期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 557, 期 -, 页码 10-17出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2019.09.012
关键词
Electrodeposition; Nickel iron hydroxide; Oxygen evolution reaction; Urea oxidation reaction; Hydrazine oxidation reaction
资金
- Human Resources Development Program of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korean Government Ministry of Trade, Industry and Energy [20194030202470]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [20173010012980]
In recent years, low-cost, non-noble metal-based and stable catalysts have gained attention for the development of clean energy devices. Additionally, the synthesis of materials that can exhibit more than one electrocatalytic reaction is notable. In this work, stepwise electrodeposited nickel-iron hydroxide nanoarrays are investigated as anode electrocatalysts with enhanced performance towards the oxidation of water, urea, and hydrazine. The stepwise electrodeposited nickel-iron hydroxide (NiFe(OH)(2)-SD/NF) electrodes show excellent electrocatalytic activity and stability for the oxygen evolution reaction (OER) with a low potential of 1.45 V (vs RHE) at a current density of 10 mA cm(-2). These electrodes further display excellent catalytic activity towards the urea oxidation reaction (UOR) and hydrazine oxidation reaction (HzOR) with potentials lower than 1.32 V (vs RHE) and 0.06 V (vs RHE), respectively. Owing to synergistic effects, a porous structure for mass transport leads to excellent electrocatalytic performance. This non-precious-metal nickel-iron hydroxide, prepared by a simple synthesis approach, is promising for hybrid water electrolysis applications and the development of environmentally friendly clean energy reactions. (C) 2019 Published by Elsevier Inc.
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