Article
Green & Sustainable Science & Technology
Thikhamporn Burimsitthigul, Boonyawan Yoosuk, Chawalit Ngamcharussrivichai, Pattarapan Prasassarakich
Summary: The study investigated the hydrodeoxygenation of palm oil catalyzed by unsupported nickel-molybdenum sulfide, showing that longer reaction time and higher temperature enhanced n-alkane yield. The catalyst with a structure consisting of weakly coupled layers, rim sites, and Ni edges efficiently catalyzed the reaction and could be reused for multiple cycles.
Article
Energy & Fuels
Pojawan Aiamsiri, Dusadee Tumnantong, Boonyawan Yoosuk, Chawalit Ngamcharussrivichai, Pattarapan Prasassarakich
Summary: This research investigated the performance of unsupported and γ-Al2O3 supported Ni-Mo catalysts for palm oil deoxygenation to biohydrogenated diesel. It was found that the hydrothermal method for preparing 0.2-NiMoS2 catalyst was efficient, while the H-NiMoS2/γ-Al2O3-0.2 catalyst prepared using a one-step hydrothermal method showed good HDO activity. Both catalysts could be reused for at least three cycles while maintaining good performance.
Article
Chemistry, Physical
Daria Ryaboshapka, Laurent Piccolo, Mimoun Aouine, Pascal Bargiela, Valerie Briois, Pavel Afanasiev
Summary: In this study, ultradispersed molybdenum-based catalysts were successfully prepared by sulfidation of thiomolybdates and showed higher HDS activity than conventional MoS2 reference catalysts. Mixing with cobalt further increased the turnover frequencies, exceeding those of benchmark CoMoS catalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Daria Ryaboshapka, Thomas Len, Pascal Bargiela, Mimoun Aouine, Christophe Geantet, Valerie Briois, Laurent Piccolo, Pavel Afanasiev
Summary: This study investigates the ultradispersion characteristics of MoS(x) catalysts on different supports. It is found that the support materials significantly affect the structure and temperature evolution of MoS(x). The sulfidation process involves the formation of oxysulfide and MoS(3)-like intermediates, which then transform into MoS(x) clusters. Compared to MoS2 nanoslabs, the coordination numbers of Mo in ultradispersed clusters decrease and the Mo-S and Mo-Mo distances shorten. Characterizations such as STEM-ADF confirm the prevalence of few-atom clusters and single-atom species in the catalysts. The activity per Mo atom in the thiophene hydrodesulfurization reaction varies with MoS(x) dispersion, with the sequence being Mo/carbons > Mo/TiO2 > Mo/Al2O3 & AP > Mo/SiO2 according to XAS measurements.
Article
Engineering, Chemical
Guoxia Jiang, Zhenwen Yang, Fenglian Zhang, Ganggang Li, Zheng Wei, Ben Niu, Mengfei Zhao, Zhongshen Zhang, Zhengping Hao
Summary: It is significant to find materials with excellent catalytic activity and stability for the thermal decomposition of H2S, due to its low yield and high reaction temperature. In this study, a high dispersion and sulfidation degree of MoS2 phases with a promoter were prepared, leading to outstanding catalytic activity. The results provide insights for designing H2S decomposition catalysts and offer potential applications in resource recovery technology.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Shuisen He, Tingting Huang, Yu Fan
Summary: Novel alumina-supported Ni-Mo catalysts for hydrodesulfurization were prepared via assembly method induced by tetradecylamine, which improved Mo dispersion and Ni modification, and promoted the formation of NiMoS phases.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Applied
Andrea Fasolini, Elena Spennati, Sina Ebrahim Atakoohi, Matteo Percivale, Guido Busca, Francesco Basile, Gabriella Garbarino
Summary: Ni/Mg/Al mixed oxides were prepared from layered double hydroxides of the hydrotalcite family. The prepared materials consist of a rock-salt type Mg1-xNixO solid solution with Al3+ in the tetrahedral interstices. These materials, when activated at high temperature, convert into optimal size supported Ni metal catalysts which show high activity and selectivity for CO2 methanation. The presence of basic oxides as activating components enhances the adsorption of CO2 on the support, forming surface (bi)carbonates as active species.
Article
Chemistry, Physical
Hector de Paz Carmona, Zdenek Tisler, Eliska Svobodova, Uliana Akhmetzyanova
Summary: This paper investigates the activity and stability of six sulfur-free Al2O3-supported and phosphorus-modified Co-Mo and Ni-Mo carbide catalysts during hydrotreating. The results show that adding 0.5% of phosphorus increases catalyst acidity and reducibility, leading to improved catalyst activity and stability during co-processing.
Review
Chemistry, Applied
Enlai Wang, Fuhui Yang, Mingyu Song, Guoliang Chen, Qinqin Zhang, Fang Wang, Liancheng Bing, Guangjian Wang, Dezhi Han
Summary: This review provides an overview of the research progress in unsupported catalysts for the hydrodesulfurization (HDS) of fuel, including template-free methods, template methods, and future development prospects.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Chemistry, Applied
Dezhi Han, Qinghong Li, Enlai Wang, Wenpeng Xie, Guoliang Chen, Qinqin Zhang, Liancheng Bing, Fang Wang, Haitao Fu, Guangjian Wang
Summary: The microstructure changes of unsupported hydrodesulfurization catalysts were investigated in this study. The 3DOM NiMo unsupported catalysts were successfully fabricated using a PMMA colloidal crystal template and citric acid. The characterization results showed that these catalysts had a well-defined 3DOM structure, providing abundant active sites and high specific surface area, leading to improved catalytic performance. The 3DOM NiMo-1 catalyst exhibited excellent performance in thiophene conversion.
Article
Chemistry, Physical
Carolina Valdes, Diego Gonzalez, Kenneth Flores, T. M. Eubanks, John Valle, Carlos Hernandez, Jorge Lopez, Mataz Alcoutlabi, J. G. Parsons
Summary: In this study, catalytic systems based on La-doping were developed to improve the activity and performance of CoMoS2 hydrodesulfurization catalysts. The La-doped catalysts showed enhanced catalytic activity compared to undoped CoMoS2, with the major reaction pathway being direct desulfurization.
APPLIED CATALYSIS A-GENERAL
(2021)
Article
Energy & Fuels
Anna A. Salomatina, Ksenia A. Nadeina, Oleg V. V. Klimov, Irina G. Danilova, Evgeny Yu. Gerasimov, Igor P. Prosvirin, Vera P. Pakharukova, Yuriy A. Chesalov, Alexander S. Noskov
Summary: This study aimed to investigate the effect of NiMo/gamma-Al2O3 catalyst composition on its catalytic properties. The results showed that increasing the Ni/Mo molar ratio affected the formation of sulfide active component and decreased the interaction between active metals and the support. The excess nickel also contributed to the promotion of MoS2 particles and the formation of bulk nickel sulfide particles.
Article
Chemistry, Physical
Ksenia A. A. Nadeina, Sergey V. V. Budukva, Yuliya V. V. Vatutina, Polina P. P. Mukhacheva, Evgeniy Yu. Gerasimov, Vera P. P. Pakharukova, Oleg V. V. Klimov, Aleksandr S. S. Noskov
Summary: This study describes a method for preparing granular unsupported hydrotreating catalysts with Ni-Mo-W and investigates the influence of the Ni/Mo/W atomic ratio on their properties. The results show that the Ni/Mo/W atomic ratio affects the formation and composition of active compounds while having little influence on the textural properties of the catalysts.
Article
Chemistry, Physical
Rufino M. Navarro Yerga, Barbara Pawelec, Noelia Mota, Rafael Huirache-Acuna
Summary: New Ni-Mo-Mo hydrodesulfurization (HDS) catalysts supported by Al2O3-CeO2 materials were synthesized to achieve low sulfur content in gas oil. The addition of CeO2 loading in the support significantly improved the activity and hydrogenation function of the catalyst, leading to efficient conversion of dibenzothiophene (DBT).
Article
Chemistry, Applied
M. O. Alonso-Perez, B. Pawelec, T. A. Zepeda, G. Alonso-Nunez, R. Nava, R. M. Navarro, R. Huirache-Acuna
Summary: A series of trimetallic Ni-Mo-W catalysts supported on cubic mesoporous silica modified with Ti were prepared to study the effect of Ti incorporation method on the physical and chemical properties. The catalysts prepared by sol-gel method demonstrated to be more effective toward sulfur removal from dibenzothiophene compared to the catalyst modified by post-synthesis method.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
N. R. Demikhova, M. I. Rubtsova, G. A. Kireev, K. A. Cherednichenko, V. A. Vinokurov, A. P. Glotov
Summary: A micro-mesoporous zeolite with ZSM-5 morphology was successfully synthesized using natural halloysite aluminosilicate nanotubes as a template. The properties of the synthesized material were examined using various techniques. The zeolite prepared with an organic template had a larger surface area and fewer side reactions compared to the one prepared without a template.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Andrey Gavrikov, Alexey S. Loktev, Andrey B. Ilyukhin, Igor E. Mukhin, Mikhail A. Bykov, Anton M. Vorobei, Olga O. Parenago, Kirill A. Cherednichenko, Alexey A. Sadovnikov, Alexey G. Dedov
Summary: This study reports the production of Syngas through partial oxidation of methane (POM) using new SmCoO3-derived catalysts. The catalysts, derived from simple individual precursors modified by supercritical antisolvent precipitation (SAS), exhibit enhanced catalytic activity. The Co/Sm2O3 composites formed in situ during POM do not undergo coking and provide high CO and H2 yields. This research demonstrates the potential of utilizing SAS modification to enhance the catalytic activity of SmCoO3-derived catalysts and suggests the studied composites as convenient systems for further development of POM catalysts.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Organic
V. A. Yarchak, L. A. Kulikov, A. L. Maximov, E. A. Karakhanov
Summary: Porous aromatic framework PAF-30 was modified by introducing complexing groups to synthesize catalyst supports PAF-30-dpa-Mo, PAF-30-dpcl-Mo, and PAF-30-AA-Mo. Various analytical methods were used to characterize the materials, and the catalytic activity was tested in the epoxidation of cyclohexene, 1-hexene, 1-octene, and styrene. The reusability of the catalysts was assessed using cyclohexene epoxidation.
PETROLEUM CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Arina D. D. Filippova, Madina M. M. Sozarukova, Alexander E. E. Baranchikov, Sergey Yu. Kottsov, Kirill A. A. Cherednichenko, Vladimir K. K. Ivanov
Summary: The enzyme-like activity of metal oxide nanoparticles is influenced by factors such as size, shape, surface chemistry, and substrate affinity. The size effect of ceria nanoparticles, a prominent inorganic nanozyme, is still not well understood. This study investigated the peroxidase-like activity of CeO2 nanoparticles with different sizes in different buffer solutions, and found that the size of the nanoparticles had different effects on their activity depending on the buffer solution used. The possible reasons for these differences are discussed.
Article
Chemistry, Multidisciplinary
A. L. Maximov, A. V. Zolotukhina, E. R. Naranov
Summary: A water-soluble catalyst based on ruthenium(0) nanoparticles stabilized with a copolymer of β-cyclodextrin and epichlorohydrin was synthesized and characterized. The catalyst showed activity in the hydrogenation of aromatic and unsaturated compounds, phenols, levulinic acid and its esters. The activity of the catalyst depended on the polarity and size of the substrate, and the β-cyclodextrin moieties acted as protecting groups.
RUSSIAN CHEMICAL BULLETIN
(2023)
Article
Polymer Science
Maria Golubeva, Mariyam Mukhtarova, Alexey Sadovnikov, Anton Maximov
Summary: The annual production of plastic waste is a serious environmental problem, causing significant pollution. This paper proposes recycling polyethylene terephthalate waste bottles into benzene-toluene-xylene fraction using a nickel phosphide catalyst formed during the recycling process. The catalyst was characterized and shown to contain a Ni2P phase. Its activity was studied at various temperatures and pressures, with the highest selectivity at 93%.
Review
Chemistry, Multidisciplinary
Maxim N. Temnikov, Ilya N. Krizhanovskiy, Anton A. Anisimov, Stanislav P. Bedenko, Konstantin I. Dementiev, Irina V. Krylova, Sergey A. Milenin, Anton L. Maksimov, Mikhail P. Egorov, Aziz M. Muzafarov
Summary: This review examines the current state of direct synthesis of alkoxysilanes (DSA), highlighting the main approaches, challenges, and prospects. The plausible reaction mechanism is considered, along with influential factors such as temperature, catalyst type and concentration, promoter additives, and method of carrying out the process. The bibliography includes 232 references.
RUSSIAN CHEMICAL REVIEWS
(2023)
Article
Chemistry, Physical
Andrey Vasilev, Mikhail Efimov, Dmitry Muratov, Petr Chernavskii, Kirill Cherednichenko, Ella Dzidziguri, Galina Karpacheva
Summary: Fe-Co alloy nanoparticles with different sizes have been successfully synthesized using a one-pot method, and their morphology and distribution have been characterized by XRD and TEM. The results show that the size of the nanoparticles is influenced by the nature of the initial polymer and synthesis temperature, and the critical particle size of equiatomic Fe-Co alloy nanoparticles has been determined.
Review
Chemistry, Physical
Kristina Mazurova, Albina Miyassarova, Oleg Eliseev, Valentine Stytsenko, Aleksandr Glotov, Anna Stavitskaya
Summary: The Fischer-Tropsch process is a promising eco-friendly route for obtaining synthetic motor fuels, particularly diesel fuel with high selectivity. Catalysts based on Al2O3 and mesoporous silicates have shown great potential in improving the selectivity of diesel fuel synthesis via Fischer-Tropsch synthesis. The main factors that influence diesel fuel selectivity, such as temperature, pressure, CO:H-2 ratio, active metal particle size, and carrier pore size, are also discussed in this review.
Article
Chemistry, Organic
S. A. Svidersky, O. S. Dement'eva, M. I. Ivantsov, A. A. Grabchak, M. V. Kulikova, A. L. Maximov
Summary: The study investigates the hydrogenation of CO2 using catalysts supported on biochar. Bimetallic iron-cobalt catalysts were found to have better catalytic performance compared to monometallic iron and cobalt catalysts. The optimal performance was achieved with an iron to cobalt ratio of 3:1. The composition and genesis of the active phase in the bimetallic catalyst were identified, and a CO2 hydrogenation mechanism was proposed for the iron-dominated bimetallic catalyst. The use of biochar as a support was found to promote the formation of an active phase favorable for CO2 hydrogenation.
PETROLEUM CHEMISTRY
(2023)
Correction
Chemistry, Organic
V. A. Yarchak, L. A. Kulikov, A. L. Maximov, E. A. Karakhanov
PETROLEUM CHEMISTRY
(2023)
Article
Energy & Fuels
A. N. Karpov, V. V. Fadeev, K. B. Rudyak, A. L. Maksimov, A. V. Tarasov, E. V. Dutlov, P. S. Ivanov, D. V. Borisanov
Summary: This study demonstrates the relationship between mercaptan content in straight-run jet fuel and the operation conditions of column C-1 in the primary oil refining plant. Increasing the temperature at the bottom of column C-1 leads to the decomposition of unstable sulfur compounds, resulting in the removal of mercaptans and hydrogen sulfide with the gasoline fraction in column C-1. This reduces the mercaptan content in straight-run kerosene. A comparison of mercaptan contents in narrow oil fractions and straight-run jet fuel reveals that the latter has higher mercaptan content, which can originate from both the oil itself and the decomposition of unstable sulfur compounds, primarily disulfides.
CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
(2023)
Review
Chemistry, Organic
N. N. Petrukhina, A. L. Maximov
Summary: The prospects of using DME for oil recovery are analyzed based on laboratory and mathematical modeling results. The mechanism and influential factors of DME injection for oil extraction and recovery are discussed. The benefits of injecting DME prior to hydrocarbon gases and carbon dioxide are revealed. Combined technologies involving DME, carbon dioxide, polymer solutions, and steam are analyzed for enhancing oil recovery. The possibility of using DME for oily sludge separation is briefly discussed.
PETROLEUM CHEMISTRY
(2023)
Article
Chemistry, Physical
Gleb Zasypalov, Anna Vutolkina, Vladimir Klimovsky, Egor Abramov, Vladimir Vinokurov, Aleksandr Glotov
Summary: Halloysite nanotubes (HNTs) show promise as a support material for liquid-phase hydrodeoxygenation (HDO) catalysts. Acid etching can enhance their properties and increase catalytic activity and selectivity.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
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)