Enhanced hydrogen storage in MWCNTs decorated by electroless nickel nanoparticles deposited in supercritical CO2 bath

Chih Yao Chen, Jeng Kuei Chang, Kuan Yu Lin, Sung Ting Chung, Wen Ta Tsai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Nano-sized nickel particles were dispersed on multi-walled carbon nanotubes (MWCNTs) via an improved electroless deposition route using a supercritical CO2 fluid. The microstructure, chemical composition and crystallinity of the Ni-decorated CNTs were examined using a transmission electron microscope (TEM), an X-ray energy dispersive spectrometer (EDS), and an X-ray diffractometer (XRD), respectively. The analytical results indicate that, with assistance of the supercritical fluid, Ni nanoparticles with a diameter of approximately 10 nm can be uniformly dispersed on the surface of CNTs. The hydrogen storage capacity of the Ni-decorated CNTs was evaluated with a high-pressure microbalance at room temperature and under a hydrogen pressure of 6.89 MPa. The measured hydrogen adsorption amount of the Ni/CNTs nanocomposite was 1.06 wt%, which was much higher than 0.33 wt% found for the plain CNTs.

Original languageEnglish
Title of host publicationTHERMEC 2009
EditorsTara Chandra, Tara Chandra, Tara Chandra, N. Wanderka, N. Wanderka, N. Wanderka, Walter Reimers, Walter Reimers, Walter Reimers, M. Ionescu, M. Ionescu, M. Ionescu
PublisherTrans Tech Publications Ltd
Pages1148-1151
Number of pages4
ISBN (Print)0878492941, 9780878492947
DOIs
Publication statusPublished - 2010
Event6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 - Berlin, Germany
Duration: 2009 Aug 252009 Aug 29

Publication series

NameMaterials Science Forum
Volume638-642
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009
CountryGermany
CityBerlin
Period09-08-2509-08-29

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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