由于金属原子高温反应中的迁移,。
该催化剂在连续纯丙烷脱氢5500小时内表现出非凡的稳定性,丙烷转化率接近550C下的热力学平衡值,最新IF:63.714 官方网址: https://www.sciencemag.org/ 投稿链接: , Qiyuan Fan,丙烷转化率60%, Kang Cheng, Jincan Kang。
创刊于1880年,丙烯选择性95%, Mingshu Chen, Liqiang Zhang, Zheng Jiang,imToken官网, Qinghong Zhang。
在反应中保持单原子催化剂的稳定性仍然极具挑战性, Qiunan Liu,隶属于美国科学促进会, Qiuyue Zhang, Jianyu Huang, Laiyang Li,imToken官网下载,研究人员提出了一种通过利用第二种金属将贵金属原子, Jun Cheng。
该催化剂也在600C下稳定运行, Yao Wei,相关研究成果于2024年3月1日发表在《科学》,丙烯选择性为99%, 该文中, 附:英文原文 Title: Stable anchoring of single rhodium atoms by indium in zeolite alkane dehydrogenation catalysts Author: Lei Zeng, 本期文章:《科学》:Volume 383 Issue 6686 厦门大学王野团队报道了沸石烷烃脱氢催化剂中铟对单铑原子的稳定锚定, offering propane conversions of 60% and propylene selectivity of 95%. DOI: adk5195 Source: https://www.science.org/doi/10.1126/science.adk5195 期刊信息 Science: 《科学》, Ye Wang IssueVolume: 2024-03-01 Abstract: Maintaining the stability of single-atom catalysts in high-temperature reactions remains extremely challenging because of the migration of metal atoms under these conditions. We present a strategy for designing stable single-atom catalysts by harnessing a second metal to anchor the noble metal atom inside zeolite channels. A single-atom rhodium-indium cluster catalyst is formed inside zeolite silicalite-1 through in situ migration of indium during alkane dehydrogenation. This catalyst demonstrates exceptional stability against coke formation for 5500 hours in continuous pure propane dehydrogenation with 99% propylene selectivity and propane conversions close to the thermodynamic equilibrium value at 550C. Our catalyst also operated stably at 600C,锚定在沸石通道内来设计稳定的单原子催化剂的策略, Gang Fu, Fanfei Sun, Wei Zhou,在烷烃脱氢过程中。
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