氮化碳石墨基纳米复合材料储能与转换研究进展。

IF 2.8 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Shuxian Tang, Yiwen Xing, Yan Wang, Gang Wei
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引用次数: 0

摘要

石墨氮化碳(g-C3N4)作为一种很有前途的非金属半导体光催化剂,由于其光化学稳定性、良好的电子性能和高效的光吸收而受到广泛关注。然而,它的实际应用受到诸如低比表面积、光生电荷载流子的快速重组、差的电导率和光响应范围的限制等限制。本文综述了近年来g-C3N4及其纳米复合材料在合成、改性和应用方面的研究进展,重点探讨了这些挑战。增强g-C3N4的关键策略包括各种合成方法(溶剂热、微波辅助、溶胶-凝胶和气相沉积)、掺杂、缺陷工程、异质结形成和表面修饰。它们在能量存储和转化应用方面的潜力,包括光催化制氢、二氧化碳还原、固氮和电化学储能。综上所述,本文强调了结构和形态修饰对提高g- c3n4基纳米复合材料的光电化学性能的重要性,为未来的开发和优化提供了见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Recent advances in graphitic carbon nitride-based nanocomposites for energy storage and conversion applications.

Graphitic carbon nitride (g-C3N4) has gained significant attention as a promising nonmetallic semiconductor photocatalyst due to its photochemical stability, favorable electronic properties, and efficient light absorption. Nevertheless, its practical applications are hindered by limitations such as low specific surface area, rapid recombination of photogenerated charge carriers, poor electrical conductivity, and restricted photo-response ranges. This review explores recent advancements in the synthesis, modification and application of g-C3N4and its nanocomposites with a focus on addressing these challenges. Key strategies for enhancing g-C3N4include various synthesis methods (solvothermal, microwave-assisted, sol-gel, and vapor deposition), doping, defect engineering, heterojunction formation, and surface modifications. Their potential in energy storage and conversion applications, including photocatalytic hydrogen production, carbon dioxide reduction, nitrogen fixation, and electrochemical energy storage are also highlighted. Overall, the review underscores the importance of structural and morphological modifications in improving the photoelectrochemical performance of g-C3N4-based nanocomposites, providing insights for future development and optimization.

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来源期刊
Nanotechnology
Nanotechnology 工程技术-材料科学:综合
CiteScore
7.10
自引率
5.70%
发文量
820
审稿时长
2.5 months
期刊介绍: The journal aims to publish papers at the forefront of nanoscale science and technology and especially those of an interdisciplinary nature. Here, nanotechnology is taken to include the ability to individually address, control, and modify structures, materials and devices with nanometre precision, and the synthesis of such structures into systems of micro- and macroscopic dimensions such as MEMS based devices. It encompasses the understanding of the fundamental physics, chemistry, biology and technology of nanometre-scale objects and how such objects can be used in the areas of computation, sensors, nanostructured materials and nano-biotechnology.
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