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Shenghua Ye, Gaoren Li
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 473-480 doi: 10.1007/s11705-018-1724-9
The polypyrrole(PPy)@NiCo hybrid nanotube arrays have been successfully fabricated as a high performance electrocatalyst for hydrogen evolution reaction (HER) in alkaline solution. The strong electronic interactions between PPy and NiCo alloy are confirmed by X-ray photoelectron spectroscopy and Raman spectra. Because these interations can remarkably reduce the apparent activation energy (Ea) for HER and enhance the turnover frequency of catalysts, the electrocatalytic performance of PPy@NiCo hybrid nanotube arrays are significantly improved. The electrochemical tests show that the PPy@NiCo hybrid catalysts exhibit a low overpotential of ~186 mV at 10.0 mA·cm−2 and a small tafel slope of 88.6 mV·deg−1 for HER in the alkaline solution. The PPy@NiCo hybrid nanotubes also exhibit high catalytic activity and high stability for HER.
关键词: NiCo alloy polypyrrole hybrid nanotube electrocatalyst hydrogen evolution reaction
Erratum to: Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen
Shenghua Ye, Gaoren Li
《化学科学与工程前沿(英文)》 2019年 第13卷 第4期 页码 845-845 doi: 10.1007/s11705-019-1879-z
《化学科学与工程前沿(英文)》 2023年 第17卷 第4期 页码 373-386 doi: 10.1007/s11705-022-2223-6
关键词: carbon cloth NiCo2O4 nanowires core−shell structure quinone-rich electric double layer capacitor
《化学科学与工程前沿(英文)》 2022年 第16卷 第8期 页码 1259-1267 doi: 10.1007/s11705-021-2132-0
关键词: NiCo array electrode grain boundary stability supercapacitor
《化学科学与工程前沿(英文)》 2023年 第17卷 第6期 页码 691-703 doi: 10.1007/s11705-022-2268-6
Yuyao Ji, Min Ma, Xuqiang Ji, Xiaoli Xiong, Xuping Sun
《化学科学与工程前沿(英文)》 2018年 第12卷 第3期 页码 467-472 doi: 10.1007/s11705-018-1717-8
It is highly attractive but still remains a great challenge to develop an efficient electrocatalyst for oxygen evolution reaction under nearly neutral conditions. In this work, we report the transformation of Ni3S2 nanowire array on nickel foam into the amorphous nickel carbonate nanowire array on nickel foam (NiCO3/NF). The resulting NiCO3/NF shows high electrocatalytic activity towards water oxidation and affords current density of 50 mA·cm−2 at overpotential of 395 mV in 1.0 mol·L−1 KHCO3. Moreover, this NiCO3/NF is also durable with a long-term electrochemical durability of 60 h. This catalyst electrode achieves a high turnover frequency of 0.21 mol O2·s−1 at the overpotential of 500 mV.
关键词: water oxidation NiCO3/NF nearly neutral conditions superior activity electocatalyst
标题 作者 时间 类型 操作
Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen evolution reaction
Shenghua Ye, Gaoren Li
期刊论文
Erratum to: Polypyrrole@NiCo hybrid nanotube arrays as high performance electrocatalyst for hydrogen
Shenghua Ye, Gaoren Li
期刊论文
NiCo2O4@quinone-rich N–C core–shell nanowires as composite electrode for electric double layer capacitor
期刊论文
Engineering the grain boundary: a promising strategy to configure NiCoPO/NiCoP nanowire arrays for ultra-stable supercapacitor
期刊论文
Construction of NiCoO nanoflake arrays on cellulose-derived carbon nanofibers as a freestanding electrode for high-performance supercapacitors
期刊论文