---
_id: '7281'
abstract:
- lang: eng
  text: Li–O2 batteries are plagued by side reactions that cause poor rechargeability
    and efficiency. These reactions were recently revealed to be predominantly caused
    by singlet oxygen, which can be neutralized by chemical traps or physical quenchers.
    However, traps are irreversibly consumed and thus only active for a limited time,
    and so far identified quenchers lack oxidative stability to be suitable for typically
    required recharge potentials. Thus, reducing the charge potential within the stability
    limit of the quencher and/or finding more stable quenchers is required. Here,
    we show that dimethylphenazine as a redox mediator decreases the charge potential
    well within the stability limit of the quencher 1,4-diazabicyclo[2.2.2]octane.
    The quencher can thus mitigate the parasitic reactions without being oxidatively
    decomposed. At the same time the quencher protects the redox mediator from singlet
    oxygen attack. The mutual conservation of the redox mediator and the quencher
    is rational for stable and effective Li–O2 batteries.
article_processing_charge: No
article_type: original
author:
- first_name: Won-Jin
  full_name: Kwak, Won-Jin
  last_name: Kwak
- first_name: Stefan Alexander
  full_name: Freunberger, Stefan Alexander
  id: A8CA28E6-CE23-11E9-AD2D-EC27E6697425
  last_name: Freunberger
  orcid: 0000-0003-2902-5319
- first_name: Hun
  full_name: Kim, Hun
  last_name: Kim
- first_name: Jiwon
  full_name: Park, Jiwon
  last_name: Park
- first_name: Trung Thien
  full_name: Nguyen, Trung Thien
  last_name: Nguyen
- first_name: Hun-Gi
  full_name: Jung, Hun-Gi
  last_name: Jung
- first_name: Hye Ryung
  full_name: Byon, Hye Ryung
  last_name: Byon
- first_name: Yang-Kook
  full_name: Sun, Yang-Kook
  last_name: Sun
citation:
  ama: Kwak W-J, Freunberger SA, Kim H, et al. Mutual conservation of redox mediator
    and singlet oxygen quencher in Lithium–Oxygen batteries. <i>ACS Catalysis</i>.
    2019;9(11):9914-9922. doi:<a href="https://doi.org/10.1021/acscatal.9b01337">10.1021/acscatal.9b01337</a>
  apa: Kwak, W.-J., Freunberger, S. A., Kim, H., Park, J., Nguyen, T. T., Jung, H.-G.,
    … Sun, Y.-K. (2019). Mutual conservation of redox mediator and singlet oxygen
    quencher in Lithium–Oxygen batteries. <i>ACS Catalysis</i>. ACS. <a href="https://doi.org/10.1021/acscatal.9b01337">https://doi.org/10.1021/acscatal.9b01337</a>
  chicago: Kwak, Won-Jin, Stefan Alexander Freunberger, Hun Kim, Jiwon Park, Trung
    Thien Nguyen, Hun-Gi Jung, Hye Ryung Byon, and Yang-Kook Sun. “Mutual Conservation
    of Redox Mediator and Singlet Oxygen Quencher in Lithium–Oxygen Batteries.” <i>ACS
    Catalysis</i>. ACS, 2019. <a href="https://doi.org/10.1021/acscatal.9b01337">https://doi.org/10.1021/acscatal.9b01337</a>.
  ieee: W.-J. Kwak <i>et al.</i>, “Mutual conservation of redox mediator and singlet
    oxygen quencher in Lithium–Oxygen batteries,” <i>ACS Catalysis</i>, vol. 9, no.
    11. ACS, pp. 9914–9922, 2019.
  ista: Kwak W-J, Freunberger SA, Kim H, Park J, Nguyen TT, Jung H-G, Byon HR, Sun
    Y-K. 2019. Mutual conservation of redox mediator and singlet oxygen quencher in
    Lithium–Oxygen batteries. ACS Catalysis. 9(11), 9914–9922.
  mla: Kwak, Won-Jin, et al. “Mutual Conservation of Redox Mediator and Singlet Oxygen
    Quencher in Lithium–Oxygen Batteries.” <i>ACS Catalysis</i>, vol. 9, no. 11, ACS,
    2019, pp. 9914–22, doi:<a href="https://doi.org/10.1021/acscatal.9b01337">10.1021/acscatal.9b01337</a>.
  short: W.-J. Kwak, S.A. Freunberger, H. Kim, J. Park, T.T. Nguyen, H.-G. Jung, H.R.
    Byon, Y.-K. Sun, ACS Catalysis 9 (2019) 9914–9922.
date_created: 2020-01-15T12:12:40Z
date_published: 2019-11-01T00:00:00Z
date_updated: 2021-01-12T08:12:44Z
day: '01'
ddc:
- '540'
doi: 10.1021/acscatal.9b01337
extern: '1'
file:
- access_level: open_access
  checksum: bbaebfe5ff0bcab6235821ba3460b7de
  content_type: application/pdf
  creator: sfreunbe
  date_created: 2020-06-29T15:19:30Z
  date_updated: 2020-07-14T12:47:55Z
  file_id: '8053'
  file_name: Revised Manuscript.pdf
  file_size: 1199086
  relation: main_file
file_date_updated: 2020-07-14T12:47:55Z
has_accepted_license: '1'
intvolume: '         9'
issue: '11'
language:
- iso: eng
month: '11'
oa: 1
oa_version: Submitted Version
page: 9914-9922
publication: ACS Catalysis
publication_identifier:
  issn:
  - 2155-5435
publication_status: published
publisher: ACS
quality_controlled: '1'
status: public
title: Mutual conservation of redox mediator and singlet oxygen quencher in Lithium–Oxygen
  batteries
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9
year: '2019'
...