Research Article

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2019, 12(12): 2966–2970

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https://doi.org/10.1007/s12274-019-2539-9

Immobilizing palladium nanoparticles on boron-oxygen-functionalized carbon nanospheres towards efficient hydrogen generation from formic acid

Shan Zhong1,2, Nobuko Tsumori3, Mitsunori Kitta1, and Qiang Xu1,2,4 (*)

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1 Research Institute of Electrochemical Energy, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka 563-8577, Japan
2 Graduate School of Engineering, Kobe University, Kobe, Hyogo 657-8501, Japan
3 Department of Applied Chemistry and Chemical Engineering, Toyama National College of Technology, 13 Hongo-machi, Toyama 939-8630, Japan
4 AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Kyoto 606-8501, Japan

Keywords: boron-oxygen functionalization, palladium, formic acid, heterogeneous catalysis, hydrogen generation, carbon nanosphere
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  • Abstract
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Carbon nanospheres (XC-72R) were functionalized by boron-oxygen (B-O) through coannealing with boric acid, to which highly dispersed palladium nanoparticles (Pd NPs) (~ 1.7 nm) were immobilized by a wet chemical reduction for the first time. The resultant Pd/OB-C catalyst exhibits significantly improved activity for the dehydrogenation from formic acid (FA) compared to pristine XC-72R supported Pd NPs (Pd/C). Impressively, by adding melamine precursor, the B-O and nitrogen (N)-functionalized product OB-C-N displays an extremely high B content, ca. 34 times higher than OB-C. The Pd/OB-C-N catalyst with an ultrafine Pd particle size of ~ 1.4 nm shows a superb activity, with a turnover frequency (TOF) as high as 5,354 h−1 at 323 K, owing to the uniform ultrafine Pd NPs and the effect from B-O and N functionalities.
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Immobilizing palladium nanoparticles on boron-oxygen-functionalized carbon nanospheres towards efficient hydrogen generation from formic acid. Nano Res. 2019, 12(12): 2966–2970 https://doi.org/10.1007/s12274-019-2539-9

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