Flower-like nanostructured V3S4 grown on three-dimensional porous graphene aerogel for efficient oxygen reduction reaction
Flower-like nanostructured V3S4 grown on three-dimensional porous graphene aerogel for efficient oxygen reduction reaction
复制标题
在三维多孔石墨烯气凝胶上生长的花状纳米结构 V3S4 可实现高效的氧还原反应
DOI：
10.1016/j.apsusc.2018.04.163
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发表时间：
2018-08
影响因子：
6.7
通讯作者：
Liang Zhan
中科院分区：
文献类型：
--
作者：
Zhou Xu;Liang Zhan
A novel flower-like nanostructured V3S4/graphene aerogel (V3S4-GA) hybrid is successfully synthesized as an efficient electrocatalyst for oxygen reduction reaction (ORR). The flower-like V3S4homogeneously grows on the surface of graphene, which provides a large contact surface area with electrolyte and abundant active sites. The strong covalency of VsbndS bond and the abundant unoccupied d-orbits of vanadium atoms are propitious to the exchange of the adsorbed oxygen molecular. The porous GA exists an excellent continuous electric conductive network for electron transportation and enough nanospace for O2adsorption and reaction. Such unique nanostructures offer the synthesized V3S4/GA hybrid an excellent ORR catalytic performance, including a high electron transfer per oxygen molecule of 3.97, a high kinetic current density of 9.5 mA cm−2at −0.5 V vs. Ag/AgCl, a high methanol resistance and a good durability.
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