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微米花状NiFe-LDH的制备及其析氧性能研究

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以层状双金属氢氧化物为基础,采用简单的水热合成法制备一系列二元NiFe-LDH催化剂.利用XRD、SEM和极化曲线等测试了系列催化剂的晶体结构、形貌和析氧活性.相比于单一的Ni(OH)2催化剂,优化制备的NiFe-LDH-1具有最佳的OER活性,达到10 mA·cm-2和100 mA·cm-2的电流密度时,NiFe-LDH-1所需的过电位为218 mV和264 mV,Tafel斜率为36.3 mV·dec-1,同时该催化剂拥有优异的催化稳定性.
Microflower-Like NiFe-LDH Catalyst:Preparation and Performance of Oxygen Evolution Reaction
Based on layered double hydroxides, a series of binary NiFe-LDH catalysts were prepared by a simple hydrothermal synthesis method. The crystal structure, morphology and oxygen evolution activity of the catalysts were tested by XRD, SEM and polarization curve. Compared with Ni ( OH ) 2 , NiFe-LDH-1 exhibited the best OER activity with overpotentials of 218 mV and 264 mV at 10 mA·cm-2 and 100 mA·cm-2 , and a Tafel slope of 36.3 mV·dec-1 . Meanwhile, NiFe-LDH-1 exhibited excellent long-term stability.

oxygen evolution reactionNiFe-LDHwater splittinghydrothermal synthesis

焦宇鸿、吴方、葛金龙、秦英月

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蚌埠学院材料与化学工程学院,安徽 蚌埠233030

安徽省硅基新材料工程实验室,安徽 蚌埠233030

析氧反应 NiFe-LDH 电解水 水热制备

蚌埠学院高水平科研培育项目蚌埠学院高层次人才科研启动基金

2021pyxm08BBXY2021KYQD04

2024

长春师范大学学报
长春师范学院

长春师范大学学报

CHSSCD
影响因子:0.312
ISSN:1008-178X
年,卷(期):2024.43(4)
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