid and Santander
  Bank (Fellowship for A.G.-R.), and the U.K. EPSRC and The Royal Dutch Shell plc.
  (I-Case award for R.B.J., EP/R511870/1) for financial support. Calculations were
  carried out on an in-house Odyssey HPC cluster (Cambridge), and the authors are
  grateful for the calculation time used.
article_processing_charge: No
article_type: original
author:
- first_name: Álvaro
  full_name: García-Romero, Álvaro
  last_name: García-Romero
- first_name: Jessica E.
  full_name: Waters, Jessica E.
  last_name: Waters
- first_name: Rajesh B
  full_name: Jethwa, Rajesh B
  id: 4cc538d5-803f-11ed-ab7e-8139573aad8f
  last_name: Jethwa
  orcid: 0000-0002-0404-4356
- first_name: Andrew D.
  full_name: Bond, Andrew D.
  last_name: Bond
- first_name: Annie L.
  full_name: Colebatch, Annie L.
  last_name: Colebatch
- first_name: Raúl
  full_name: García-Rodríguez, Raúl
  last_name: García-Rodríguez
- first_name: Dominic S.
  full_name: Wright, Dominic S.
  last_name: Wright
citation:
  ama: García-Romero Á, Waters JE, Jethwa RB, et al. Highly adaptive nature of group
    15 tris(quinolyl) ligands─studies with coinage metals. <i>Inorganic Chemistry</i>.
    2023;62(11):4625-4636. doi:<a href="https://doi.org/10.1021/acs.inorgchem.3c00057">10.1021/acs.inorgchem.3c00057</a>
  apa: García-Romero, Á., Waters, J. E., Jethwa, R. B., Bond, A. D., Colebatch, A.
    L., García-Rodríguez, R., &#38; Wright, D. S. (2023). Highly adaptive nature of
    group 15 tris(quinolyl) ligands─studies with coinage metals. <i>Inorganic Chemistry</i>.
    American Chemical Society. <a href="https://doi.org/10.1021/acs.inorgchem.3c00057">https://doi.org/10.1021/acs.inorgchem.3c00057</a>
  chicago: García-Romero, Álvaro, Jessica E. Waters, Rajesh B Jethwa, Andrew D. Bond,
    Annie L. Colebatch, Raúl García-Rodríguez, and Dominic S. Wright. “Highly Adaptive
    Nature of Group 15 Tris(Quinolyl) Ligands─studies with Coinage Metals.” <i>Inorganic
    Chemistry</i>. American Chemical Society, 2023. <a href="https://doi.org/10.1021/acs.inorgchem.3c00057">https://doi.org/10.1021/acs.inorgchem.3c00057</a>.
  ieee: Á. García-Romero <i>et al.</i>, “Highly adaptive nature of group 15 tris(quinolyl)
    ligands─studies with coinage metals,” <i>Inorganic Chemistry</i>, vol. 62, no.
    11. American Chemical Society, pp. 4625–4636, 2023.
  ista: García-Romero Á, Waters JE, Jethwa RB, Bond AD, Colebatch AL, García-Rodríguez
    R, Wright DS. 2023. Highly adaptive nature of group 15 tris(quinolyl) ligands─studies
    with coinage metals. Inorganic Chemistry. 62(11), 4625–4636.
  mla: García-Romero, Álvaro, et al. “Highly Adaptive Nature of Group 15 Tris(Quinolyl)
    Ligands─studies with Coinage Metals.” <i>Inorganic Chemistry</i>, vol. 62, no.
    11, American Chemical Society, 2023, pp. 4625–36, doi:<a href="https://doi.org/10.1021/acs.inorgchem.3c00057">10.1021/acs.inorgchem.3c00057</a>.
  short: Á. García-Romero, J.E. Waters, R.B. Jethwa, A.D. Bond, A.L. Colebatch, R.
    García-Rodríguez, D.S. Wright, Inorganic Chemistry 62 (2023) 4625–4636.
date_created: 2023-03-19T23:00:59Z
date_published: 2023-03-08T00:00:00Z
date_updated: 2023-08-01T13:42:59Z
day: '08'
department:
- _id: StFr
doi: 10.1021/acs.inorgchem.3c00057
external_id:
  isi:
  - '000956110300001'
  pmid:
  - '36883367'
intvolume: '        62'
isi: 1
issue: '11'
language:
- iso: eng
month: '03'
oa_version: None
page: 4625-4636
pmid: 1
publication: Inorganic Chemistry
publication_identifier:
  eissn:
  - 1520-510X
  issn:
  - 0020-1669
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Highly adaptive nature of group 15 tris(quinolyl) ligands─studies with coinage
  metals
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 62
year: '2023'
...
---
_id: '13041'
abstract:
- lang: eng
  text: A series of triarylamines was synthesised and screened for their suitability
    as catholytes in redox flow batteries using cyclic voltammetry (CV). Tris(4-aminophenyl)amine
    was found to be the strongest candidate. Solubility and initial electrochemical
    performance were promising; however, polymerisation was observed during electrochemical
    cycling leading to rapid capacity fade prescribed to a loss of accessible active
    material and the limitation of ion transport processes within the cell. A mixed
    electrolyte system of H3PO4 and HCl was found to inhibit polymerisation producing
    oligomers that consumed less active material reducing rates of degradation in
    the redox flow battery. Under these conditions Coulombic efficiency improved by
    over 4 %, the maximum number of cycles more than quadrupled and an additional
    theoretical capacity of 20 % was accessed. This paper is, to our knowledge, the
    first example of triarylamines as catholytes in all-aqueous redox flow batteries
    and emphasises the impact supporting electrolytes can have on electrochemical
    performance.
acknowledgement: The authors (N.L.F and R.B.J) would like to acknowledge the funding
  contributions of Shell and the EPRSC via I–Case studentships (grants no. EP/V519662/1
  and EP/R511870/1 respectively). T.I would like to thank the ERC advanced Investigator
  Grant for CPG (EC H2020 835073). Thank you to Zhen Wang from the University of Cambridge
  for measuring GPC, the Yusuf Hamied Department of Chemistry's mass spectrometry
  service for MS measurements and analysis and Dr Andrew Bond from the University
  of Cambridge for XRD measurement and analysis.
article_number: e202300128
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Nadia L.
  full_name: Farag, Nadia L.
  last_name: Farag
- first_name: Rajesh B
  full_name: Jethwa, Rajesh B
  id: 4cc538d5-803f-11ed-ab7e-8139573aad8f
  last_name: Jethwa
  orcid: 0000-0002-0404-4356
- first_name: Alice E.
  full_name: Beardmore, Alice E.
  last_name: Beardmore
- first_name: Teresa
  full_name: Insinna, Teresa
  last_name: Insinna
- first_name: Christopher A.
  full_name: O'Keefe, Christopher A.
  last_name: O'Keefe
- first_name: Peter A.A.
  full_name: Klusener, Peter A.A.
  last_name: Klusener
- first_name: Clare P.
  full_name: Grey, Clare P.
  last_name: Grey
- first_name: Dominic S.
  full_name: Wright, Dominic S.
  last_name: Wright
citation:
  ama: Farag NL, Jethwa RB, Beardmore AE, et al. Triarylamines as catholytes in aqueous
    organic redox flow batteries. <i>ChemSusChem</i>. 2023;16(13). doi:<a href="https://doi.org/10.1002/cssc.202300128">10.1002/cssc.202300128</a>
  apa: Farag, N. L., Jethwa, R. B., Beardmore, A. E., Insinna, T., O’Keefe, C. A.,
    Klusener, P. A. A., … Wright, D. S. (2023). Triarylamines as catholytes in aqueous
    organic redox flow batteries. <i>ChemSusChem</i>. Wiley. <a href="https://doi.org/10.1002/cssc.202300128">https://doi.org/10.1002/cssc.202300128</a>
  chicago: Farag, Nadia L., Rajesh B Jethwa, Alice E. Beardmore, Teresa Insinna, Christopher
    A. O’Keefe, Peter A.A. Klusener, Clare P. Grey, and Dominic S. Wright. “Triarylamines
    as Catholytes in Aqueous Organic Redox Flow Batteries.” <i>ChemSusChem</i>. Wiley,
    2023. <a href="https://doi.org/10.1002/cssc.202300128">https://doi.org/10.1002/cssc.202300128</a>.
  ieee: N. L. Farag <i>et al.</i>, “Triarylamines as catholytes in aqueous organic
    redox flow batteries,” <i>ChemSusChem</i>, vol. 16, no. 13. Wiley, 2023.
  ista: Farag NL, Jethwa RB, Beardmore AE, Insinna T, O’Keefe CA, Klusener PAA, Grey
    CP, Wright DS. 2023. Triarylamines as catholytes in aqueous organic redox flow
    batteries. ChemSusChem. 16(13), e202300128.
  mla: Farag, Nadia L., et al. “Triarylamines as Catholytes in Aqueous Organic Redox
    Flow Batteries.” <i>ChemSusChem</i>, vol. 16, no. 13, e202300128, Wiley, 2023,
    doi:<a href="https://doi.org/10.1002/cssc.202300128">10.1002/cssc.202300128</a>.
  short: N.L. Farag, R.B. Jethwa, A.E. Beardmore, T. Insinna, C.A. O’Keefe, P.A.A.
    Klusener, C.P. Grey, D.S. Wright, ChemSusChem 16 (2023).
date_created: 2023-05-21T22:01:05Z
date_published: 2023-07-06T00:00:00Z
date_updated: 2023-11-14T11:28:23Z
day: '06'
ddc:
- '540'
department:
- _id: StFr
doi: 10.1002/cssc.202300128
external_id:
  isi:
  - '000985051300001'
  pmid:
  - '36970847'
file:
- access_level: open_access
  checksum: efa0713289995af83a2147b3e8e1d6a6
  content_type: application/pdf
  creator: dernst
  date_created: 2023-11-14T11:27:16Z
  date_updated: 2023-11-14T11:27:16Z
  file_id: '14532'
  file_name: 2023_ChemSusChem_Farag.pdf
  file_size: 1168683
  relation: main_file
  success: 1
file_date_updated: 2023-11-14T11:27:16Z
has_accepted_license: '1'
intvolume: '        16'
isi: 1
issue: '13'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
pmid: 1
publication: ChemSusChem
publication_identifier:
  eissn:
  - 1864-564X
  issn:
  - 1864-5631
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Triarylamines as catholytes in aqueous organic redox flow batteries
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2023'
...
---
_id: '13044'
abstract:
- lang: eng
  text: Singlet oxygen (1O2) formation is now recognised as a key aspect of non-aqueous
    oxygen redox chemistry. For identifying 1O2, chemical trapping via 9,10-dimethylanthracene
    (DMA) to form the endoperoxide (DMA-O2) has become the mainstay method due to
    its sensitivity, selectivity, and ease of use. While DMA has been shown to be
    selective for 1O2, rather than forming DMA-O2 with a wide variety of potentially
    reactive O-containing species, false positives might hypothetically be obtained
    in the presence of previously overlooked species. Here, we first give unequivocal
    direct spectroscopic proof by the 1O2-specific near infrared (NIR) emission at
    1270 nm for the previously proposed 1O2 formation pathways, which centre around
    superoxide disproportionation. We then show that peroxocarbonates, common intermediates
    in metal-O2 and metal carbonate electrochemistry, do not produce false-positive
    DMA-O2. Moreover, we identify a previously unreported 1O2-forming pathway through
    the reaction of CO2 with superoxide. Overall, we give unequivocal proof for 1O2
    formation in non-aqueous oxygen redox and show that chemical trapping with DMA
    is a reliable method to assess 1O2 formation.
article_processing_charge: No
article_type: original
author:
- first_name: Soumyadip
  full_name: Mondal, Soumyadip
  id: d25d21ef-dc8d-11ea-abe3-ec4576307f48
  last_name: Mondal
- first_name: Rajesh B
  full_name: Jethwa, Rajesh B
  id: 4cc538d5-803f-11ed-ab7e-8139573aad8f
  last_name: Jethwa
  orcid: 0000-0002-0404-4356
- first_name: Bhargavi
  full_name: Pant, Bhargavi
  id: 50c64d4d-eb97-11eb-a6c2-d33e5e14f112
  last_name: Pant
- first_name: Robert
  full_name: Hauschild, Robert
  id: 4E01D6B4-F248-11E8-B48F-1D18A9856A87
  last_name: Hauschild
  orcid: 0000-0001-9843-3522
- first_name: Stefan Alexander
  full_name: Freunberger, Stefan Alexander
  id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
  last_name: Freunberger
  orcid: 0000-0003-2902-5319
citation:
  ama: 'Mondal S, Jethwa RB, Pant B, Hauschild R, Freunberger SA. Singlet oxygen in
    non-aqueous oxygen redox: Direct spectroscopic evidence for formation pathways
    and reliability of chemical probes. <i>Faraday Discussions</i>. 2023. doi:<a href="https://doi.org/10.1039/d3fd00088e">10.1039/d3fd00088e</a>'
  apa: 'Mondal, S., Jethwa, R. B., Pant, B., Hauschild, R., &#38; Freunberger, S.
    A. (2023). Singlet oxygen in non-aqueous oxygen redox: Direct spectroscopic evidence
    for formation pathways and reliability of chemical probes. <i>Faraday Discussions</i>.
    Royal Society of Chemistry. <a href="https://doi.org/10.1039/d3fd00088e">https://doi.org/10.1039/d3fd00088e</a>'
  chicago: 'Mondal, Soumyadip, Rajesh B Jethwa, Bhargavi Pant, Robert Hauschild, and
    Stefan Alexander Freunberger. “Singlet Oxygen in Non-Aqueous Oxygen Redox: Direct
    Spectroscopic Evidence for Formation Pathways and Reliability of Chemical Probes.”
    <i>Faraday Discussions</i>. Royal Society of Chemistry, 2023. <a href="https://doi.org/10.1039/d3fd00088e">https://doi.org/10.1039/d3fd00088e</a>.'
  ieee: 'S. Mondal, R. B. Jethwa, B. Pant, R. Hauschild, and S. A. Freunberger, “Singlet
    oxygen in non-aqueous oxygen redox: Direct spectroscopic evidence for formation
    pathways and reliability of chemical probes,” <i>Faraday Discussions</i>. Royal
    Society of Chemistry, 2023.'
  ista: 'Mondal S, Jethwa RB, Pant B, Hauschild R, Freunberger SA. 2023. Singlet oxygen
    in non-aqueous oxygen redox: Direct spectroscopic evidence for formation pathways
    and reliability of chemical probes. Faraday Discussions.'
  mla: 'Mondal, Soumyadip, et al. “Singlet Oxygen in Non-Aqueous Oxygen Redox: Direct
    Spectroscopic Evidence for Formation Pathways and Reliability of Chemical Probes.”
    <i>Faraday Discussions</i>, Royal Society of Chemistry, 2023, doi:<a href="https://doi.org/10.1039/d3fd00088e">10.1039/d3fd00088e</a>.'
  short: S. Mondal, R.B. Jethwa, B. Pant, R. Hauschild, S.A. Freunberger, Faraday
    Discussions (2023).
date_created: 2023-05-22T06:53:34Z
date_published: 2023-05-17T00:00:00Z
date_updated: 2023-12-13T11:19:07Z
day: '17'
department:
- _id: StFr
- _id: Bio
doi: 10.1039/d3fd00088e
external_id:
  isi:
  - '001070423500001'
isi: 1
keyword:
- Physical and Theoretical Chemistry
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1039/d3fd00088e
month: '05'
oa: 1
oa_version: Published Version
publication: Faraday Discussions
publication_identifier:
  eissn:
  - 1364-5498
  issn:
  - 1359-6640
publication_status: epub_ahead
publisher: Royal Society of Chemistry
quality_controlled: '1'
status: public
title: 'Singlet oxygen in non-aqueous oxygen redox: Direct spectroscopic evidence
  for formation pathways and reliability of chemical probes'
tmp:
  image: /images/cc_by_nc.png
  legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
  short: CC BY-NC (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
