Article
Environmental Sciences
Amin Kazemi-Beydokhti, Hassan Hassanpour-souderjani
Summary: In order to address environmental problems associated with sulfur compounds, various surface modifications of carbon nanostructures were used to effectively remove aromatic sulfur compounds from hydrocarbon fuels. Acid treatment and polymer coating techniques were employed for physical and chemical surface modifications. The results showed that this surface modification significantly improved the removal of impurities from hydrocarbon fuels.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Chemistry, Physical
Maryam Fayazi, Masoud Ghanei-Motlagh
Summary: The PET-AC/Cu(II)-A beads prepared by cross-linking technology showed high adsorption capacity, reusability, and potential as a desulfurization adsorbent for fuels.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Chemical
Thulisile Nkomzwayo, Liberty L. Mguni, Xinying Liu, Ran Liu, Yali Yao
Summary: Nickel oxide was loaded onto activated carbon to improve the adsorption selectivity in desulfurization of model diesel. The incorporation of NiO significantly enhanced interactions between thiophenic compounds while mitigating competitive interactions between more steric compounds. The improved performance was attributed to increased Lewis acidity and Ni-S acid-base interactions caused by loading NiO on activated carbon.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Musa O. Azeez, Abdulkadir Tanimu, Khalid Alhooshani, Saheed A. Ganiyu
Summary: This study reports the synthesis of mesoporous metal-modified nitrogen doped activated carbon (AC-N-Mo) from date seeds and its application in the selective adsorptive desulfurization of dibenzothiophene (DBT). The AC-N-Mo shows higher adsorption capacity for DBT and exhibits excellent selectivity. The enhanced adsorption performance is attributed to the synergistic effect of nitrogen heteroatom.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Chawan Saiwan Othman, Yousif Mustafa Salih, Luqman Omer Hamasalih
Summary: This study conducted desulfurization experiments on DBT in diesel fuel using different adsorbents, and the hybrid activated charcoal/mixed metal oxide showed the best desulfurization performance. The results showed that under optimized conditions, the adsorption capacity of this adsorbent for DBT was as high as 23.8 mgS.g-1, with a sulfur removal rate of 91.1%.
PETROLEUM SCIENCE AND TECHNOLOGY
(2023)
Article
Acoustics
Satadru Chakrabarty, Prachi Upadhyay, Sankar Chakma
Summary: The study explores the production of ultra-low sulfur liquid fuels through experimental and theoretical investigation, estimating various reactive species formed during the reaction. The oxalate-based technique is efficient in achieving high DBT oxidation levels within a short reaction time. The sonochemical effect accelerates reaction kinetics by generating free radicals and other reactive species during transient cavitation.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Haifa Ben Salah, Paul Nancarrow, Amani Al Othman
Summary: Sulfur dioxide emissions from fossil fuel combustion can have negative impacts on health and the environment. The current hydrodesulfurization method used by refineries has limitations in producing ultralow sulfur diesel at reasonable costs. Ionic liquids have been explored as potential alternatives, but there is limited research on their industrial-scale feasibility and integration into process simulators. This study screened and evaluated 26 commercially available ILs for desulfurization of diesel fuel using COSMO-based models and Aspen Plus, and proposed an optimized process using 1-butyl-3-methylimidazolium thiocyanate that achieves ULSD with minimal loss of the IL.
Article
Chemistry, Physical
Eleni D. Salonikidou, Dimitrios A. Giannakoudakis, Eleni A. Deliyanni, Konstantinos S. Triantafyllidis
Summary: The main objective of this work is to evaluate the efficiency of adsorptive deep desulfurization under ambient conditions and study the effects of competitors in real fuels. By examining various activated carbons and model fuels, the study found that oxidation treatment enhances the adsorption capacity of carbons and can effectively remove sulfur compounds from the model fuel.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Review
Chemistry, Applied
Biswajit Saha, Sundaramurthy Vedachalam, Ajay K. Dalai
Summary: ADS is gaining attention as a low-cost desulfurization technique for petroleum fuels, utilizing adsorbents to remove sulfur compounds. The latest developments focus on enhancing selectivity, stability, reusability, and performance improvement through the incorporation of metals. Selectivity is a key challenge in ADS, and testing with real feedstocks is crucial for commercial application.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Materials Science, Ceramics
Esneyder Puello-Polo, Noemi R. Checca-Huaman, Elvis O. Lopez, Carlos A. T. Toloza, Franklin J. Mendez
Summary: The impact of the synthesis method on the properties of the Al2O3-Ga2O3 sample was investigated. Ga loading resulted in an increase in surface area and pore volume, but a decrease in pore size. XRD analysis confirmed the formation of γ-Al2O3 with Ga atoms incorporated into the structure. The adsorption affinity of the adsorbent was strongest for BT and weakest for DBT.
CERAMICS INTERNATIONAL
(2023)
Article
Energy & Fuels
Liberty L. Mguni, Andrew Ndhlovu, Xinying Liu, Diane Hildebrandt, Yali Yao
Summary: In this study, machine learning methods were used to predict the performance of zeolite for adsorptive desulfurization (ADS) of hydrocarbon fuels. The random forest model showed better predictive performance than the multiple linear regression model. The initial adsorbate concentration and zeolite properties were identified as the key factors influencing ADS activity. This research demonstrates the utility of using machine learning and literature survey data as a cost-effective alternative to experimental ADS zeolite screening.
Review
Chemistry, Multidisciplinary
Musa O. Azeez, Saheed A. Ganiyu
Summary: Sulfur is the most abundant element in crude oil after carbon and hydrogen. The harmful effects of sulfur emissions from transportation fuels on the environment and human well-being are causing concern. In order to reduce these effects, regulatory agencies have set minimum allowable sulfur concentrations in transportation fuels. Adsorption desulfurization (ADS) process using activated carbon (AC) has gained attention due to its simplicity, effectiveness, and environmental friendliness. This review discusses the recent developments in ADS as a complementary process to traditional hydrodesulfurization (HDS) or as a standalone technique using AC.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Energy & Fuels
Nilesh Mohan Khalse, Mahuya De
Summary: This study investigated the effect of nitrogen doping on the adsorptive removal of sulfur compounds from model fuel. Nitrogen doping improved the surface area and pore volume of templated carbon, thereby enhancing the adsorption capacity of sulfur compounds. The adsorption-regeneration cycles showed that the removal efficiency was only lowered by 4-10% after five cycles.
Article
Energy & Fuels
Roselle Y. Mamuad, Angelo Earvin Sy Choi
Summary: The presence of elevated sulfur levels in diesel oil poses significant risks to human health, animals, the environment, vehicles, and infrastructure. Sulfur is a major contributor to particulate matter and emissions, and regulations regarding sulfur content in diesel fuel have become more stringent. Eco-friendly desulfurization techniques like biodesulfurization (BDS) are being explored, but further research is needed to fully understand the mechanism and make it more competitive in industrial applications. Combining BDS with other desulfurization technologies can potentially reduce costs and improve resource allocation.
Article
Chemistry, Multidisciplinary
Amir Behbahani Nezhad, Farzad Bastan, Ahmad Panjehshahin, Mahdi Zamani
Summary: This study evaluates the potential of a commercial molecular sieve for removing sulfur compounds from highly aromatic condensate on an industrial scale. The adsorbent is characterized using various techniques, and dynamic breakthrough experiments show that it effectively removes sulfur compounds from condensate with approximately 900 ppmw S, reducing the sulfur concentration to about 12 ppmw S. The study also focuses on finding a desorption method to prevent a sulfur concentration peak in tail gas.
Article
Agricultural Engineering
Fan Wang, Chenglong Wen, Mohong Lu, Peng Zhang, Jie Zhu, Mingshi Li, Yuhua Shan, Chunshan Song
Summary: Mo2N@NC/SBA-15 catalysts with high stability and dispersion were prepared using MoCl5 and dicyandiamide as Mo and C/N sources, respectively. During the carbonization process under H2 at an elevated temperature, Mo2N was formed in situ while dicyandiamide was converted to N-doped carbon (NC). The presence of N-doped carbon species around Mo2N NPs inhibited the aggregation of Mo2N NPs, resulting in the generation of ultrafine Mo2N nanoparticles. Mo2N@NC/SBA-15 catalysts exhibited high hydro-deoxygenation activity and aromatic compound selectivity. The selectivity towards aromatic products reached 92% and guaiacol conversion reached 99% at 380 degrees C and 2 MPa.
BIOMASS & BIOENERGY
(2023)
Article
Chemistry, Applied
Debjyoti Ray, Pengxian Ye, Jimmy C. Yu, Chunshan Song
Summary: The conversion of carbon dioxide into value-added products is important for mitigating the greenhouse effect and reducing the reliance on fossil fuels. Non-thermal plasma approach shows potential as a sustainable and efficient alternative to traditional thermocatalytic routes. The combination of a catalyst and non-thermal plasma has been found to improve the selectivity and conversion of CO2 into desired products.
Article
Engineering, Environmental
Jiaming Wu, Keyan Li, Siyu Yang, Chunshan Song, Xinwen Guo
Summary: In this study, a BiOBr/Bi2WO6 S-scheme heterojunction with intimate interfacial contact was synthesized by a one-step hydrothermal method. The nanoflower morphology and the concentration of surface oxygen vacancies (SOVs) were regulated to enhance CO2 capture ability and charge transfer efficiency. The heterojunction exhibited excellent photocatalytic CO2 reduction activity without sacrificial agent and cocatalyst, surpassing most reported photocatalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Mengjiao Pei, Keyan Li, Xiangyang Li, Chunshan Song, Xinwen Guo
Summary: Iron phthalocyanine/carbon nitride (FePc/CN) hetero-junction nanosheets were prepared using calcination method and exhibited excellent activation of peroxydisulfate (PDS) for tetracycline (TC) degradation under visible light. The FePc/CN-6 heterojunction showed significant improvement in degradation rate compared to CN and FePc due to the synergistic effect of photocatalysis and PDS activation. The construction of intimate interface via pi-pi conjugation enhanced charge separation and transfer, resulting in enhanced PDS activation and photodegradation.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Energy & Fuels
Jiamin Huang, Guanghui Zhang, Mingrui Wang, Jie Zhu, Fanshu Ding, Chunshan Song, Xinwen Guo
Summary: In this study, a tandem catalyst consisting of Mn-Cu-K modified iron carbide and CuZnAlZr catalyst was reported to enhance the catalytic performance and increase the selectivity of alcohols. By using powder mixing method and a mass ratio of 1:1, a higher selectivity of alcohols was achieved.
FRONTIERS IN ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Xiaoyu He, Xutao Gao, Xiao Chen, Shen Hu, Fangchang Tan, Yujie Xiong, Ran Long, Min Liu, Edmund C. M. Tse, Fei Wei, Hong Yang, Jungang Hou, Chunshan Song, Xinwen Guo
Summary: In this work, a new two-dimensional Fe/Ti-BPDC MOF photocatalyst with atomically dispersed Fe sites was synthesized using a dual-benefit design strategy. This catalyst exhibited excellent catalytic performance in visible-light-driven CO2 conversion to HCOOH, achieving a high yield of 703.9 μmol g-1 h-1 with a selectivity greater than 99.7%. The catalyst achieved "dual-optimization" by sustaining the supply of photogenerated electrons and effectively activating CO2. It provided a high proportion of effective photogenerated electrons through a unique electron transfer mechanism and facilitated fast CO2 activation through strong O/Fe affinity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Energy & Fuels
Pawnprapa Pitakjakpipop, Chunshan Song
Summary: This study examined the effects of different supports on the activity and selectivity of nickel phosphide catalysts in anisole hydrodeoxygenation. Ni2P/CeO2 showed the highest activity among the synthesized supports and common materials. Ni2P/TiO2-CeO2 exhibited superior reactivity and higher cyclohexane selectivity compared to Ni2P/CeO2. The choice of support also influenced the product distributions and HDO pathways. Both Ni2P/CeO2 and Ni2P/TiO2-CeO2 are promising catalysts for tunable production of benzene and cyclohexane, respectively.
Article
Energy & Fuels
Ajuan Zhou, Jiaxing Zhang, Hong Yang, Shujie Shang, Anfeng Zhang, Chunshan Song, Xinwen Guo
Summary: This study explores the rational design of Pt/ZSM-5 bifunctional catalysts for alkylating benzene with ethane. It reveals that the Si/Al ratio of ZSM-5 regulates the dispersion and particle size of Pt, and the interaction between H+ of ZSM-5 and Pt plays a crucial role in controlling the product distribution in the reaction.
Article
Chemistry, Applied
Yu Tang, Yi Cui, Gaosheng Ren, Ke Ma, Xiaoxun Ma, Chengyi Dai, Chunshan Song
Summary: In this study, copper-mordenite zeolite (Cu-MOR) and non-thermal plasma were used to efficiently convert methane and water into methanol and hydrogen at low temperature without CO2 formation. The reaction mechanism involves the excitation of methane under plasma conditions, followed by adsorption on the Cu-2-(μ-O)(2+) active sites and facilitated formation of methanol through co-adsorption of water. However, prolonged reaction time led to the reduction of Cu-2-(μ-O)(2+) and carbon deposition on the catalyst surface, causing a decrease in catalytic activity. Nevertheless, the presence of oxygen rejuvenated the catalyst and prevented carbon deposition, maintaining the catalytic activity.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Engineering, Chemical
Fei Yuan, Guanghui Zhang, Mingrui Wang, Jie Zhu, Miao Zhang, Fanshu Ding, Zening Cheng, Chunshan Song, Xinwen Guo
Summary: This study reports a series of Fe-Co bimetallic catalysts derived from Fe-Co-Mg layered double hydroxides (LDHs) with different Fe/Co ratios for converting CO2 to light olefins. The best catalyst, FeCo-9:1-LDH, showed a high selectivity of C-2-C-4(=) over 36% at a CO2 conversion higher than 40%. The catalyst can be carburized to Co-modified iron carbide (Fe5C2), which exhibits higher CO2 conversion and C-2-C-4(=) selectivity compared to the catalyst prepared by impregnating Co and Fe onto MgO support.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Energy & Fuels
Mengmeng Zhang, Shuang Wang, Xiaowa Nie, Fanshu Ding, Chunshan Song, Xinwen Guo
Summary: Converting CO2 into chemicals and fuels is an effective solution to address CO2 emissions. This study investigated the reaction mechanism of hydrocarbons formation from CO2 hydrogenation on CHI-Fe5C2 (111) surface using DFT calculations. It was found that introducing a second transition metal could effectively tune the product selectivity.
Article
Chemistry, Applied
Jing Yue, Junjie Li, Min Liu, Wen Liu, Xiujie Li, Sujuan Xie, Chunshan Song, Xinwen Guo, Xiangxue Zhu
Summary: In this study, high-silica MFI zeolite was successfully prepared using a low-temperature crystallization method and seed-directed and C2H5OH filling techniques. The synthetic gel was purified to exclude impurity phases, and well-crystallized ZSM-5 samples with controllable Si/Al ratios and uniform particle sizes were obtained. The obtained high-silica MFI zeolite exhibited superior catalytic stability compared to the conventional sample during methanol-to-propylene and n-butene cracking reactions.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaoyu He, Yujia Ding, Zhennan Huang, Min Liu, Miaofang Chi, Zili Wu, Carlo U. Segre, Chunshan Song, Xiang Wang, Xinwen Guo
Summary: A photocatalyst TiO2/Ti-BPDC-Pt with a self-grown TiO2/Ti-MOF heterojunction, selectively anchored high-density Pt single-atomic cocatalysts on Ti-BPDC, achieves photocatalytic hydrogen evolution. The intimate heterojunction efficiently separates electrons and holes in a direct Z-scheme, and Pt is selectively anchored on Ti-BPDC in the form of single atoms. The tailored TiO2/Ti-BPDC-Pt exhibits significantly enhanced activity compared to other TiO2- or MOF-based catalysts, showing the importance of the balance of two simultaneously exposed domains of heterojunctions.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Jiaxing Zhang, Ajuan Zhou, Kaivalya Gawande, Guanxing Li, Shujie Shang, Chengyi Dai, Wei Fan, Yu Han, Chunshan Song, Limin Ren, Anfeng Zhang, Xinwen Guo
Summary: ZSM-5 nanosheets show promise as catalysts for diffusion-controlled catalytic reactions. In the alkylation of benzene with methanol, nanosheets with a thickness of 30 nm exhibit higher benzene conversion, xylene selectivity, and methyl selectivity, as well as a longer lifetime and lower ethylbenzene selectivity compared to nanosheets with a thickness of 300 nm. This is attributed to the shorter straight channel length, larger specific surface area, and increased mesopore volume of the nanosheets, which enhance the diffusion of reactants and products and decrease coke formation.
Article
Energy & Fuels
Jiaxing Zhang, Fei Yuan, Anfeng Zhang, Guanghui Zhang, Limin Ren, Chunshan Song, Xinwen Guo
Summary: This study developed a tandem catalyst Fe-Co/HZSM-5 for the direct conversion of CO2 into gasoline fuel. The use of HZSM-5 nanosheets with short diffusion channels and appropriate acid property improved the selectivity and yield of gasoline fuel, while preventing catalyst deactivation.
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)
