Article
Energy & Fuels
N. Asikin-Mijan, G. AbdulKareem-Alsultan, M. S. Mastuli, A. Salmiaton, Mohamad Azuwa Mohamed, H. V. Lee, Y. H. Taufiq-Yap
Summary: Bifunctional Co-W catalysts were prepared for the catalytic deoxygenation-cracking of tung oil to produce jet fuel fractions. The CoW/SA catalyst showed the highest activity and outperformed the monometallic Co and W catalysts. It was found that excessively high metal dosages led to over cracking, while lower metal dosages effectively controlled over cracking. The resulting TO-jet fuel had excellent physicochemical properties and combustion characteristics.
Article
Chemistry, Analytical
M. Safa-Gamal, N. Asikin-Mijan, Mahashanon Arumugam, Wan Nor Adira Wan Khalit, I. Nur Azreena, Fatma S. Hafez, Y. H. Taufiq-Yap
Summary: Activated carbon-supported Co-Ag catalysts showed high deoxygenation efficiency and conversion of fatty acids to hydrocarbon liquid products, with a synergistic effect between the active metals and activated carbon support significantly facilitating the selective deoxygenation pathway.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2021)
Article
Chemistry, Physical
Biel Martinez, Francesc Vines, Peter H. McBreen, Francesc Illas
Summary: There is evidence of potential overlap between olefin metathesis and deoxygenation chemistries on molybdenum carbide catalysts, where ketones and aldehydes can selectively undergo deoxygenation on Mo2C to form surface alkylidenes. Reports have shown increased olefin metathesis activity with the formation of molybdenum carbide or oxycarbide on pre-treated molybdenum oxide catalysts. A DFT study was conducted on the carbonyl bond scission step of selected aldehydes and ketones to form surface alkylidenes on Mo2C, and experimental reflectance infrared data was analyzed for the interaction of cyclopentanone and acetaldehyde with a polycrystalline bulk hexagonal Mo2C sample.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Yuliya S. Yapontseva, Valeriy S. Kublanovsky, Tetyana Maltseva, Oksana Yu Gorobets, Rostislav S. Gerasimenko, Yuri Gorobets, Yuri N. Troshchenkov, Oleksii A. Vyshnevskyi
Summary: This paper presents a study on the electrodeposition of binary CoRe alloys from citrate and citrate-pyrophosphate electrolytes under the conditions of natural and forced convection caused by mechanical stirring and when a constant magnetic field (CMF) is applied. It is shown that a change in the complex composition of electrolytes can significantly change the chemical composition and properties of the obtained coatings. The use of CMF can improve the quality of electrolytic CoRe alloys and obtain coatings with properties close to those of hard magnetic materials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Thermodynamics
Mohamad Azri Sukiran, Wan Mohd Ashri Wan Daud, Faisal Abnisa, Abu Bakar Nasrin, Astimar Abdul Aziz, Soh Kheang Loh
Summary: The study investigated the effects of temperature and retention time on EFB torrefaction, revealing that higher temperatures and longer retention times led to lower solid yields but higher liquid and gaseous yields. Torrefied EFB showed increased carbon content, decreased oxygen content, improved calorific value, and reduced chlorine content. Thermal degradation of hemicellulose was observed during torrefaction, with oxygen removal migrating to liquid and gaseous products such as water, CO2, CO, and organic compounds. The findings contribute to biomass resource database for future bioenergy applications.
Article
Materials Science, Multidisciplinary
Douglas E. Burkes, Ian J. Schwerdt, Tanja K. Huber, Harald Breitkreutz, Christian Reiter, Winfried Petry, Jason L. Schulthess, Andrew M. Casella, Amanda J. Casella, Edgar C. Buck, Karl N. Pool, Paul J. MacFarlan, Matthew K. Edwards, Frances N. Smith
Summary: Measurements of physical and thermal properties were conducted on irradiated U-Mo alloy monolithic fuel samples with a Zr diffusion barrier clad in Al alloy 6061. The study provides insights into the behavior of U-Mo fuel under high performance research reactor irradiation conditions, showing a decrease in density with increasing fission density and an increase in thermal conductivity with temperature. The findings suggest that fission gas swelling may be a key factor influencing the deviation between model calculations and measurements.
JOURNAL OF NUCLEAR MATERIALS
(2021)
Article
Chemistry, Organic
Sobi Asako, Takafumi Kobayashi, Seina Ishihara, Kazuhiko Takai
Summary: A simple catalytic system composed of Mo(0) and ortho-quinone as catalyst, and phosphine as a reductant, has been developed for the synthesis of pyridoisoindoles and pyridoisoindolium salts through deoxygenation of carbonyl compounds.
ASIAN JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Engineering, Environmental
G. Abdulkareem-Alsultan, N. Asikin-Mijan, Laith K. Obeas, Robiah Yunus, Siti Zulaika Razali, Aminul Islam, Yun Hin Taufiq-Yap
Summary: This study explores the deoxygenation of sludge palm oil using various MnCo supported AC catalysts, with MnO0.5CoO0.5/AC showing the ability to enhance heavy product yields while also leading to catalyst deactivation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
Neha Antil, Ajay Kumar, Naved Akhtar, Rajashree Newar, Wahida Begum, Kuntal Manna
Summary: A heterogeneous catalyst based on aluminum metal-organic framework and cobalt(II) hydride was reported for selective and efficient deoxygenation of a wide range of carbonyls and alcohols. The catalyst can be recycled and operates under ambient hydrogen pressure.
INORGANIC CHEMISTRY
(2021)
Article
Energy & Fuels
Xianqing Zhu, Man Liu, Qintao Sun, Jingjing Ma, Ao Xia, Yun Huang, Xun Zhu, Qiang Liao
Summary: The degradative solvent extraction (DSE) method can convert lignocellulosic biomass waste into high-quality extracts, with cellulose playing the major role. Significant interactions occur between cellulose/lignin and hemicellulose/lignin, while the interaction between cellulose and hemicellulose is relatively small. These interactions facilitate the thermal degradation and decarboxylation of lignin but inhibit the aromatization reaction.
Article
Chemistry, Multidisciplinary
Josue Alves Melo, Mirele Santana de Sa, Ainara Moral, Fernando Bimbela, Luis M. Gandia, Alberto Wisniewski
Summary: Renewable hydrocarbons were produced from waste cottonseed oil through micropyrolysis, and catalytic upgrading of the pyrolysis vapors was investigated using various catalysts. Results showed that Mo-Co/gamma-Al2O3 catalyst had the highest conversion yields into total renewable hydrocarbons, indicating its effectiveness in the process.
Article
Chemistry, Organic
Qiaowen Liu, Feng Han, Hongfeng Zhuang, Tong Zhang, Na Ji, Chengxia Miao
Summary: Direct metal-free deoxygenation of highly active allylic alcohols was achieved through catalysis by a Bronsted acid, avoiding tedious reaction steps and metal contamination. The system was found to be mainly suitable for aromatic allylic alcohols, with excellent yields obtained via gram-scale synthesis.
ORGANIC & BIOMOLECULAR CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Yajing Yang, Shuai Huang, Yanduo Ma, Jie Yi, Yuchun Jiang, Xiaohong Chang, Quan Li
Summary: A series of liquid and photoliquefiable azobenzene derivatives have been synthesized for molecular solar thermal fuels. These derivatives exhibit high isomerization, fast isomerization rate, long half-life, appropriate energy storage density, and solvent-free charging and discharging process. The photoliquefied azo derivatives can undergo isomerization upon UV light irradiation at low temperatures, storing both the phase transition enthalpy and isomerization enthalpy, and can release heat under blue light manipulation.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Multidisciplinary
Nguyen Van Hoa, Pham Anh Dat, Nguyen Huu Nghia
Summary: Transition metal chalcogenides have been widely studied as active electrode materials, and in this study, a hierarchical Co-Mo-S nanosheets electrode was successfully fabricated on nickel foam using a facile hydrothermal method under microwave irradiation. The electrode exhibited high specific capacitance, excellent cycling stability, and was further applied in an asymmetric supercapacitor with activated carbon, showing high capacitance and energy density.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Engineering, Environmental
Rungnapa Kaewmeesri, Jeeranan Nonkumwong, Worapon Kiatkittipong, Navadol Laosiripojana, Kajornsak Faungnawakij
Summary: A series of SAPO-11-supported monometallic Ni, Co and bimetallic NiCo catalysts were prepared and tested for deoxygenation of palm oil-derived FAMEs. It was found that the Co/Ni/SAPO-11 catalyst, with Co surface enrichment, exhibited the highest yield of diesel range fuel. The study showed that the synergy through Ni-Co alloying is an efficient approach to enhance the deoxygenation of palm oil-derived FAMEs to diesel-like hydrocarbon fuels.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Yun-Jeong Gu, Ju-Hwan Kim, Won-Jun Jang, Dae-Woon Jeong
Summary: CeO2 supports were synthesized using different methods and nano-sized CeO2 supports were prepared through pre-calcination. Among the prepared catalysts, Cu/CeO2-CHC showed the highest CO conversion due to its highest Cu dispersion and oxygen storage capacity.
Article
Energy & Fuels
Kyung-Won Jeon, Ho-Ryong Park, Yeol-Lim Lee, Jee-Eun Kim, Won-Jun Jang, Jae-Oh Shim, Hyun-Seog Roh
Summary: In this study, a Ni/MgO-Al2O3 catalyst was developed for the production of green diesel from non-edible fatty acids. Among the prepared catalysts, the 20% Ni/MG70 catalyst exhibited the best deoxygenation performance due to its higher number of Ni active sites, easier reducibility, and appropriate acidity.
Article
Chemistry, Applied
Hui-Ju Byeon, Kyung-Won Jeon, Hak-Min Kim, Yong-Hee Lee, Yu-Seung Heo, Min-Ju Park, Dae-Woon Jeong
Summary: In this study, alkali and alkaline earth metal-promoted Ni-CeO2 catalysts were developed for the water-gas shift reaction to increase hydrogen production by suppressing methanation. Various characterization techniques were employed to determine the relationship between catalyst activity and properties. The results showed that the promoted Ni-CeO2 catalysts effectively suppressed methanation, with the Ca/NiCeO2 catalyst exhibiting the highest activity and stability due to its high oxygen storage capacity.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Engineering, Environmental
Min-Ju Park, Hak-Min Kim, Yong-Hee Lee, Kyung-Won Jeon, Dae-Woon Jeong
Summary: This study optimized hydrogen production using food waste by investigating the effect of agitator types and catalysts. Results showed that the reactor equipped with a hydrofoil agitator produced more hydrogen, and the MgO-promoted Ni-CeZrO2 catalyst demonstrated stable performance in hydrogen production.
Article
Chemistry, Multidisciplinary
Kyung-Won Jeon, Hui-Ju Byeon, Hak-Min Kim, Bomin Choe, Chang-Hoon Jeong, Tae-Yeol Choi, Wangyun Won, Dae-Woon Jeong
Summary: This study compared different catalysts for the high temperature water gas shift (WGS) reaction to produce hydrogen using waste-derived syn gas. The Co-Nb-CeO2 catalyst, prepared using coprecipitation method, showed the highest activity due to its high surface area and oxygen storage capacity. Technoeconomic analysis and environmental impact assessment showed that the Co-Nb-CeO2 catalyst synthesized using coprecipitation is a cost-effective and eco-friendly catalyst with high activity.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Engineering, Environmental
Faisal Zafar, Rong Zhao, Mansoor Ali, Yong Min Park, Hyun-Seog Roh, Xinhua Gao, Jumei Tian, Jong Wook Bae
Summary: The synergy effects of In2O3 promoter on ordered mesoporous Cu/Al2O3 structures in CO2 hydrogenation to oxygenates were investigated in this study. It was found that the smaller In2O3 particles interacted contiguously with Cu-Al2O3 matrices, enhancing CO2 activation and stabilizing Cu nanoparticles. The optimized InCu/mAl(1) ratio of 0.01 showed the highest catalytic activity, with accelerated CO2 dissociation and formation of formate intermediates. However, excessive In2O3 hindered the catalytic activity and increased the selectivity of oxygenates.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Kyoung-Jin Kim, Kyung-Won Jeon, Ga-Ram Hong, Byong-Hun Jeon, Jong Wook Bae, Yeol-Lim Lee, Hyun-Seog Roh
Summary: This study systematically investigated the effect of CeO2/ZrO2 ratio on the sulfur-tolerance of high temperature shift catalysts using waste derived synthesis gas. The results showed that the oxygen storage capacity of the catalysts plays a crucial role in determining the sulfur tolerance, and is related to the regeneration rate and Pt dispersion.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Review
Chemistry, Physical
Seon-Yong Ahn, Won-Jun Jang, Jae-Oh Shim, Byong-Hun Jeon, Hyun-Seog Roh
Summary: Reducing carbon dioxide emissions is a major global challenge in energy and environmental fields. Catalysis plays a crucial role in addressing this challenge by developing new technologies and improving conventional ones. The review focuses on the extended applications of oxygen storage materials in high-value-added chemicals and their use in carbon-neutral automotive catalysis. The study emphasizes the physico-chemical properties that are closely related to oxygen storage capacity.
CATALYSIS REVIEWS-SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Environmental
Kyung-Won Jeon, Jin Koo Kim, Beom-Jun Kim, Won-Jun Jang, Yun Chan Kang, Hyun-Seog Roh
Summary: The study demonstrates that Ni/Al2O3 yolk-shell catalysts have high resistance against alkali poisoning and exhibit excellent carbon deposition resistance. Among them, the Ni/pys-Al2O3 catalyst shows the highest methane conversion and the best stability at a high gas hourly space velocity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Byung Sun Yoon, Kyoung-Jin Kim, Eui Hyun Cho, Ho-Ryong Park, Hyun-Seog Roh, Chang Hyun Ko
Summary: Iron-chromium/SBA-15 catalysts for high-temperature water-gas shift reactions were synthesized using the surfactant-assisted melt-infiltration method, achieving high dispersion and loading without a liquid solution. The addition of Span60 surfactant enhanced the dispersion of Fe3O4 particles and facilitated their infiltrations into the mesopores of SBA-15 support. The Fe-Cr catalyst prepared via SAMI exhibited improved performance and stability for the HTS reaction compared to the catalyst without surfactant.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Seon-Yong Ahn, Kyoung-Jin Kim, Beom-Jun Kim, Jae-Oh Shim, Won-Jun Jang, Hyun-Seog Roh
Summary: This study investigated the active sites and structure-sensitivity of Cu-ZnO-Al2O3 (CZA) catalysts in the water-gas shift (WGS) reaction. CZA catalysts with different Cu contents were synthesized using a homogeneous one-step coprecipitation method. The Cu content affected the number of active Cu sites and had a close relationship with WGS activity. Turnover frequency (TOF) values were independent of Cu dispersion, suggesting that the CZA catalyst is structure-insensitive in WGS. The ratio of surface Cu+ species also strongly influenced the activity of the CZA catalyst. TOF based on the total active Cu species remained constant, but CO conversion increased linearly with the number of surface Cu+ species.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Chemistry, Physical
Ru-Ri Lee, I-Jeong Jeon, Won-Jun Jang, Hyun-Seog Roh, Jae-Oh Shim
Summary: Hydrogen is primarily produced from fossil fuels through steam reforming, but alternative methods using waste as a resource are gaining attention. The water-gas shift reaction is crucial for hydrogen production from waste, but a suitable catalyst is needed due to the higher CO concentration in waste-derived syngas. This study reviews the development of catalysts for waste-derived hydrogen production and provides essential knowledge for catalyst design.
Article
Chemistry, Physical
Sung June Cho, Chang Hyun Ko, Chanho Pak
Summary: In this study, the structure of platinum nanoparticles encapsulated in a Y zeolite's supercage was analyzed using the Wavelet method. XAFS data collected showed that hydrogen adsorption caused relaxation in the structure of the nanoparticles, resulting in a decrease in Pt-Pt distance and Debye-Waller factor. This structural change aligns with density functional theory calculations for Pt13 nanoparticles.
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)