Mesoporous Face-Centered-Cubic In4Ni Alloy Nanorices: Superior Catalysts for Hydrazine Dehydrogenation in Aqueous Solution.
Mesoporous face-centered-cubic (fcc) In4Ni alloy nanorices (NRs) were successfully synthesized as superior catalysts for N2H4 dehydrogenation in aqueous solution via a facile solution plasma technique (SPT) in an ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM][BF4]). This incorporation introduces basic sites for dehydrogenation. Also, the synthesis of In and Ni weakens the interactions among generated adspecies such as H2 and NHx and surface metal atoms. Alongside their unique NR structure, the as-prepared fcc-In4Ni alloy NRs exhibited superior performance for N2H4 dehydrogenation in aqueous solution. The activation energy of the fcc-In4Ni alloy NRs was 38.9 ± 1.0 kJ mol(-1). The NRs were also found to be stable for catalytic N2H4 dehydrogenation in aqueous solution, providing an average TOF value of 82.0 (mol of H2 (mol of active In4Ni min)(-1)) over 30 h reaction. These fcc-In4Ni alloy NRs have demonstrated exceptional performance, which indicates that the construction of hydrogen-producing systems from N2H4, capable of matching the performance of NaBH4 and NH3BH3 hydrogen-producing systems for fuel-cell applications, is a promising possibility.
Collaborative Innovation Center of Panxi Strategic Mineral Resources Multipurpose Utilization, College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China.|State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology , Chengdu 610059, China.
Xue
X
Miao
Collaborative Innovation Center of Panxi Strategic Mineral Resources Multipurpose Utilization, College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China.|State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology , Chengdu 610059, China.
Ming Ming
MM
Chen
College of Chemical Engineering and Key Laboratory of Green Chemistry & Technology of Ministry of Education, Sichuan University , Chengdu 610065, China.
Wei
W
Chu
Collaborative Innovation Center of Panxi Strategic Mineral Resources Multipurpose Utilization, College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China.|State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology , Chengdu 610059, China.
Ping
P
Wu
Collaborative Innovation Center of Panxi Strategic Mineral Resources Multipurpose Utilization, College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology , Chengdu 610059, China.|State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology , Chengdu 610059, China.
Dong Ge
DG
Tong
aqueous hydrazine dehydrogenation; bimetal catalysts; ionic liquid; mesoporous face-centered-cubic In4Ni; solution plasma technique