期刊
SMALL
卷 14, 期 48, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/smll.201803015
关键词
electrocatalyst; nanosheet; Ni3Ge2O5(OH)(4); oxygen evolution reaction; serpentine
类别
资金
- National Natural Science Foundation of China [51402364]
- China Postdoctoral Science Foundation [2016M592443]
Layered serpentine Ni3Ge2O5(OH)(4) is compositionally active and structurally favorable for adsorption and diffusion of reactants in oxygen evolution reactions (OER). However, one of the major problems for these materials is limited active sites and low efficiency for OER. In this regard, a new catalyst consisting of layered serpentine Ni3Ge2O5(OH)(4) nanosheets is introduced via a controlled one-step synthetic process where the morphology, size, and layers are well tailored. The theoretical calculations indicate that decreased layers and increased exposure of (100) facets in serpentine Ni3Ge2O5(OH)(4) lead to much lower Gibbs free energy in adsorption of reactive intermediates. Experimentally, it is found that the reduction in number of layers with minimized particle size exhibits plenty of highly surface-active sites of (100) facets and demonstrates a much enhanced performance in OER than the corresponding multilayered nanosheets. Such a strategy of tailoring active sites of serpentine Ni3Ge2O5(OH)(4) nanosheets offers an effective method to design highly efficient electrocatalysts.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据