Article
Chemistry, Physical
Ngoc Thang Tran, Thong Le Minh Pham, Trinh Duy Nguyen, Nguyen Van Cuong, Tan Ji Siang, Pham T. T. Phuong, A. A. Jalil, Quang Duc Truong, Sumaiya Zainal Abidin, Ftwi Y. Hagos, Sonil Nanda, Dai-Viet N. Vo
Summary: The study demonstrated that mesoporous gamma-alumina (gamma-Al2O3) synthesized as a support for Co catalyst showed excellent stability and high performance in methane dry reforming, indicating potential applications in the field.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Mahadi B. Bahari, Herma Dina Setiabudi, Trinh Duy Nguyen, Aishah Abdul Jalil, Nurul Ainirazali, Dai-Viet N. Vo
Summary: The study demonstrated the excellent catalytic performance of cobalt supported on mesoporous alumina in CO2-CH4 reforming reactions, attributed to the well dispersion of Co, strong metal-support interaction, and confinement ability of the alumina substrate. Additionally, the amount of coke accumulated on the spent catalyst decreased with the increase of reforming temperature, indicating an improvement in reverse Boudouard reaction.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Applied
Ngoc Thang Tran, P. Senthil Kumar, Quyet Van Le, Nguyen Van Cuong, Pham T. T. Phuong, A. A. Jalil, Gaurav Sharma, Amit Kumar, Ajit Sharma, Bamidele Victor Ayodele, Sumaiya Zainal Abidin, Dai-Viet N. Vo
Summary: The addition of La2O3 promoter can significantly increase the efficiency and product yield of CO2 reforming of methane, with 5% La loading being the optimal choice. The basic nature of La2O3 dopant gives the catalyst higher resistance to carbon deposition.
TOPICS IN CATALYSIS
(2021)
Article
Chemistry, Physical
Anh Ngoc T. Cao, Cham Q. Pham, Le Kim Hoang Pham, Dang Le Tri Nguyen, Pham T. T. Phuong, Thi Tuong Vi Tran, Van-Phuoc Nguyen, Thanh Binh Nguyen, Quyet Van Le, Ngoc Anh Nguyen, Tung M. Nguyen
Summary: The metal-support interface plays a crucial role in the dispersion and catalytic activity of catalysts. This study investigated the effect of cerium on cobalt catalyst supported on gamma-alumina and found that cerium promoted the dispersion and reducibility of cobalt, leading to improved conversion of methane and carbon dioxide.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Mahadi B. Bahari, Che Rozid Mamat, Aishah Abdul Jalil, Nurul Sahida Hassan, Walid Nabgan, Herma Dina Setiabudi, Dai-Viet N. Vo, Bui Thi Phuong Thuy
Summary: Recently, hydrogen generation through CO2-CH4 reforming has been considered as a promising approach to reduce two major greenhouse gases in the atmosphere. However, catalyst deactivation caused by sintering and coke deposition has been a challenge. Therefore, it is crucial to design an efficient catalyst by selecting suitable supports. Mesoporous alumina has attracted great attention due to its unique morphology and pore structure, which can prevent sintering and deactivation of the active metal during the reaction. This review focuses on the synthesis of unique mesoporous alumina using various methods and conditions, as well as its applications and performance as a catalyst support in CO2-CH4 reforming.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Chemical
Linghui Lyu, Jing Zhang, Qingxiang Ma, Shengene Makpal, Xinhua Gao, Hui Fan, Jianli Zhang, Jian Sun, Tian-sheng Zhao
Summary: The study prepared Fe-doped Ni/Al2O3 catalysts with bimodal-pore structure using the EISA method, which demonstrated improved stability and activity in the DRM reaction. The long-term stability of the catalytic reaction was tested, showing promising results for the development of DRM catalytic systems.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Applied
Anh Ngoc T. Cao, Duy Ha Le Phuong, Pham T. T. Phuong, Thanh H. Trinh, Tung M. Nguyen, Phuong T. H. Pham
Summary: The addition of manganese to the cobalt catalyst supported on gamma alumina improved its physicochemical properties, leading to higher metal dispersion and enhanced carbon dioxide adsorption. The manganese-promoted catalyst exhibited higher activity and stability in carbon dioxide reforming of methane compared to the pristine catalyst. The presence of manganese also resulted in notable increases in CH4 and CO2 conversions. The role of carbon dioxide adsorption in catalytic activity was investigated, showing that a proper combination of carbon dioxide activation and methane dissociation can significantly enhance catalytic activity with lower activation energies.
TOPICS IN CATALYSIS
(2023)
Article
Chemistry, Physical
Zhoufeng Bian, Wenqi Zhong, Yang Yu, Zhigang Wang, Bo Jiang, Sibudjing Kawi
Summary: Catalysts of Ni supported on home-made mesoporous alumina exhibited high activity and stability in DRM, with NiAl2O4 spinel structure contributing to improved performance. Control of calcination temperature is crucial for catalyst properties.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Applied
Farshad Gholizadeh, Ali Izadbakhsh, Jiankun Huang, Yan Zi-Feng
Summary: A series of Ni-based catalysts supported on cubic ordered mesoporous alumina (COMA) were synthesized and tested in dry reforming of methane reaction. The 15%NiO/COMA catalyst showed the best catalytic performance, with stability test results proving no activity loss after 210 hours, demonstrating excellent catalytic stability of the COMA structure in DRM reaction.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Chemistry, Applied
A. J. Reynoso, U. Iriarte-Velasco, M. A. Gutierrez-Ortiz, J. L. Ayastuy
Summary: The addition of Pt to cobalt aluminate resulted in a synergistic effect that promoted the reduction of both Pt and Co species, as well as cobalt dispersion, increasing the amount of exposed metallic sites. Bimetallic catalysts showed excellent stability and activity in glycerol APR and WGS, but had lower selectivity to hydrogen.
Article
Engineering, Chemical
Bin Li, Xiaoqing Yuan, Lvyin Li, Xiujun Wang, Baitao Li
Summary: Alloying nickel with a transition metal and stabilizing an active metal on bimodal support can effectively enhance carbon resistance for dry reforming of methane reaction. The study showed that the bimodal mesoporous alumina-supported Ni-Co alloy catalyst displayed improved carbon resistance compared to other catalysts, attributed to the suppression of methane dissociation and enhanced mass transport.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Yan Xiong, Wanghui Zhao, Dong Gu, Zuoxiu Tie, Wenhua Zhang, Zhong Jin
Summary: In this study, highly ordered mesoporous cobalt oxides with modulated surface states were prepared for efficient photothermal water-steam reforming of CO2 to C-2 products with high activity and tunable selectivity. The mesoporous Co3O4 exhibited a high acetic acid selectivity of 96% and a yield rate of 73.44 mu mol g(-1) h(-1), while the surface-modified mesoporous Co(3)O(4)@CoO achieved 100% ethanol selectivity with a yield rate of 14.85 mu mol g(-1) h(-1). The pH value was found to strongly influence the selectivity of C-2 products, and density functional theory confirmed the role of reduced surface states and rich oxygen vacancies in promoting the variation of C-2 products from acetic acid to ethanol.
Article
Chemistry, Physical
Jingyan Ao, Ting Wang, Bofeng Zhang, Sibao Liu, Guozhu Liu
Summary: Steam reforming of liquid hydrocarbon fuels using Rh/Al2O3 catalysts with different morphologies of alumina support was studied. The catalyst with nanorod morphology showed superior catalytic activity and stability, achieving the highest hydrogen production rate compared to other catalysts. This research is significant for improving hydrogen production efficiency.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
A. J. Reynoso, J. L. Ayastuy, U. Iriarte-Velasco, M. A. Gutierrez-Ortiz
Summary: This study investigated the influence of process variables on the catalytic performance in the glycerol hydrogenation reaction, finding that higher reaction temperature/pressure, lower space velocity, and more diluted feedstocks favored H2 production. Additionally, a threshold value for the ratio of dehydrogenation to dehydration liquid products was identified at 10% glycerol concentration. Characterization of the post-reaction catalyst revealed that Co leaching was the major drawback.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Esteban L. Fornero, Julia Vecchietti, Manuela Boucinha Rodrigues, Juan C. Hernandez-Garcido, Adrian L. Bonivardi
Summary: The performance of gallium promoted cobalt-ceria catalysts for ethanol steam reforming was studied. Gallium promoted catalyst showed higher conversion efficiency of ethanol and production of oxygenated by-products compared to cobalt-ceria catalyst. The role and mechanism of gallium promotion were analyzed and explained through detailed characterization and analysis of the catalyst.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
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)