Article
Chemistry, Multidisciplinary
Dun Lin, Dewei Rao, Samuel Chiovoloni, Shanwen Wang, Jennifer Q. Lu, Yat Li
Summary: By utilizing a double-layered cathode structure, the undesired shuttling of triiodide ions has been successfully suppressed, resulting in outstanding Coulombic efficiency and voltage efficiency for ZIBs. These findings offer new insights for the design and fabrication of ZIBs and other batteries based on conversion reactions.
Article
Chemistry, Multidisciplinary
Shixian Wang, Yue Ru, Yangyang Sun, Huan Pang
Summary: Vanadate has gained attention for its application in electrode materials due to its high specific capacity and layered crystal structure. In this study, a typical manganese vanadium oxides (MnV 2 O 6 ) product was synthesized via a one-step hydrothermal method and used as a cathode material in aqueous zinc ion batteries. The MnV 2 O 6 sample exhibited a unique one-dimensional fan-like superstructure composed of nanorods, providing a highly-open framework for the intercalation and deintercalation of guest ions.
CHINESE CHEMICAL LETTERS
(2023)
Article
Materials Science, Multidisciplinary
Gongzheng Yang, Chengxin Wang
Summary: A new method to increase the electrochemical capacity of aqueous Zn/V5O12·6H2O batteries was proposed by adding a small amount of platinum. The Pt additive enhances the pseudocapacitance, leading to extra electron transfer and promoting Zn2+ ion stripping/plating on the Zn anode. The study suggests that Pt plays a vital role in enhancing the electrochemical capacity through the pseudo-Zn-air reaction, introducing a new strategy for achieving high-performance aqueous zinc-ion batteries.
ENERGY & ENVIRONMENTAL MATERIALS
(2021)
Article
Chemistry, Physical
Jianyuan Wu, Cho-Jen Tsai
Summary: In this study, the effects of Zn-doping on the material structure and electrochemical properties of LiCoPO4 (LCP) were explored, revealing an unreported intermediate phase Li1/2Co1-nZnnPO4 and proposing two conjectured configurations. It was found that the redox potential and conductivity of Zn-doped LCP increase with doping concentration, leading to improved rate capability, cycle life, and energy efficiency.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Shilong Li, Ming Zhao, Dongdong Zhang, Xiang Wu
Summary: Layered delta-MnO2 materials are considered to be ideal cathode materials for zinc ion storage, but the structural collapse during long cycling affects device performance. Preintercalation of cations is an efficient strategy to modulate the electrode structure and improve performance. In this study, K+ ion was introduced into the delta-MnO2 interlayer using a solvothermal route. The prepared samples delivered a capacity of 389 mA h/g at 0.2 A/g and maintained a capacity retention of 95% after 1000 charge/discharge cycles, demonstrating their important application prospects in the field of portable electronics.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Nanoscience & Nanotechnology
Heng Lv, Jiali Wang, Xinyu Gao, Yongwen Wang, Yunfei Shen, Ping Liu, Gang Wang, Long Chen, Tiantian Gu
Summary: Aqueous zinc batteries have attracted widespread interest due to their excellent theoretical capacities and high security. Metal-organic frameworks (MOFs) have shown great potential as cathodes for constructing high-performance AZIBs. In this work, ZnMn-SQ MOF was synthesized and demonstrated high capacity and long cycle life as a cathode. Moreover, a modified zinc anode using cubic porous Zn-SQ-3d was used to construct high-performance AZIBs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Xiaosha Cui, Yaxiong Zhang, Situo Cheng, Yupeng Liu, Zhipeng Shao, Zhenheng Sun, Yin Wu, Hongzhou Guo, Jiecai Fu, Erqing Xie
Summary: This research proposes a strategy to enhance the electrochemical performance of rechargeable aqueous Zn-ion batteries (AZIBs) by improving the successive electrochemical conversion reactions. By designing the electrode with a rational approach, an even and homogeneous electric field is achieved, leading to significantly improved efficiency of the electrochemical conversion reactions. The reversibility behaviors of byproducts are found to play a crucial role in determining the charge-discharge process and cycling stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yifei Geng, Liang Pan, Ziyu Peng, Zhefei Sun, Haichen Lin, Caiwang Mao, Ling Wang, Lei Dai, Haodong Liu, Kunming Pan, Xianwen Wu, Qiaobao Zhang, Zhangxing He
Summary: Aqueous Zn ion batteries (AZIBs) are a promising electrochemical energy storage device. Additive engineering is an innovative and flexible technology that effectively solves the challenges faced by AZIBs cathode and anode. This review summarizes the effects of additive engineering on cathode and anode, as well as the influence on charge storage mechanism and kinetic characteristics of AZIBs.
ENERGY STORAGE MATERIALS
(2022)
Review
Chemistry, Multidisciplinary
Zhiheng Li, Jian Tan, Caiyun Gao, Yuan Wang, Yonggang Wang, Mingxin Ye, Jianfeng Shen
Summary: Organic compounds are attractive alternatives to conventional inorganic materials for aqueous zinc-ion batteries, due to their high theoretical capacities, structural tunability, controllable synthesis, and environmental friendliness. This review provides a systematic overview of recent developments, energy storage mechanisms, and design strategies for aqueous Zn-organic batteries (ZOBs). It summarizes the ion storage mechanisms, analyzes the dynamic behavior, and highlights the synthesis strategies of organic electrode materials. It also discusses strategies to improve the electrochemical performance and the challenges for practical applications of aqueous ZOBs.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Chemistry, Physical
Guangxu Yang, Shuhua Yang, Jian Shen, Yanwei Cui, Jinfeng Sun, Guangbin Duan, Bingqiang Cao, Zongming Liu
Summary: Due to its high safety and low cost, aqueous Zn-ion batteries (AZIBs) have become one of the most promising energy storage devices. In this study, a stable cathode with fast kinetics and high-energy density, KOH-induced oxygen-deficient VO2 (K-VO2), was developed. The K-VO2 cathode achieved improved kinetics and enhanced Zn-ion storage capability through unique morphology, abundant active sites, and oxygen vacancy. The optimized K-VO2-3:4 demonstrated excellent electrochemical performance, indicating the potential of the KOH activation strategy for developing high-energy and stable cathodes.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jian Wu, Quan Kuang, Ke Zhang, Jingjie Feng, Chunmao Huang, Jiajie Li, Qinghua Fan, Youzhong Dong, Yanming Zhao
Summary: This study introduces spinel Zn3V3O8 as a high-capacity zinc supplied cathode in vanadium family for AZIBs, achieving a discharge capacity of 285 mA.h g(-1) and excellent capacity retention. Additionally, a novel Zn-metal free AZIBs using Zn3V3O8 parallel to carbon paper battery has been designed, aiming to promote the practical application of rechargeable AZIBs.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Zhao Xu, Yan Zhang, Wenshan Gou, Mengmeng Liu, Yifei Sun, Xuguang Han, Wei Sun, Changming Li
Summary: This communication systematically illustrates the electrolyte chemistry in aqueous Zn-S batteries. Compared to Zn(AC)(2) and ZnSO4, Zn(OTF)(2) electrolyte shows better electrochemical performance due to the impact of larger CF3SO3- anions on the solvation shell structure of Zn2+. Moreover, a reversible capacity of 788 mA h g(-1) is obtained in concentrated Zn(OTF)(2) electrolyte (3 M) with higher retention due to higher Zn-nucleation overpotential and slower corrosion reactions.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Wenshan Gou, Tian Jiang, Wei Wang, Qi Fan, Yan Zhang
Summary: A novel calcium-pure terephthalates acid framework was synthesized and explored as a cathode material for rechargeable aqueous zinc-ion batteries (AZIBs). It exhibited high specific capacity and excellent cycle performance.
CHINESE CHEMICAL LETTERS
(2023)
Review
Chemistry, Multidisciplinary
Mingming Han, Daru Chen, Qiongqiong Lu, Guozhao Fang
Summary: This review focuses on the characteristics, issues, and optimization strategies of static aqueous rechargeable Zn-Iodine batteries (ARZiBs). The energy storage mechanism and fundamental issues of ARZiBs are clarified, and recent progress in cathode fabrication, electrolyte modulation, and separator/anode modification is summarized. The review also provides future research outlook to guide the rational design of advanced ARZiBs.
Review
Chemistry, Multidisciplinary
Pingwei Cai, Kai Chen, Zhiwen Lu, Ritwik Mondal, Musthafa Ottakam Thotiyl, Zhenhai Wen
Summary: Aqueous OH-/H+-DIZBs have the potential to broaden the working voltage range and improve the energy density, thereby overcoming the limitations of pH mismatch and narrow potential windows. This Review investigates the concept, history, working mechanisms, electrolyte improvements, and challenges and opportunities in this field.
Article
Engineering, Environmental
Weidong Li, Qingguo Xu, Dezhi Kong, Haoyuan Yang, Tingting Xu, Hui Wang, Jinhao Zang, Shaozhuan Huang, Xinjian Li, Ye Wang
Summary: In this research, a flexible quasi-solid-state aqueous nickel-iron battery with high energy density, high power density, and excellent cycling stability is developed using ultrathin Ni(OH)2 nanoflakes and porous alpha-Fe2O3 nanorods as the cathode and anode, respectively. The battery exhibits stable electrochemical performance even under different bending conditions. The ultrathin nanoflakes and porous nanorods deposited on 2D hollow carbon arrays contribute to the excellent electrochemical properties. This work provides a novel approach to design and develop QSSA batteries for future flexible and wearable electronic devices.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Bofang Tian, Zhenxin Huang, Xilian Xu, Xiehong Cao, Hui Wang, Tingting Xu, Dezhi Kong, Zhuangfei Zhang, Jie Xu, Jinhao Zang, Xinjian Li, Ye Wang
Summary: This study reports a novel 3D Ag/CNT-GF composite matrix that provides favorable sites for the nucleation and growth of lithium and sodium metals, resulting in low nucleation overpotentials, high Coulombic efficiency, and long cycle life. The composite matrix exhibits a dendrite-free morphology and excellent electrochemical performance, making it a promising candidate for stable Li/Na deposition and future applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Tianxing Kang, Chenchen Wang, Xiaoyang Zhao, Zhiqiang Guan, Dong Shen, Tianyi Song, Yan Wu, Fan Zhang, Yongbing Tang, Zhongqiu Tong, Chun-Sing Lee
Summary: The research team has developed an electrochemically inert and catalytic sp2c-COF separator to stabilize Li plating/stripping and accommodate high mass loadings of cathode in future high energy-density rechargeable batteries with Li metal anodes (LMAs). The nano-pores of sp2c-COF enable homogeneous Li+ flux and its electrochemical inertness prevents side reactions. The cyano-groups on sp2c-COF are critical for generating an inorganic-rich solid electrolyte interphase. Li symmetrical cells demonstrate excellent Li plating/stripping behaviors, and full batteries assembled with LiCoO2 and LiNi0.8Co0.1Mn0.1O2 cathodes show impressive areal capacities. This work provides an important strategy for the stabilization of LMA in rechargeable batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Fangyuan Kang, Yilin Lin, Shiwei Zhang, Zicong Tan, Xiang Wang, Jinglun Yang, Yung-Kang Peng, Wenjun Zhang, Chun-Sing Lee, Weiwei Huang, Qichun Zhang
Summary: Organic radical batteries (ORBs) with radical-branched polymers as cathode materials are considered as a promising solution for energy storage. A chemically stable polynitrosoarene (tris(4-nitrosophenyl)amine) is designed as an efficient cathode for ORBs, which exhibits remarkable reversible charge/discharge capability and high capacity. It can achieve a capacity of up to 300 mA h g(-1) (93% theoretical capacity) after 100 cycles at 100 mA g(-1) within a wide potential window. The material also shows outstanding cycle life with 85% capacity retention after 1000 cycles at 1000 mA g(-1), making it the best-reported organic radical cathode material for lithium-ion batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Zhifeng Jiang, Zhiquan Zhang, Jianli Liang, Min Zhou, Daobin Liu, Danjun Mao, Qun Zhang, Wei Zhang, Huaming Li, Li Song, Taicheng An, Po Keung Wong, Chun-Sing Lee
Summary: An efficient catalyst is developed for CO2-to-CO conversion using diverse N-C-b materials with hierarchical pore structures. The surface local electric field originating from charge separation can be boosted by hierarchical pore structures, doped N, as well as pyridinic-N, thereby enhancing the CO2RR performance. These findings provide new insights into CO2RR on N-C-b and will guide the design of nature-based photocatalysts.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ka-Wai Lee, Yijian Gao, Wei-Chih Wei, Ji-Hua Tan, Yingpeng Wan, Zhe Feng, Yuhuang Zhang, Ying Liu, Xiuli Zheng, Chen Cao, Huan Chen, Pengfei Wang, Shengliang Li, Ken-Tsung Wong, Chun-Sing Lee
Summary: A bright benzo[c]thiophene (BT) J-aggregate fluorophore (BT6) with anti-quenching effect is reported for highly efficient NIR-II bioimaging and phototheranostics. The BT fluorophores have Stokes shift over 400 nm and aggregation-induced emission (AIE) property, overcoming the self-quenching issue of J-type fluorophores. In an aqueous environment, BT6 assemblies exhibit absorption over 800 nm and NIR-II emission over 1000 nm, resulting in enhanced imaging capabilities. The BT6 NPs show excellent performance in NIR-II fluorescence imaging and cancer phototheranostics, as demonstrated by in vivo visualization and imaging-guided phototherapy results.
ADVANCED MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Tingting Xu, Lijuan Hou, Congcong Yan, Jingrui Hou, Bofang Tian, Huiyu Yuan, Dezhi Kong, Hui Wang, Xinjian Li, Ye Wang, Guopeng Zhang
Summary: A heterogeneous seed layer of Au nanoparticles (NPs) is deposited on 3D porous vertical graphene nanosheets on carbon cloth (Au-VG/CC) to create a lithiophilic surface, resulting in a smooth and dendrite-free morphology. The Au-VG/CC electrode shows a small voltage hysteresis (67.2 mV) and long cycling life (more than 500 h) at a high current density of 5 mA cm-2 with 5 mAh cm-2. XRD and in-situ transmission electron microscopy reveal a lithiophilic layer of Li3Au, which guides lithium deposition. Furthermore, a full battery assembled with Li@Au-VG/CC anode and LiFePO4 cathode exhibits a capacity of 77.3 mAh g-1 at 100 mA g-1 after 200 cycles.
SCRIPTA MATERIALIA
(2023)
Article
Chemistry, Analytical
Zhongjiao Feng, Jiasheng Wu, Weimin Liu, Haohui Ren, Xiuli Zheng, Wenjun Zhang, Chun-Sing Lee, Pengfei Wang
Summary: A Golgi-targeting two-photon fluorescent probe was designed to detect hydrogen peroxide with high sensitivity and selectivity. It can be used for visualization of endogenous/exogenous H2O2 in vitro and in vivo.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Multidisciplinary Sciences
Li Zhai, Sara T. Gebre, Bo Chen, Dan Xu, Junze Chen, Zijian Li, Yawei Liu, Hua Yang, Chongyi Ling, Yiyao Ge, Wei Zhai, Changsheng Chen, Lu Ma, Qinghua Zhang, Xuefei Li, Yujie Yan, Xinyu Huang, Lujiang Li, Zhiqiang Guan, Chen-Lei Tao, Zhiqi Huang, Hongyi Wang, Jinze Liang, Ye Zhu, Chun-Sing Lee, Peng Wang, Chunfeng Zhang, Lin Gu, Yonghua Du, Tianquan Lian, Hua Zhang, Xue-Jun Wu
Summary: Epitaxial growth is a commonly used strategy to tailor heterostructures with precise compositions and interfaces. However, it is challenging for materials with large lattice mismatch and/or different chemical bonding. In this study, the authors developed a noble metal-seeded epitaxial growth strategy to prepare highly symmetrical noble metal-semiconductor branched heterostructures, demonstrating the feasibility of epitaxial growth in materials with large lattice mismatches.
NATURE COMMUNICATIONS
(2023)
Article
Spectroscopy
Yimin Guo, Weimen Liu, Jie Sha, Xuewei Li, Haohui Ren, Jiasheng Wu, Wenjun Zhang, Chun-Sing Lee, Pengfei Wang
Summary: The development of photosensitizers with subcellular targeting capability has become a focus in photodynamic therapy research. In this study, two coumarin-based photosensitizers (C-S-2 and C-S-3) were designed and synthesized with expanded pi-conjugation, strong electron-donor and acceptor groups, and sulfur substitution strategy. These sulfured-coumarins demonstrated near-infrared emission, lipid droplet-targeting ability, and significant photocytotoxicity under laser irradiation. Specifically, C-S-3 showed better photostability, superior lipid droplet-targeting capability, and stronger photodynamic effect on cancer cells compared to C-S-2.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Ze-Lin Zhu, Jie Yan, Li-Wen Fu, Chen Cao, Ji-Hua Tan, Sheng-Fu Wang, Yun Chi, Chun-Sing Lee
Summary: By modifying Pt(ii) dicarbene pincer complexes, the effect of aromatic substituents on excimer formation was studied. IPrtBuPt showed high stability and ultrahigh luminous efficiency, maintaining blue emission at doping concentrations of up to 20%. Furthermore, the emission of IPrtBuPt significantly overlapped with the absorption of nu-DABNA, achieving high EQEs, narrow FWHM, and specific CIE coordinates in a hyper-OLED structure.
MATERIALS CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Xiao-Chun Fan, Kai Wang, Yi-Zhong Shi, Dian-Ming Sun, Jia-Xiong Chen, Feng Huang, Hui Wang, Jia Yu, Chun-Sing Lee, Xiao-Hong Zhang
Summary: In this study, two new thermally activated delayed fluorescence (TADF) emitters were synthesized, and three effective approaches for enhancing the efficiency of nondoped OLEDs were combined. These emitters were designed to have high steric hindrances to minimize concentration quenching, and they showed stable conformations in solid films, allowing effective doping in the matrix. The resulting OLEDs achieved nearly 100% exciton utilization, over 30% external quantum efficiencies, and ultralow efficiency roll-off at high brightness, which are unprecedented in reported nondoped OLEDs.
Article
Chemistry, Multidisciplinary
Jianli Liang, Huabin Zhang, Qianqian Song, Zheyang Liu, Jing Xia, Binhang Yan, Xiangmin Meng, Zhifeng Jiang, Xiong Wen (David) Lou, Chun-Sing Lee
Summary: To address the greenhouse effect and energy crisis, solar-driven reduction of CO2 is a promising strategy. This study successfully decorated isolated cobalt atoms into oxygen-doped boron nitride, which greatly improves catalytic activity and selectivity to CO production. The decorated cobalt atoms act as the real active center and electron pump to enhance electron/hole separation and transfer, accelerating reaction kinetics and improving activity.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ruru Chen, Jian Zhao, Yifan Li, Yi Cui, Ying-Rui Lu, Sung-Fu Hung, Shifu Wang, Weijue Wang, Guodong Huo, Yang Zhao, Wei Liu, Junhu Wang, Hai Xiao, Xuning Li, Yanqiang Huang, Bin Liu
Summary: By using experimental and theoretical approaches, this study successfully tracked and identified the metastable state of single-atom Sn in copper oxide, providing fundamental insights for the highly selective electroreduction of CO2 to produce CO.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Computer Science, Artificial Intelligence
Likun Xia, Yuan Feng, Ziheng Guo, Jinhong Ding, Yanlei Li, Yifan Li, Ming Ma, Guoxi Gan, Yehan Xu, Jingyu Luo, Zhiping Shi, Yong Guan
Summary: This study proposes an early detection framework based on EEG data for reducing the risk of mental stress-related diseases. The framework, called MuLHiTA, utilizes a multibranch LSTM and hierarchical temporal attention approach to effectively identify mental stress levels. Experimental results demonstrate that MuLHiTA outperforms state-of-the-art algorithms, showcasing its viability for early detection of mental stress.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
