%0 Journal Article
%A Guo, Fangwei
%A Wang, Guowei
%A Jiang, Zhiwei
%A Liu, Yang
%A Zhao, Xiaofeng
%A Xiao, Ping
%T Growth of carbon nanofibers/tubes by an in-situ polymerization route without metal-catalyst
%J Carbon
%V 100
%@ 0008-6223
%C Amsterdam [u.a.]
%I Elsevier Science
%M FZJ-2017-05203
%P 417 - 427
%D 2016
%X An in-situ pyrolytic and polymerizable method was investigated to grow carbon nano-fibers/tubes (CNF/CNT) without metal-catalysts. The 3 mol % yttria-stabilized zirconia hollow fiber membranes (3YSZ-HFM) were used as supports for growing the CNF/CNT. The polyethersulfone (PES) and polyvinylpyrrolidone (PVP) were used as polymer binders and carbon sources. The as-grown CNF (formed at 1250 °C/4h) had diameters of 50–100 nm and lengths of 1–50 μm, and the length gradually decreased along radial direction of the supports. The as-grown CNT (formed at 1450 °C/4h) were shorter and larger in diameter. A novel solid-state transformation mechanism was proposed, in which the carbon black particles (CB) were the carbonized products of PES/PVP, then the CB grew into the CNF/CNT. Thermal stresses originated from sintering of CB itself and 3YSZ particles were believed to be the driving forces that promoting the CNT/CNF nucleation and growth. The thermal stresses of the pure 3YSZ-HFM and 3YSZ/(CNF/CNT)-HFM were theoretically and experimentally discussed base on linear elastic thoery and Raman spectroscopy.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000369961400048
%R 10.1016/j.carbon.2016.01.041
%U https://juser.fz-juelich.de/record/836079