Crystal shape controlled H2 storage rate in nanoporous carbon composite with ultra-fine Pt nanoparticle

Tsan Yao Chen*, Yanhui Zhang, Liang Ching Hsu, Alice Hu, Yu Zhuang, Chia Ming Fan, Cheng-Yu Wang, Tsui Yun Chung, Cheng Si Tsao, Haw Yeu Chuang

*此作品的通信作者

研究成果: Article同行評審

7 引文 斯高帕斯(Scopus)

摘要

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 H 2 ambient at 102-105 °C. Among the steps in hydrogen storage, decomposition of H2 molecule 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.

原文English
文章編號42438
期刊Scientific reports
7
DOIs
出版狀態Published - 14 2月 2017

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