Chinese Version
Home | About Journal | Editorial Board | Information for Authors | Copyright Transfer Statement | Contact us
Nano-Porous Ni and Ni3S2/Ni Composite Electrodes: Preparation and Electrocatalytic Hydrogen Evolution Performance
Author NameAffiliationE-mail
ZHOU Qi State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China
School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China 		zhouxq301@sina.com 
OUYANG De-Kai School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China  
WANG Fan School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China  
HE Jin-Shan School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China  
LI Xin-Bao School of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, China  
Abstract: Nano-porous Ni and nano-porous Ni3S2/Ni composite electrodes were prepared by dealloying and hydrothermal synthesis. The pore size distribution, phase and microstructure of the electrode were characterized by N2 adsorption-desorption test, XRD, SEM, TEM. In 1 mol·L-1 NaOH solution, the electrocatalytic properties toward hydrogen evolution reaction of the electrode was evaluated using linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS) and constant current electrolysis method. As a result, when the current density was 50 mA·cm-2, the nano-porous Ni3S2/Ni composite electrode had a lower overpotential for hydrogen evolution reaction and higher electrocatalytic hydrogen evolution activity than the nano-porous Ni, while nano-porous Ni3S2/Ni composite electrode had lower apparent activation energy and electron transfer resistance, it further clarifies the special contribution of transition metal sulfides to the performance of electrocatalytic hydrogen evolution.
Keywords: de-alloying  hydrothermal synthesis  hydrogen evolution reaction  nano-porous Ni3S2/Ni composite
Hits:  1755
Download times:  681
ZHOU Qi,OUYANG De-Kai,WANG Fan,HE Jin-Shan,LI Xin-Bao.Nano-Porous Ni and Ni3S2/Ni Composite Electrodes: Preparation and Electrocatalytic Hydrogen Evolution Performance[J].Chinese Journal of Inorganic Chemistry,2021,37(3):412-420.
View Full Text  View/Add Comment  Download reader
Chinese Journal of Inorganic Chemistry