Journal
NANO RESEARCH
Volume 12, Issue 10, Pages 2584-2588Publisher
TSINGHUA UNIV PRESS
DOI: 10.1007/s12274-019-2490-9
Keywords
metal-organic frameworks; nanostructured PtNi particles; hydrosilylation; nitrogen-doped carbon
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Funding
- National Postdoctoral Program for Innovative Talents [BX20180160]
- China Postdoctoral Science Foundation [2018M640113]
- National Natural Science Foundation of China [21890383]
- Industrial Science and Technology Tackling Program of Shaanxi Province [2016GY-245]
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Here, we successfully developed nanostructured PtNi particles supported on nitrogen-doped carbon (NC), which were obtained by carbonization of metal-organic frameworks under different temperatures, forming the nano-PtNi/NC-600, nano-PtNi/NC-800, nano-PtNi/NC-900 and nano-PtNi/NC-1000 catalysts. For hydrosilylation of 1-octene, we found that the nano-PtNi/NC-1000 catalyst exhibits higher activity for anti-Markovnikov hydrosilylation of 1-octene than those of nano-PtNi/NC-600, nano-PtNi/NC-800, nano-PtNi/NC-900 catalysts. Experiments have verified that benefiting from obvious charge transfer from nano-PtNi particles to NC support carbonized at 1,000 degrees C, the nano-PtNi/NC-1000 catalyst achieved almost complete conversion and produce exclusive adduct for anti-Markovnikov hydrosilylation of 1-octene. Importantly, the nano-PtNi/NC-1000 catalyst exhibited good reusability for the hydrosilylation reaction. This work provides a new path to optimize electronic structure of catalysts by support modification to enhance electron transfer between metal active species and supports for highly catalytic performance.
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