Article
Nanoscience & Nanotechnology
Doo-Won Kim, So Yeun Kim, Kap Seung Yang
Summary: This study successfully synthesized a composite material consisting of graphene-wrapped niobium pentoxide and carbon nanofibers, which was used as a binder- and additive-free electrode for lithium-ion batteries. The composites exhibited outstanding electrochemical performances and are promising for application in next-generation high-performance lithium-ion batteries.
Article
Chemistry, Multidisciplinary
Kangzhe Cao, Sitian Wang, Jiahui Ma, Xiaobing Xing, Xiaogang Liu, Yong Jiang, Yang Fan, Huiqiao Liu
Summary: The unique properties of the MnNb2O6 anode make it an attractive candidate for holding Li ions. However, its application as a Li-ion battery anode is hindered by low capacity due to poor electronic conductivity and limited electron transfer. This study explores the reasons behind capacity increments achieved through structure and component optimization. The researchers prepared MnNb2O6-C nanofibers with confined MnNb2O6 nanoparticles in carbon nanofibers, and compared them with MnNb2O6 nanofibers consisting of larger nanoparticles. Electrochemical evaluations showed that the MnNb2O6-C nanofibers delivered high reversible capacity and stable cycling performance. Further analysis revealed that the capacity increment was attributed to partial structure rearrangement, mainly including an increase in pseudocapacitance. This work suggests that reducing the dimensions of MnNb2O6 nanoparticles and confining them in a matrix can increase the pseudocapacitance-dominated capacity, offering a novel approach to improve the reversible capacity of MnNb2O6 and other intercalation reaction anodes.
Article
Chemistry, Physical
Vahid Charkhesht, Alp Yurum, Selmiye Alkan Gursel, Begum Yarar Kaplan
Summary: A novel conductive composite binder PEDOT:PSS was successfully utilized in the preparation of high-performance anodes for Li-ion batteries. The electrospinning conditions were optimized to achieve a fully covered and structurally stable fibrous network. PEDOT:PSS exhibited excellent electrochemical activity and stable cycling performance.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Physical
Dmitry Yarmolich, Yaroslav Odarchenko, Carmen Murphy, Enrico A. Petrucco, James Cookson, Dzianis Yarmolich, Teng Zhao, Hyun-Kyung Kim, R. Vasant Kumar, Rumen Tomov
Summary: Novel binder-free, high capacity carbon-based anodes were manufactured using Virtual Cathode Deposition technique, exhibiting excellent battery performance with high specific capacity and Coulombic efficiency. The unique structure of the coatings, including induced packing polymorphism and high surface area, plays a crucial role in enhancing the battery performance.
Article
Chemistry, Physical
Qiming Wang, Zhuo Chen, Shuai Bai, Xi Wang, Yining Zhang
Summary: In this study, a specific structure of BVO coated on CuO@Cu current collector was constructed. This structure can buffer the volume expansion and prevent the dissolution of Li3VO4, improving the cycle stability and maintaining high capacity of the electrode. Additionally, some copper particles enter into the electrode material, enhancing its electronic conductivity and improving the rate performance of the LIBs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Wenshuai Lang, Chuang Yue, Man Dang, Gang Wang, Yimin Chen, Fang Hu, Zhiming Liu, Jie Shu
Summary: Three-dimensional graphene networks were successfully fabricated on nickel foam using chemical vapor deposition technique, followed by the deposition of amorphous Ge layer using radio frequency magnetron sputtering method. The Ge-decorated graphene networks exhibited improved electrochemical performance as anodes for lithium-ion batteries compared to directly coated two-dimensional Ge nanoelectrodes on bare Ni foam. The optimized 3D Ge@Gr hybrid electrode achieved significantly enhanced electrochemical cyclability for 1500 long-term cycles under higher current density of 1.2 mA cm-2. The interconnected 3D graphene with enlarged surface area effectively buffered the volume change of the Ge anode and improved electrical/ionic conductivity, resulting in superb stable cyclability.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Multidisciplinary
Sun-Sik Kim, Sung Mi Jung, Chenrayan Senthil, Hyun Young Jung
Summary: The study presents effective strategies for a SnO2-based anode to enable rapid-charging, long-cycle, and high reversible capacity. The quantum size of SnO2 nanoparticles uniformly embedded within a 3D conductive carbon matrix facilitates a highly reversible conversion reaction, resulting in a high reversible capacity and capacity increase after cycles.
Article
Chemistry, Multidisciplinary
Ruoqian Jiang, Haocheng Yuan, Xianbin Wei, Haijun Wang, Hee-Jae Shin, Jinle Lan, Yunhua Yu, Xiaoping Yang
Summary: The study utilized a facile coaxial electrospinning method to fabricate MXene/Si@C nanofibers, addressing the challenges of silicon in lithium-ion batteries. The nanofibers showed structural advantages in improving silicon particle performance, fast charge transfer, and lithium ion migration. Excellent electrochemical performance was achieved in the experiments, laying the foundation for the practical application of silicon.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Lei Jiang, Zhe Zhang, Fenghao Liang, Daoning Wu, Ke Wang, Bohejin Tang, Yichuan Rui, Fengjiao Liu
Summary: By synthesizing the Fe2O3@g-C3N4@H-MMCN material, the study achieved superior electrochemical performance with excellent rate capabilities, high specific capacity, and steady cycling performance. This was attributed to the synergistic effects of the host material and ultra-fine Fe2O3 nanoparticles.
DALTON TRANSACTIONS
(2021)
Review
Materials Science, Multidisciplinary
Xinwang Cao, Chang Ma, Lei Luo, Lei Chen, Hui Cheng, Raphael Simha Orenstein, Xiangwu Zhang
Summary: The addition of nanofiber materials to Li-ion batteries has been a significant advancement, as it provides unique structural features and enhances their electrochemical performance. This article discusses recent advancements in nanofiber materials for Li-ion batteries, including the synthesis, structure, and properties of nanofiber cathodes, anodes, separators, and electrolytes, as well as their applications. The challenges and prospects of nanofiber materials in Li-ion battery applications are also outlined.
ADVANCED FIBER MATERIALS
(2023)
Article
Chemistry, Physical
Lifeng Zhang, Jiaxi Bai, Yaoxin He, Bangmei Lu, Liyue Xue, Xingang Kong, Shouwu Guo
Summary: Flexible MoTe2/C nanofibers were synthesized through electrospinning and tellurization treatment. The optimized MoTe2/C-600 exhibited enhanced Na+ storage performance, delivering a high reversible capacity of 294 mAh g-1 after 100 cycles at 0.1 A g-1 and ultra-long time cycling performance of 5000 cycles at 1.0 A g-1. The flexible electrode possessed 1D conductive paths, 3D ion diffusion channels, excellent flexibility, and mechanical strength, enabling efficient electron/Na+ transfer and enhanced cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Shunchang Li, Xin Guo, Lili Zhao, Fuhua Chen, Xueying Wang, Ying Chu, Weihua Wan, Yongping Zhu
Summary: This article presents the fabrication of nanofiber clusters of NiCo2O4-decorated 3D graphene@Nickel foam (NCO@3DGNF) as a potential anode material for high-energy-density lithium-ion batteries (LIBs). When used as a binder-free electrode, the NCO@3DGNF nanocomposite exhibits high discharge capacity, good reversibility, and excellent rate performance. The hierarchical porous structure of the material enhances electrolyte penetration, rapid electron transport, and strain buffering during lithiation.
Article
Chemistry, Multidisciplinary
Liyufen Dai, Xiangli Zhong, Juan Zou, Bi Fu, Yong Su, Chuanlai Ren, Jinbin Wang, Gaokuo Zhong
Summary: The highly ordered SnO2 nanopillar array developed as binder-free anodes for lithium-ion batteries has shown significantly improved cyclic performance and rate capability. This nanoarray maintains a high specific capacity even under high current density, demonstrating superior electrochemical performance compared to traditional SnO2-based electrodes.
Article
Nanoscience & Nanotechnology
Jian Li, Kai Yang, Yun Zheng, Shuyu Gao, Jingchao Chai, Xiaohua Lei, Zhuo Zhan, Yuanjian Xu, Maige Chen, Zhihong Liu, Qingzhong Guo
Summary: A water-soluble polyamide acid (WS-PAA) binder with ionic bonds was synthesized as a promising binder for SiO(x) anodes. The WS-PAA binder formed stable hydrogen bonds with the SiO(x) anode and provided sufficient mechanical strength for the electrodes. The introduction of ionic bonds by triethylamine (TEA) improved water solubility and Li(+) transport channels, enhancing the electrochemical properties of SiO(x) electrodes.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Fei Qi, Qiuran Li, Wenxia Zhang, Qiang Huang, Bingyan Song, Yuanfu Chen, Jiarui He
Summary: In this study, a three-dimensional and freestanding ReS2/graphene heterostructure (3DRG) was synthesized for the first time via a one-pot hydrothermal method, which can be directly used as a freestanding and binder-free anode for lithium-ion batteries (LIBs). The 3DRG anode exhibits hierarchically sandwich-like, nanoporous, and conductive three-dimensional network constructed by two-dimensional ReS2/graphene heterostructural nanosheets. With a current density of 100 mA g-1, the 3DRG anode delivers a high reversible specific capacity of 653 mAh g-1. It also shows higher rate capability and cycling stability compared to the bare ReS2 anode.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Wenjing Lu, Xin Wang, Jingzhe Zhang, Hui Wang, Zhiguo Qu, Fuming Chen, Zhongchang Wang
Summary: This study proposes a plasma treatment method to modify the plastic surface and enhance the conversion of waste plastics into fuel. The plasma-treated samples exhibit higher conversion efficiency, increasing the utilization of plastic recycling.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yongkun Lun, Shuting Hu, Fuming Chen, Qinyu He, Yinzhen Wang, Wei Li, Guannan He
Summary: In this study, an S-scheme heterojunction-structured composite was prepared and its photocatalytic properties were investigated. The results showed that the dopant Mo and the S-scheme heterojunction significantly improved the photocatalytic performance, suggesting their potential in environmental remediation.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Wangjian Zhai, Junfeng He, Shuting Hu, Yuheng Liang, Fuming Chen, Yinzhen Wang, Guannan He, Qinyu He
Summary: A novel, magnetic, p-n heterojunction-structured La0.7Sr0.3MnO3/g-C3N4 photocatalyst was designed and showed high degradation efficiency and reusability. The p-n heterojunction facilitated the excitation of photogenerated electrons and the generation of more superoxide radicals, leading to enhanced photocatalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Green & Sustainable Science & Technology
Mengjun Liang, Ramalingam Karthick, Qiang Wei, Jinhong Dai, Zhuosheng Jiang, Xuncai Chen, Than Zaw Oo, Su Htike Aung, Fuming Chen
Summary: Solar-driven photoelectrochemical desalination (SD-PED) technology, utilizing sustainable solar energy for salt ion removal, shows promise for commercialization. Despite its high salt removal rate and initial photocurrent, challenges such as rapid decline of photocurrent and difficulty in seawater desalination exist. Strategies to enhance long-term stability include system configuration optimization and choice of photosensitive materials.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Engineering, Chemical
Xin Wang, Xuejiang Wang, Hui Wang, Qiang Wang, Jingke Song, Fuming Chen
Summary: In this study, expanded graphite based Z-scheme photocatalysts were developed for efficient degradation of microcystin-LR in water. The research revealed crucial steps in the degradation process, main radical species, specific active sites, and provided new insights through experimental and theoretical calculations.
SEPARATION AND PURIFICATION TECHNOLOGY
(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.
Article
Chemistry, Applied
Yunxiao Tong, Ying Zang, Senda Su, Yinggui Zhang, Junzhuo Fang, Yongqing Yang, Xiaoman Li, Xiang Wu, Fuming Chen, Jianhua Hou, Min Luo
Summary: This study adopts a strategy of designing hybrid cathodes for efficient aqueous zinc-ion batteries. Methylene blue (MB) intercalated vanadium oxide (HVO-MB) is synthesized through sol-gel and ion exchange methods, and it exhibits high specific capacity, high rate capability, and extraordinary stability in 3 M Zn(CF3SO3)2 aqueous electrolyte. The electrochemical kinetics reveal that HVO-MB has large pseudocapacitance charge storage behavior due to fast ion migration provided by coordination reactions and expanded interlayer distance.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Engineering, Chemical
Kaixiang Shen, Qinyu He, Qiang Ru, Danling Tang, Than Zaw Oo, Mono Zaw, Nyein Wint Lwin, Su Htike Aung, Swee Ching Tan, Fuming Chen
Summary: The lithium resources in seawater are more abundant than on land, which can meet the growing demand for energy storage devices like lithium batteries. The electrochemical method using membranes with advanced lithium-ion selectivity is considered the most potential application. In this study, a flexible LATP/PVDF-HFP composite membrane (FLCM) was prepared using poly (vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) as the flexible framework and Li1.3Al0.3Ti1.7(PO4)3 (LATP) as the lithium ion conductor. The optimized FLCM showed high lithium-ion selectivity and could enrich lithium in diluted seawater up to 5.525 ppm, which is 48.465 times that of commercial cation-exchange membrane (CEM). The work will be significant in solving the challenges of lithium extraction from seawater.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Dafeng Gao, Dayi Jiao, Fuming Chen, Yuheng Liang, Yinzhen Wang, Guannan He, Wei Li, Qinyu He
Summary: In this study, a SnS2/S-doped g-C3N4 composite was prepared using a hydrothermal method. The composite exhibited nano-sized SnS2 particles deposited on Sg-C3N4, forming a Z-scheme photocatalyst. The uneven surface of Sg-C3N4 resulted in a rough surface of the SnS2/Sg-C3N4 composite, enhancing its specific surface area and light absorption. The carrier transfer capability and lifetime of g-C3N4 were improved after S doping, and the rate constant of the composite was greatly increased compared to pure SnS2 and Sg-C3N4.
Article
Chemistry, Physical
Dian Zhang, Jinhong Dai, Mengjun Liang, Minxian Han, Qinyu He, Fuming Chen, Lain-Jong Li
Summary: In this study, an electrolyte-based thermal redox desalination (ETRD) device powered by temperature difference is proposed, which can desalinate seawater while generating electricity. The ETRD device operates at a temperature difference of 60 K and exhibits high performance in terms of power density and salt removal rate. It also demonstrates reusability and stability.
ACS ENERGY LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Xin Wang, Jingzhe Zhang, Hui Wang, Mengjun Liang, Qiang Wang, Fuming Chen
Summary: Defect engineering can improve the adsorption and photocatalytic properties of photocatalytic composites for the control of antibiotics and heavy metal combined pollution. The introduction of defects into the TiO2/CN/3DG composite enhances the photocatalytic activity by increasing the contributions from h+ and OH. The defect construction on TiO2 shows advantages in tetracycline degradation and Cu2+ adsorption, while the defect construction on graphene enables the cooperative removal of tetracycline and Cu2+.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Environmental
Mengjun Liang, Jiancong Zhang, Xuncai Chen, Mono Zaw, Than Zaw Oo, Nyein Wint Lwin, Su Htike Aung, Yuan Chen, Fuming Chen
Summary: We demonstrate a novel solar-driven redox flow desalination device with double photoelectrodes, achieving efficient desalination without electrical energy consumption. The device consists of three units: a photoanode unit, a photocathode unit, and a redox flow desalination unit. Under light illumination, high-quality freshwater is obtained from brackish water. The device can work in multiple desalination cycles without significant performance declines, opening opportunities for efficient and practical solar-driven desalination processes.
Article
Materials Science, Multidisciplinary
Feier Fang, Wenlong He, Zexiang Liu, Ke Jiang, Ye Wang, Fuming Chen, Henan Li, Yumeng Shi
Summary: A lead-free double perovskite (Cs2AgBiBr6) has attracted attention for optoelectronic applications due to its non-toxicity, high stability, and high detection sensitivity. By reducing grain boundaries, non-radiative recombination can be suppressed, leading to the potential for good performance in photodetector applications. This study synthesized high-quality, large-area Cs2AgBiBr6 thin films using a blade-coating method under ambient conditions, providing a promising approach for the development of environmentally friendly and high-performance optoelectronic devices.
JOURNAL OF MATERIALS CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Jingzhe Zhang, Xin Wang, Kaixiang Shen, Wenjing Lu, Jun Wang, Fuming Chen
Summary: In this study, g-C3N4 quantum-dot-modified TiO2 nanofibers were synthesized and used as an efficient photocatalyst to investigate the influence of Cu2+ and the interaction mechanism between Cu2+ and surface defects in tetracycline degradation. The results demonstrated that the effect of Cu2+ on tetracycline degradation switched from promotion to inhibition as the amount of accumulated Cu2+ on the catalyst surface increased. Moreover, the introduction of surface defects prevented the inhibitory effect of Cu2+ and resulted in more complete degradation of tetracycline compared to the non-defective sample.
ADVANCED FIBER MATERIALS
(2023)
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)