1T@2H-MoSe2 nanosheets directly arrayed on Ti plate: An efficient electrocatalytic electrode for hydrogen evolution reaction
1T@2H-MoSe2 nanosheets directly arrayed on Ti plate: An efficient electrocatalytic electrode for hydrogen evolution reaction
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直接排列在钛板上的1T@2H-MoSe2纳米片:一种用于析氢反应的高效电催化电极
DOI:
10.1007/s12274-018-2040-x
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发表时间:
2018-03
期刊:
影响因子:
9.9
通讯作者:
Zhang Jun
中科院分区:
文献类型:
--
作者:
Zhang Jingtong;Chen Yalan;Liu Ming;Du Kun;Zhou Yan;Li Yanpeng;Wang Zhaojie;Zhang Jun
Few-layered MoSe2 nanosheets with mixed 1T/2H phase were successfully arrayed on a Ti substrate (forming 1T@2H-MoSe2/Ti) through a facile one-step solvothermal process. After testing different synthesis conditions, it was found that the optimal process involves a temperature of 200 °C and a reaction time of 12 h. Structural characterizations reveal that the morphology of 1T@2H-MoSe2 consists of edge-terminated nanosheets with one to five layers, composed of a mixed 1T/2H phase dominated by the 1T one. The 1T@2H-MoSe2/Ti electrode shows excellent HER catalytic activity, with a small onset potential (−120 mV vs. reversible hydrogen electrode, RHE) and an electrode potential of only −133 mV (vs. RHE) to achieve a current density of 20 mA·cm−2. This excellent electrocatalytic activity is due to the synergistic effects of 1T metallic phase, few-layered nanosheet morphology, and direct growth of 1T@2H-MoSe2on the Ti substrate. In addition, the 1T@2H-MoSe2/Ti electrode shows excellent stability towards long-term electrolysis. This is due to the long-term stability of the valence states of Mo and Se, as shown by post-electrolysis X-ray photoelectron spectroscopy analysis.
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影响因子:
2.5
作者:
Shi Wenwu;Wang Zhiguo;Fu Yong Qing
通讯作者:
Fu Yong Qing
DOI:
10.1088/1361-6463/aa85c9
发表时间:
2017-09
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
作者:
Shi Wenwu;Wang Zhiguo;Fu Yong Qing
通讯作者:
Fu Yong Qing
影响因子:
15
作者:
Popczun, Eric J.;McKone, James R.;Schaak, Raymond E.
通讯作者:
Schaak, Raymond E.
影响因子:
29.4
作者:
Deng, Shengjue;Zhong, Yu;Tu, Jiangping
通讯作者:
Tu, Jiangping
影响因子:
3.7
作者:
Li-na Wang;Xia Zhang;Ying Ma;Min Yang;Yanxing Qi
通讯作者:
Li-na Wang;Xia Zhang;Ying Ma;Min Yang;Yanxing Qi