增强无金属 SiC/g-C3N5 异质结构的电催化 HER 性能

IF 3.4 3区化学 Q2 CHEMISTRY, PHYSICAL

Catalysis Communications Pub Date : 2024-02-01 DOI:10.1016/j.catcom.2024.106882

Sethumathavan Vadivel , P. Sujita , Bappi Paul , B. Vidhya , Anju Sebastian , R. Selvarajan

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引用次数: 0

摘要

在此，我们制备了 SiC 和 g-C3N5 的复合材料，形成了一种不含惰性金属的异质结构 SiC/g-C3N5，用于电化学 HER 活性。研究人员采用了多种表征技术，如 XRD、UV- DRS、FT-IR、FE-SEM、HR-TEM 和 XPS 测量等，对其结构特性进行了研究。在 10 mA/cm2 的条件下，SiC/g-C3N5 异质结构的 HER 反应的过电位为 81 mV/dec vs RHE，远高于原始 SiC 材料的过电位。这项工作为合理设计基于 g-C3N5 的电催化剂提供了有效方法，有助于未来无金属电催化剂的发展。

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Enhanced electrocatalytic HER performances of metal free SiC/g-C3N5 heterostructures

Here in, we have fabricated a composite of SiC and g-C₃N₅ to form a noble-metal-free heterostructure as SiC/g-C₃N₅ for electrochemical HER activity. More than a few characterization techniques were investigated for their structural properties, such as the XRD, UV- DRS, FT-IR, FE-SEM, HR-TEM, and XPS measurements respectively. The HER reaction of SiC/g-C₃N₅ heterostructure with an overpotential obtained from Tafel slope of 81 mV/dec vs RHE at 10 mA/cm² which is much better than that of the pristine SiC material. This work entitles that the effective approach for the rational design of g-C₃N₅-based electrocatalysts, for future developments in metal-free electrocatalysts.

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来源期刊

Catalysis Communications 化学-物理化学

CiteScore

6.20

自引率

2.70%

发文量

183

审稿时长

46 days

期刊介绍： Catalysis Communications aims to provide rapid publication of significant, novel, and timely research results homogeneous, heterogeneous, and enzymatic catalysis.