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Received February 7, 2012
Accepted March 8, 2012
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A study of the palladium size effect on the direct synthesis of hydrogen peroxide from hydrogen and oxygen using highly uniform palladium nanoparticles supported on carbon
Youngjin Ye
Jinyoung Chun
Sunyoung Park1
Tae Jin Kim2
Young-Min Chung2
Seung-Hoon Oh2
In Kyu Song1
Jinwoo Lee†
Department of Chemical Engineering, Pohang University of Science and Technology, Pohang 790-784, Korea 1School of Chemical Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 151-744, Korea 2Catalyst Lab, Catalyst & Process R&D Center, Global Technology, SK Innovation, Daejeon 305-712, Korea
jinwoo03@postech.ac.kr
Korean Journal of Chemical Engineering, September 2012, 29(9), 1115-1118(4)
https://doi.org/10.1007/s11814-012-0033-0
https://doi.org/10.1007/s11814-012-0033-0
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Abstract
Highly monodisperse carbon-supported palladium nanoparticles with controllable size (3 nm, 6.5 nm, 9.5 nm) were prepared using a simple colloidal method, and the size dependence of the catalytic performance for the direct synthesis of hydrogen peroxide from hydrogen and oxygen was studied. Smaller-sized supported palladium nanoparticles showed both higher conversion of hydrogen and selectivity for hydrogen peroxide, compared to larger-sized supported particles. Among the catalysts tested, 3-nm Pd nanoparticles supported on carbon showed the highest yield for hydrogen peroxide because of the small size and high crystallinity.
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