Tobacco stem-derived porous carbon-supported Ru catalysts for efficient electrochemical hydrogen evolution

期刊论文
发表日期：

2024年10月26日

查看全文

Wei Ding,
Kai Shen,
Fanda Pan,
Xuefeng Gao,
Mingxing Li,
Chen Xia,
Wenxin Xia,
Dian Guo,
Momo Wang,
Lihui Zhou,
Hu Fan,
Sheng Dai

摘要

Abstract

Utilization of waste tobacco stems holds significant environmental and economic value. This study developed a hierarchical porous carbon matrix from waste tobacco stems via pyrolysis with FeCl₃ activation. The resulting tobacco stem-derived porous carbon (TPC)-anchored Ru nanoparticles, demonstrating significant activity in the hydrogen evolution reaction (HER) in acid and alkaline electrolytes. The optimal catalyst, Ru/TPC-900, produced at 900℃ with 1.5-wt% Ru, achieved an overpotential of 24 mV (at 10 mA/cm²), and a Tafel slope of 48 mV/dec in 1.0-M KOH, outperforming conventional Ru/C catalysts.

Graphical abstract