Gas diffusion electrodes (GDEs) for electrochemical reduction of carbon dioxide, carbon monoxide, and dinitrogen to value-added products: a review

被引:345
作者
Rabiee, Hesamoddin [1 ]
Ge, Lei [2 ,3 ]
Zhang, Xueqin [1 ]
Hu, Shihu [1 ]
Li, Mengran [3 ]
Yuan, Zhiguo [1 ]
机构
[1] Univ Queensland, Fac Engn Architecture & Informat Technol, Adv Water Management Ctr, St Lucia, Qld 4072, Australia
[2] Univ Southern Queensland, Ctr Future Mat, Springfield Cent, Qld 4300, Australia
[3] Univ Queensland, Sch Chem Engn, Brisbane, Qld 4072, Australia
基金
澳大利亚研究理事会;
关键词
MEMBRANE FUEL-CELLS; ELECTROCATALYTIC CO2 REDUCTION; GENERAL TECHNOECONOMIC ANALYSIS; HABER-BOSCH PROCESS; POLYMER ELECTROLYTE; OXYGEN REDUCTION; NITROGEN REDUCTION; LARGE-SCALE; EFFICIENT CO2; FORMIC-ACID;
D O I
10.1039/d0ee03756g
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Electrochemical reduction of gaseous feeds such as CO2, CO, and N-2 holds promise for sustainable energy and chemical production. Practical application of this technology is impeded by slow mass transport of the sparingly soluble gases to conventional planar electrodes. Gas diffusion electrodes (GDEs) maintain a high gas concentration in the vicinity of the catalyst and improve mass transport, thereby resulting in current densities higher by orders of magnitude. However, gaseous feeds cause changes to the GDE environment, and specific features are required to efficiently tune the product selectivity and improve reaction stability. Herein, with a comprehensive review of the challenges and advances in GDE development for various electrocatalytic reactions, we intend to complement the body of material-focused reviews. This review outlines GDE fundamentals and highlights key advantages of GDE over conventional electrodes. Through critical discussion about steps in GDE fabrication, and specific shortcomings and remedial strategies for various electrochemical applications, this review discusses connections, unique design criteria, and potential opportunities for gas-fed reactions and desired products. Finally, priorities for future studies are suggested, to support the advancement and scale-up of GDE-based electrochemical technologies.
引用
收藏
页码:1959 / 2008
页数:50
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