Scholarlink

<p>Organic molecular oxidation reactions are ideally regarded to be energy-saving alternative to replace oxygen evolution reaction (OER) for lowering the oxidation overpotential during green hydrogen production. However, the vast scale of hydrogen production is far beyond the fine chemical processes, inevitably resulting in substantial oxygen release. Here, we propose another type of coupled oxidation reactions to stably accommodate with high-current density hydrogen production, accompanied by easy separation. As taking benzylamine oxidation reaction (BOR) as a probe without other side reactions, we propose a bubble-assisted strategy by activating OER and utilizing the generated oxygen bubbles to timely take the insoluble product benzonitrile away from electrode surface, and effectively overcome the electrode poisoning issue. The assembled prototype water electrolyzer achieves a typical current density of 200 mA/cm<sup>2</sup> and faradaic efficiency of 55% at 1.65 V for over 40 hours, diversify high-value chemical outputs. Such hybrid electrolysis within bubble-assisted strategy endows system flexibility for next-generation integrated electrochemical energy platforms.</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

Bubble-assisted cleaning for primary amine oxidation towards ampere-level current densities

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年6月26日

查看全文
  • Xichang Lin,
  • Bo Li,
  • Yisong Li,
  • Anuj Kumar,
  • Bin Ding,
  • Jiazhong Wu,
  • Liang Luo,
  • Xiaoming Sun

摘要

Organic molecular oxidation reactions are ideally regarded to be energy-saving alternative to replace oxygen evolution reaction (OER) for lowering the oxidation overpotential during green hydrogen production. However, the vast scale of hydrogen production is far beyond the fine chemical processes, inevitably resulting in substantial oxygen release. Here, we propose another type of coupled oxidation reactions to stably accommodate with high-current density hydrogen production, accompanied by easy separation. As taking benzylamine oxidation reaction (BOR) as a probe without other side reactions, we propose a bubble-assisted strategy by activating OER and utilizing the generated oxygen bubbles to timely take the insoluble product benzonitrile away from electrode surface, and effectively overcome the electrode poisoning issue. The assembled prototype water electrolyzer achieves a typical current density of 200 mA/cm2 and faradaic efficiency of 55% at 1.65 V for over 40 hours, diversify high-value chemical outputs. Such hybrid electrolysis within bubble-assisted strategy endows system flexibility for next-generation integrated electrochemical energy platforms.