Article
Energy & Fuels
Filipa Lima, Luis C. Branco, Armando J. D. Silvestre, Isabel M. Marrucho
Summary: This review article presents the use of deep eutectic solvents (DES) in removing sulfur pollutants from transportation fuels, highlighting the urgent need to reduce the impact of fossil fuels impurities on outdoor air pollution. A comparative evaluation with Ionic Liquids (ILs) shows that DES has advantages in extracting sulfur contaminants, but the efficiency gap between simulated matrices and real fuels is still a challenge to be addressed.
Article
Engineering, Chemical
Fei Wang, Yefeng Liu, Ying Lv, Jun Ren, Ruixin Wang, Weizhou Jiao
Summary: In this study, tungsten carbide coated with an ultrathin carbon layer was utilized as an efficient and stable oxidative desulfurization catalyst. The catalyst showed remarkable performance in desulfurization under mild conditions and could be easily regenerated and recycled without loss of performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Review
Energy & Fuels
Alireza Hosseini, Ali Khoshsima, Mazaher Sabzi, Ata Rostam
Summary: Fuel oil desulfurization is a challenging process in petroleum refineries due to economic considerations. Ionic liquids have been introduced as a beneficial alternative to traditional organic solvents. This review examines the application of ionic liquids in different desulfurization processes and reviews the governing factors in detail.
Article
Energy & Fuels
Jakob Albert, Michael Huber, Jens Tochtermann, Sebastian Eller, Wolfgang Korth, Andreas Jess
Summary: Extractive catalytic oxidative deoxygenation (ECODO) is used to remove organic oxygen from fuels, making renewable fuels more stable and efficient. Aqueous heteropolyacid catalyst solution is used to completely oxidize compounds like cresol and furan under oxygen. The oxidation products are separated as CO2 or CO in the gas phase, or as water-soluble organic acids in the three-phase process. Tuning the reaction conditions and optimizing the catalyst loading drastically increase the conversion of stable dibenzofuran (DBF).
Article
Engineering, Chemical
Swapnil Dharaskar, Komal Desai, Kiran Kumar Tadi, Mika Sillanpaa
Summary: Sulfur reduction from fuels is crucial for environmental rules and petroleum refining. Extractive desulfurization using phosphonium ionic liquids, particularly [THTDP]Br, is effective for achieving low sulfur content. Various analytical techniques were employed to study the molecular confirmations and physical properties of [THTDP]Br, revealing its efficiency in removing sulfur compounds and ability to be recycled for multiple cycles.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Environmental Sciences
Shichun Lin, Sue-Faye Ng, Wee-Jun Ong
Summary: This study analyzed the environmental impacts of the oxidative desulfurization (ODS) process catalyzed by metal-free reduced graphene oxide (rGO) through life cycle assessment (LCA). The results showed that rGO production and ODS process had significant impacts on human health, ecosystem, and resources.
ENVIRONMENTAL POLLUTION
(2021)
Article
Energy & Fuels
Moslem Ahmadian, Mansoor Anbia
Summary: In this study, mesoporous silica SBA-15 and MOR-SBA-15 supported catalysts were successfully fabricated and characterized. The catalytic performance of the synthesized catalysts for oxidative desulfurization was investigated, and the factors affecting the desulfurization process were evaluated. The results showed that the Cu/MOR-SBA-15 catalyst exhibited excellent desulfurization activity and reusability.
Article
Chemistry, Inorganic & Nuclear
Ning Yang, Linjie Lu, Linhua Zhu, Peiwen Wu, Duanjian Tao, Xiaowei Li, Jiahong Gong, Linlin Chen, Yanhong Chao, Wenshuai Zhu
Summary: The novel PIL HPMo@ZIF-8-PIL shows efficient removal of dibenzothiophene sulfur in model oil under room temperature using hydrogen peroxide as the catalyst and oxidant. It promotes dispersion of catalytically active sites and retains good liquidity and excellent extraction ability of ionic liquids. The successful preservation of porosity increases the probability of contact between the oxidant and active sites, enhancing desulfurization performance.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Ilkay Gumus, Yasar Karatas, Mehmet Gulcan
Summary: In this work, a new composite material MoOx/MIL-101(Cr) was successfully synthesized for the oxidative desulfurization (ODS) process to remove refractory S-compounds (RSCs) from fuels. The catalyst exhibited remarkable catalytic activity and stability, and the ODS efficiency was found to be related to the formation of Mo5+ species and electron transfer to Mo6+ ions from Lewis acid sites. The study provided insights into the reaction mechanism and confirmed the usefulness of MoOx/MIL-101(Cr) in ODS.
MOLECULAR CATALYSIS
(2022)
Article
Chemistry, Applied
S. Houda, C. Lancelot, P. Blanchard, L. Poinel, C. Lamonier
Summary: The study demonstrated the efficiency of oxidative desulfurization (ODS) on marine fuels using H2O2 as the oxidizing agent with a low oxidant to sulfur ratio for economic and environmental reasons. Ultrasound assisted ODS (UAOD) was found to enhance conversions and sulfur removal significantly, especially for fuels with lower viscosity, showing great potential for industrial applications.
Review
Engineering, Chemical
Rishabh Anand Omar, Nishith Verma
Summary: This review focuses on the adsorptive desulfurization of liquid fuels and the attempts made to regenerate the spent materials. It suggests that bacterial regeneration using the same bacteria used for desulfurization shows promise.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Masomeh Aghmasheh, Mohammad Ali Rezvani, Vahab Jafarian, Zahra Aghasadeghi
Summary: Efficient and reusable oxidative desulfurization nanocatalysts are highly desired for environmental protection and human health. In this study, a new heterogeneous nanocatalyst (V-SPM@PANI@CH) was synthesized by immobilizing vanadium-substituted phosphomolybdate clusters on the surface of polyaniline and chitosan polymers. The nanocatalyst exhibited excellent catalytic performance in the extractive and catalytic oxidation desulfurization of real and thiophenic model gasoline, achieving a sulfur removal efficiency of 96%. The study also demonstrated the high catalytic activity and stability of the nanocatalyst during five cycles.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Bao Wang, Lihua Kang, Mingyuan Zhu
Summary: A hierarchical porous carbon material (HPC) with ultra-high specific surface area was synthesized using sisal fiber (SF) as a precursor, and HPW catalyst was successfully immobilized on the support of SF-HPC. Characterization showed that the material had high surface area, micropores, and macropores, with HPW well-dispersed on the surface, leading to excellent catalytic performance. The desulfurization rate reached nearly 100% under optimal conditions and remained above 94% after four cycles.
Article
Engineering, Environmental
Junzhen Guo, Liang Chu, Haibin Yang, Zhi Huang, Mu Yang, Ge Wang
Summary: In this study, an amphiphilic Mo/HNT/S nanoreactor was developed by immobilizing MoOx on the internal surface of halloysite nanotubes (HNT) and modifying the external surface with organosilanes. The catalyst exhibited high activity for oxidative desulfurization and showed improved stability over multiple cycles. The amphiphilic nature of the nanoreactor allowed for enhanced dispersion in the oil phase and formation of a concentrated microenvironment for the reactants and reactive oxygen species. This catalytic system eliminates the need for solvent extraction in the desulfurization process, making it a promising candidate for large-scale industrial applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Mohanad Jebar Nehab, Farhad Salimi, Akbar Mohammadidoust
Summary: Decreasing sulfur structures and achieving green fuel is an appropriate approach for environmental protection. In this study, a graphitic-carbon-nitride catalyst modified by iron (III) oxide was introduced and used to remove dibenzothiophene (DBT) from model oil and real oils. The catalyst showed a high removal efficiency for DBT in both model oil (91%) and real oils (73%, 83.5%, and 84.7% for gasoline, kerosene, and diesel oil, respectively). Kinetic models were developed to describe the process and a mechanism for converting DBT to DBTO2 was proposed. The catalyst exhibited good performance, reusability for five cycles, and was cost-effective for cleaning liquid fuels.
CHEMICAL ENGINEERING SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Shi-Ying Cao, Fan Ye, Ni-Ni Zhang, Yang-Long Guo, Yun Guo, Li Wang, Sheng Dai, Wang-Cheng Zhan
Summary: This study demonstrates the successful design of a bimetallic Ru-Pt catalyst for methane oxidation, which exhibits excellent stability and outstanding performance. The RuO2 species provides additional oxygen species to facilitate the redox cycle of the PtOx species, enhancing the catalyst's activity.
Article
Chemistry, Physical
Bingjie Ding, Yongjun Jiang, Beibei Xu, Sheng Dai, Honghui Gong, Xiuge Zhao, Yefeng Yao, Pengfei An, Zhenshan Hou
Summary: This study presents a facile methodology to construct single Nb site catalysts with high catalytic activity for the selective oxidation of aniline. By employing alpha-hydroxy carboxylic acid-functionalized cotton fiber as a sustainable supporting material, the catalysts showed nearly 100% utilization efficiency of H2O2 under mild conditions. The use of continuous-flow conditions also afforded significant benefits compared to batch processes. This work provides an economical and environmentally friendly approach for the construction of single-site catalysts for oxidation catalysis.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Dinesh Bhalothia, Da-Wei Lee, Guan-Ping Jhao, Hsiao-Yun Liu, Yanyan Jia, Sheng Dai, Kuan-Wen Wang, Tsan-Yao Chen
Summary: This study introduces a ZnO supported Ag nanocatalyst for efficient electrochemical CO2 reduction, with high selectivity and stability. The synergistic collaboration between ZnO and Ag was found to be crucial for enhancing CO selectivity.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Qingpo Peng, Yongjun Jiang, Bei-Bei Xu, Xiuge Zhao, Sheng Dai, Ye-Feng Yao, Zhenshan Hou
Summary: A novel dodecanuclear Zr oxo cluster [Zr6O4(OH)(4) (HSCH2CH2COO)(12)](2) (ZrO-SH-10) with Lewis acid and Bronsted acid sites was constructed at room temperature. The resulting discrete molecular catalyst ZrO-SO3H, stabilized by a shell of carboxylate ligands, exhibited excellent activity and recyclability for the cascade conversion of furfural to alkyl levulinate in n-butanol. The reaction mechanism was proposed based on the studies on reaction kinetics and isotope tracking.
Article
Engineering, Environmental
Nini Zhang, Yanglong Guo, Yun Guo, Qiguang Dai, Li Wang, Sheng Dai, Wangcheng Zhan
Summary: CeO2-based catalysts with optimal redox-acidity were successfully prepared by introducing sulfate and RuOx simultaneously. The catalyst showed excellent oxidation activity and stability for the catalytic combustion of chlorinated VOCs, while inhibiting the formation of chlorinated byproducts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Xuan Tang, Ming Wang, Bingjing Tang, Yunkun Zhao, Wangcheng Zhan, Yanglong Guo, Li Wang, Sheng Dai, Yun Guo
Summary: Realizing the potential benefits of nanoscale metal catalysts requires controlling their local environment and achieving highly dispersed active sites. In this study, we developed a catalyst synthesis route that targets the deposition of Pd near highly dispersed ZrOx on ZSM-5 zeolite using electrostatic interactions. The heteroatom Pd-ZrOx species formed in the zeolite catalysts were characterized by various techniques, revealing higher dispersion and lower oxygen coordination of Pd species, which enhanced the catalytic performance with a lower temperature for CH4 conversion. Our work provides a strategy to engineer highly dispersed noble metal species and regulate the local environment for tuning catalytic properties.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Engineering, Chemical
Fengxue Zhang, Yongjun Jiang, Sheng Dai, Xinjia Wei, Yuan Ma, Huiying Liao, Yuxi Qin, Qingpo Peng, Xiuge Zhao, Zhenshan Hou
Summary: Zirconium-phosphate-supported platinum catalysts were prepared and thoroughly characterized. The 1% Pt/ZrP catalyst showed excellent catalytic performance for the selective hydrogenation of nitrobenzene. The high dispersion and leaching resistance of the Pt sites resulted in excellent recyclability of the catalysts. In situ DRIFT characterization demonstrated the adsorption of nitro functional group on acid sites of zirconium phosphate and its conversion to para-aminophenol.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Yanyan Jia, Hua-Shan Hsu, Wan-Chun Huang, Da-Wei Lee, Sheng-Wei Lee, Tsan-Yao Chen, Lihui Zhou, Jeng-Han Wang, Kuan-Wen Wang, Sheng Dai
Summary: By decorating a small amount of In2O3 on the Cu surface, a composite Cu-In2O3 catalyst is developed, which greatly enhances the selectivity and stability for CO2-to-CO reduction. In situ X-ray absorption spectroscopy confirms the redox reaction of In2O3 and the preservation of Cu's metallic state during CO2RR. The strong electronic interaction and coupling at the Cu/In2O3 interface serve as the active site for selective CO2RR.
Article
Engineering, Environmental
Na Kang, Yan Wang, Zhi Wen Chen, Xuan Tang, Yuanjiang Wang, Zhiyong Ding, Cheng Zhang, Sheng Dai, Chandra Veer Singh, Pengfei Xie, Mi Yan
Summary: Cu/Y-x-SSZ-13 catalysts with superior low-temperature activity and hydrothermal stability have been prepared by in situ doping of Y and subsequent ion-exchanging with Cu ions. The interaction between Y and Cu enhances the electron transfer and inhibits the aggregation of Cu sites, leading to improved performance of the catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zhinan Fu, Lizhen Wang, Weijun Zhang, Xuan Tang, Wenxin Xia, Jinxia Li, Kuanwen Wang, Lihui Zhou, Xuhong Guo, Sheng Dai
Summary: ZIF-8-derived single atom catalysts with different hollow carbon nanoarchitectures are synthesized using a polyelectrolyte brush-templated-growth approach. Fe, Co, Cu, and Pd single-atom catalysts are successfully synthesized, with Fe catalysts showing superior oxygen reduction reaction performance. The study explores the morphology and structure of the derived materials, revealing the exposure of high-quality single-atom active sites and the promotion of mass transfer in the electrochemical process.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Yuxi Qin, Yongjun Jiang, Xinjia Wei, Yuan Ma, Huiying Liao, Qingpo Peng, Sheng Dai, Zhiqiang Wang, Xiuge Zhao, Zhenshan Hou
Summary: In this study, zirconium phosphate-supported silver nanoparticle catalysts were prepared and characterized. The catalysts showed a strong coordination interaction between silver nanoparticles and the phosphate group on zirconium phosphate, and the acidic sites on zirconium phosphate played a critical role in adsorbing nitrobenzene and activating NaBH4 for hydrogen transfer. The catalysts exhibited high activity and selectivity for the hydrogenation of substituted nitroarenes to azoxybenzene compounds, with full conversion of nitrobenzene achieved within 3 minutes and without leaching of silver species even after multiple recycling. Methanol was found to be an excellent solvent and hydrogen source in this reaction. Overall, the zirconium phosphate-supported silver nanoparticle catalysts are highly effective for selective hydrogenation of nitrobenzene to azoxybenzene compounds.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Physical
Chun Fang Wen, Min Zhou, Xuefeng Wu, Yuanwei Liu, Fangxin Mao, Huai Qin Fu, Yingli Shi, Sheng Dai, Minghui Zhu, Shuang Yang, Hai Feng Wang, Peng Fei Liu, Hua Gui Yang
Summary: A Cu(ii)-benzene-1,3,5-tricarboxylate coordination polymer (Cu-BTC-CP) with asymmetric building units, synthesized by a water etching strategy, achieves highly selective electrochemical conversion of CO2 to ethylene. The catalyst shows an ethylene faradaic efficiency of 65.2 +/- 3% at a high current density of 350 mA cm(-2) in a flow cell. Operando X-ray absorption fine structure analysis reveals the reconstruction of the catalyst to low-coordinated copper under reaction conditions, which promotes CO2 conversion to ethylene.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Multidisciplinary Sciences
Xin Yu Zhang, Zhen Xin Lou, Jiacheng Chen, Yuanwei Liu, Xuefeng Wu, Jia Yue Zhao, Hai Yang Yuan, Minghui Zhu, Sheng Dai, Hai Feng Wang, Chenghua Sun, Peng Fei Liu, Hua Gui Yang
Summary: This paper presents the discovery of a stable Cu-0/Cu2+ interface derived from copper phosphate-based electrocatalysts, which exhibits high selectivity towards C2+ products. This interface facilitates the low-energy pathway of OC-CHO coupling, leading to improved selectivity and Faradaic efficiency of C2+ products.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Zhenpeng Huang, Jihang Yu, Wenbo Li, Xuan Tang, Yanglong Guo, Yun Guo, Li Wang, Sheng Dai, Rui Liu, Wangcheng Zhan
Summary: This study focuses on the surface structure of PtFe nanoparticles on PtFe/CeO2-x catalysts and its impact on the activity and water resistance for propane oxidation. The PtFe/CeO2-O catalyst exhibited superior performance due to the cooperation among metallic Pt sites, active oxygen species, and FeOx nanoclusters. The findings of this study provide valuable insights for the development of efficient bimetallic catalysts to eliminate volatile organic compound pollutants.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
