Carbon- and Binder-Free Core–Shell Nanowire Arrays for Efficient Ethanol Electro-Oxidation in Alkaline Medium
Source abstract
Abstract
To achieve high electrochemical surface area (ECSA) and avoid carbon support and binder in the anode catalyst of direct ethanol fuel cell, herein, we design freestanding core–shell nickel@palladium–nickel nanowire arrays (Ni@Pd–Ni NAs) without carbon support and binder for high-efficiency ethanol electro-oxidation. Bare Ni nanowire arrays (Ni NAs) are first prepared using the facile template-assistant electrodeposition method. Subsequently, the Ni@Pd–Ni NAs are formed using one-step solution-based alloying reaction. The optimized Ni@Pd–Ni NA electrode with a high ECSA of 64.4 m 2 g –1 Pd exhibits excellent electrochemical performance (peak current density: 622 A g –1 Pd ) and cycling stability for ethanol electro-oxidation. The facilely obtained yet high-efficiency core–shell Ni@Pd–Ni NA electrode is a promising electrocatalyst, which can be utilized for oxygen reduction reaction, urea, hydrazine hydrate, and hydrogen peroxide electro-oxidation, not limited to the ethanol electro-oxidation.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electrocatalysts for Energy Conversion · Fuel Cells and Related Materials · Advanced battery technologies research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory of Hubei Province for Coal Conversion and New Carbon Materials, School of Chemistry and Chemical Engineering, Wuhan University of Science and Technology, Wuhan 430081, P. R. China
Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China
Department of Materials Science and Engineering, University of Maryland at College Park, College Park, Maryland 20742, United States
Funding
Wuhan University of Science and Technology · China Scholarship Council · National Natural Science Foundation of China · Key Laboratory of Coal Conversion and New Carbon Materials of Hubei Province, Wuhan University of Science and Technology
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