{"title":"Facilitated CO2 hydrogenation by strong metal-support interaction between Ni and BaCO3","authors":"Wenhao Zhang, Didi Li, Changwei Liu, Zhaocong Jiang, Chuang Gao, Liang Shen, Qi Liu, Runfa Qiu, Haoyuan Gu, Cheng Lian, Jing Xu, Minghui Zhu","doi":"10.1016/j.checat.2024.101113","DOIUrl":null,"url":null,"abstract":"<p>Strong metal-support interactions (SMSIs) have attracted increasing attention due to their geometric and electronic effects in improving catalytic performance. For the first time, an SMSI phenomenon between Ni and BaCO<sub>3</sub> was discovered. We observed the migration of BaCO<sub>3</sub> support onto metallic nickel nanoparticles following H<sub>2</sub> reduction and CO<sub>2</sub> hydrogenation. The resulting porous overlayer not only stabilized nickel nanoparticles from sintering but also increased the number of Ni-BaCO<sub>3</sub> sites. The abundant Ni-BaCO<sub>3</sub> sites significantly promote the adsorption and activation of CO<sub>2</sub>. We also found that both the hydrogen atmosphere and metallic nickel nanoparticles boost the decomposition of BaCO<sub>3</sub>, followed by its regeneration in a CO<sub>2</sub> atmosphere. Furthermore, the CO<sub>2</sub> hydrogenation atmosphere enables the sustainable decomposition-regeneration of BaCO<sub>3</sub>, remarkedly increasing the CO<sub>2</sub> concentration at the Ni-BaCO<sub>3</sub> interface. Ultimately, the promoted CO<sub>2</sub> activation and localized CO<sub>2</sub> enrichment at the Ni-BaCO<sub>3</sub> interface collectively facilitate the CO<sub>2</sub> hydrogenation reaction.</p>","PeriodicalId":53121,"journal":{"name":"Chem Catalysis","volume":"1 1","pages":""},"PeriodicalIF":11.5000,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Chem Catalysis","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1016/j.checat.2024.101113","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Strong metal-support interactions (SMSIs) have attracted increasing attention due to their geometric and electronic effects in improving catalytic performance. For the first time, an SMSI phenomenon between Ni and BaCO3 was discovered. We observed the migration of BaCO3 support onto metallic nickel nanoparticles following H2 reduction and CO2 hydrogenation. The resulting porous overlayer not only stabilized nickel nanoparticles from sintering but also increased the number of Ni-BaCO3 sites. The abundant Ni-BaCO3 sites significantly promote the adsorption and activation of CO2. We also found that both the hydrogen atmosphere and metallic nickel nanoparticles boost the decomposition of BaCO3, followed by its regeneration in a CO2 atmosphere. Furthermore, the CO2 hydrogenation atmosphere enables the sustainable decomposition-regeneration of BaCO3, remarkedly increasing the CO2 concentration at the Ni-BaCO3 interface. Ultimately, the promoted CO2 activation and localized CO2 enrichment at the Ni-BaCO3 interface collectively facilitate the CO2 hydrogenation reaction.
期刊介绍:
Chem Catalysis is a monthly journal that publishes innovative research on fundamental and applied catalysis, providing a platform for researchers across chemistry, chemical engineering, and related fields. It serves as a premier resource for scientists and engineers in academia and industry, covering heterogeneous, homogeneous, and biocatalysis. Emphasizing transformative methods and technologies, the journal aims to advance understanding, introduce novel catalysts, and connect fundamental insights to real-world applications for societal benefit.