Article
Engineering, Environmental
Junjie Chen, Chih-Han Liu, Hien N. Pham, Todd J. Toops, Abhaya K. Datye, Eleni A. Kyriakidou
Summary: By tuning the surface coverage of γ-Al2O3 nanosheets, ultrastable Pt/CeO2-Al2O3 nanosheet catalysts with improved low-temperature activity and stability were successfully synthesized based on the Sabatier principle of metal-support interaction.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Peng Yin, Qiang-Qiang Yan, Hai-Wei Liang
Summary: In supported metal catalysts, the addition of sulfur-doped carbon as a support can induce various types of strong metal-support interaction, enhancing the catalyst's resistance to sintering at high temperatures and enabling its use in a wide range of applications with high dispersion and metal loading.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Mingyu Chu, Qi Pan, Wenyi Bian, Yu Liu, Muhan Cao, Congyang Zhang, Haiping Lin, Qiao Zhang, Yong Xu
Summary: This study reports the first example of strong metal-support interaction (SMSI) between palladium and gallium oxide within PdGa nanoparticles, demonstrating the important role of PdGa alloy and Ga2O3 coexistence in the formation of SMSI. The PdxGay NPs used as catalysts show higher catalytic performance for propyne semi-hydrogenation compared to conventional catalysts, indicating their potential in catalyst design and application. The reaction pathways of PSH on PdxGay NPs have been further elucidated by density functional theory calculations, providing a deeper understanding of SMSI and its implications for heterogeneous catalysis.
JOURNAL OF CATALYSIS
(2021)
Review
Chemistry, Inorganic & Nuclear
Hui Xu, Yitao Zhao, Qing Wang, Guangyu He, Haiqun Chen
Summary: Single-atom catalysts offer high reactivity and selectivity, but are susceptible to sintering and agglomerating. Introducing appropriate supports can optimize the local coordination environment and electronic properties, preventing sintering.
COORDINATION CHEMISTRY REVIEWS
(2022)
Review
Chemistry, Physical
Zhouxin Luo, Guoqiang Zhao, Hongge Pan, Wenping Sun
Summary: This review provides a comprehensive overview and analysis of the formation mechanisms and surface energy minimization mechanisms of SMSI, as well as its applications in catalysts. It offers important insights for further research and design of advanced heterogeneous catalysts.
ADVANCED ENERGY MATERIALS
(2022)
Article
Agricultural Engineering
Dongpei Zhang, Wei Yu, Ze Li, Zhenyang Wang, Bin Yin, Xi Liu, Jian Shen, Chaohe Yang, Wenjuan Yan, Xin Jin
Summary: Glycerol can be catalytically converted into 1,2-propanediol through transfer hydrogenolysis using PtPd/C bimetallic catalysts. The study shows that PtPd/C-900 catalyst exhibits the best performance, and the catalytic reaction is size-sensitive in PtPd/C catalysts. Strong metal-support interaction enhances the activity of the catalyst.
BIOMASS & BIOENERGY
(2022)
Review
Chemistry, Applied
Huayang Zhang, Wenjie Tian, Xiaoguang Duan, Hongqi Sun, Yingping Huang, Yanfen Fang, Shaobin Wang
Summary: This minireview summarizes the typical metal-support interaction patterns for anchoring single-atom metals on metallic compound supports. It highlights the contribution of dispersed single metal atoms and metal-support interaction to photocatalytic reactions, and proposes future challenges and perspectives.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Jie Deng, Zhangjie Li, Shanshan Li, Xinyi Yin, Mengchen Li, Jianli Wang, Yongdong Chen, Yaoqiang Chen
Summary: In order to address the migration of metallic species between Al2O3 and CZ, kappa-Ce2Zr2O8 phase was constructed to strengthen Pd-CZ interaction. The Pd/kappa CZA catalyst exhibited higher catalytic activity, selectivity, and intrinsic activity.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Engineering, Environmental
Xiaotong Li, Guangzhi He, Jinzhu Ma, Xufei Shao, Yingfa Chen, Hong He
Summary: The study demonstrates that Ag-Mn catalysts prepared by impregnation method with high Ag utilization exhibit excellent O-3 decomposition activity compared to other catalysts. The unique Ag-O-Mn bonds formed between Ag and manganese vacancies improve the dispersion of Ag nanoparticles, leading to enhanced O-3 decomposition performance.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Gang Wang, Yuan Jing, Kah Wei Ting, Zen Maeno, Xiaorui Zhang, Shuhei Nagaoka, Ken-ichi Shimizu, Takashi Toyao
Summary: In this study, the effect of oxygen storage materials (OSMs) on the catalytic performance of Pt-based three-way catalysts (TWCs) was investigated. It was found that increasing the ceria content enhanced the catalytic activity and resistance to CO poisoning. However, hydrothermal ageing resulted in a degradation of catalyst performance.
CATALYSIS SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Hiroki Nakayama, Makoto Nagata, Hideki Abe, Yukihiro Shimizu
Summary: The study investigated the sintering of Rh particles using in situ tunneling electron microscopy as the temperature increases, revealing different sintering behaviors in vacuum and N-2 atmospheres. In N-2 atmosphere, the sintering of support material was observed first before Rh particle sintering. The calculated junction energies were consistent with in situ TEM observations in the N-2 atmosphere.
Article
Chemistry, Physical
Wenjuan Shi, Hyun-Uk Park, Ah-Hyeon Park, Liangyao Xue, Seong-Kyu Kim, Gu-Gon Park, Young-Uk Kwon
Summary: Metal oxides, particularly TiO2, have been investigated as an alternative support to carbon in conventional Pt/C catalysts due to their high electrochemical stability at high electrode potentials. The low conductivity of metal oxides, however, has been a major challenge. In this study, the researchers successfully addressed this issue by creating conductive MO2_x (M = Ti and Zr) through solid state reduction with NaBH4. Pt/MO2_x catalysts demonstrated significantly improved electrocatalytic performance for oxygen reduction reaction (ORR) compared to Pt/C catalysts, exhibiting enhanced mass activity (MA), specific activity (SA), and long-term durability. This was attributed to the strong metal-support interaction (SMSI) effect between MO2_x and Pt nanoparticles (NPs) as well as the high conductivity of MO2_x supports. These findings suggest that Pt/MO2_x catalysts could be a promising replacement for Pt/C catalysts in fuel cell applications.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Materials Science, Ceramics
Matias Gaston Rinaudo, Gina Pecchi, Luis Eduardo Cadus, Maria Roxana Morales
Summary: Mechanochemical activation of Pd-based catalysts supported on high-energy ball milled ceria improved physicochemical properties and achieved strong metal-support interaction. However, the distinctive properties achieved in the supports were lost during catalysts preparation, affecting catalytic activity. Glycerol selective oxidation tests showed that the mechanochemically activated Ce5002 support exhibited unexpected catalytic behavior comparable to Pd/Ce00 catalyst.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Arik Beck, Hannes Frey, Xing Huang, Adam H. Clark, Emmett D. Goodman, Matteo Cargnello, Marc Willinger, Jeroen A. van Bokhoven
Summary: Platinum nanoparticles supported by titania can form overlayer due to strong metal-support interaction, which can enhance the catalyst's properties and prevent sintering. The overlayer can be reversed through oxidative treatments, but recent findings suggest its stability in oxygen. In our study, we used in situ transmission electron microscopy to investigate the changes in the overlayer under different conditions and found that high temperature and oxygen atmosphere preserved the overlayer, preventing platinum evaporation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Environmental Sciences
Yijun Shi, Jialu Wang, Renxian Zhou
Summary: The size of Pt nanoparticles in Pt/CeO2-TiO2 catalysts affects their degradation activity towards benzene and 1,2-dichloroethane (DCE), with smaller Pt particle sizes enhancing the metal-support interaction and redox properties for deep oxidation at low temperature. Additionally, Pt/CeO2-TiO2 catalysts with larger Pt nanoparticles exhibit more acidic sites, contributing to the conversion of DCE to C2H3Cl. Furthermore, Pt/CeO2-TiO2 catalysts show high stability in DCE degradation reactions and are minimally affected by the presence of benzene and water in the feed gases.
