Controlled Synthesis of MOF-Encapsulated NiPt Nanoparticles toward Efficient and Complete Hydrogen Evolution from Hydrazine Borane and Hydrazine

Zhujun Zhang; Shiliang Zhang; Qilu Yao; Xiangshu Chen; Zhang-Hui Lu

doi:10.1021/acs.inorgchem.7b01910

Controlled Synthesis of MOF-Encapsulated NiPt Nanoparticles toward Efficient and Complete Hydrogen Evolution from Hydrazine Borane and Hydrazine

Inorg Chem. 2017 Oct 2;56(19):11938-11945. doi: 10.1021/acs.inorgchem.7b01910. Epub 2017 Sep 20.

Authors

Zhujun Zhang¹, Shiliang Zhang¹, Qilu Yao¹, Xiangshu Chen¹, Zhang-Hui Lu¹

Affiliation

¹ Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University , Nanchang 330022, China.

PMID: 28930439
DOI: 10.1021/acs.inorgchem.7b01910

Abstract

The catalytic dehydrogenation of hydrazine borane (N₂H₄BH₃) and hydrous hydrazine (N₂H₄·H₂O) for H₂ evolution is considered as two of the pivotal reactions for the implementation of the hydrogen-based economy. A reduction rate controlled strategy is successfully applied for the encapsulating of uniform tiny NiPt alloy nanoclusters within the opening porous channels of MOFs in this work. The resultant Ni_0.9Pt_0.1/MOF core-shell composite with a low Pt content exerted exceedingly high activity and durability for complete H₂ evolution (100% hydrogen selectivity) from alkaline N₂H₄BH₃ and N₂H₄·H₂O solution. The features of small NiPt alloy NPs, strong synergistic effect between NiPt alloy NPs and the MOF, and open pore structure for freely mass transfer made NiPt/MIL-101 an excellent catalyst for highly efficient H₂ evolution from N₂H₄BH₃ or N₂H₄·H₂O.