title: Crystal shape controlled H2storage rate in nanoporous carbon composite with ultra-fine Pt nanoparticle.
abstract: This study demonstrates that the hydrogen storage rate (HSR) of nanoporous carbon supported platinum nanocatalysts (NC) is determined by their heterojunction and geometric configurations. The present NC is synthesized in an average particle size of ~1.5 nm by incipient wetness impregnation of Pt4+at carbon support followed by annealing in H2ambient at 102-105 °C. Among the steps in hydrogen storage, decomposition of H2molecule into 2 H atoms on Pt NC surface is the deciding factor in HSR that is controlled by the thickness of Pt NC. For the best condition, HSR of Pt NC in 1~2 atomic layers thick (4.7 μg/g min) is 2.6 times faster than that (1.3 μg/g min) of Pt NC with higher than 3 atomic layers thick.
authors.affiliation: Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.|Institute of Nuclear Engineering and Science, National Tsing Hua University, Hsinchu 30013, Taiwan.
authors.forename: Tsan-Yao
authors.initials: TY
authors.lastname: Chen
authors.affiliation: Department of Mechanical and Biomedical engineering, City University of Hong Kong, 88 Tat Chee Ave, Kowloon, Hong Kong, SAR.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Zhang
authors.affiliation: Scientific Research Division, National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan (R.O.C.).
authors.forename: Liang-Ching
authors.initials: LC
authors.lastname: Hsu
authors.affiliation: Department of Mechanical and Biomedical engineering, City University of Hong Kong, 88 Tat Chee Ave, Kowloon, Hong Kong, SAR.
authors.forename: Alice
authors.initials: A
authors.lastname: Hu
authors.affiliation: Department of Mechanical and Biomedical engineering, City University of Hong Kong, 88 Tat Chee Ave, Kowloon, Hong Kong, SAR.
authors.forename: Yu
authors.initials: Y
authors.lastname: Zhuang
authors.affiliation: Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan.|Industrial Technology Research Institute, Green Energy and Environment Research Laboratories, Hsinchu 310, Taiwan.
authors.forename: Chia-Ming
authors.initials: CM
authors.lastname: Fan
authors.affiliation: Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan.
authors.forename: Cheng-Yu
authors.initials: CY
authors.lastname: Wang
authors.affiliation: Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, Taoyuan City 32546, Taiwan.
authors.forename: Tsui-Yun
authors.initials: TY
authors.lastname: Chung
authors.affiliation: Institute of Nuclear Energy Research, Atomic Energy Council, Executive Yuan, Taoyuan City 32546, Taiwan.
authors.forename: Cheng-Si
authors.initials: CS
authors.lastname: Tsao
authors.affiliation: Green Technology Research Institute, CPC Corporation, Taiwan, Kaohsiung 81126, Taiwan, R.O.C.
authors.forename: Haw-Yeu
authors.initials: HY
authors.lastname: Chuang