Core-shell MoO3-MoS2 Nanowires for Hydrogen Evolution: A Functional Design for Electrocatalytic Materials
Core-shell MoO3-MoS2 Nanowires for Hydrogen Evolution: A Functional Design for Electrocatalytic Materials
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DOI：
10.1021/nl2020476
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发表时间：
2011-10-01
期刊：
影响因子：
10.8
通讯作者：
Jaramillo, Thomas F.
中科院分区：
文献类型：
--
作者：
Chen, Zhebo;Cummins, Dustin;Jaramillo, Thomas F.
我们合成了垂直取向的核-壳纳米线，具有类似于20-50纳米的亚化学计量MoO 3核和类似于2-5纳米的共形MoS 2壳。通过低温硫化产生的核-壳结构旨在利用每种组分材料的最佳性能，同时减轻其缺陷。亚化学计量的MoO 3核提供了高纵横比的基础，并使电荷传输变得容易，而保形的MoS 2壳提供了优异的催化活性和对强酸腐蚀的保护。
We synthesize vertically oriented core-shell nanowires with substoichiometric MoO3 cores of similar to 20-50 nm and conformal MoS2 shells of similar to 2-5 nm. The core-shell architecture, produced by low-temperature sulfidization, is designed to utilize the best properties of each component material while mitigating their deficiencies. The substoichiometric MoO3 core provides a high aspect ratio foundation and enables facile charge transport, while the conformal MoS2 shell provides excellent catalytic activity and protection against corrosion in strong acids.