Integrated Quasiplane Heteronanostructures of MoSe2/Bi2Se3 Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance
Integrated Quasiplane Heteronanostructures of MoSe2/Bi2Se3 Hexagonal Nanosheets: Synergetic Electrocatalytic Water Splitting and Enhanced Supercapacitor Performance
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MoSe2/Bi2Se3六方纳米片的集成准平面异质纳米结构：协同电催化水分解和增强的超级电容器性能
DOI：
10.1002/adfm.201703864
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发表时间：
2017-11
影响因子：
19
通讯作者：
Yang Qing
中科院分区：
文献类型：
--
作者：
Yang Jing;Wang Chunde;Ju Huanxin;Sun Yuan;Xing Shiqi;Zhu Junfa;Yang Qing
MoSe2作为一种典型的过渡金属二硫化物，在储能和催化方面具有很大的潜力，但其导电性较差，在很大程度上限制了其性能。Bi2Se3纳米片是一种拓扑绝缘体，其边界边缘无间隙，表面具有金属性质。根据互补原理，通过热注入胶体体系，设计了一种具有美观杂化结构的MoSe2/Bi2Se3杂化材料的集成准平面结构。有趣的是，异质纳米结构通常是由单层Bi2Se3六边形纳米板组成的，在整个表面均匀地包裹着小的超薄层次化MoSe2纳米片。X射线光电子能谱研究表明，从Bi2Se3到MoSe2有明显的电子转移，这有助于提高杂化电极的导电性。特别是，来自紫外光电子能谱研究的能量带图表明，Bi2Se3比MoSe2具有更高的EF和更小的Φ，进一步证实了Bi2Se3和MoSe2之间的电子调制，其中Bi2Se3作为提供电子的优良衬底并作为高速率跃迁的通道。MoSe2/Bi2Se3杂化材料具有低起始电位、小Tafel斜率、高电流密度和长期稳定性，表明具有优异的析氢反应活性，而高比电容、令人满意的倍率能力和快速的离子扩散表明具有增强的超级电容器性能。
MoSe2 as a typical transition metal dichalcogenide holds great potential for energy storage and catalysis but its performance is largely limited by its poor conductivity. Bi2Se3 nanosheets, a kind of topological insulators, possess gapless edges on boundary and show metallic character on surface. According to the principle of complementary, a novel integrated quasiplane structure of MoSe2/Bi2Se3 hybrids is designed with artistic heteronanostructures via a hot injection in colloidal system. Interestingly, the heteronanostructures are typically constituted by single‐layer Bi2Se3 hexagonal nanoplates evenly enclosed by small ultrathin hierarchical MoSe2 nanosheets on the whole surfaces. X‐ray photoelectron spectroscopy investigations suggest obvious electron transfer from Bi2Se3 to MoSe2, which can help to enhance the conductivity of the hybrid electrode. Especially, schematic energy band diagrams derived from ultraviolet photoelectron spectroscopy studies indicate that Bi2Se3 has higher EF and smaller Φ than MoSe2, further confirming the electronic modulation between Bi2Se3 and MoSe2, where Bi2Se3 serves as an excellent substrate to provide electrons and acts as channels for high‐rate transition. The MoSe2/Bi2Se3 hybrids demonstrating a low onset potential, small Tafel slope, high current density, and long‐term stability suggest excellent hydrogen evolution reaction activity, whereas a high specific capacitance, satisfactory rate capability, and rapid ions diffusion indicate enhanced supercapacitor performance.
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影响因子：
9.9
作者：
Yuxi Xu;Xiaoqing Huang;Zhaoyang Lin;Xing Zhong;Yu Huang;X. Duan
通讯作者：
Yuxi Xu;Xiaoqing Huang;Zhaoyang Lin;Xing Zhong;Yu Huang;X. Duan
定向构建垂直掺氮1T-2H MoSe2/石墨烯壳/核纳米片阵列以实现高效析氢反应
影响因子：
29.4
作者：
Deng, Shengjue;Zhong, Yu;Tu, Jiangping
通讯作者：
Tu, Jiangping
影响因子：
15
作者：
Li, Yanguang;Wang, Hailiang;Dai, Hongjie
通讯作者：
Dai, Hongjie
影响因子：
8.6
作者：
Lee, Jeong Woo;Hall, Anthony S.;Mallouk, Thomas E.
通讯作者：
Mallouk, Thomas E.
影响因子：
10.8
作者：
Yuxi Xu;Chih-Yen Chen;Zipeng Zhao;Zhaoyang Lin;Chai-Fen Lee;Xu Xu-Xu;Chen Wang;Yu Huang;M. I. Shaki
通讯作者：
Yuxi Xu;Chih-Yen Chen;Zipeng Zhao;Zhaoyang Lin;Chai-Fen Lee;Xu Xu-Xu;Chen Wang;Yu Huang;M. I. Shaki