Progressive Fabrication of a Pt‐Based High‐Entropy‐Alloy Catalyst toward Highly Efficient Propane Dehydrogenation
Year: 2024
Type: article
Abstract: High‐entropy alloys (HEAs) have emerged as burgeoning heterogeneous catalysts due to their vast material space, unique structure, and superior stability. However, the dominant trial‐and‐error approaches hamper the exploration of efficient catalysts, necessitating the development of rational design strategies. Here, we report a progressive approach to the design and fabrication of HEA catalysts guided by alloying effects toward propane dehydrogenation. Cu, Sn, Au, and Pd are selected and demonstrated to induce dilution, encapsulation, surface enrichment, and inhomogeneity effects on Pt. The fabricated HEA, PtCuSnAuPd/SiO2, exhibits excellent activity, selectivity, and stability. The propylene formation rates reach 256 and 390 molC3H6 gPt−1 h−1 at 550 and 600 °C, respectively. Systematic characterizations reveal that the random elemental mixing, structural stability, and high Pt exposure promote the exposure of abundant stable isolated Pt sites. This work comprehensively explores the rational design and fabrication of HEA catalysts from a unique perspective, offering opportunities for developing advanced catalysts.
Source: Angewandte Chemie
Authors: Jun Luo, Xu Li, Yongjie Ye, Tao Zhou, Wenlong Wu, Hongliang Li, Qing Yang, Han Yan, Jie Zeng
Language: English
Subfield: Catalysis
Field: Chemical Engineering
Domain: Physical Sciences
Open Access status: bronze
Funders: Salt Science Research Foundation, Tencent, National Natural Science Foundation of China, Chinese Academy of Sciences, University of Science and Technology of China, Yulin University, Natural Science Foundation of Anhui Province, Hefei Science Center, Chinese Academy of Sciences, National Key Research and Development Program of China, Fundamental Research Funds for the Central Universities, National Science Fund for Distinguished Young Scholars, Dalian National Laboratory for Clean Energy
Awards: G1207532831, G1743288215, G1943135044, G2374774132, G2395150428, G280488503, G2886771982, G2942507398, G305281727, G3170438431, G3746986151, G3801927605, G4358731121, G4662015687, G5140594840, G518167496, G5291220268, G5301695444, G5611456237, G5635897839, G6259247475, G6366421617, G6458086112, G6506452441, G6614641478, G7010568122, G7341678141, G739949171, G7520666007, G7716941418, G8158696403, G8271032224, G8703892158, G8717301958, G8863457553
OpenAlex ID: W4404078802