A facile, green and time-saving method to prepare partially crystalline NiFe layered double hydroxide nanosheets on nickel foam for superior OER catalysis

被引：0

作者：

Li, Hongying ^{[1
]}

Wang, Xueliang ^{[1
]}

Wang, Tao ^{[1
]}

Xiao, Fengxia ^{[1
]}

机构：

[1] School of Chemistry and Chemical Engineering, Heze University, Heze,274015, China

来源：

Journal of Alloys and Compounds | 2020年 / 844卷

关键词：

The partially crystalline NiFe layered double hydroxide (pc-NiFe-LDH) nanosheets; as a high-efficient and cost-effective catalyst toward oxygen evolution reaction (OER); were synthesized by a facile; green and time-saving strategy in this work. The pc-NiFe-LDH can spontaneously grow in situ on the Ni foams (NF) at room temperature and does not consume any extra energy. The 3D structure of the pc-NiFe-LDH/NF with more active sites was confirmed by SEM; TEM and the calculated large electrochemical active surface area (ECSA) of 118 cm2; which endowed the pc-NiFe-LDH/NF with an outstanding OER performance in 1.0 M KOH. The overpotentials of 133 mV and 153 mV (vs. RHE; with 95% iR compensation) at the current density of 20 mA cm−2 and 100 mA cm−2 were obtained; respectively. The pc-NiFe-LDH/NF showed rapid OER kinetics and efficient mass and electron transfer with a small Tafel slope of 30 mV dec−1; and excellent endurance for 17 h long-term continuous OER operation at 1.609 V (vs. RHE; without iR correction) with 2.6% enhancement of the current density. The performance was superior to those of most reported NiFe-based catalysts; which made it grand feasibility in practical industrial applications. © 2020;

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摘要：

Journal article (JA)

引用

共 4 条

[1] A facile, green and time-saving method to prepare partially crystalline NiFe layered double hydroxide nanosheets on nickel foam for superior OER catalysis
Li, Hongying
Wang, Xueliang
Wang, Tao
Xiao, Fengxia
JOURNAL OF ALLOYS AND COMPOUNDS, 2020, 844
[2] Cu-doped NiFe layered double hydroxide nanosheets on nickel foam as an effective and durable electrocatalyst for oxygen evolution reaction
Wang, Xiaohan
Xing, Junjie
Fu, Xiuli
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2023, 37 (29):
[3] Preferential Adsorption of Hydroxide Ions onto Partially Crystalline NiFe-Layered Double Hydroxides Leads to Efficient and Selective OER in Alkaline Seawater
Tu, Qingqing
Liu, Wenwen
Jiang, Meng
Wang, Wenjuan
Kang, Qing
Wang, Pengcheng
Zhou, Weijia
Zhou, Feimeng
ACS APPLIED ENERGY MATERIALS, 2021, 4 (05): : 4630 - 4637
[4] Facile fabrication of ethylene glycol intercalated cobalt-nickel layered double hydroxide nanosheets supported on nickel foam as flexible binder-free electrodes for advanced electrochemical energy storage
Wang, Changhui
Zhang, Xiong
Sun, Xianzhong
Ma, Yanwei
ELECTROCHIMICA ACTA, 2016, 191 : 329 - 336

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