Spontaneously Splitting Copper Nanowires into Quantum Dots on Graphdiyne for Suppressing Lithium Dendrites

Spontaneously Splitting Copper Nanowires into Quantum Dots on Graphdiyne for Suppressing Lithium Dendrites
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在石墨炔上将铜纳米线自发分裂成量子点以抑制锂枝晶

DOI:
10.1002/adma.202004379
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发表时间:
2020-11
期刊:
影响因子:
29.4
通讯作者:
Li Yuliang
Li Yuliang
中科院分区:
材料科学1区
文献类型:
--
作者:
Zuo Zicheng;He Feng;Wang Fan;Li Liang;Li Yuliang

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石墨二炔作为一种新兴的碳同素异形体,其可控生长是探索其独特科学性质和应用的重要手段。在这项工作中,铜(Cu)的晶体结构的石墨二炔的生长的影响进行了系统的研究。发现晶界是反应活性的来源。具有许多晶界的多晶Cu纳米线被生长的石墨炔自发分裂成Cu量子点(约3nm)。这些Cu量子点均匀地分散在石墨二炔上,并且它们阻止石墨二炔的长程有序生长。这些原位负载在石墨二炔上的Cu量子点在抑制锂金属电池中的锂枝晶生长方面表现出高效率。基于这一有趣的发现,可以大规模制备锚定在全碳石墨二炔上的Cu量子点,并且可以实现Cu量子点在电化学领域的独特应用。
As an emerging carbon allotrope, the controllable growth of graphdiyne has been an important means to explore its unique scientific properties and applications. In this work, the effect of the crystal structure of copper (Cu) on the growth of graphdiyne is systematically studied. It is found that the crystal boundaries are the origin of the reaction activity. The polycrystalline Cu nanowire with many crystal boundaries is spontaneously split into Cu quantum dots (about 3 nm) by the grown graphdiyne. These Cu quantum dots are uniformly dispersed on the graphdiyne, and they block the long‐range ordered growth of the graphdiyne. These Cu quantum dots in situ supported on graphdiyne demonstrate high efficiency in inhibiting the growth of lithium dendrites in lithium metal batteries. Based on this interesting finding, the Cu quantum dots anchored on the all‐carbon graphdiyne can be prepared on a large scale, and unique applications of Cu quantum dots in electrochemical fields can be implemented.
DOI: 10.1002/adma.201806272
发表时间: 2018-12
期刊: Advanced Materials
影响因子: 29.4
作者:
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DOI: 10.1126/sciadv.aat6378
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期刊: Science advances
影响因子: 13.6
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