Article
Chemistry, Multidisciplinary
Fangfang Chang, Panpan Su, Utsab Guharoy, Runping Ye, Yanfu Ma, Huajun Zheng, Yi Jia, Jian Liu
Summary: This study synthesized a series of edge-enriched N, S co-doped carbon materials by pyrolysis of thiourea encapsulated in zeolitic imidazolate frameworks. These materials exhibited excellent oxygen reduction reaction (ORR) performance in alkaline medium, with low onset potential, good stability, and methanol tolerance. Density functional theory (DFT) calculations revealed that the carbon atoms adjacent to N and S are the probable active sites for ORR intermediates in the edge-enriched N, S co-doped carbon materials, due to their higher electron density, which enhances O2 adsorption and lowers the formation barriers of intermediates, thereby improving the ORR performance.
CHINESE CHEMICAL LETTERS
(2023)
Article
Chemistry, Physical
Tingting Chen, Zizhen Huang, Jiaxin Liu, Linqi Jiang, Jiafan Chu, Chunmei Song, Aiguo Kong
Summary: The new Mn-N-C material exhibits high catalytic activity for oxygen reduction reaction in both alkaline and acidic media, along with impressive capacitive storage performance. The abundant Mn-N-x sites and few MnO nanoparticles contribute to its efficient catalytic activity and storage performance.
Article
Chemistry, Analytical
Yajun Gao, Jiamin Wang, Yitian Du, Chunsen Wu, Huaxiang Li, Zhenquan Yang, Zhiyan Chen, Zhanjun Yang
Summary: An ultrasensitive label-free electrochemical immunosensor was developed for quantitative detection of Lactobacillus rhamnosus GG (LGG). The unique structure design of the carbon material used in the immunosensor allowed for a large specific surface area and excellent electrical conductivity, enabling label-free electrochemical immunosensing of LGG. The immunosensor showed a good linear relationship and low detection limit, as well as good specificity, long-term stability, and reliability.
Article
Chemistry, Multidisciplinary
Shuying Kong, Xinzhu Xiang, Binbin Jin, Xiaogang Guo, Huijun Wang, Guoqing Zhang, Huisheng Huang, Kui Cheng
Summary: In this study, biomass-derived hierarchical porous carbon doped with B, O, and N was successfully synthesized. The carbon material exhibited a high specific surface area and abundant heteroatom doping, resulting in excellent specific capacitance, energy density, and cycling stability.
Article
Electrochemistry
Xianzhong Sun, Xiong Zhang, Kai Wang, Yabin An, Xiaohu Zhang, Chen Li, Yanwei Ma
Summary: The study focused on determining the reliable operating voltage of Lithium-ion capacitors (LICs) by using quantifiable evaluation criteria, providing new guidance for developing high-voltage practical LIC systems.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Guan Wu, Ziyang Ma, Xingjiang Wu, Xiaolin Zhu, Zengming Man, Wangyang Lu, Jianhong Xu
Summary: This study demonstrates high-performance fibre-based electrochemical supercapacitors (FESCs) constructed using hetero-structured polymetallic oxides/porous graphene core-sheath fibres. The FESCs exhibit high areal capacitance and manageable Faradaic reversibility. Furthermore, the solid-state FESCs based on these fibres show high energy-density, long-life cycles, diverse-powered capabilities, and actual energy-supply applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Saudagar Dongare, Neetu Singh, Haripada Bhunia
Summary: By optimizing the loading of ZnO, the CuZnx/NGN catalyst can be tuned for efficient electrochemical CO2 reduction to produce multi-carbon products. The CuZn20/NGN catalyst with 20 wt% ZnO loading shows the highest FE for ethanol and N-propanol production at -0.8 V, with long-term stability.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yan Zhang, Le Zhang, Lin Cheng, Didi Yang, Liu Wan, Cheng Du, Jian Chen, Mingjiang Xie
Summary: A new strategy was developed to construct porous N,O-doped carbon nanosheets as electrode materials for supercapacitors, showing high capacity, energy density, and cycling stability, indicating significant application potential.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Shiyu Yu, Yong Ye, Mei Yang, Yijiang Liu, Duanguang Yang, Huaming Li, Bei Liu
Summary: The innovative strategy of preparing N/B/O co-doped layered porous carbons via ammonium folate-reinforced self-assembly has shown promising results in achieving high energy density supercapacitors with excellent flexibility and long cycle-life, even at low temperatures.
Article
Engineering, Chemical
Guofeng Qiu, Yang Guo, Yixin Zhang, Xu Zhao, Jie Xu, Sixi Guo, Fanhui Guo, Jianjun Wu
Summary: This study develops a method to convert waste bamboo shavings into carbon electrode materials with high specific surface area and hierarchical porous structure for supercapacitor applications. The optimized pore structure and surface modification result in excellent electrochemical properties, including high capacitance and cycling stability. This research provides a valuable reference for the design and preparation of low-cost biomass-based hierarchical porous carbon with outstanding performance for supercapacitors.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Materials Science, Coatings & Films
Gaurav Malik, Jignesh Hirpara, Ankit Kumar, Mritunjay Kumar Pandey, Ramesh Chandra
Summary: This study evaluates the corrosion and wetting properties of sputter deposited O-TiN coating on stainless steel, compared to polished SS-304. The results indicate that the O-TiN coating transforms the hydrophilic surface of SS-304 into a hydrophobic surface, promoting aqueous passivation. The coated sample exhibits greater corrosion resistance than SS-304, making it suitable for long-lasting and corrosion-resistant applications.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Zhichang Xiao, Junwei Han, Haiyong He, Xinghao Zhang, Jing Xiao, Daliang Han, Debin Kong, Bin Wang, Quan-Hong Yang, Linjie Zhi
Summary: This research successfully integrated Schiff-base-type polymers into one-dimensional structures for flexible LIC anodes through a delicate bottom-up strategy, which showed excellent performance in energy density and power density.
Article
Electrochemistry
Mandira Das, Subhradip Ghosh
Summary: Using Density functional theory (DFT) and a solvation model, this study investigates the phenomenon of electrode-electrolyte interaction and its impact on the electrochemical properties of supercapacitor electrodes. Results show that nitrogen doping enhances capacitance, while substitution degrades capacitance. The study suggests that doping is a better approach for improving the storage capacity of the electrode.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Physical
Chongjun Zhao, Yiwen Ding, Yaoxuan Huang, Nan Li, Yaqi Hu, Chunhua Zhao
Summary: The study developed a 3D hierarchical porous carbon derived from natural soybean roots, which exhibited abundant hierarchical pores, large specific surface area, and high specific capacitance. The carbon material showed potential for application as high-performance electrode materials.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Shuaishuai Xu, Yang Gao, Tao Liang, Lipeng Zhang, Bin Wang
Summary: In this study, an N, O co-doped carbon xerogel-based electrocatalyst (NO-CX) was prepared by a simple and economical method. The NO-CX catalyst exhibited high H2O2 selectivity and production rate within a specific potential range. Density functional theory calculations revealed the coupling effect of N and O on catalytic activity.
CHINESE CHEMICAL LETTERS
(2022)
Review
Materials Science, Multidisciplinary
Xiaolong Xu, Xiuxiu Zhao, Kwan San Hui, Duc Anh Dinh, Kwun Nam Hui
Summary: This article summarizes the current progress of rechargeable batteries, introduces the principles of electrochemical reactions for different types of batteries, and analyzes the technological challenges in electron and ion transport. Approaches for regulating electronic and ionic transports to enhance electrochemical performance are discussed, as well as highlighting advanced energy storage materials with good conductivities. Several perspectives on potential research directions for high-performance rechargeable batteries for practical application are proposed.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Physical
Haixing Gao, Siqi Zhu, Yao Kang, Duc Anh Dinh, Kwan San Hui, Feng Bin, Xi Fan, Fuming Chen, Azhar Mahmood, Jianxin Geng, Weng-Chon Max Cheong, Kwun Nam Hui
Summary: In this study, efficient bimetallic nanoparticles encapsulated in nitrogen-doped carbon (Co-Fe@NC) were developed for the air electrode of high-performance rechargeable hybrid sodium-air batteries (HSABs). The bimetallic Co-Fe@NC catalyst showed higher activity and better performance in the oxygen reduction and evolution reactions compared to monometallic catalysts. The assembled HSAB with Co-Fe@NC in the air electrode demonstrated improved voltage gap, power density, and round-trip efficiency compared to the benchmark HSAB with Pt/C + RuO2.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jiancong Zhang, Xing Wang, Mengjun Liang, Minxian Han, Jinhong Dai, Qiang Wei, Than Zaw Oo, Su Htike Aung, Kwun Nam Hui, Fuming Chen
Summary: This work reports a solar-driven redox flow desalination system that combines a Bi(2)O(3) photoanode-based solar cell with a redox flow desalination cell. The dye-sensitized solar-driven desalination cell achieved a high salt removal rate without consuming electrical power, demonstrating efficient desalination and energy release using light as a driving force. This research is significant for the development of efficient and stable photoanode materials in photo-electrochemical desalination.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Haixing Gao, Shuo Wang, Weng-Chon (Max) Cheong, Kaixi Wang, Huifang Xu, Aijian Huang, Junguo Ma, Jiazhan Li, Weng-Fai (Andy) Ip, Kwan San Hui, Duc Anh Dinh, Xi Fan, Feng Bin, Fuming Chen, Kwun Nam Hui
Summary: Ultrathin nitrogen-doped carbon nanosheets with intrinsic defects were synthesized through the pyrolysis of ZIF-8 with linker vacancies. The as-synthesized electrocatalyst exhibited excellent oxygen reduction reaction (ORR) activity and zinc-air battery performance. The adjacent sp3-carbon was found to enhance the adsorption and activation of oxygen molecules on sp2-carbon, leading to a lower ORR overpotential.
Review
Green & Sustainable Science & Technology
J. Li, K. S. Hui, D. A. Dinh, S. Wu, X. Fan, F. Chen, K. N. Hui
Summary: This review summarizes the mechanisms, challenges, and electrolyte strategies of dual-ion batteries (DIBs) to address the issues faced by DIBs and provide guidance for the future development of DIBs.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Chemistry, Multidisciplinary
Kaixi Wang, Shuo Wang, Kwan San Hui, Junfeng Li, Chenyang Zha, Duc Anh Dinh, Zongping Shao, Bo Yan, Zikang Tang, Kwun Nam Hui
Summary: A 3D quasi-parallel structure consisting of dense Pt nanoparticles immobilized on oxygen vacancy-rich NiOx heterojunctions has been developed as an alkaline hydrogen evolution reaction (HER) catalyst. The catalyst exhibits extraordinary HER performance with a low overpotential, high mass activity, and long durability. When combined with NiFe-layered double hydroxide, the assembled alkaline electrolyzer requires extremely low voltage and can operate stably for a long time.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Environmental
Junfeng Li, Kwan San Hui, Yunshan Zheng, Shunping Ji, Kaixi Wang, Chenyang Zha, Duc Anh Dinh, Xi Fan, Fuming Chen, Zongping Shao, Kwun Nam Hui
Summary: Rechargeable aluminum-ion batteries (AIBs) have attracted considerable attention as a desirable device for largescale energy storage. However, the current AIBs often suffer from sluggish electrode reaction kinetics and rapid capacity fading, as well as poor structural stability of cathode materials. In this study, we investigate the Al storage behavior and mechanism of NiS2/S-doped carbon cathode and develop NiS2/S-doped carbon@S-doped carbon nanofiber as the cathode for AIBs. The as-fabricated AIB exhibits unprecedented Al3+ storage performance, with a stable capacity and superior cycling Coulombic efficiency. This study paves the way for the further development of NiS2-based cathodes for AIBs.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Shunping Ji, Yunshan Zheng, Kwan San Hui, Junfeng Li, Kaixi Wang, Chunyan Song, Huifang Xu, Shuo Wang, Chenyang Zha, Duc Anh Dinh, Zikang Tang, Zongping Shao, Kwun Nam Hui
Summary: By mixing amorphous zinc phosphate with black phosphorus nanomaterials, the agglomeration of black phosphorus can be weakened, and the volume expansion can be reduced, thus improving the stability of the composite electrode in humid air. The optimized amorphous black phosphorus/zinc phosphate composite anode retains a capacity of 369.0 mA h g-1 and reduces the volume expansion to 47% compared to the untreated electrode. Additionally, the amorphous zinc phosphate can absorb water, resulting in good environmental stability even after exposure to humid air for two days, with a reversible capacity of 629.2 mA h g-1.
ENERGY STORAGE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Sobin Mathew, Ki-Hyun Park, Youri Han, Kwun Nam Hui, Oi Lun Li, Young-Rae Cho
Summary: A novel metal-free catalyst with remarkable activity in the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) was synthesized. The catalyst exhibited low overpotential when deposited on a conductive nickel foam substrate. Additionally, it displayed lower operating potentials and good stability in an alkaline anion-exchange membrane electrolyzer.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zhenjiang Yu, Hongmei Shan, Yunlei Zhong, Guo Hong, Kwan San Hui, Xia Zhang, Kwun Nam Hui
Summary: This study presents a lithium-free V2O5 cathode for application in polymer-based solid-state batteries (SSBs) with high energy density. The microstructured transport channels and suitable operational voltage enable the utilization of polymer-based solid-state electrolyte (SSE). The V2O5 cathode, constructed through microstructural engineering, exhibits improved electrochemical performance and cycling stability in SSBs.
Article
Nanoscience & Nanotechnology
Jiancong Zhang, Xing Wang, Mengjun Liang, Minxian Han, Jinhong Dai, Qiang Wei, Than Zaw Oo, Su Htike Aung, Kwun Nam Hui, Fuming Chen
Summary: This work presents a solar-driven redox flow desalination system that utilizes a Bi2O3 photoanode and an integrated electrode. The system achieves efficient salt removal and energy release using light as a driving force.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Energy & Fuels
Cheng Liu, Running Kang, Feng Bin, Xiaolin Wei, Kwun Nam Hui, Saravanan Kasipandi, Kwan San Hui
Summary: The elucidation of selective catalytic reduction mechanisms over metal-promoted zeolites is important for removing nitric oxides. In this study, copper/ZSM-5 showed the highest catalytic activity, while nickel/ZSM-5 exhibited weaker activity, with low-temperature peak induced by nickel clusters dispersed on the ZSM-5 surface. The results demonstrate the relationship between zeolite structure and catalyst properties for improving selective catalytic reduction.
CARBON RESOURCES CONVERSION
(2022)
Article
Materials Science, Multidisciplinary
Xiaolong Xu, Shuo Wang, Shiquan Guo, Kwan San Hui, Jiameng Ma, Duc Anh Dinh, Kwun Nam Hui, Hao Wang, Lipeng Zhang, Guowei Zhou
Summary: This study proposes CoPS nanoparticles encapsulated with S, P, N tri-doped carbon material as a bifunctional electrocatalyst for the oxygen evolution reaction and the oxygen reduction reaction. Density functional theory calculations show that the P element in CoPS@SPNC improves the electrical conductivity and reduces the OH* hydrogenation energy barrier, thereby enhancing the overall reaction activities. The flexible Zn-air battery with CoPS@SPNC exhibits excellent performance.
ADVANCED POWDER MATERIALS
(2022)
Article
Chemistry, Physical
Kaixi Wang, Shuo Wang, Kwan San Hui, Haixing Gao, Duc Anh Dinh, Chengzong Yuan, Chenyang Zha, Zongping Shao, Zikang Tang, Kwun Nam Hui
Summary: By rational design of a hierarchical multiheterogeneous catalyst, the activity and stability of alkaline hydrogen evolution reaction can be enhanced, optimizing reaction kinetics and mass transport for efficient catalytic applications.
Article
Chemistry, Physical
Muhammad Faisal Iqbal, Yuyang Yang, Mahmood Ul Hassan, Xincheng Zhang, Guijun Li, Kwun Nam Hui, Mohamed Esmat, Meng Zhang
Summary: This study synthesized mesoporous zinc sulfide nanoparticles and polyaniline hybrids using the solvothermal process and investigated their morphology and structure. The hybrid ZnS-90 mg showed excellent HER activity with low overpotential and high turnover frequency under alkaline conditions, making it suitable for clean hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
