Article
Energy & Fuels
Subhajit Kundu, Debarati Mitra
Summary: A novel diesel desulfurization process at ambient temperature was developed without using catalyst, which involved solvent extraction using an ionic liquid to eliminate sulfur compounds, with the synthesized ionic liquid showing a high biodegradability rate.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Energy & Fuels
Suhang Xun, Rongmin Le, Chenchao Hu, Desheng Liu, Songmei Wang, Minqiang He, Wenshuai Zhu, Huaming Li
Summary: In this study, supported catalysts V2O5/3D g-C3N4 were prepared using a solvothermal method and programmed calcination, with a vanadium-based ionic liquid (V-IL) [(C8H17)3NCH3]3H3V10O28 as the vanadium source and 3D porous carbon nitride (3D g-C3N4) as the carrier. The use of V-IL promoted the high dispersion of V2O5 on the carrier and effectively avoided agglomeration. As a result, the catalytic oxidative desulfurization activity of V2O5/3D g-C3N4 was greatly enhanced, reducing the content of dibenzothiophene in model oil to 1.2 ppm under appropriate conditions. The recycling capacity and the possible process of oxidative desulfurization were also discussed.
Article
Energy & Fuels
Suhang Xun, Rongmin Le, Chenchao Hu, Desheng Liu, Songmei Wang, Minqiang He, Wenshuai Zhu, Huaming Li
Summary: A series of supported catalysts V2O5/3D g-C3N4 were prepared using a solvothermal method and programmed calcination. The use of a vanadium-based ionic liquid (V-IL) promoted the high dispersion of V2O5 on the carrier and effectively prevented agglomeration. As a result, the catalytic oxidative desulfurization activity of V2O5/3D g-C3N4 was greatly enhanced, reducing the content of dibenzothiophene in model oil to 1.2 ppm under appropriate conditions. The recycling capacity and the possible process of oxidative desulfurization were also discussed.
Article
Chemistry, Applied
Zahra Khalilian, Alireza Najafi Chermahini, Mohamad Mohsen Momeni, Jaleh Najafi Sarpiri, Majid Motalebian
Summary: TiO2 nanotube arrays were successfully synthesized and used as catalyst for oxidative desulfurization. The results showed high catalytic activity and recyclability under specific conditions.
JOURNAL OF POROUS MATERIALS
(2021)
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
Chemistry, Multidisciplinary
Lifang Chen, Jin An Wang, Natali de la Fuente, Sinong Zhou, Peng Jiang, Yueqin Song, Xiaolong Zhou
Summary: This study focuses on the roles of structural defects, surface acidity, and catalytic properties of phosphotungstic acid grafted on Zr-doped MCM-41 catalysts in oxidative desulfurization, demonstrating the importance of these factors in improving catalytic activity for ultralow-sulfur fuel production.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Energy & Fuels
Guojia Yu, Xiaojia Wu, Lu Wei, Zhiyong Zhou, Wei Liu, Fan Zhang, Yixin Qu, Zhongqi Ren
Summary: Ionic liquids (ILs) are efficient green solvents for thiophene sulfides removal. In this study, several acidic ILs were synthesized and [NFM][TFA] showed excellent desulfurization efficiency. Through a proposed mechanism, [NFM][TFA] reacted with H2O2 to oxidize DBT in IL phase to corresponding sulfones.
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
Materials Science, Multidisciplinary
Omid Azadi, Alireza Taheri, Ali Babaei
Summary: In this study, a catalytic oxidative desulfurization (CODS) process using an organic-inorganic hybrid nanocatalyst was proposed to remove thiophene (T) and benzothiophene (BT) from diesel fuel. The nanocatalyst, synthesized using CuO nanoparticles as a support and a mono copper-substituted polyoxotungstate ([PW11CuO39]) as an active component, showed high desulfurization efficiency. The experimental conditions for the CODS process were optimized using response surface methodology, and a removal efficiency of 98% for thiophene and 99% for benzothiophene was achieved. The synthesized heterogeneous nanocatalyst could be separated and recycled successfully, making it a promising strategy for the preparation of clean gasoline fuel.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Chemistry, Analytical
Muhammad Shahid Nazir, Sadaf Ahmad, Zaman Tahir, Sadaf ul Hassan, Zulfiqar Ali, Majid Niaz Akhtar, Kashuf Azam, Mohd. Azmuddin Abdullah
Summary: This review paper highlights recent advancements in the desulfurization of diesel oil, aiming to explore less energy-intensive and more economical processes. The main techniques for desulfurization of diesel oil include hydrodesulfurzation, oxidative desulfurization, biodesulfurization, ionic liquid desulfurization, and adsorption desulfurization. Adsorptive desulfurization technique is considered greener, less energy intensive, and more economical compared to other desulfurization techniques.
CURRENT ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Yan Gao, Lilong Yang, Zhe Liu, Ruimin Gao, Guangfa Hu, Jianshe Zhao
Summary: A series of PIL-based POM salts were designed and synthesized, and supported catalysts were prepared for oxidative organic sulfide extraction in fuel oils. The supported catalyst showed better performance with maximum sulfur removal efficiencies up to 98.32% to 99.98%. The catalyst can be easily recovered and reused without significant activity decrease.
NEW JOURNAL OF CHEMISTRY
(2022)
Article
Engineering, Environmental
Zhendong Yu, Suhang Xun, Meizan Jing, Haofeng Chen, Weiyu Song, Yanhong Chao, Mohammad Rahmani, Yuxiao Ding, Mingqing Hua, Jian Liu, Wenshuai Zhu
Summary: A 3D assembly TiO2 nanoflower catalyst with controllable oxygen vacancies was developed for oxidative desulfurization (ODS) in diesel oil. The increased oxygen vacancies and Ti3+ promote the chemical adsorption and reduce the energy barriers, leading to the generation of hydroxyl radicals and superoxide radicals. The experiment showed a 100% ODS rate in only 30 minutes under optimal conditions.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Biotechnology & Applied Microbiology
Asmaa S. Morshedy, Hager R. Ali, Amr A. Nada, Abdelrahman M. Rabie, Heba H. El-Maghrabi
Summary: The study utilized a well-prepared imprinted nanocomposite polymer as a highly photo-active material for oxidative desulfurization process, achieving a high efficiency of dibenzothiophene degradation. By adjusting experimental parameters such as radiation source, catalyst dosage, reaction time, and addition of oxidizing agents, sulfur compounds can be rapidly removed at room temperature. The material exhibited not only efficient desulfurization under optimal conditions, but also excellent recyclability for multiple uses.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Chemistry, Physical
Jingwen Li, Yanwen Guo, Junjun Tan, Bing Hu
Summary: A novel family of imidazole-based polyoxometalate dicationic ionic liquids catalysts were synthesized for efficient desulfurization of fuel oil, showing excellent desulfurization efficiency and recyclability. The possible mechanism of the ECODS process was proposed based on the catalytic performance under different conditions.
Article
Chemistry, Applied
Lei Wang, Daxiang Xie, Yingying Ma, Meng Sun, Nchare Mominou, Weijie Jiang, Chen Shufeng, Chunyu Jing
Summary: This study prepared a photocatalyst with high desulfurization and denitrogenation activities by Er, W, and N co-doping modification of TiO2. Experimental results showed that the desulfurization and denitrogenation ratios were both 100% under suitable conditions. The co-doping of Er, W, and N extended the photo-absorption range and improved the hole-electron separation of TiO2.
FUEL PROCESSING TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Mohamed M. A. Soliman, Carlos M. M. Granadeiro, Salete S. S. Balula, Armando J. L. Pombeiro, Kamran T. T. Mahmudov, Elisabete C. B. A. Alegria
Summary: In this study, two aquasoluble Fe-III complexes (Fe1 and Fe2) were incorporated into amine-functionalized SBA-15 support, and the resulting composites (Fe1@aptesSBA-15 and Fe2@aptesSBA-15) were used as heterogeneous catalysts for the conversion of furfuryl alcohol. The successful preparation of the composites was confirmed by various characterization methods. The catalysts showed high activity and recyclability for the conversion reaction under mild conditions.
Article
Chemistry, Applied
Diana M. Gomes, Andreia F. Silva, Ana C. Gomes, Patricia Neves, Anabela A. Valente, Isabel S. Goncalves, Martyn Pillinger
Summary: The development of new catalysts is important for expanding the horizons of epoxidation and sulfoxidation processes. In this study, three pyrazine-bridged molybdenum-based coordination networks were investigated for their efficiency in these reactions. The catalysts showed high activity and selectivity for both epoxidation of olefins and oxidation of sulfides.
Article
Chemistry, Physical
Alexandre M. Viana, Francisca Leonardes, Marta C. Corvo, Salete S. Balula, Luis Cunha-Silva
Summary: A successful encapsulation of Keggin-type polyoxomolybdate (PMo12) into metal-organic framework (MOF) materials with ZIF-8 and ZIF-67 was achieved, resulting in a remarkable increase in catalytic activity for oxidative desulfurization. The presence of Zn2+ in PMo12@ZIF-8 played a vital role in achieving the high catalytic performance. Interestingly, the composite with Keggin-type polyoxotungstate (PW12) did not show comparable catalytic activity.
Article
Chemistry, Physical
Martinique S. Nunes, Diana M. Gomes, Ana C. Gomes, Patricia Neves, Ricardo F. Mendes, Filipe A. Almeida Paz, Andre D. Lopes, Martyn Pillinger, Anabela A. Valente, Isabel S. Goncalves
Summary: The discovery of a hybrid catalyst synthesized from renewable biomass is attractive for its environmental and economic benefits. This catalyst demonstrates stable catalytic activity for the oxidation of olefins and sulfides.
Article
Materials Science, Biomaterials
Andreia F. Silva, Isabel B. Calhau, Ana C. Gomes, Anabela A. Valente, Isabel S. Goncalves, Martyn Pillinger
Summary: Metal-organic frameworks (MOFs) have potential as nanoplatforms for the storage and delivery of therapeutic gasotransmitters. Tricarbonyl-pyrazine-molybdenum (0) MOFs were investigated for their ability to release carbon monoxide (CO). The study found that these MOFs can release high amounts of CO in the dark, making them attractive as potential CO-releasing materials.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Review
Chemistry, Inorganic & Nuclear
Patricia Neves, Diana M. Gomes, Isabel S. Goncalves, Martyn Pillinger, Anabela A. Valente
Summary: Catalysis is a fundamental field that contributes to the greenness and sustainability of chemical processes. A recent discovery in this field is reaction-controlled self-separating metal-based catalytic systems, which combine features of both homogeneous and heterogeneous catalysis. This system allows easy separation and reuse of the catalyst, without requiring energy-intensive downstream processes.
COORDINATION CHEMISTRY REVIEWS
(2023)
Article
Biochemistry & Molecular Biology
Daniela Flores, C. Marisa R. Almeida, Carlos R. Gomes, Salete S. Balula, Carlos M. Granadeiro
Summary: The adsorption performance of mesoporous silica-based materials for inorganic and organic water pollutants was investigated. Different properties of the materials were tailored and characterized, and their influence on the removal of metal ions and organic dyes from aqueous solutions was explored. The results show that nanosized mesoporous silica nanoparticles with high surface area have a favorable adsorptive capacity for both types of water pollutants.
Article
Chemistry, Physical
Fatima Mirante, Pedro Leo, Catarina N. Dias, Luis Cunha-Silva, Salete S. Balula
Summary: This study introduces the use of MOF-808(Hf) as a heterogeneous catalyst for the valorization of glycerol, successfully converting it into solketal. MOF-808(Hf) exhibits high efficiency and the ability to be reused, making it a sustainable catalyst for glycerol valorization.
Article
Chemistry, Physical
Yan Gao, Carlos M. Granadeiro, Luis Cunha-Silva, Jianshe Zhao, Salete S. Balula
Summary: In this study, the highly active peroxomolybdate (PMo4) was incorporated into various porous MOF support structures to form heterogeneous catalysts for the oxidative desulfurization of model diesel. The catalytic efficiency of the PMo4@MOF catalysts was significantly influenced by the size of the window entrance and pore dimension from the MOF support. PMo4@MIL-101 showed the highest catalytic efficiency, followed by PMo4@MOF-808 and PMo4@ZIF-8. PMo4@MIL-101 also demonstrated remarkable recycle capacity and structural stability. The appropriate window and pore size cavities from MIL-101 support were found to be the most suitable for organosulfur oxidation.
CATALYSIS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Inorganic & Nuclear
Victor K. Abdelkader-Fernandez, Diana M. Fernandes, Salete S. Balula, Luis Cunha-Silva, Manuel J. Perez-Mendoza, Cristina Freire
Summary: A new nanocomposite PW11Co@ZIF-67 has been synthesized using an in situ strategy, which has individually confined POM units, induced structural defects, and charge transfer. Derivatives obtained from thermal treatment show a carbonaceous nature with complex nanoparticles composed of various species. Among them, D500 exhibits the best intrinsic electrochemistry.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Vaibhav Bedi, Dipendu Mandal, Zahid Hussain, Shi-Ming Chen, Yile Wu, Zheng-Wang Qu, Stefan Grimme, Douglas W. Stephan
Summary: The reaction of (tBuO(2)CN)(2) with 9-BBN leads to the formation of a bicyclic heterocyclic compound, while its reactions with BF3 or [Et3Si][B(C6F5)(4)] result in the isolation of different compounds. Computational studies reveal that the steric and electronic properties of the Lewis acid are important in the formation of one of the compounds.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chisa Itoh, Haruka Yoshino, Taku Kitayama, Wataru Kosaka, Hitoshi Miyasaka
Summary: A new synthetic route for constructing functional paddlewheel diruthenium(II,II) complexes was developed, utilizing Schiff base condensation reactions. The attached Schiff base groups significantly affected the electronic states of the resulting complexes, as revealed by cyclic voltammetry and DFT calculations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Danrui Ni, Haozhe Wang, Xianghan Xu, Weiwei Xie, Robert J. Cava
Summary: A layered rhombohedral polymorph of indium(iii) triiodide is synthesized at high pressure and temperature. It has an orange color, which is different from ambient pressure InI3, which has a monoclinic molecular structure and a light-yellow color.
DALTON TRANSACTIONS
(2024)
Review
Chemistry, Inorganic & Nuclear
Juan Carlos Perez-Sanchez, Raquel P. Herrera, M. Concepcion Gimeno
Summary: Gold(II) complexes have been less utilized in catalysis compared to their gold(I) and gold(III) counterparts. However, gold(II) complexes offer potential in homo-coupling and cross-coupling reactions, as they are more easily accessible through simplified oxidation and reduction processes. Gold(II) exhibits characteristics of both soft acid gold(I) and hard acid gold(III). This review explores the unique reactivity and potential applications of gold(II) species, highlighting their significance in catalytic transformations.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Nighat Yousuf, Yanping Ma, Qaiser Mahmood, Wenjuan Zhang, Yizhou Wang, Hassan Saeed, Wen-Hua Sun
Summary: In this study, a series of structurally rigid cyclooctyl-fused iminopyridine iron complexes were synthesized and used with methylaluminoxane for isoprene polymerization. The extent of steric hindrance of the ligand framework was found to significantly affect catalytic performance, with less hindrance leading to better activity and stability.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Chenghao Song, Huiwei Du, Menglei Xu, Jie Yang, Xinyu Zhang, Jungan Wang, Yuanfang Zhang, Chengjun Gu, Rui Li, Tao Hong, Jingji Zhang, Jiangying Wang, Yongchun Ye
Summary: This study improves the performance of perovskite solar cells by using a dual-hole transport layer strategy. This strategy enhances the charge transfer efficiency of the transport layer, reduces charge recombination, and improves the quality of the perovskite film layer. Ultimately, the stability of the device is enhanced.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mahender Singh, Aakash Yadav, Ranjit Singh, Chullikkattil P. Pradeep
Summary: A new aryl selenonium polyoxometalate hybrid was developed and compared with an aryl sulfonium polyoxometalate hybrid in terms of their photocatalytic properties. It was found that the aryl selenonium hybrid exhibited better catalytic performance, which could be attributed to the larger atomic radii of selenium stabilizing the photogenerated electron-hole pair more efficiently. Additionally, the generation of elemental selenium through cleavage of C-Se bonds during catalysis was observed.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Yuhan Xie, Boyu Dong, Xuemin Wang, Siyuan Wang, Jinxi Chen, Yongbing Lou
Summary: This study successfully fabricated visible-light-responsive three-dimensional core-shell CoSe2/ZnIn2S4 heterostructures and achieved attractive activity in photocatalytic hydrogen evolution. The presence of CoSe2 improved light absorption and accelerated charge transfer kinetics. The strong interaction between CoSe2 and ZnIn2S4 reduced charge recombination, further enhancing photocatalytic activity for hydrogen evolution.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Andre L. de O. Batista, Joao Marcos T. Palheta, Mauricio J. Piotrowski, Celso R. C. Rego, Diego Guedes-Sobrinho, Alexandre C. Dias
Summary: This study presents a simulation protocol that provides a solid foundation for exploring two-dimensional materials. Using the TiBr2 2H monolayer as an example, the study reveals its promising properties for optoelectronic and valleytronic applications, including its stability, spin-orbit coupling effects, and optical helicity selection rule.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Jiang Jiang, Zi-Wei Li, Zhi-Zhuan Zhang, Bin Tan, Zhao-Feng Wu, Xiao-Ying Huang
Summary: In this work, two metal organic frameworks (MOFs) containing {Cu2I2} clusters, Eu-CuI-INA and Sr-K-CuI-INA, were synthesized and characterized. Both materials have a three-dimensional structure with {Cu2I2} clusters coordinated by INA(-) ligands and Eu3+ or Sr2+ ions. The Sr-K-CuI-INA material exhibited sensitive fluorescence sensing behaviors towards cysteine and nitro-bearing molecules, showing potential applications in bio and explosive molecule sensing. This work provides a good reference for designing fluorescent MOF probes containing CuI molecules.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Zhiya Lin, Jiasheng Wu, Qianwen Ye, Yulong Chen, Hai Jia, Xiaohui Huang, Shaoming Ying
Summary: Na-ion batteries (NIBs) have attracted great interest as a potential technology for grid-scale energy storage due to the wide distribution, low cost, and environmental friendliness of sodium resources. However, their implementation is hindered by low rate capability and cycling stability caused by the large ionic size of Na+. In this study, a three-dimensional nanoarchitectured coral-like CoSe2@N-doped carbon (CL-CoSe2@NC) was synthesized, and it exhibited improved sodium storage properties with better electrode kinetics and a stable SEI film.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Ya-Qiong Zhang, Yu Zhang, Guoping Zeng, Rong-Zhen Liao, Man Li
Summary: The mechanism and selectivity of CO2 reduction under visible light were investigated using density functional calculations. The results showed that a tetradentate PNNP-type Iridium(III) complex exhibited high activity and selectivity in the reaction.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Sanyukta Ghosh, Shubhanth Jain, Soumya Ranjan Mishra, Gerda Rogl, Peter Rogl, Ernst Bauer, B. S. Murty, A. Govindaraj, Ramesh Chandra Mallik
Summary: In this study, reduced graphene oxide (rGO) was uniformly dispersed in the In0.5Co4Sb12 bulk material by ultrasonication, which effectively reduced the lattice thermal conductivity and improved the thermoelectric efficiency.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Mika Takeuchi, Yutaka Amao
Summary: This study developed an effective visible-light driven system for fumaric acid production using renewable resources such as biomass derivatives, providing an alternative to the current petroleum-based synthesis methods.
DALTON TRANSACTIONS
(2024)
Article
Chemistry, Inorganic & Nuclear
Juan Jian, Meiting Wang, Zhuo Wang, Jingwen Meng, Yuqin Yang, Limin Chang
Summary: Developing low-cost and self-supported bifunctional catalysts is crucial for highly efficient water splitting devices. In this study, nano-NiFe2O4 was directly grown onto iron foil surface and Sn4+ was introduced into the NiFe2O4. The resulting Sn-NiFe2O4/IF showed low overpotentials and high current densities during oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), making it a promising catalyst for large-scale hydrogen production.
DALTON TRANSACTIONS
(2024)
