Article
Chemistry, Multidisciplinary
Jiyang Xie, Kelvin Ng, Yunsheng Dai, Jinke Jiang, Juan Yu, Anli Gao, Hongqin Wang, Xinyu Huang, Weiping Liu, Shuailong Guo
Summary: A novel Pd precursor is synthesized to overcome the challenge of fabricating highly water-soluble and chlorine-free precursors from Pd complexes. A Pd/Al2O3 adsorbent is prepared and evaluated to have higher sulfur adsorption capacity and improved stability compared to a commercial Pd/Al2O3 adsorbent.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Environmental Sciences
Heba H. El-Maghrabi, Rasha S. Mohamed, Ahmed A. Younes
Summary: The study describes a novel method of incorporating sulfonic acid groups onto mesoporous silica surface and evaluates its desulfurization efficiency. The prepared adsorbent showed high adsorption capacity for DBT and the desulfurization process was found to be spontaneous and exothermic.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Energy & Fuels
Hengfu Shui, Rong Ge, Dehai Zou, Shibiao Ren, Zhanku Li, Jingchong Yan, Zhiping Lei, Zhicai Wang
Summary: This study successfully obtained potential jet fuels with low sulfur and high cyclanes content by catalytic hydro-desulfurization and hydrogenation of coal-petroleum co-processing oil and its distillation fraction.
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
Multidisciplinary Sciences
Mohammad Reza Khosravi-Nikou, Mohammad Hadi Safari, Amir Asadi Rad, Pouya Hassani, Mohammad Mohammadian, Maryam Ahmadi, Negin Ghafari, Maryam Naseri
Summary: In this study, a modified mesoporous adsorbent impregnated with aluminum was used to remove aromatic sulfur compounds from a model fuel. Through various analytical methods, it was found that the Temkin model and pseudo-second-order model were most suitable for describing the adsorption equilibrium and kinetics, respectively.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Chemical
Cuiting Yang, Bowen Wu, Zewei Liu, Guang Miao, Qibin Xia, Zhong Li, Michael J. Janik, Guoqing Li, Jing Xiao
Summary: This study reports an effective and deep removal of organosulfurs from transformer oil using a Ti-based adsorbent. The catalytic adsorptive desulfurization (CADS) process achieved significantly improved organosulfur uptakes compared to traditional adsorptive desulfurization (ADS). The CADS process showed the highest adsorption capacity among reported desulfurization adsorbents and excellent recyclability and breakthrough capacity.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Yun Zu, Linjie Guan, Zhongsen Guo, Chengming Huang, Dedong He, Yi Mei
Summary: CeAlSBA-15 materials show high adsorption efficiency and regeneration performance for deep removal of thiophenic sulfur compounds in low-sulfur concentration fuels. The Ce(III) species are considered as effective adsorption active sites, and CeAlSBA-15 adsorbents exhibit excellent adsorption selectivity.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Huawei Yang, Hou Chen, Hao Niu, Suting Xie, Xinyu Zhao, Lixia Yang, Liangjiu Bai, Donglei Wei, Wenxiang Wang
Summary: In this study, a highly efficient and durable AODS catalyst was prepared by loading N-doped vanadium oxide on reduced graphene oxide through high-temperature ammonia treatment. The catalyst showed excellent catalytic performance at 400 degrees C ammoniation temperature, achieving rapid and complete conversion of various thiophenes at 90-120 degrees C and normal pressure. Furthermore, the catalyst remained active after six repeated uses.
Article
Energy & Fuels
Hao Niu, Suting Xie, Xinyu Zhao, Huawei Yang, Lixia Yang, Liangjiu Bai, Donglei Wei, Wenxiang Wang, Hou Chen
Summary: This paper reports the fabrication of a highly efficient and durable AODS catalyst by loading N-doped amorphous vanadium oxide on reduced graphene oxide via high-temperature ammonia treatment. The optimal catalyst achieved rapid and full conversion of various thiophenes under relatively low reaction conditions, exhibiting excellent activity and stability.
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
Chemistry, Multidisciplinary
Shengqin Guan, Zhiling Li, Baoen Xu, Juncheng Wu, Jie Han, Taotao Guan, Jianlong Wang, Kaixi Li
Summary: In this study, the influence of the electron density of hydrogen bond acceptor (HBA) on the formation of deep eutectic solvents (DESs) and the performance of oxidative desulfurization (EODS) was investigated. The desulfurization efficiency of phenol/formic acid (Ph/FA) DES under optimal conditions (30 degrees C, O/S = 2) can reach as high as 99.8%. This study not only provides a new aspect for designing and understanding DESs, but also offers a novel catalyst for efficient EODS.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Energy & Fuels
Antony Rajendran, Hong-Xia Fan, Tian-You Cui, Jie Feng, Wen-Ying Li
Summary: This study reports the preparation of a catalyst based on WOx on SnO2 and its performance in desulfurization of model diesel. SnO2 plays a role in adsorbing sulfur compounds and enhancing catalytic performance, with higher surface area SnO2 aiding in the formation of efficient polymeric WOx species.
Article
Engineering, Chemical
Liberty L. Mguni, Yali Yao, Jianwei Ren, Xinying Liu, Diane Hildebrandt
Summary: This study investigated the characterization and adsorptive desulfurization performance of a group of adsorbents, including activated carbon and a novel synthesized Ni-based metal-organic framework. The quantities of both the activated carbon and modulator were found to influence the nucleation of the material, crystallite size, and crystallinity. The composite material showed improved adsorption activity towards different sulfur compounds, attributed to enhanced pore structure, crystallinity, and synergistic effects.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Energy & Fuels
Yefeng Liu, Peng Zuo, Ruixin Wang, Weizhou Jiao
Summary: A composite material with small and well-distributed molybdenum carbide nanoparticles was prepared via carbonization. The material exhibited excellent oxidative desulfurization performance and achieved ultra-deep desulfurization of fuel. Catalytic oxidation played a dominant role in the process.
Article
Engineering, Environmental
Jing Tu, Heng Xu, Jingqing Tian, Haozhe Li, Li Liang, Pingyun Li, Xiaode Guo
Summary: By one-step copolymerization of polyether amines with different molecular weight, we obtained a room temperature self-healing elastomer with high strength mechanical properties. The polymer networks contained low density and high density hydrogen bond functional regions due to the different chemical length. The low density hydrogen bond functional regions enhanced the self-healing properties of the polymer, while the high density hydrogen bond functional regions improved the rigidity of polymer network and enhanced the mechanical properties of materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Yuhua Wu, Jianpeng Cui, Xinhai Xu, Daxiang Deng
Summary: Concentrated photovoltaic (CPV) has attracted attention for its higher efficiency compared to traditional solar cells by concentrating sunrays. Heat dissipation is a critical challenge for CPV at high concentration ratios, but can be mitigated by adjusting water flow rate and temperature to reduce cell temperature and enhance power output. The overall efficiency of heat sinks is influenced by cooling area and channel numbers.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Electrochemistry
Yuhua Wu, Xinhai Xu, Zilin Yan, Zheng Zhong
Summary: A comprehensive three-dimensional model for an assembled button solid oxide fuel cell is developed, considering thermal-electrochemical and mechanical effects. The mechanical response of the button cell at different operational stages is numerically simulated, showing the susceptibility of different components to failure and the importance of considering chemical expansion at higher temperatures.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Energy & Fuels
Zehua Pan, Jian Shen, Jingyi Wang, Xinhai Xu, Wei Ping Chan, Siyu Liu, Yexin Zhou, Zilin Yan, Zhenjun Jiao, Teik-Thye Lim, Zheng Zhong
Summary: This study proposes a diesel-fueled SOFC distributed power generation system and conducts thermodynamic analysis. The water condenser is found to be vital for improving system efficiency, while the presence of H2S can lead to a decrease in system efficiency and potential irreversible damage.
Article
Energy & Fuels
Liang Chen, Daxiang Deng, Qixian Ma, Yingxue Yao, Xinhai Xu
Summary: Efficient cooling is crucial for high concentration photovoltaic (HCPV) cells to maintain their electrical performance and extend their lifetime. In this study, a novel microchannel heat sink with serpentine reentrant microchannels (SRM) was developed for efficient cooling of HCPV cells. The SRM design effectively reduced cell temperatures and improved temperature uniformity, resulting in increased output power and electrical efficiency for the HCPV cell module.
Article
Chemistry, Physical
Yifei Wang, Wending Pan, Shijing Luo, Xiaolong Zhao, Holly Y. H. Kwok, Xinhai Xu, Dennis Y. C. Leung
Summary: An innovative dual-gel electrolyte design is proposed for solid-state metal-air batteries, which achieves higher voltage output and longer discharge lifetime. The higher ionic diffusion resistance of gel electrolytes reduces the mixing of different electrolytes, ensuring a pseudo-stable battery system. The effective ion diffusivity in gel plays a vital role in the battery stability. A flexible version of the dual-gel metal-air battery is demonstrated using paper-based gel electrolytes.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Energy & Fuels
Jiawei Xu, Shengying Xiao, Xinrui Xu, Xinhai Xu
Summary: Researchers have developed a novel three-dimensional non-isothermal model to accurately study the influence of carbon monoxide as an impurity on high-temperature proton exchange membrane fuel cells. The model is able to accurately predict the performance of the fuel cell and analyze various reactions and rates under different conditions.
Article
Chemistry, Physical
Shengying Xiao, Jiawei Xu, Yifei Wang, Jingyi Wang, Xinhai Xu
Summary: This study develops a methanol processing system consisting of a methanol reformer and two-stage preferential oxidation reactors. The system achieves stable methanol conversion and high-purity hydrogen production. Experimental results demonstrate the system's ability to effectively reduce carbon monoxide concentration to meet the requirements of fuel cells. Stability testing shows that the integrated system has good operational stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Yuhua Wu, Haokun Liu, Yifei Wang, Liang An, Xinhai Xu
Summary: This study investigates the effects of hydrogen dilution ratio and electrical loading on the electrical performance and temperature of a segmented solid oxide fuel cell (SOFC). The results show that diluting the fuel decreases the average cell temperature but leads to a strongly inhomogeneous distribution of current density and temperature in the cell, especially at low hydrogen ratios and operating voltages. Additionally, the cathode segment near the gas outlet experiences greater degradation.
JOURNAL OF POWER SOURCES
(2022)
Article
Energy & Fuels
Yun Liu, Zhefei Pan, Oladapo Christopher Esan, Xinhai Xu, Liang An
Summary: In this study, a direct ammonia fuel cell using an anion exchange membrane and commercially available catalysts is developed. The effects of operating parameters on cell performance are experimentally examined, and it is found that increasing KOH concentration, moderate flow rates, and higher operating temperatures enhance the cell performance.
Article
Chemistry, Physical
Jiawei Xu, Yawen Zhao, Yuhua Wu, Yifei Wang, Shengying Xiao, Xinhai Xu
Summary: This study investigates the effects of CO, CO2, H2O, and CH3OH on the performance of a fuel cell. The results show that an increase in anodic charge and mass transfer resistances due to CO poisoning results in a 77 mV overpotential. The dilution effect of CO2 is similar to Ar, with only a 4 mV difference in overpotential. H2O decreases resistances and reduces the overpotential by 10 mV. CH3OH below 3% has a slight positive effect, but 5% CH3OH results in a high overpotential of 36 mV.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Thermodynamics
Jiawei Xu, Yuhua Wu, Shude Luo, Caizhi Zhang, Xinhai Xu
Summary: It is found that the high-temperature proton exchange membrane fuel cell with phosphoric acid-doped polybenzimidazole membrane is commonly used with a methanol steam reformer due to its high CO tolerance. However, the effect of water in the methanol reformate on the fuel cell is unclear. A comprehensive model considering the water influence mechanism shows that increasing water content can improve cell performance and reduce platinum loading.
APPLIED THERMAL ENGINEERING
(2023)
Article
Engineering, Environmental
Yuhua Wu, Zilin Yan, Jiawei Xu, Zheng Zhong, Xinhai Xu
Summary: Composite engineering is an effective strategy for improving the performance and durability of cobalt-based mixed ionic-electronic conducting electrodes. A microstructure-resolved 3D pore-scale model based on an open-source Lattice Boltzmann library is used to study the behavior of composite electrodes. The results show that higher triple-phase-boundary density and ionic conductivity outweigh the disadvantages of lower double-phase-boundary density and electronic conductivity.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Thermodynamics
Hanming Chen, Tao Wu, Shude Luo, Yifei Wang, Xinhai Xu
Summary: The solid oxide electrolysis cell technology can be combined with intermittent power sources to produce hydrogen for electrical energy storage. Active operation strategies are found to improve the transient performances of the electrolysis cell under large-scale dynamic electrical inputs. A three-dimensional dynamic model is developed to investigate the effects of different active operation strategies. The mechanism and feasibility of fuel and air operation strategies are examined, and a fuel-air hybrid operating strategy is proposed to increase the dynamic range.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Jiawei Xu, Yuhua Wu, Shengying Xiao, Yifei Wang, Xinhai Xu
Summary: The high temperature proton exchange membrane fuel cell integrated with the methanol steam reformer is a promising technology. This study evaluates the performance of the fuel cell fed with a mixture of H2, CO, and other impurities. The results show that the presence of CH3OH with CO benefits the fuel cell performance at low current densities but aggravates CO poisoning at high current densities.
Article
Energy & Fuels
Yifei Wang, Wending Pan, Kee Wah Leong, Xinhai Xu, Guangzhong Dong, Xinguo Ye, Mingming Zhang, Dennis Y. C. Leung
Summary: Metal ion batteries with water-in-salt electrolyte, especially the Al ion battery, demonstrate low cost, high safety, abundant metal availability, and high energy density, making them suitable for powering wearable electronics. In this study, screen-printing is used for the first time to develop a water-in-salt Al ion battery. The battery prototype shows excellent performance, with high specific current, specific capacity, and durability, as well as flexibility, robustness, and safety for wearable applications.
JOURNAL OF ENERGY STORAGE
(2023)
