title: Self-supported Cu(OH)2@Co2CO3(OH)2core-shell nanowire array as a robust catalyst for ammonia-borane hydrolysis.
abstract: High hydrogen content and long-term stability in aqueous solutions make ammonia-borane (AB) a promising hydrogen-storage material. It is highly attractive but still challenging to develop efficient catalysts for real-time and controllable hydrogen release from AB solution under mild conditions. Herein, we describe the use of a three-dimensional hierarchical Cu(OH)2@Co2CO3(OH)2core-shell nanowire array on copper foam (denoted as Cu(OH)2@Co2CO3(OH)2/CF) as a highly efficient catalyst for hydrolytic dehydrogenation of AB. The Cu(OH)2@Co2CO3(OH)2/CF works as an on/off switch for on-demand hydrogen generation with a low activation energy of 44.3 KJ mol-1and a turnover frequency of 39.72 mol(H2)/mol(cat.)/min. It also maintains activity and integration after long-term usage.
authors.affiliation: College of Materials Science and Engineering, Institute for Graphene Applied Technology Innovation, Laboratory of Fiber Materials and Modern Textile, The Growing Base for State Key Laboratory, Qingdao University, Qingdao 266071, People's Republic of China.
authors.forename: Jianmei
authors.initials: J
authors.lastname: Wang
authors.forename: Xiao
authors.initials: X
authors.lastname: Ma
authors.forename: Wenrong
authors.initials: W
authors.lastname: Yang
authors.forename: Xuping
authors.initials: X
authors.lastname: Sun
authors.forename: Jingquan
authors.initials: J
authors.lastname: Liu