Recent Advances in the Synthesis and Applications of Ultrasmall Bimetallic Nanoclusters
Recent Advances in the Synthesis and Applications of Ultrasmall Bimetallic Nanoclusters
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DOI：
10.1002/ppsc.201400212
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发表时间：
2015-06
影响因子：
2.7
通讯作者：
Xun Yuan;Xinyue Dou;Kaiyuan Zheng;Jianping Xie
中科院分区：
文献类型：
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作者：
Xun Yuan;Xinyue Dou;Kaiyuan Zheng;Jianping Xie
超小纳米团簇（或简称双MNC）最近已经作为一类新的多功能纳米颗粒出现，这是由于它们的超小尺寸（通常低于2nm）、独特的分子样性质（例如，量子化充电和强发光）、受控的簇组成（在原子水平）、协同的物理化学性质和丰富的表面化学。这些有趣的性质促使簇社区开发高效的方法来合成高质量的bi-MNCs，这也可以从报道的bi-MNCs合成方案的量子增加中看出。近年来，在高质量bi-MNCs的高效合成方法的开发方面取得了进展，这也促进了bi-MNCs在催化、传感器和生物医学等不同领域的应用探索。这篇综述文章首先综述了目前在合成bi-MNCs方面的进展，特别是对于那些具有良好控制簇大小和组成的NC，然后详细讨论了bi-MNCs的一些独特的物理化学性质。bi-MNCs的有趣特性使其成为催化，传感器和生物医学应用探索的理想平台，这些将在第二部分中讨论。在最后一节中，简要展望了功能性双-MNCs的未来发展，特别关注双-MNCs的控制合成和实际应用。
Ultrasmall bimetallic nanoclusters (or bi‐MNCs for short) have recently emerged as a new class of multi‐functional nanoparticles due to their ultrasmall size (typically below 2 nm), unique molecular‐like properties (e.g., quantized charging and strong luminescence), controlled cluster compositions (at the atomic level), synergistic physicochemical properties, and rich surface chemistry. Such intriguing properties have motivated the cluster community to develop efficient methods for the synthesis of high‐quality bi‐MNCs, which can also be seen from the quantum increase of reported synthetic protocols for bi‐MNCs. Recent advances in the development of efficient synthesis methods for high‐quality bi‐MNCs also facilitate the application explorations of bi‐MNCs in diverse fields like catalysis, sensors, and biomedicine. This Review article first surveys current progress in the synthesis of bi‐MNCs, especially for those NCs with good control of cluster size and composition, followed by a detailed discussion on some unique physicochemical properties of bi‐MNCs. The intriguing properties of bi‐MNCs have made them ideal platforms for application explorations in catalysis, sensors, and biomedicine, which are discussed in the second section. In the last section, a brief outlook on future developments of functional bi‐MNCs is presented, with a particular focus on the controlled synthesis and practical applications of bi‐MNCs.