@article{19be977329d64dc990d3bba4c6c7c039,
title = "Bimetallic single atom promoted α-MnO2 for enhanced catalytic oxidation of 5-hydroxymethylfurfural",
abstract = "We report a synergetic dual-metal single-atom (Pd and Ni) promoting approach that modulates the catalytic activity and selectivity of α-MnO2 toward HMF oxidation. Pd and Ni have different spatial doping profiles and catalytic functions. Pd single atoms are embedded in the crystalline lattice of α-MnO2, which activates lattice oxygen and creates abundant oxygen vacancies. Ni single atoms that are mainly anchored on the surface of α-MnO2 improve the ability to dissociate molecular oxygen for healing oxygen vacancies. Pd and Ni work synergistically to accelerate the consumption and recovery of active lattice oxygen during HMF oxidation, which results in 3 fold enhancement of productivity and near-unity DFF selectivity. Ex situ and in situ characterization together with theoretical calculations confirm the pronounced effects of Pd and Ni on oxygen species. Compared to conventional single atom catalysts requiring a metal loading of 1-10 wt%, a single atom promoter requiring a tiny metal loading <0.5",
author = "Xuemei Liao and Mengdie Guo and Wei Tang and Changwen Liu and Wei Luo and Lei Tan and Noguchi, {Tomohiro G.} and Miho Yamauchi and Yonghui Zhao and Xiaopeng Li",
note = "Funding Information: We gratefully thank the following funding for supporting this work: the National Natural Science Foundation of China (no. 21706216), the Sichuan Science and Technology Program (2020YFG0162), and the Young Scholar Project for X. Liao in Xihua University. X. L. acknowledges financial support from the National Natural Science Foundation of China (no. 21972163, 52272289), the Fundamental Research Funds for the Central Universities, the DHU Distinguished Young Professor Program, the Development Fund for Shanghai Talents, the Foundation of State Key Laboratory of Coal Conversion (grant no. J21-22-903), the Innovation Program of Shanghai Municipal Education Commission (program no. 2021-01-07-00-03-E00109) and the Eastern Scholar Research Fund Shanghai Institutions of Higher Learning. We thank the Shanghai Synchrotron Radiation Racility (SSRF) BL02B for providing the beamline time (No. 2020-SSRF-PT-013612). We also would like thank Prof. Hui Zhang from SSRF for his assitance in S-XPS measurements. Publisher Copyright: {\textcopyright} 2022 The Royal Society of Chemistry.",
year = "2022",
month = oct,
day = "17",
doi = "10.1039/d2gc01769e",
language = "English",
volume = "24",
pages = "8424--8433",
journal = "Green Chemistry",
issn = "1463-9262",
publisher = "Royal Society of Chemistry",
number = "21",
}