Article
Chemistry, Physical
Edgardo Meza Fuentes, Johana Rodriguez Ruiz, Laurence Massin, Francisco J. Cadete Santos Aires, Arnaldo da Costa Faro, Jose Mansur Assaf, Maria do Carmo Rangel
Summary: The study demonstrates the effectiveness of copper-based solid catalysts obtained from hydrotalcites in the water-gas shift reaction. Catalysts with higher zinc and aluminum content require higher temperatures for structural collapse. The material with the highest metallic copper content exhibits the highest activity in the reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Energy & Fuels
Miriam Gonzalez-Castano, Svetlana Ivanova, Miguel Angel Centeno, Theophiles Ioanides, Harvey Arellano-Garcia, Jose Antonio Odriozola
Summary: This study evaluates the functional modifications induced by Zr and Fe as dopants in Pt/CeO2-MOx/Al2O3 catalysts to improve water gas shift performance. Iron and zirconia dopants significantly influence the activity and reaction mechanisms of Pt/ceria catalysts, with a synergistic effect observed when both metals are combined, leading to higher CO conversion rates and catalytic activity.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Review
Chemistry, Physical
Juan Wang, Chang-Xin Zhao, Jia-Ning Liu, Yun-Wei Song, Jia-Qi Huang, Bo-Quan Li
Summary: This review systematically summarizes the current advances of dual-atom catalysts for ORR and OER electrocatalysis. The intrinsic advantages of dual-atom catalysts and the mechanisms focusing on the electronic structure of active sites are discussed. The structure-activity relationship is comprehensively discussed based on theoretical simulations and experimental results, providing a methodology for rational structural design. The current synthesis methods and performance comparison are presented, and future perspectives for the development of advanced dual-atom catalysts for ORR and OER electrocatalysis are highlighted.
Article
Chemistry, Inorganic & Nuclear
Wei Zuo, Zhenhang Xu, Mengyu Hu, Yueying Yu, Jinyan Liu, Gongzhen Cheng, Pingping Zhao
Summary: Non-noble metals, especially nickel-iron-based catalysts, have shown potential for replacing traditional noble metals as catalysts in water oxidation for hydrogen energy utilization. In this study, we synthesized an OER electrocatalyst by loading vanadium-iron-nickel trimetallic hydroxide nanosheets on a VO(OH)(2) substrate, which exhibited excellent catalytic performance and stability compared to commercial IrO2 and other non-noble metal catalysts. Interphase ionic migration and vanadium ion migration were observed, introducing oxygen vacancies and improving electrical coordination and conductivity. DFT calculations further confirmed the role of vanadium migration in lowering the energy barrier of water-splitting.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Natalia Diaz Montenegro, William S. Epling
Summary: The methane oxidation and oxygen storage capacity of a bilayer Pt/Pd/Al2O3 over a Mn0.5Fe2.5O4 spinel catalyst under periodic conditions were studied before and after SO2 exposure. Improvement in CH4 oxidation conversion was observed under periodic conditions compared to steady-state conditions before sulfur exposure. After sulfur exposure, a loss in CH4 oxidation performance and oxygen storage capacity of the spinel material was observed, but regeneration methods under periodic conditions led to improved CH4 conversion.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Seongmin Choi, Ki Bok Nam, Heon Phil Ha, Dong Wook Kwon
Summary: Cu supported on Ce-Y via CeO2-Y2O3 solid solution was reformed to improve the activity in catalytic N2O decomposition. Cu/Ce0.5Y0.5 achieved the highest activity. The number of accessible sites and oxygen vacancies increased with Y species loading, but the activity of Cu/Ce0.1Y0.9 decreased due to the difficulty of releasing O2.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Chemistry, Physical
Nozomu Ishiguro, Hirosuke Matsui, Kohei Wakamatsu, Yoya Suzuki, Oki Sekizawa, Kiyofumi Nitta, Yasuko Terada, Tomoya Uruga, Mizuki Tada
Summary: Iron oxides are widely used as catalysts due to their reversible redox properties, but phase transitions can cause irreversible degradation. By doping Cr into the crystalline framework of iron oxide dendrites, the stability of the structural transformation of iron oxides is improved. Nano-X-ray absorption fine structure spectroimaging was used to visually observe the phase distribution of FeOx-dendrites and Cr-FeOx particles during oxidation, revealing the phase transition trends and probability densities in different Fe density zones.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Yue Jiang, Qing Wang, Jing Xu, Shaohong Zang, Liqiao Chen, Luhui Wang, Liuye Mo
Summary: A series of Ce1-XSnXO2 catalysts were synthesized and characterized for their physical and chemical structures. The Ce1-XSnXO2 catalysts exhibited high catalytic activity, with Ce-0.Sn-8(0).O-2(2) catalyst showing the best performance and stability.
Article
Chemistry, Physical
Masaaki Haneda, Yuichiro Nakamura, Tatsuya Yamada, Shigekazu Minami, Naohiro Kato, Katsuya Iwashina, Yoshinori Endo, Yunosuke Nakahara, Kinichi Iwachido
Summary: The study evaluated the light-off performance of engine-aged model three-way catalysts and found a satisfactory correlation between the light-off temperatures under simulated- and real-exhaust gas conditions. It was observed that the quality of the Pd-support oxide interface and the surface state of Pd particles were strongly affected by high-temperature engine ageing. Additionally, Pd particles with a high fraction of corner sites were found to be highly active for three-way catalytic reactions.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Applied
Zhiyu Zhou, Michael P. Harold, Dan Luss
Summary: Simultaneous conversion of NO, CO and C3H6 was carried out on washcoated monoliths containing oxygen storage material-promoted mixed Platinum group metals to evaluate the promotion effects and identify the best architecture. PGM supported directly on the OSM was found to be the best design for one type of OSM, while a dual-layer architecture outperformed the MFO-supported PGM catalyst. Enhancement in conversion efficiency was achieved with the dual-layer PGM-MFO catalyst due to a direct catalytic contribution from the spinel. The study provides insights into the benefits of OSM and guidance for optimizing multi-component PGM + OSM catalyst composition and architecture.
Article
Chemistry, Multidisciplinary
Ying Zhu, Yifan Gao, Lesen Gao, Xia Gao, Peng Jiang, Yuanhui Cheng
Summary: By employing a double riveting and steric hindrance strategy, monodispersed iron with a high-loading of 12.8 wt% has been successfully achieved. The designed catalyst exhibits superior catalytic activity and stability towards oxygen reduction reaction and shows great potential for application in energy devices.
Article
Chemistry, Physical
Tae-Yeol Choi, Hak-Min Kim, Min-Ju Park, Chang-Hoon Jeong, Dae-Woon Jeong
Summary: Highly active and stable CeO2, ZrO2, and Zr(1-x)Ce(x)O2-supported Co catalysts were prepared and their physicochemical properties were investigated. The increase in ZrO2 content enhanced the surface area and reducibility of the catalysts, but deteriorated the interaction between Co and the support and the dispersion of Co. The Co-Zr0.6Ce0.4O2 catalyst exhibited the best catalytic performance and stability due to its high reducibility and oxygen storage capacity.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Xin Ding, Run Jiang, Jialin Wu, Minghui Xing, Zelong Qiao, Xiaofei Zeng, Shitao Wang, Dapeng Cao
Summary: This study successfully synthesized the heterostructure of nickel nitride and ceria on nickel foam, showing excellent hydrogen evolution and oxygen evolution performance. Ceria plays different roles in the hydrogen evolution and oxygen evolution processes. The study reveals the different catalytic mechanisms of ceria in boosting the hydrogen evolution and oxygen evolution activities of nickel nitride, providing useful guidance for designing high-performance bifunctional catalysts.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Tingru Chen, Takuya Hasegawa, Yusuke Asakura, Masato Kakihana, Teruki Motohashi, Shu Yin
Summary: The study successfully synthesized YBaCo4O7+delta sample using a glycine-complex decomposition method at a low temperature, and demonstrated its superior oxygen storage performance in temperature swing adsorption process.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Akira Yoko, Thunyapong Kamonvarapitak, Gimyeong Seong, Takaaki Tomai, Tadafumi Adschiri
Summary: In this study, organic surface-modified Ce1-xZrxO2-delta nanoparticles were synthesized using supercritical hydrothermal method. Zr intake into the CeO2 lattice and vice versa was observed. The surface modification of Ce1-xZrxO2-delta nanoparticles with carboxylic acids resulted in decreased particle size and induced Zr into the CeO2 lattice. The 70% Zr loading sample exhibited extraordinarily high oxygen storage capacity at low temperatures.
Article
Materials Science, Paper & Wood
Bhaskar Devu Mukri, Killi Krushnamurty, Arif Chowdhury, Duvvuri Suryakala, Challapalli Subrahmanyam
Article
Chemistry, Multidisciplinary
Bhairi Lakshmi Narayana, Bhaskar Devu Mukri, P. Ghosal, Ch Subrahmanyam
Article
Chemistry, Physical
Bhaskar Devu Mukri, Gargi Dutta, Umesh V. Waghmare, M. S. Hegde
CHEMISTRY OF MATERIALS
(2012)
Article
Chemistry, Physical
Bhaskar Devu Mukri, Umesh V. Waghmare, M. S. Hegde
CHEMISTRY OF MATERIALS
(2013)
Article
Chemistry, Inorganic & Nuclear
Sudhanshu Sharma, Bhaskar Devu Mukri, M. S. Hegde
DALTON TRANSACTIONS
(2011)
Article
Chemistry, Physical
Tinku Baidya, Parthasarathi Bera, Bhaskar Devu Mukri, Sanjit Kumar Panda, Oliver Kroecher, Martin Elsener, M. S. Hegde
JOURNAL OF CATALYSIS
(2013)
Article
Chemistry, Multidisciplinary
Bhaskar Devu Mukri, M. S. Hegde
JOURNAL OF CHEMICAL SCIENCES
(2017)
Article
Chemistry, Multidisciplinary
S. R. Sanjaykumar, Bhaskar Devu Mukri, Satish Patil, Giridhar Madras, M. S. Hegde
JOURNAL OF CHEMICAL SCIENCES
(2011)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)