Low-temperature hydrogen production from water and methanol using   Pt/alpha-MoC catalysts

doi:10.1038/nature21672

CORC > 北京大学 > 化学与分子工程学院

	Low-temperature hydrogen production from water and methanol using Pt/alpha-MoC catalysts
	Lin, Lili ; Zhou, Wu ; Gao, Rui ; Yao, Siyu ; Zhang, Xiao ; Xu, Wenqian ; Zheng, Shijian ; Jiang, Zheng ; Yu, Qiaolin ; Li, Yong-Wang ; Shi, Chuan ; Wen, Xiao-Dong ; Ma, Ding
刊名	NATURE
	2017
关键词	MOLYBDENUM CARBIDE CATALYSTS TOTAL-ENERGY CALCULATIONS AUGMENTED-WAVE METHOD GAS SHIFT CARBON-DIOXIDE SINGLE-ATOM FUEL-CELLS BASIS-SET STEAM HYDROCARBONS
DOI	10.1038/nature21672
英文摘要	Polymer electrolyte membrane fuel cells (PEMFCs) running on hydrogen are attractive alternative power supplies for a range of applications(1-3), with in situ release of the required hydrogen from a stable liquid offering one way of ensuring its safe storage and transportation(4,5) before use. The use of methanol is particularly interesting in this regard, because it is inexpensive and can reform itself with water to release hydrogen with a high gravimetric density of 18.8 per cent by weight. But traditional reforming of methanol steam operates at relatively high temperatures (200-350 degrees Celsius)(6-8), so the focus for vehicle and portable PEMFC applications(9) has been on aqueous-phase reforming of methanol (APRM). This method requires less energy, and the simpler and more compact device design allows direct integration into PEMFC stacks(10,11). There remains, however, the need for an efficient APRM catalyst. Here we report that platinum (Pt) atomically dispersed on a-molybdenum carbide (alpha-MoC) enables low-temperature (150-190 degrees Celsius), base-free hydrogen production through APRM, with an average turnover frequency reaching 18,046 moles of hydrogen per mole of platinum per hour. We attribute this exceptional hydrogen production-which far exceeds that of previously reported low-temperature APRM catalysts-to the outstanding ability of a-MoC to induce water dissociation, and to the fact that platinum and a-MoC act in synergy to activate methanol and then to reform it.; 973 Project [2011CB201402, 2013CB933100]; Natural Science Foundation of China [91645115, 21473003, 21222306, 21373037, 21577013, 91545121]; Chinese Academy of Sciences (CAS) Pioneer Hundred Talents Program; US Department of Energy (DOE), Office of Science, Basic Energy Science, Materials Sciences and Engineering Division; user project at Oak Ridge National Laboratory's Center for Nanophase Materials Sciences (CNMS), which is a DOE Office of Science User Facility; DOE Office of Science by Argonne National Laboratory [DE-AC02-06CH11357]; SCI(E); ARTICLE; 7648; 80-+; 544
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474076]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Lin, Lili,Zhou, Wu,Gao, Rui,et al. Low-temperature hydrogen production from water and methanol using Pt/alpha-MoC catalysts[J]. NATURE,2017.
APA	Lin, Lili.,Zhou, Wu.,Gao, Rui.,Yao, Siyu.,Zhang, Xiao.,...&Ma, Ding.(2017).Low-temperature hydrogen production from water and methanol using Pt/alpha-MoC catalysts.NATURE.
MLA	Lin, Lili,et al."Low-temperature hydrogen production from water and methanol using Pt/alpha-MoC catalysts".NATURE (2017).