Scholarlink

<p>Rapid recombination of photogenerated carriers and weak driving forces to inject hot electrons are critical bottlenecks in solar-driven ammonia borane hydrolysis. Herein, aided by machine learning, plasmon polarization-induced multi-field coupling is developed to enhance ammonia borane hydrolytic activity. The reconstructed surface unsaturated Mo<sup>δ+</sup> active sites exhibit well activity and high stability over 100 hours in AB hydrolysis, which deliver a turnover frequency up to 5806 min<sup>-1</sup>, representing competitiveness compared to non-noble and noble-metal based catalysts ever reported. It is verified that the polarized electric field facilitates carrier separation through incorporating polarization components (O<sub>v</sub> and -OH), thereby promoting electron accumulation around Mo<sup>δ+</sup> active sites. Meanwhile, the local electric field enables highly delocalized hot electrons through plasmon oscillation, thus lowering the reaction barrier between Mo<sup>δ+</sup> and AB. In this work, the hot electrons are efficiently channeled via an enhanced feedback pathway, facilitating their transfer into B-H antibonding orbitals toward boosted AB hydrolysis.</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

Multi-field coupling enhanced plasmonic Moδ+ active site to efficiently hydrolyze ammonia borane

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月29日

查看全文
  • Pengcheng Li,
  • Nengrong Tu,
  • Yang Yang,
  • Junxiang Li,
  • Huilin Hou,
  • Dongjiang Yang,
  • Weiyou Yang

摘要

Rapid recombination of photogenerated carriers and weak driving forces to inject hot electrons are critical bottlenecks in solar-driven ammonia borane hydrolysis. Herein, aided by machine learning, plasmon polarization-induced multi-field coupling is developed to enhance ammonia borane hydrolytic activity. The reconstructed surface unsaturated Moδ+ active sites exhibit well activity and high stability over 100 hours in AB hydrolysis, which deliver a turnover frequency up to 5806 min-1, representing competitiveness compared to non-noble and noble-metal based catalysts ever reported. It is verified that the polarized electric field facilitates carrier separation through incorporating polarization components (Ov and -OH), thereby promoting electron accumulation around Moδ+ active sites. Meanwhile, the local electric field enables highly delocalized hot electrons through plasmon oscillation, thus lowering the reaction barrier between Moδ+ and AB. In this work, the hot electrons are efficiently channeled via an enhanced feedback pathway, facilitating their transfer into B-H antibonding orbitals toward boosted AB hydrolysis.