Scalable Synthesis of Tungsten Disulfide Nanosheets for Alkali-Acid Electrocatalytic Sulfion Recycling and H2 Generation,Angewandte Chemie International Edition

当前位置： X-MOL 学术 › Angew. Chem. Int. Ed. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Scalable Synthesis of Tungsten Disulfide Nanosheets for Alkali-Acid Electrocatalytic Sulfion Recycling and H2 Generation
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2021-07-21 , DOI: 10.1002/anie.202108992
Luocai Yi ₁ , Yaxin Ji _{1,

2} , Ping Shao ₁ , Junxiang Chen ₁ , Junwei Li _{1,

2} , Hao Li ₁ , Kai Chen ₁ , Xinxin Peng _{1,

3} , Zhenhai Wen ₁

Affiliation

WS₂ nanosheets hold great promise for a variety of applications yet faces a grand challenge in terms of large-scale synthesis. We report a reliable, scalable, and high-yield (>93 %) synthetic strategy to fabricate WS₂ nanosheets, which exhibit highly desirable electrocatalytic properties toward both the alkaline sulfion (S²⁻) oxidation reaction (SOR) and the acidic hydrogen evolution reaction (HER). The findings prompted us to develop a hybrid alkali-acid electrochemical cell with the WS₂ nanosheets as bifunctional electrode catalysts of alkaline anodic SOR and acidic cathodic HER. The proof-of-concept device holds promise for self-power or low-electricity electrolytic H₂ generation and environmentally friendly recycling of sulfion with enhanced electron utilization efficiency.

中文翻译：

用于碱-酸电催化硫磺回收和制氢的二硫化钨纳米片的可扩展合成

WS ₂纳米片具有广泛的应用前景，但在大规模合成方面面临巨大挑战。我们报告了一种可靠、可扩展和高产率 (>93%) 的合成策略来制造 WS ₂纳米片，其对碱性硫 (S ^2- ) 氧化反应 (SOR) 和酸性析氢反应均表现出非常理想的电催化性能反应 (HER)。这些发现促使我们开发了一种混合碱酸电化学电池，其中 WS ₂纳米片作为碱性阳极 SOR 和酸性阴极 HER 的双功能电极催化剂。概念验证装置有望实现自供电或低电量电解 H ₂ 提高电子利用效率的硫磺的产生和环保回收。

更新日期：2021-09-14

点击分享查看原文

点击收藏

阅读更多本刊新发论文本刊介绍/投稿指南