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Ultrafine bimetallic Pt–Ni nanoparticles immobilized on 3-dimensional N-doped graphene networks: a highly efficient catalyst for dehydrogenation of hydrous hydrazine

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Abstract

Ultrafine and uniformly dispersed bimetallic Pt–Ni nanoparticles (NPs) have been immobilized on novel 3-dimensional N-doped graphene networks (NGNs) by a facile wet chemical reduction method. NGNs were obtained by 3-dimensional assembly of graphene layers with simultaneous nitrogen doping via crosslinking of graphene oxide (GO) with melamine formaldehyde resin (MFR) under hydrothermal conditions followed by carbonization. Surprisingly, NGN-supported Pt0.5Ni0.5 NPs exhibit extremely high catalytic activity for the dehydrogenation of hydrazine hydrate, achieving 100% H2 selectivity with the highest turnover frequency (TOF) of 943 h−1 at 303 K reported thus far. The small size and synergistic effects are responsible for the superior catalytic activity.

Graphical abstract: Ultrafine bimetallic Pt–Ni nanoparticles immobilized on 3-dimensional N-doped graphene networks: a highly efficient catalyst for dehydrogenation of hydrous hydrazine

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Publication details

The article was received on 16 Sep 2018, accepted on 20 Nov 2018 and first published on 23 Nov 2018


Article type: Communication
DOI: 10.1039/C8TA09003C
Citation: J. Mater. Chem. A, 2019, Advance Article
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    Ultrafine bimetallic Pt–Ni nanoparticles immobilized on 3-dimensional N-doped graphene networks: a highly efficient catalyst for dehydrogenation of hydrous hydrazine

    A. Kumar, X. Yang and Q. Xu, J. Mater. Chem. A, 2019, Advance Article , DOI: 10.1039/C8TA09003C

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