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sp3-like defect structure of hetero graphene-carbon nanotubes for promoting carrier transfer and stability
Journal of Energy Chemistry ( IF 13.1 ) Pub Date : 2020-09-19 , DOI: 10.1016/j.jechem.2020.09.020
Shan-Shan Fan , Ling Shen , Yuan Dong , Ge Tian , Si-Ming Wu , Gang-Gang Chang , Christoph Janiak , Ping Wei , Jin-Song Wu , Xiao-Yu Yang

Three-dimensional (3D) hybrid of nanocarbons is a very promising way to the high-performance design of electrocatalysis materials. However, sp3-like defect structure, a combination of high strength and conduction of graphene and carbon nanotubes (CNTs) is rarely reported. Herein, 3D neural-like hybrids of graphene (from reduced graphene oxide) and carbon nanotubes (CNTs) have been integrated via sp3-like defect structure by a hydrothermal approach. The sp3-like defect structure endows 3D nanocarbon hybrids with an enhanced carrier transfer, high structural stability, and electrocatalytic durability. The neural-like structure is shown to demonstrate a cascade effect of charges and significant performances regarding bio-electrocatalysis and lithium-sulfur energy storage. The concept and mechanism of “sp3-like defect structure” are proposed at an atomic/nanoscale to clarify the generation of rational structure as well as the cascade electron transfer.



中文翻译:

异质石墨烯-碳纳米管的sp 3状缺陷结构,可促进载流子的转移和稳定性

纳米碳的三维(3D)杂化是电催化材料高性能设计的非常有前途的方法。然而,很少报道sp 3样缺陷结构,高强度以及石墨烯和碳纳米管(CNT)的导电性的组合。在本文中,通过水热方法经由sp 3样缺陷结构整合了石墨烯(来自还原性氧化石墨烯)和碳纳米管(CNT)的3D神经样杂化物。该SP 3类缺陷结构赋予3D纳米碳杂化物以增强的载流子转移,高结构稳定性和电催化耐久性。所示的神经样结构证明了电荷的级联效应以及有关生物电催化和锂硫能量存储的重要性能。在原子/纳米尺度上提出了“类似于sp 3的缺陷结构”的概念和机理,以阐明合理结构的产生以及级联电子转移。

更新日期:2020-09-20
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