Article
Chemistry, Multidisciplinary
Qun Li, Ningjing Luo, Dong Xia, Peng Huang, Xiaobin Liu, Tareque Odoom-Wubah, Jiale Huang, Guoliang Chai, Daohua Sun, Qingbiao Li
Summary: The study synthesized CuO/Co3O4 catalysts for the catalytic oxidation of benzene, revealing excellent catalytic performance and stability attributed to improved reducibility and enhanced reactant adsorption capacity.
ENVIRONMENTAL SCIENCE-NANO
(2022)
Article
Energy & Fuels
Ivan Pedroarena, Lucia Grande, Jonathan J. Torrez-Herera, Sophia A. Korili, Antonio Gil
Summary: This research investigates the interactions between alumina-supported nickel catalysts and other metals, and their impact on the catalyst's performance. The reduction capacity of oxide phases has been analyzed, revealing that Pd facilitates the formation of easily reducible NiO species. Furthermore, the impregnation order of Mo and Pd does not significantly affect the catalysts' properties.
Review
Chemistry, Inorganic & Nuclear
Yitao Zhao, Hongmei Cao, Lei Tao, Zhiyong Qiao, Changming Ding
Summary: Single-atom catalysts (SACs) are a new type of catalyst that exhibit 100% metal dispersion and maximized metal atom utilization, making them highly promising for catalytic reactions such as benzene oxidation to phenol. Extensive efforts have been made to develop efficient SACs for benzene oxidation, resulting in successful fabrication of various metal SACs. This comprehensive review summarizes the recent research progress in SACs for boosting benzene oxidation, focusing on the roles of metal atoms and supports, and highlighting the applications of advanced SACs and their structure-activity correlation.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Applied
Henry Steven Fabian Ramos, Joseph P. Mmbaga, Robert E. Hayes
Summary: This paper presents a study on catalyst configuration for lean methane combustion using computational modelling. The use of platinum group metals catalyst in a washcoated monolith is investigated, and the computational model is validated using experimental data from a small-scale pilot plant reactor. The results show that catalyst activity and reactor length are critical for system performance and stability.
Article
Chemistry, Physical
Hyo-Sik Kim, Hyun-Ji Kim, Ji-Hyeon Kim, Jin-Ho Kim, Suk-Hwan Kang, Jae-Hong Ryu, No-Kuk Park, Dae-Sik Yun, Jong-Wook Bae
Summary: This article summarizes the recent developments in the catalytic combustion of volatile organic compounds (VOCs) using noble-metal-based catalysts. It also introduces the latest trends in the catalytic mechanisms of VOC combustion and catalyst deactivation.
Article
Chemistry, Physical
Seungjun Lee, Hyunsu Han, Wongeun Yoon, Won Bae Kim
Summary: The highly active composite catalysts of VOx supported on Al-Ti mixed oxide were prepared and proved to have efficient catalytic oxidation performance towards 1,2-dichloroethane (DCE) as representative CVOCs. The strategy of catalyst design developed in this study may provide a promising way for the removal of CVOCs using earth-abundant, non-precious and efficient composite catalysts.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Engineering, Environmental
Yanwei Sun, Guangyan Xu, Yingjie Wang, Wei Shi, Yunbo Yu, Hong He
Summary: In this study, a series of encapsulated structured catalysts with palladium nanoparticles confined in hydrophobic silicalite-2 were prepared, which showed high catalytic activity and long-term stability for methane oxidation under harsh conditions.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Energy & Fuels
Xuxu Zhai, Fangli Jing, Luming Li, Xia Jiang, Junjun Zhang, Jun Ma, Wei Chu
Summary: A series of layered manganese oxides catalysts were successfully prepared by self-driving combustion (SDC) technology using potassium permanganate and citric acid as precursors. Noble metals were employed to modulate the obtained manganese oxide matrix, resulting in new nanocatalysts with improved catalytic performance, with 0.5Pt-SDC-13 exhibiting the highest activity.
Article
Chemistry, Physical
Yu Yang, Gang Wang, Mei Yang, Huanhuan Yang, Meijia Liu, Falu Dang
Summary: The study demonstrated that electronic modulation between Pd and Pt improved the catalytic activity and resistance to poisoning, preventing the deactivation of Pd active components.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Engineering, Environmental
Huiru Ma, Guifang Chen, Fuyu Huang, Yuzhong Li, Liqiang Zhang, Yang Jin
Summary: Ammonia nitrogen is a common pollutant in wastewater, causing eutrophication in water bodies by depleting dissolved oxygen. Catalytic ozonation technology can effectively remove ammonia nitrogen without introducing additional pollutants. This study summarized the removal efficiency, product distribution, and reaction mechanism of different catalysts in catalytic ozonation for ammonia nitrogen.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Engineering, Environmental
Zhan Shi, Fang Dong, Zhicheng Tang, Xiuyan Dong
Summary: To enhance the sulfur resistance of 3DOM LaCoO3 perovskite catalysts, strontium (Sr) and manganese (Mn) elements were doped. The co-doping of Sr and Mn resulted in superior catalytic performance for benzene combustion and significantly improved the sulfur resistance. The research provides valuable reference for the development of efficient catalysts for industrial degradation of benzene.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Haruro Ishitani, Masahiro Sasaya, Shu Kobayashi
Summary: Continuous-flow nitration of aromatic compounds using aqueous nitric acid as the catalyst under liquid phase was studied. Mo(VI)-supported TiO2-ZrO2 mixed-metal oxide was used in a suitable packed bed reactor, and a good yield of nitroarene was obtained. Further investigations revealed that the mixed-metal oxide prepared by sol-gel method with calcination at 700 degrees C showed higher catalytic performance, with a yield of over 90% at 4.0 h-1 WHSV. Long-term operation studies showed a conversion rate of 87% with a 43-fold amount of toluene delivered to the catalyst.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Physical
Emily Cheng, Justin Notestein
Summary: Potassium-promoted, alumina-supported molybdenum oxide is investigated for non-oxidative isobutane dehydrogenation, with an emphasis on sub-monolayer coverages. The study shows that sub-monolayer metal oxides may warrant further investigation as light alkane dehydrogenation, given their stable dehydrogenation activity.
JOURNAL OF CATALYSIS
(2021)
Review
Chemistry, Physical
Xingyuan Gao, Qiuping Dai, Xihong Lu, Sibudjing Kawi
Summary: This paper reviews the reaction mechanisms of electro-catalytic hydrogen evolution reaction (HER) and the preparation methods for single atom catalysts (SACs) supported on carbons. It discusses the applications of non-noble metal-based SACs/C catalysts in HER and elaborates on the structure-performance relationships. The challenges and perspectives of electrolytic HER are also proposed.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Review
Chemistry, Physical
Yong Zhang, Zhigao Tian, Lin Huang, Honghong Fan, Qiufei Hou, Ping Cui, Wanqiang Wang
Summary: This review provides an overview of noble metal-based catalysts used in the direct catalytic decomposition of N2O, with a focus on recent advances. The review discusses various factors that influence the catalyst performance, such as catalyst supports, preparation methods, additives, and impurity gases. Additionally, future trends in catalyst systems for the direct catalytic decomposition of N2O are also discussed.