文献类型：期刊文献

英文题名：Synthesis and performance of Pd-Multi@HCS catalysts with Pd nanoparticles partially embedded in the inner wall of hollow carbon spheres for the direct synthesis of hydrogen peroxide from hydrogen and oxygen

作者：Shi, Yongyong Jiang, Donghai Zhao, Jingyun Wu, Lang Zhao, Chenchen Ma, Jun Pan, Hongyan Lin, Qian

第一作者：Shi, Yongyong

通信作者：Pan, HY[1];Lin, Q[1];Pan, HY[2];Lin, Q[2];Pan, HY[3];Lin, Q[3]

机构：[1]Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China;[2]Guizhou Key Lab Green Chem & Clean Energy Technol, Guiyang 550025, Guizhou, Peoples R China;[3]Guizhou Engn Res Ctr Efficient Utilizat Ind Waste, Guiyang 550025, Guizhou, Peoples R China;[4]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China

第一机构：Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China

通信机构：corresponding author), Guizhou Univ, Sch Chem & Chem Engn, Guiyang 550025, Guizhou, Peoples R China;corresponding author), Guizhou Key Lab Green Chem & Clean Energy Technol, Guiyang 550025, Guizhou, Peoples R China;corresponding author), Guizhou Engn Res Ctr Efficient Utilizat Ind Waste, Guiyang 550025, Guizhou, Peoples R China.

年份：0

外文期刊名：NEW JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000815217000001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (Grant No. 22068009), the Natural Science Basic Research Program of Guizhou Province (Grant No. ZK[2022]088), and the Cultivation Project of Guizhou University (Grant No. [2020]38).

语种：英文

摘要：Pd-Multi@HCS catalysts with Pd nanoparticles partially embedded in the inner wall of hollow carbon spheres were synthesized by a hard template method. The synthesis process of Pd-Multi@HCS catalysts and the influence of the pore structure of the hollow carbon shell on the catalytic performance for the direct synthesis of H2O2 from H-2 and O-2 were systematically researched in this work. When the mass ratio of resorcinol (R) and formaldehyde (F) was R/F = 0.20 g/0.286 g, the mass of CTAB was 2.0 g, and the additional amount of 0.075 M H2PdCl4 solution was 1.0 ml; Pd nanoparticles obtained by in situ reduction using freshly prepared NaBH4 solution with an average size of 6.7 nm showed good dispersion and partial embedding in the inner wall of the hollow carbon shell. The average size of cavity diameter and the hollow carbon shell thickness were 145 nm and 8.03 nm, respectively. More importantly, there were a large number of micropores with a pore size distribution of 1.5 nm in the hollow carbon shell. This special hollow structure ensured the maximum exposure of Pd active sites and the optimal transfer and diffusion ability, which were conducive to improving the catalytic activity and stability of the Pd-Multi@HCS catalysts.