Nanoscale Ni-B amorphous alloy catalyst supported on carbon nanotubes
HU Chang-yuan(胡长员)1, 2, DUAN Wu-mao(段武茂)3, NING Yun-long(宁云龙)1,
WU Zhen-fei(伍振飞)1, LI Feng-yi(李凤仪)2
1. Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Technology Normal University,
Nanchang 330013, China;
2. School of Science, Nanchang University, Nanchang 330047, China;
3. Institute of Technology, Jiangxi Agriculture University, Nanchang 330045, China
Received 15 July 2007; accepted 10 September 2007
Abstract: Heat treatment of carbon nanotubes (CNTs) was carried out under ammonia atmosphere and then CNTs were modified by
Triton x-100 (CNTs-T). Ni-B amorphous alloy catalysts supported on CNTs and CNTs-T were prepared by impregnation-chemical
reduction method. The catalysts were characterized by TEM, ICP, XRD, BET and CO chemisorption, and studied in the acetylene
selective hydrogenation. The results show that homogeneous Ni-B amorphous particles with mean size about 10 nm are successfully
prepared on CNTs-T. Compared with Ni-B/CNTs, nickel loading of Ni-B/CNTs-T is increased by about 14.6%. Furthermore, the
activity and selectivity of Ni-B/CNTs-T are much higher than those of Ni-B/CNTs in the acetylene selective hydrogenation under
comparative condition.
Key words: carbon nanotubes; nanoscale Ni-B amorphous alloy; catalytic materials; Triton x-100
1 Introduction
Carbon nanotubes are severely hydrophobic and can
be essentially bundled in solvent. These properties are
generally considered as a significant barrier in both
fundamental research and technological development
toward the practical uses of CNTs. Thus, the
functionalization of CNTs has received much attention
for overcoming above-mentioned problems in recent
years[1 2]. Many functionalization reactions reported in
literatures were based on the covalent amidation or

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