Electrocatalysts for the oxidation of ethanol in proton exchange membrane fuel cells, electrolysis cells, and sensors

IF 7.9 2区化学 Q1 CHEMISTRY, PHYSICAL

Current Opinion in Electrochemistry Pub Date : 2024-06-10 DOI:10.1016/j.coelec.2024.101553

Peter G. Pickup , E. Bradley Easton

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引用次数: 0

Abstract

The potential for direct ethanol fuel cells (DEFCs) to provide sustainable, widely accessible power has driven development of electrocatalysts for the ethanol oxidation reaction (EOR) over several decades. However, low power output, low efficiencies, and the production of acetic acid and acetaldehyde byproducts has caused progress to stall. Consequently, interest in this area is transitioning to electrolysis of ethanol to produce green hydrogen and commodity chemicals. Concurrently, applications of DEFC as breath alcohol sensors in breathalyzers are increasing, and this has become an established commercial market for EOR catalysts. Progress in the development of these technologies has been hampered by the limited number of catalysts that have been evaluated in proton exchange membrane cells, the paucity of data on product distributions, and limited gas-phase-sensing studies.

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质子交换膜燃料电池、电解槽和传感器中的乙醇氧化电催化剂

几十年来，直接乙醇燃料电池（DEFCs）提供可持续、广泛使用的电力的潜力推动了乙醇氧化反应（EOR）电催化剂的发展。然而，低功率输出、低效率以及乙酸和乙醛副产物的产生等问题导致研究进展停滞不前。因此，人们对这一领域的兴趣正在转向电解乙醇，以生产绿色氢气和商品化学品。与此同时，DEFC 作为呼气酒精传感器在呼气分析仪中的应用也在不断增加，这已成为 EOR 催化剂的一个成熟的商业市场。在质子交换膜电池中进行评估的催化剂数量有限，有关产品分布的数据匮乏，气相传感研究有限，这些都阻碍了这些技术的发展。

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来源期刊

Current Opinion in Electrochemistry Chemistry-Analytical Chemistry

CiteScore

14.00

自引率

5.90%

发文量

272

审稿时长

73 days

期刊介绍： The development of the Current Opinion journals stemmed from the acknowledgment of the growing challenge for specialists to stay abreast of the expanding volume of information within their field. In Current Opinion in Electrochemistry, they help the reader by providing in a systematic manner: 1.The views of experts on current advances in electrochemistry in a clear and readable form. 2.Evaluations of the most interesting papers, annotated by experts, from the great wealth of original publications. In the realm of electrochemistry, the subject is divided into 12 themed sections, with each section undergoing an annual review cycle: • Bioelectrochemistry • Electrocatalysis • Electrochemical Materials and Engineering • Energy Storage: Batteries and Supercapacitors • Energy Transformation • Environmental Electrochemistry • Fundamental & Theoretical Electrochemistry • Innovative Methods in Electrochemistry • Organic & Molecular Electrochemistry • Physical & Nano-Electrochemistry • Sensors & Bio-sensors •