Selective acid leaching: a simple way to engineer cobalt oxide nanostructures for the electrochemical oxygen evolution reaction

被引:30
作者
Yu, Mingquan [1 ]
Belthle, Kendra Solveig [1 ]
Tuysuz, Cengiz [2 ]
Tuysuz, Harun [1 ]
机构
[1] Max Planck Inst Kohlenforsch, Kaiser Wilhelm Pl 1, D-45470 Mulheim, Germany
[2] Usak Univ, Fac Educ, Usak, Turkey
关键词
LAYERED DOUBLE HYDROXIDE; WATER OXIDATION; CO3O4; ELECTROCATALYSTS; HYDROGEN; CATALYST; COMOO4;
D O I
10.1039/c9ta07835e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Developing a simple and cost-effective strategy to construct earth-abundant catalysts is in high demand for diverse applications. Herein, a general and facile strategy is developed to engineer cobalt oxide nanostructures via selective acid leaching for the electrochemical oxygen evolution reaction (OER). A leaching process is implemented to selectively remove CoMoO4 by treating mixed Co-Mo oxides in diluted hydrochloric acid solution, resulting in the formation of sub-5 nm particles and a threefold increase in the specific surface area (up to 150 m(2) g(-1)). The leached oxides exhibit superior OER activity to pristine oxides as a result of (i) a larger surface area, (ii) phase purification to expose more active Co3O4 species to the reactant, and (iii) faster charge transfer kinetics for the OER. This strategy can be also applied to a broader range of earth-abundant metals, where a second metal (Li, Ca, and Mg) is selectively leached out, which results in a material with a larger surface area and enhanced catalytic performance for the OER. Moreover, various metal oxides with a high surface area, such as NiO and Fe2O3, can be prepared via this simple synthetic method. This work will pave a new practical way for the production of high surface area catalysts for diverse applications.
引用
收藏
页码:23130 / 23139
页数:10
相关论文
共 56 条
[1]   Electrocatalytic Water Oxidation at Neutral pH by a Nanostructured Co(PO3)2 Anode [J].
Ahn, Hyun S. ;
Tilley, T. Don .
ADVANCED FUNCTIONAL MATERIALS, 2013, 23 (02) :227-233
[2]   Iridium As Catalyst and Cocatalyst for Oxygen Evolution/Reduction in Acidic Polymer Electrolyte Membrane Electrolyzers and Fuel Cells [J].
Antolini, Ermete .
ACS CATALYSIS, 2014, 4 (05) :1426-1440
[3]   MICROCALORIMETRIC STUDY OF THE ACIDITY AND BASICITY OF METAL-OXIDE SURFACES [J].
AUROUX, A ;
GERVASINI, A .
JOURNAL OF PHYSICAL CHEMISTRY, 1990, 94 (16) :6371-6379
[4]   Reversible amorphization and the catalytically active state of crystalline Co3O4 during oxygen evolution [J].
Bergmann, Arno ;
Martinez-Moreno, Elias ;
Teschner, Detre ;
Chernev, Petko ;
Gliech, Manuel ;
de Araujo, Jorge Ferreira ;
Reier, Tobias ;
Dau, Holger ;
Strasser, Peter .
NATURE COMMUNICATIONS, 2015, 6
[5]   Co3O4 Nanoparticle Water-Oxidation Catalysts Made by Pulsed-Laser Ablation in Liquids [J].
Blakemore, James D. ;
Gray, Harry B. ;
Winkler, Jay R. ;
Mueller, Astrid M. .
ACS CATALYSIS, 2013, 3 (11) :2497-2500
[6]   Oxygen Evolution Reaction Electrocatalysis on Transition Metal Oxides and (Oxy)hydroxides: Activity Trends and Design Principles [J].
Burke, Michaela S. ;
Enman, Lisa J. ;
Batchellor, Adam S. ;
Zou, Shihui ;
Boettcher, Shannon W. .
CHEMISTRY OF MATERIALS, 2015, 27 (22) :7549-7558
[7]   Strong-Coupled Cobalt Borate Nanosheets/Graphene Hybrid as Electrocatalyst for Water Oxidation Under Both Alkaline and Neutral Conditions [J].
Chen, Pengzuo ;
Xu, Kun ;
Zhou, Tianpei ;
Tong, Yun ;
Wu, Junchi ;
Cheng, Han ;
Lu, Xiuli ;
Ding, Hui ;
Wu, Changzheng ;
Xie, Yi .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2016, 55 (07) :2488-2492
[8]   The path towards sustainable energy [J].
Chu, Steven ;
Cui, Yi ;
Liu, Nian .
NATURE MATERIALS, 2017, 16 (01) :16-22
[9]   Iron-Induced Activation of Ordered Mesoporous Nickel Cobalt Oxide Electrocatalyst for the Oxygen Evolution Reaction [J].
Deng, Xiaohui ;
Ozturk, Secil ;
Weidenthaler, Claudia ;
Tuysuz, Harun .
ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (25) :21225-21233
[10]   Protocol for the Nanocasting Method: Preparation of Ordered Mesoporous Metal Oxides [J].
Deng, Xiaohui ;
Chen, Kun ;
Tueysuez, Harun .
CHEMISTRY OF MATERIALS, 2017, 29 (01) :40-52