Electrochemical analysis of interface adsorption phenomena on three-dimensional nano-nickel electrode deposited on silicon microchannel plate

详细信息    查看全文

• 作者：Shaohui Xu^a ; ^b ; ^{shxu@ee.ecnu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Yiping Zhu^a ; Dayuan Xiong^a ; Lianwei Wang^a ; Pingxiong Yang^a ; Paul K. Chu^b
• 关键词：Three-dimensional nano-nickel electrode ; interface adsorption phenomena ; Electrochemical analysis
• 刊名：Electrochimica Acta
• 出版年：2016
• 出版时间：10 March 2016
• 年：2016
• 卷：194
• 期：Complete
• 页码：253-262
• 全文大小：1497 K

文摘

The electrochemical double-layer capacitance and adsorption-desorption phenomena of the three-dimensional (3D) nano-nickel electrode on silicon microchannel plate is investigated electrochemically in the neutral aqueous solution. The electrochemical double-layer capacitance of the 3D electrode increases due to the porous structure of the nickel electrode and 3D architecture of the silicon microchannel plate and the charging process can be completed in a shorter time due to the special 3D architecture. The specific monolayer adsorption, electrochemical double-layer adsorption, and diffusion-limited electrochemical processes can be identified clearly on account of the larger surface area and described by an exponential relationship. Different adsorption quantities are also observed from cations and anions on account of the small channels in the 3D nano-nickel electrode.