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1. Mechanistic and kinetic insights into the Pt-Ru synergy during hydrogen generation from ammonia borane over PtRu/CNT nanocatalysts

Author:
Duan, Xuezhi,   et al.   ; Chen, Wenyao; Li, Dali; Peng, Chong; Qian, Gang; Chen, De; Zhou, Xinggui;     Show all 7 Authors
Source:
Journal of catalysis 2017 v.356 pp. 186-196
ISSN:
0021-9517
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; activation energy; ammonia; catalysts; catalytic activity; cost effectiveness; dehydrogenation; durability; energy-dispersive X-ray analysis; entropy; hydrogen production; platinum; ruthenium; transmission electron microscopy
Abstract:
... Increasing the utilization efficiency of noble metals by the synergy with less expensive metals is an important yet challenging issue in heterogeneous catalysis. Herein, exemplified with Pt-catalyzed hydrolytic dehydrogenation of ammonia borane, partial substitution of the Pt catalysts by over 11 times less expensive Ru is studied to obtain highly efficient and cost-effective Pt-based catalysts. I ...
DOI:
10.1016/j.jcat.2017.10.016

2. Unique reactivity in Pt/CNT catalyzed hydrolytic dehydrogenation of ammonia borane

Author:
Duan, Xuezhi,   et al.   ; Chen, Wenyao; Ji, Jian; Qian, Gang; Li, Ping; Zhou, Xinggui; Chen, De; Yuan, Weikang;     Show all 8 Authors
Source:
Chemical communications 2014 v.50 no.17 pp. 2142-2144
ISSN:
1364-548X
Subject:
ammonia; catalysts; catalytic activity; dehydrogenation; hydrogen production; nanomaterials; oxidation; oxygen; particle size; texture
Abstract:
... We demonstrate an unprecedented H₂ generation activity in the hydrolytic dehydrogenation of ammonia borane over acid oxidation- and subsequent high temperature-treated CNT immobilized Pt nanocatalysts to combine the merits of defect-rich and oxygen group-deficient surfaces and unique textural properties of supports as well as optimum particle size of Pt. ...
DOI:
10.1039/c3cc48027e