Buckled
Amorphous Hollow Carbon Spheres: Facile Fabrication,
Buckling Process, and Applications as Electrode Materials for Supercapacitors
Version 2 2019-08-08, 14:40
Version 1 2019-08-08, 14:35
Posted on 2019-08-08 - 14:40
Buckled
hollow carbon nanospheres (BHCSs) integrate several attractive
properties desired for a variety of potential applications. However,
the development of a feasible and simple method for preparing BHCS
nanoparticles remains a great challenge. Herein, we present a facile
strategy for fabricating monodisperse BHCSs via the compression of
intact hollow carbon nanospheres (HCSs) with improved mechanical strength.
The essence of our strategy lies in the successful preparation of
robust HCSs that can sustain large mechanical deformation during compression,
based on the introduction of polyvinylpyrrolidone in the synthesis
of HCS templates. Both experiments and finite element analyses are
conducted to probe the deformation mechanism of buckling, suggesting
that the residual stress introduced by pyrolysis of precursors plays
a predominant role in the buckling process. Furthermore, the use of
BHCSs as high-performance supercapacitors is demonstrated. Our work
provides important insights into the engineering of robust amorphous
carbon nanomaterials by the template method and mechanical modulation
and provides an innovative synthetic strategy for fabricating asymmetric
hollow spheres with potential for a diversity of applications.
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Zhu, Zhifeng; Chen, Ze; Lin, Gaojian; Ge, Yuanhang; Tu, Yingfeng; Chen, Hui; et al. (2019). Buckled
Amorphous Hollow Carbon Spheres: Facile Fabrication,
Buckling Process, and Applications as Electrode Materials for Supercapacitors. ACS Publications. Collection. https://doi.org/10.1021/acsami.9b07412
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AUTHORS (8)
ZZ
Zhifeng Zhu
ZC
Ze Chen
GL
Gaojian Lin
YG
Yuanhang Ge
YT
Yingfeng Tu
HC
Hui Chen
SY
Sunjie Ye
XY
Xiaoming Yang