Decorating carbon nanotubes with Ni particles using an electroless deposition technique for hydrogen storage applications

作者：Lin Kuan Yu; Tsai Wen Ta^*; Chang Jeng Kuei

来源：International Journal of Hydrogen Energy, 2010, 35(14): 7555-7562.

DOI：10.1016/j.ijhydene.2010.04.145

• Ni nanoparticle
• Electroless deposition
• Carbon nanotube
• Hydrogen storage
• Nano-composite

A facile and low-cost electroless deposition technique is utilized to decorate multi-walled carbon nanotubes (CNTs) with Ni. The obtained composites are attempted to use as hydrogen storage materials, whose performance is evaluated with a high-pressure microbalance. Effects of the concentration of plating solution, deposition time, and reaction temperature on the loading amount, particle size, morphology, and distribution density of Ni are studied using a transmission electron microscope. With proper deposition parameters, highly dispersed Ni nanoparticles with a uniform diameter can be fabricated on CNTs, causing a notable hydrogen spillover reaction on the composite. The optimum hydrogen storage capacity of the prepared Ni-decorated CNTs with a average diameter of 5 nm, measured at 6.89 MPa and 25 degrees C, is 1.02 wt%, which is almost three times higher than that (0.35 wt%) of pristine CNTs.

• 出版日期2010-7
• 单位中央民族大学