Bimetallic catalysts selectively grown <i>via</i> N-doped carbon nanotubes for hydrogen generation

다국어 초록 (Multilingual Abstract)

<P>This work provides both a facile method to synthesize bimetallic catalysts (BMCs) <I>via</I> pyridine-like N atoms of N-doped carbon nanotubes (NDCNTs) and also a picture about how to design the optimal BMC for hydrogen generation from the hydrogen storage material. In principle, the ratio of one component to another component could be generically extended to fabricate the high-performance BMCs on host nanostructures. Indeed, we demonstrate that the BMC composed of the optimum composition (Ni<SUB>0.72</SUB>Pt<SUB>0.28</SUB>) results in the large hydrogen generation of ∼28 kg h<SUP>−1</SUP>/kg of catalyst from an aqueous borane ammonia hydrogen storage, thus being capable of satisfying the DOE target (7.2 kg h<SUP>−1</SUP>) required for advanced applications even with the small amount of our BMC attached onto the NDCNTs. This high hydrogen generation rate is found to be attributed to the optimal distance between active Pt and cheap Ni atoms for effective hydrogen generation.</P> <P>Graphic Abstract</P><P>Ni–Pt bimetallic catalysts on N-doped carbon nanotubes show an excellent hydrogen generation rate of 27.6 kg h<SUP>−1</SUP>/kg of catalyst with a small activation energy.
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