<p>Due to the growing need for renewable energy sources, attention has switched to producing green hydrogen by the water electrolysis, which provides a clean, carbon-free solution. However, challenges in development of the electrode have limited its wider adoption. Transition metal oxides and chalcogenides are getting more and more attention because of their exceptional redox properties, conductivity and steadiness even amid challenging circumstances. This study demonstrates use of transition metal tellurides as the active sites and the application of increased electrochemical water splitting supported by reduced graphene oxide. The hydrothermal technique was used to synthesize SnTe@rGO, which was then analyzed by SEM, XRD, BET and FTIR Electrochemical experiments such as double-layer capacitance, linear sweep voltammetry and cyclic voltammetry were used to illustrate the effective evolutionary processes such as HER/OER of content in 1 MKOH. At a low current density of 10&#xa0;mA cm <sup>−2</sup>, SnTe@rGO showed low overpotential of 46&#xa0;mV for HER and 180&#xa0;mV for OER together with low Tafel slopes and minimal charge-transfer resistance, indicating its potential as a good catalyst for water splitting.</p> Graphical abstract <p></p>

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Hydrothermal synthesis of the SnTe@rGO for efficient water splitting in an alkaline medium and its performance evaluation

  • Faiqa Noreen,
  • Ali Junaid,
  • Khadija tul-Kubra,
  • Javeria Zahid,
  • Asma A. Alothman,
  • Muhammad Shuaib Khan

摘要

Due to the growing need for renewable energy sources, attention has switched to producing green hydrogen by the water electrolysis, which provides a clean, carbon-free solution. However, challenges in development of the electrode have limited its wider adoption. Transition metal oxides and chalcogenides are getting more and more attention because of their exceptional redox properties, conductivity and steadiness even amid challenging circumstances. This study demonstrates use of transition metal tellurides as the active sites and the application of increased electrochemical water splitting supported by reduced graphene oxide. The hydrothermal technique was used to synthesize SnTe@rGO, which was then analyzed by SEM, XRD, BET and FTIR Electrochemical experiments such as double-layer capacitance, linear sweep voltammetry and cyclic voltammetry were used to illustrate the effective evolutionary processes such as HER/OER of content in 1 MKOH. At a low current density of 10 mA cm −2, SnTe@rGO showed low overpotential of 46 mV for HER and 180 mV for OER together with low Tafel slopes and minimal charge-transfer resistance, indicating its potential as a good catalyst for water splitting.

Graphical abstract