The design and construction of 3D rose-petal-shaped MoS2 hierarchical nanostructures with structure-sensitive properties
The design and construction of 3D rose-petal-shaped MoS2 hierarchical nanostructures with structure-sensitive properties
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具有结构敏感特性的3D玫瑰花瓣状MoS2分级纳米结构的设计与构建
DOI:
10.1039/c4ta01004c
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发表时间:
2014-05
影响因子:
11.9
通讯作者:
Yao JuMing
中科院分区:
文献类型:
--
作者:
Zhu Han;Du MingLiang;Zhang Ming;Zou MeiLing;Yang TingTing;Fua YaQin;Yao JuMing
Rose-petal-shaped MoS2 hierarchical nanostructures were designed and constructed using carbonized electrospun nanofibers as a template, which exhibit highly structure-sensitive properties for the hydrogen evolution reaction (HER). We first synthesized carbon nanofiber (CNF) mats by combining the electrospinning and carbonization processes, and then the CNF mats were used as a substrate for the direct growth of MoS2 nanocrystals via the CVD method. By controlling the MoS2 morphology at the nanoscale, we constructed evolutions in the structures and preferentially exposed more catalytically active edge sites, enabling improved performance for electrochemical catalytic activity. Because of their highly exposed edges and excellent chemical and electrical coupling to the underlying CNFs, MoS2–CNF fiber mats exhibited excellent HER activity with a small overpotential of ∼0.12 V and a small Tafel slope of 45 mV per decade. Our findings provide a feasible way to design and engineer advanced nanostructures for catalysis, electronic devices, and other potential applications.
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I. Zafiropoulou;M. Katsiotis;N. Boukos;M. Karakassides;S. Stephen;V. Tzitzios;M. Fardis;R. Vladea;S. Alhassan;G. Papavassiliou
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通讯作者:
Chorkendorff, Ib
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10.8
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通讯作者:
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