Yang Zheng, Wei Su, Zhenghao Wang, Ningtao Zhang, Yi Xing
{"title":"稀土和贵金属促进剂对镍基双功能材料增强CO2甲烷化性能的协同调控及反应机理","authors":"Yang Zheng, Wei Su, Zhenghao Wang, Ningtao Zhang, Yi Xing","doi":"10.1007/s10562-025-04995-w","DOIUrl":null,"url":null,"abstract":"<div><p>With the increasing severity of global carbon emissions, promoting the resource utilization of carbon dioxide (CO<sub>2</sub>) has emerged as the key strategy to address climate change. This study developed Ni-based dual-functional catalysts for CO<sub>2</sub> methanation and introduced various additives (La, Pr, and Ir) to enhance catalytic efficiency. Experimental results indicated that all modified catalysts exhibited high methane selectivity (> 95%) during CO<sub>2</sub> methanation. Among them, the Pr-DFM material demonstrated a 135% increase in methane yield under anoxic conditions compared to the unmodified material. Ir-DFM exhibited excellent anti-oxidation performance at 300 °C, maintaining high catalytic activity after ten cycles. In situ, Fourier transform infrared spectroscopy analysis revealed that the CO<sub>2</sub> conversion pathway for Ir-DFM followed the formate pathway and maintained a stable reaction under oxidative conditions. This study improved the CO<sub>2</sub>-to-methane conversion efficiency by modifying Ni-based dual-functional materials with different additives, with Ir-DFM exhibiting exceptional stability and CO<sub>2</sub> adsorption-catalysis performance. It offers novel catalyst design concepts for CO<sub>2</sub> resource utilization and establishes a theoretical framework for optimizing and applying future catalysts.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":508,"journal":{"name":"Catalysis Letters","volume":"155 5","pages":""},"PeriodicalIF":2.3000,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synergistic Regulation of Rare Earth and Noble Metal Promoters on Ni-based Bifunctional Materials for Enhanced CO2 Methanation Performance and Reaction Mechanism\",\"authors\":\"Yang Zheng, Wei Su, Zhenghao Wang, Ningtao Zhang, Yi Xing\",\"doi\":\"10.1007/s10562-025-04995-w\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>With the increasing severity of global carbon emissions, promoting the resource utilization of carbon dioxide (CO<sub>2</sub>) has emerged as the key strategy to address climate change. This study developed Ni-based dual-functional catalysts for CO<sub>2</sub> methanation and introduced various additives (La, Pr, and Ir) to enhance catalytic efficiency. Experimental results indicated that all modified catalysts exhibited high methane selectivity (> 95%) during CO<sub>2</sub> methanation. Among them, the Pr-DFM material demonstrated a 135% increase in methane yield under anoxic conditions compared to the unmodified material. Ir-DFM exhibited excellent anti-oxidation performance at 300 °C, maintaining high catalytic activity after ten cycles. In situ, Fourier transform infrared spectroscopy analysis revealed that the CO<sub>2</sub> conversion pathway for Ir-DFM followed the formate pathway and maintained a stable reaction under oxidative conditions. This study improved the CO<sub>2</sub>-to-methane conversion efficiency by modifying Ni-based dual-functional materials with different additives, with Ir-DFM exhibiting exceptional stability and CO<sub>2</sub> adsorption-catalysis performance. It offers novel catalyst design concepts for CO<sub>2</sub> resource utilization and establishes a theoretical framework for optimizing and applying future catalysts.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":508,\"journal\":{\"name\":\"Catalysis Letters\",\"volume\":\"155 5\",\"pages\":\"\"},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2025-04-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Catalysis Letters\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10562-025-04995-w\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Catalysis Letters","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10562-025-04995-w","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Synergistic Regulation of Rare Earth and Noble Metal Promoters on Ni-based Bifunctional Materials for Enhanced CO2 Methanation Performance and Reaction Mechanism
With the increasing severity of global carbon emissions, promoting the resource utilization of carbon dioxide (CO2) has emerged as the key strategy to address climate change. This study developed Ni-based dual-functional catalysts for CO2 methanation and introduced various additives (La, Pr, and Ir) to enhance catalytic efficiency. Experimental results indicated that all modified catalysts exhibited high methane selectivity (> 95%) during CO2 methanation. Among them, the Pr-DFM material demonstrated a 135% increase in methane yield under anoxic conditions compared to the unmodified material. Ir-DFM exhibited excellent anti-oxidation performance at 300 °C, maintaining high catalytic activity after ten cycles. In situ, Fourier transform infrared spectroscopy analysis revealed that the CO2 conversion pathway for Ir-DFM followed the formate pathway and maintained a stable reaction under oxidative conditions. This study improved the CO2-to-methane conversion efficiency by modifying Ni-based dual-functional materials with different additives, with Ir-DFM exhibiting exceptional stability and CO2 adsorption-catalysis performance. It offers novel catalyst design concepts for CO2 resource utilization and establishes a theoretical framework for optimizing and applying future catalysts.
期刊介绍：
Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis.
The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.
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