用于光催化应用的原子精确金属纳米团簇的最新进展。

IF 8 2区 材料科学 Q1 CHEMISTRY, PHYSICAL
Yuanxin Du, Chengqi Li, Yali Dai, Haijiao Yin and Manzhou Zhu
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引用次数: 0

摘要

光催化技术是一种广受认可的绿色可持续技术,它可以利用取之不尽、用之不竭的太阳能进行化学反应,为缓解环境问题和能源危机提供了机会。具有宽光谱响应和快速电荷转移能力的光催化剂是实现高效光催化活性的关键。原子精密金属纳米团簇(NCs)是一种新兴的原子级材料,因其超小尺寸、独特的原子堆叠、丰富的表面活性位点和量子约束效应而备受关注。特别是,分子般的离散电子能级赋予了它们小带隙半导体行为,从而允许光激发,以产生电子和空穴参与光氧化反应。此外,金属 NC 在宽光谱紫外-近红外区域表现出很强的光收集能力,其光吸收性的多样性可通过成分和结构进行精确调节。这些优点使金属 NC 成为光催化的理想候选材料。本综述总结了光催化应用中原子精度金属 NC 的最新进展,包括光催化水分离、CO2 还原、有机物转化、光电催化反应、N2 固定和 H2O2 生成。此外,还重点介绍了提高金属 NC 的光稳定性、电荷转移和分离效率的策略。最后,展望了基于 NCs 的光催化剂所面临的挑战和机遇。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Recent progress in atomically precise metal nanoclusters for photocatalytic application

Recent progress in atomically precise metal nanoclusters for photocatalytic application

Recent progress in atomically precise metal nanoclusters for photocatalytic application

Photocatalysis is a widely recognized green and sustainable technology that can harness inexhaustible solar energy to carry out chemical reactions, offering the opportunity to mitigate environmental issues and the energy crisis. Photocatalysts with wide spectral response and rapid charge transfer capability are crucial for highly efficient photocatalytic activity. Atomically precise metal nanoclusters (NCs), an emerging atomic-level material, have attracted great interests owing to their ultrasmall size, unique atomic stacking, abundant surface active sites, and quantum confinement effect. In particular, the molecule-like discrete electronic energy level endows them with small-band-gap semiconductor behavior, which allows for photoexcitation in order to generate electrons and holes to participate in the photoredox reaction. In addition, metal NCs exhibit strong light-harvesting ability in the wide spectral UV–near IR region, and the diversity of optical absorption properties can be precisely regulated by the composition and structure. These merits make metal NCs ideal candidates for photocatalysis. In this review, the recent advances in atomically-precise metal NCs for photocatalytic application are summarized, including photocatalytic water splitting, CO2 reduction, organic transformation, photoelectrocatalytic reactions, N2 fixation and H2O2 production. In addition, the strategy for promoting photostability, charge transfer and separation efficiency of metal NCs is highlighted. Finally, a perspective on the challenges and opportunities for NCs-based photocatalysts is provided.

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来源期刊
Nanoscale Horizons
Nanoscale Horizons Materials Science-General Materials Science
CiteScore
16.30
自引率
1.00%
发文量
141
期刊介绍: Nanoscale Horizons stands out as a premier journal for publishing exceptionally high-quality and innovative nanoscience and nanotechnology. The emphasis lies on original research that introduces a new concept or a novel perspective (a conceptual advance), prioritizing this over reporting technological improvements. Nevertheless, outstanding articles showcasing truly groundbreaking developments, including record-breaking performance, may also find a place in the journal. Published work must be of substantial general interest to our broad and diverse readership across the nanoscience and nanotechnology community.
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