In:
Angewandte Chemie International Edition, Wiley, Vol. 54, No. 52 ( 2015-12-21), p. 15725-15729
Abstract:
Ammonia–borane (AB) is a promising chemical hydrogen‐storage material. However, the development of real‐time, efficient, controllable, and safe methods for hydrogen release under mild conditions is a challenge in the large‐scale use of hydrogen as a long‐term solution for future energy security. A new class of low‐cost catalytic system is presented that uses nanostructured Ni 2 P as catalyst, which exhibits excellent catalytic activity and high sustainability toward hydrolysis of ammonia–borane with the initial turnover frequency of 40.4 mol (H2) mol (Ni2P) −1 min −1 under air atmosphere and at ambient temperature. This value is higher than those reported for noble‐metal‐free catalysts, and the obtained Arrhenius activation energy ( E a =44.6 kJ mol −1 ) for the hydrolysis reaction is comparable to Ru‐based bimetallic catalysts. A clearly mechanistic analysis of the hydrolytic reaction of AB based on experimental results and a density functional theory calculation is presented.
Type of Medium:
Online Resource
ISSN:
1433-7851
,
1521-3773
DOI:
10.1002/anie.201508113
Language:
English
Publisher:
Wiley
Publication Date:
2015
detail.hit.zdb_id:
2011836-3
detail.hit.zdb_id:
123227-7
Bookmarklink