Article
Chemistry, Physical
Zouhair Boukha, Juan R. Gonzalez-Velasco, Miguel A. Gutierrez-Ortiz
Summary: Proton-exchange-membrane fuel cells (PEMFCs) are considered the most promising solution for future automotive applications, and the gold supported on fluorine-substituted hydroxyapatite (HAP) catalyst shows extraordinary performance in the CO preferential oxidation (COPROX) process, exhibiting high activity and selectivity for CO elimination.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Jingli Han, Yuanyuan Fan, Yongpeng Yang, Zhongyi Liu
Summary: The study investigates the structural evolution of Au nanoclusters supported on MoS2 under CO oxidation catalytic activity through DFT calculations and molecular dynamics simulations. It reveals that the MoS2 support and structural reconstruction caused by CO adsorption have remarkable effects on the CO oxidation activity, which vary with the size of Au nanoclusters.
APPLIED SURFACE SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Thanaphat Atjayutpokin, Srisin Eaimsumang, Siwaporn Meejoo Smith, Supakorn Boonyuen, Apanee Luengnaruemitchai
Summary: The catalytic activities of Au NPs and Au-CuO catalysts were studied in OSRM and CO oxidation reactions. It was found that the addition of an optimal amount of NaBH4 resulted in small-sized and uniformly distributed Au NPs catalysts, which exhibited higher catalytic activity in the OSRM. The Au-CuO catalysts showed the highest methanol conversion rate, while the monometallic Au catalyst had almost five times higher catalytic CO oxidation activity.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Jochen Schuetz, Heike Stoermer, Patrick Lott, Olaf Deutschmann
Summary: The study reveals that aging catalysts leads to a decline in catalytic activity due to particle sintering, and bimetallic catalysts undergo morphological changes during hydrothermal treatment, transforming from core-shell structures to heterogeneous agglomerates.
Article
Environmental Sciences
Jialin Qiang, Hui Li, Shien Hui, Denghui Wang
Summary: In this paper, the NO-SCO experiments of different catalyst systems were conducted and their physical and chemical properties were analyzed. The effects of loading and doping on catalyst activity were studied, and the catalytic mechanisms were investigated. The results show that Mn2O3 exhibited the best activity, and Ce doping improved the catalytic performance. The study provides insights into the optimization of catalyst systems for NO oxidation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
A. Grigoreva, E. Kolobova, E. Pakrieva, P. Ma Maki-Arvela, S. Kuznetsova, S. A. C. Carabineiro, N. Bogdanchikova, A. Pestryakov, D. Yu. Murzin
Summary: This study explores the possibility of using liquid-phase oxidation with air over supported Ag NPs catalysts as an alternative method for synthesizing oxo-derivatives of betulin. The research demonstrates the evolution of the catalyst's surface and its response to reactant gas composition. The deactivation of the catalysts is also investigated, and a regeneration approach is proposed.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Physical
Luong Xuan Dien, Toru Murayama, Nguyen Tuan Hung, Quang Duc Truong, Huynh Dang Chinh, Masamichi Yoshimura, Masatake Haruta, Tamao Ishida
Summary: Gold nanoparticles supported on titania catalysts were prepared using the solid grinding method, and the catalytic activity was improved by treatment with potassium tert-butoxide. The catalyst exhibited high catalytic activity and stability for CO oxidation.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Applied
I. Lopez-Hernandez, V. Truttmann, C. Garcia, C. W. Lopes, C. Rameshan, M. Stoger-Pollach, N. Barrabes, G. Rupprechter, F. Rey, A. E. Palomares
Summary: The study investigated the dynamic evolution of bimetallic nanocluster catalyst during CO catalytic oxidation using in situ XAFS and DRIFTS techniques. The formation of AgAu alloyed nanoparticles was found to improve catalytic activity and stability, leading to higher conversion rates and consistent performance upon reuse.
Article
Materials Science, Multidisciplinary
Yin-Juan Chen, Hong-Ying Zhuo, Yuan Pan, Jin-Xia Liang, Chen-Guang Liu, Jun Li
Summary: Single-atom catalysts on covalent organic frameworks show potential for high catalytic activity. The study reveals that Pd single atoms can stably bind to triazine COF and exhibit high catalytic activity in CO oxidation reactions.
SCIENCE CHINA-MATERIALS
(2021)
Article
Chemistry, Applied
E. Kolobova, P. Maki-Arvela, A. Grigoreva, E. Pakrieva, S. A. C. Carabineiro, J. Peltonen, S. Kazantsev, N. Bogdanchikova, A. Pestryakov, D. Yu Murzin
Summary: The study highlighted the significance of support materials for gold catalysts in the oxidation of betulin, showing that the nature of support impacts the size and distribution of gold nanoparticles and thus influences catalytic performance. The oxidation of betulin catalyzed by gold was found to be structure-sensitive, requiring an optimal size of gold nanoparticles around 3.3 nm.
Article
Chemistry, Physical
Hao Yan, Qi Shen, Yinghao Sun, Siming Zhao, Ruilong Lu, Mengcong Gong, Yibin Liu, Xin Zhou, Xin Jin, Xiang Feng, Xiaobo Chen, De Chen, Chaohe Yang
Summary: The study showed that the different morphologies of Mn2O3 catalysts have a significant impact on their catalytic performance, with surface oxygen vacancies on the (001) facets closely related to catalytic activity, and the (111) facets helping to prevent over-oxidation of products, thereby improving glycolic acid selectivity. The Mn2O3-truncated octahedron catalyst with both (001) and (111) facets exhibited high catalytic activity and glycolic acid selectivity simultaneously.
Article
Chemistry, Physical
Ganghua Xiang, Shu Zhao, Chundi Wei, Chunyan Liu, Huilong Fei, Zhigang Liu, Shuangfeng Yin
Summary: The study obtained atomically dispersed Au catalysts with superior catalytic performance for CO-PROX reaction. The optimized catalyst maintained high CO conversion rate and CO₂ selectivity at working temperatures for proton exchange membrane fuel cells, exhibiting good catalytic stability. The results suggest that the catalyst's performance can be adjusted by the synergetic interaction between neighboring Au single atoms.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Applied
A. Portillo, A. Ateka, J. Ere Na, J. Bilbao, A. T. Aguayo
Summary: Different acid catalysts, such as SAPO-34, have been tested in the direct synthesis of light olefins. The presence of strongly acidic sites in SAPO-34 favors the reaction mechanism and shape selectivity, resulting in higher olefins selectivity. However, the catalysts undergo deactivation due to coke deposition, and the regeneration of SAPO-34 requires the removal of soft coke and combustion of hard coke.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Environmental Sciences
Wasim Ullah Khan, Iris K. M. Yu, Yuqing Sun, Matthew I. J. Polson, Vladimir Golovko, Frank L. Y. Lam, Isao Ogino, Daniel C. W. Tsang, Alex C. K. Yip
Summary: This study demonstrates the role of copper nanoclusters supported on TiO2 in CO oxidation, showing both high activity and stability. Catalysts with low copper loading did not deactivate after 8 hours of operation, indicating their potential as a promising alternative to noble metal-based catalysts for emission control systems.
ENVIRONMENTAL POLLUTION
(2021)
Article
Chemistry, Physical
Dongyang Zhang, Jianbo Zhang, Run Li, Huiyong Chen, Qingqing Hao, Yonghui Bai, Jianxuan Shang, Lei Zhang, Xiaoxun Ma
Summary: This study investigates the effects of thermal treatment temperature and nickel nitrate impregnation concentration on the CO2 methanation reaction using commercially available coal char supported nickel catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Lu-Cun Wang, Kara J. Stowers, Branko Zugic, Michelle L. Personick, Monika M. Biener, Juergen Biener, Cynthia M. Friend, Robert J. Madix
JOURNAL OF CATALYSIS
(2015)
Article
Chemistry, Physical
L. C. Wang, D. Widmann, R. J. Behm
CATALYSIS SCIENCE & TECHNOLOGY
(2015)
Article
Chemistry, Physical
Lu-Cun Wang, Kara J. Stowers, Branko Zugic, Monika M. Biener, Juergen Biener, Cynthia M. Friend, Robert J. Madix
CATALYSIS SCIENCE & TECHNOLOGY
(2015)
Article
Chemistry, Physical
Lu-Cun Wang, C. M. Friend, Rebecca Fushimi, Robert J. Madix
FARADAY DISCUSSIONS
(2016)
Article
Chemistry, Physical
Lu-Cun Wang, Michelle L. Personick, Stavros Karakalos, Rebecca Fushimi, Cynthia M. Friend, Robert J. Madix
JOURNAL OF CATALYSIS
(2016)
Article
Chemistry, Physical
Branko Zugic, Lucun Wang, Christian Heine, Dmitri N. Zakharov, Barbara A. J. Lechner, Eric A. Stach, Juergen Biener, Miquel Salmeron, Robert J. Madix, Cynthia M. Friend
Article
Chemistry, Physical
Lu-Cun Wang, C. M. Friend, Rebecca Fushimi, Robert J. Madix
FARADAY DISCUSSIONS
(2016)
Article
Chemistry, Applied
L. C. Wang, Y. Zhong, D. Widmann, J. Weissmueller, R. J. Behm
TOPICS IN CATALYSIS
(2018)
Article
Chemistry, Physical
L. C. Wang, M. Tahvildar Khazaneh, D. Widmann, R. J. Behm
JOURNAL OF CATALYSIS
(2013)
Article
Nanoscience & Nanotechnology
Lu-Cun Wang, Yi Zhong, Haijun Jin, Daniel Widmann, Joerg Weissmueller, R. Juergen Behm
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2013)
Article
Chemistry, Physical
Lu-Cun Wang, Yunya Zhang, Jiayi Xu, Weijian Diao, Stavros Karakalos, Bin Liu, Xueyan Song, Wei Wu, Ting He, Dong Ding
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Chemistry, Applied
Meng Li, Bin Hua, Lu-Cun Wang, Zheng Zhou, Kara J. Stowers, Dong Ding
Summary: The transformation of CO2 into valuable products is an important field of research due to its impact on global warming. Single-atom alloy (SAA) catalysts have shown promising results in CO2 hydrogenation reactions. In this study, the authors used density functional theory (DFT) computations to screen Ru and 6 RuX (X = Fe, Co, Ni, Cu, Ir and Pt) SAAs as potential catalysts. The formation of specific intermediates was found to play a critical role in determining the catalysts' activities, and the doping of Co and Pt single atoms into Ru surface was found to enhance the production of methanol.
Article
Chemistry, Physical
Meng Li, Bin Hua, Lu-Cun Wang, Joshua D. Sugar, Wei Wu, Yong Ding, Ju Li, Dong Ding
Summary: Tuning the Ir-O hybridization can alter the catalyst surface chemical environment, enabling the selective production of either CO or CH4 during electrocatalysis. This advanced electrolyser not only enables CO2 electrohydrogenation but also can be extended to the upgrade of different carbon resources, significantly enhancing the techno-economic feasibility of the process.
Article
Chemistry, Applied
Denis Constales, Gregory S. Yablonsky, Lucun Wang, Weijian Diao, Vladimir V. Galvita, Rebecca Fushimi
Article
Nanoscience & Nanotechnology
Shuai Tan, Lucun Wang, Shibely Saha, Rebecca R. Fushimi, Dongmei Li
ACS APPLIED MATERIALS & INTERFACES
(2017)
Article
Chemistry, Physical
Yifan Sun, Ye Lv, Wei Li, Jinli Zhang, Yan Fu
Summary: In this study, PtRu electrocatalysts were fabricated on carbon paper via cyclic electrodeposition for the electrocatalytic hydrogenation (ECH) of phenol. The Pt3Ru3 catalyst exhibited excellent activity and stability for the conversion of phenol to cyclohexanol at ambient temperature and various current densities. The in situ Raman spectroscopy and kinetic study revealed the hydrogenation mechanism of phenol over Pt3Ru3 in acidic electrolyte, providing an effective electrochemical strategy for the facile construction of durable electrode materials and efficient phenol hydrogenation.
JOURNAL OF CATALYSIS
(2024)
Article
Chemistry, Physical
Amir Shahzad, Khezina Rafiq, Muhammad Zeeshan Abid, Naseem Ahmad Khan, Syed Shoaib Ahmad Shah, Raed H. Althomali, Abdul Rauf, Ejaz Hussain
Summary: Photocatalytic hydrogen production through water splitting is an effective method for meeting future energy demands. In this study, researchers synthesized a 1 % Ag2S/Cu2S co-doped CdZnS catalyst and found that it can produce hydrogen at a higher rate. The co-doping of Ag2S and Cu2S in the CdZnS catalyst showed a synergistic effect, with Ag2S promoting oxidation reactions and Cu2S promoting reduction reactions.
JOURNAL OF CATALYSIS
(2024)
