TY - JOUR
T1 - NiFe-layered double hydroxide arrays for oxygen evolution reaction in fresh water and seawater
AU - Dong, Guofa
AU - Xie, Fengyan
AU - Kou, Fangxia
AU - Chen, Tingting
AU - Wang, Fengyun
AU - Zhou, Yingwu
AU - Wu, Kechen
AU - Du, Shaowu
AU - Fang, Ming
AU - Ho, Johnny C.
N1 - Funding Information:
The authors sincerely acknowledge the National Natural Science Foundation of China (Grant No. 21972060 and Grant No. 21805194 ), the Natural Science Foundation of Fujian Province (Grant No. 2020J02046 ), the Fujian Key Laboratory of Functional Marine Sensing Materials (Grand No. 308031050402 ), the research project on education and research for the middle-young teachers of Fujian province (Grant No. JAT171038 ), the Key Research and Development Program of Shandong Province (Grant No. 2019GGX102067 ), the Environment and Conservation Fund of Hong Kong SAR, China (Grant No. ECF 2020-13 ), and the Foshan Innovative and Entrepreneurial Research Team Program (Grant No. 2018IT100031 ) for financial support.
Publisher Copyright:
© 2021 Elsevier Ltd
PY - 2021/12
Y1 - 2021/12
N2 - The development of active, durable, and cost-effective electrocatalysts for the oxygen evolution reaction (OER) is crucial for viable hydrogen production from water by electrolysis. In this work, we report a mild, atmospheric pressure-based chemical method for the synthesis of NiFe-containing layered double hydroxide (LDH) nanosheet arrays on a carbon fiber cloth (CC). The obtained NiFe-LDH/CC composites with various Ni/Fe ratios show good performance for OER in alkaline aqueous solutions. Among them, the sample with a Ni/Fe ratio of 6:4 exhibits the best OER activity with overpotential values of only 226 mV in water and 238 mV in seawater at a current density of 10 mA cm−2, which are much lower than those of the benchmarking RuO2 catalyst. The catalytic activity can be maintained for at least 450 h for OER in fresh water and 165 h in seawater at a current density of 100 mA cm−2.
AB - The development of active, durable, and cost-effective electrocatalysts for the oxygen evolution reaction (OER) is crucial for viable hydrogen production from water by electrolysis. In this work, we report a mild, atmospheric pressure-based chemical method for the synthesis of NiFe-containing layered double hydroxide (LDH) nanosheet arrays on a carbon fiber cloth (CC). The obtained NiFe-LDH/CC composites with various Ni/Fe ratios show good performance for OER in alkaline aqueous solutions. Among them, the sample with a Ni/Fe ratio of 6:4 exhibits the best OER activity with overpotential values of only 226 mV in water and 238 mV in seawater at a current density of 10 mA cm−2, which are much lower than those of the benchmarking RuO2 catalyst. The catalytic activity can be maintained for at least 450 h for OER in fresh water and 165 h in seawater at a current density of 100 mA cm−2.
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U2 - 10.1016/j.mtener.2021.100883
DO - 10.1016/j.mtener.2021.100883
M3 - Article
AN - SCOPUS:85119179064
SN - 2468-6069
VL - 22
JO - Materials Today Energy
JF - Materials Today Energy
M1 - 100883
ER -
