---
_id: '12832'
abstract:
- lang: eng
text: The development of cost-effective, high-activity and stable bifunctional catalysts
for the oxygen reduction and evolution reactions (ORR/OER) is essential for zinc–air
batteries (ZABs) to reach the market. Such catalysts must contain multiple adsorption/reaction
sites to cope with the high demands of reversible oxygen electrodes. Herein, we
propose a high entropy alloy (HEA) based on relatively abundant elements as a
bifunctional ORR/OER catalyst. More specifically, we detail the synthesis of a
CrMnFeCoNi HEA through a low-temperature solution-based approach. Such HEA displays
superior OER performance with an overpotential of 265 mV at a current density
of 10 mA/cm2, and a 37.9 mV/dec Tafel slope, well above the properties of a standard
commercial catalyst based on RuO2. This high performance is partially explained
by the presence of twinned defects, the incidence of large lattice distortions,
and the electronic synergy between the different components, being Cr key to decreasing
the energy barrier of the OER rate-determining step. CrMnFeCoNi also displays
superior ORR performance with a half-potential of 0.78 V and an onset potential
of 0.88 V, comparable with commercial Pt/C. The potential gap (Egap) between the
OER overpotential and the ORR half-potential of CrMnFeCoNi is just 0.734 V. Taking
advantage of these outstanding properties, ZABs are assembled using the CrMnFeCoNi
HEA as air cathode and a zinc foil as the anode. The assembled cells provide an
open-circuit voltage of 1.489 V, i.e. 90% of its theoretical limit (1.66 V), a
peak power density of 116.5 mW/cm2, and a specific capacity of 836 mAh/g that
stays stable for more than 10 days of continuous cycling, i.e. 720 cycles @ 8
mA/cm2 and 16.6 days of continuous cycling, i.e. 1200 cycles @ 5 mA/cm2.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: 'The authors thank the support from the project COMBENERGY, PID2019-105490RB-C32,
from the Spanish Ministerio de Ciencia e Innovación. The authors acknowledge funding
from Generalitat de Catalunya 2021 SGR 01581 and 2021 SGR 00457. ICN2 acknowledges
the Severo Ochoa program from Spanish MINECO (Grant No. SEV-2017-0706). IREC and
ICN2 are funded by the CERCA Programme from the Generalitat de Catalunya. ICN2 is
supported by the Severo Ochoa program from Spanish MCIN / AEI (Grant No.: CEX2021-001214-S).
ICN2 acknowledges funding from Generalitat de Catalunya 2017 SGR 327. This study
was supported by MCIN with funding from European Union NextGenerationEU (PRTR-C17.I1)
and Generalitat de Catalunya. The authors thank the support from the project NANOGEN
(PID2020-116093RB-C43), funded by MCIN/ AEI/10.13039/501100011033/ and by “ERDF
A way of making Europe”, by the “European Union”. Part of the present work has been
performed in the frameworks of Universitat de Barcelona Nanoscience PhD program.
This research was supported by the Scientific Service Units (SSU) of IST Austria
through resources provided by Electron Microscopy Facility (EMF). S. Lee. and M.
Ibáñez acknowledge funding by IST Austria and the Werner Siemens Foundation. J.
Llorca is a Serra Húnter Fellow and is grateful to ICREA Academia program and projects
MICINN/FEDER PID2021-124572OB-C31 and GC 2017 SGR 128. L. L.Yang thanks the China
Scholarship Council (CSC) for the scholarship support (202008130132). Z. F. Liang
acknowledges funding from MINECO SO-FPT PhD grant (SEV-2013-0295-17-1). J. W. Chen
and Y. Xu thank the support from The Key Research and Development Program of Hebei
Province (No. 20314305D) and the cooperative scientific research project of the
“Chunhui Program” of the Ministry of Education (2018-7). This work was supported
by the Natural Science Foundation of Sichuan province (NSFSC) and funded by the
Science and Technology Department of Sichuan Province (2022NSFSC1229).'
article_processing_charge: No
article_type: original
author:
- first_name: Ren
full_name: He, Ren
last_name: He
- first_name: Linlin
full_name: Yang, Linlin
last_name: Yang
- first_name: Yu
full_name: Zhang, Yu
last_name: Zhang
- first_name: Xiang
full_name: Wang, Xiang
last_name: Wang
- first_name: Seungho
full_name: Lee, Seungho
id: BB243B88-D767-11E9-B658-BC13E6697425
last_name: Lee
orcid: 0000-0002-6962-8598
- first_name: Ting
full_name: Zhang, Ting
last_name: Zhang
- first_name: Lingxiao
full_name: Li, Lingxiao
last_name: Li
- first_name: Zhifu
full_name: Liang, Zhifu
last_name: Liang
- first_name: Jingwei
full_name: Chen, Jingwei
last_name: Chen
- first_name: Junshan
full_name: Li, Junshan
last_name: Li
- first_name: Ahmad
full_name: Ostovari Moghaddam, Ahmad
last_name: Ostovari Moghaddam
- first_name: Jordi
full_name: Llorca, Jordi
last_name: Llorca
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
- first_name: Ying
full_name: Xu, Ying
last_name: Xu
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: He R, Yang L, Zhang Y, et al. A CrMnFeCoNi high entropy alloy boosting oxygen
evolution/reduction reactions and zinc-air battery performance. Energy Storage
Materials. 2023;58(4):287-298. doi:10.1016/j.ensm.2023.03.022
apa: He, R., Yang, L., Zhang, Y., Wang, X., Lee, S., Zhang, T., … Cabot, A. (2023).
A CrMnFeCoNi high entropy alloy boosting oxygen evolution/reduction reactions
and zinc-air battery performance. Energy Storage Materials. Elsevier. https://doi.org/10.1016/j.ensm.2023.03.022
chicago: He, Ren, Linlin Yang, Yu Zhang, Xiang Wang, Seungho Lee, Ting Zhang, Lingxiao
Li, et al. “A CrMnFeCoNi High Entropy Alloy Boosting Oxygen Evolution/Reduction
Reactions and Zinc-Air Battery Performance.” Energy Storage Materials.
Elsevier, 2023. https://doi.org/10.1016/j.ensm.2023.03.022.
ieee: R. He et al., “A CrMnFeCoNi high entropy alloy boosting oxygen evolution/reduction
reactions and zinc-air battery performance,” Energy Storage Materials,
vol. 58, no. 4. Elsevier, pp. 287–298, 2023.
ista: He R, Yang L, Zhang Y, Wang X, Lee S, Zhang T, Li L, Liang Z, Chen J, Li J,
Ostovari Moghaddam A, Llorca J, Ibáñez M, Arbiol J, Xu Y, Cabot A. 2023. A CrMnFeCoNi
high entropy alloy boosting oxygen evolution/reduction reactions and zinc-air
battery performance. Energy Storage Materials. 58(4), 287–298.
mla: He, Ren, et al. “A CrMnFeCoNi High Entropy Alloy Boosting Oxygen Evolution/Reduction
Reactions and Zinc-Air Battery Performance.” Energy Storage Materials,
vol. 58, no. 4, Elsevier, 2023, pp. 287–98, doi:10.1016/j.ensm.2023.03.022.
short: R. He, L. Yang, Y. Zhang, X. Wang, S. Lee, T. Zhang, L. Li, Z. Liang, J.
Chen, J. Li, A. Ostovari Moghaddam, J. Llorca, M. Ibáñez, J. Arbiol, Y. Xu, A.
Cabot, Energy Storage Materials 58 (2023) 287–298.
date_created: 2023-04-16T22:01:07Z
date_published: 2023-04-01T00:00:00Z
date_updated: 2023-08-01T14:08:02Z
day: '01'
department:
- _id: MaIb
doi: 10.1016/j.ensm.2023.03.022
external_id:
isi:
- '000967601700001'
intvolume: ' 58'
isi: 1
issue: '4'
language:
- iso: eng
month: '04'
oa_version: None
page: 287-298
project:
- _id: 9B8F7476-BA93-11EA-9121-9846C619BF3A
name: 'HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of
Semiconductors for Waste Heat Recovery'
publication: Energy Storage Materials
publication_identifier:
eissn:
- 2405-8297
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: A CrMnFeCoNi high entropy alloy boosting oxygen evolution/reduction reactions
and zinc-air battery performance
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 58
year: '2023'
...