Article
Environmental Sciences
Haotian Zhu, Jiayuan Li, Dichao Wu, Gaoyue Zhang, YunJuan Sun, Ao Wang, Kang Sun
Summary: In this work, a multi-stage activation strategy combining different activation methods is proposed to construct hierarchical porous biochar controllably. The optimal sample, BC-P3K4S, exhibits the highest specific surface area of 3583.3 m(2) g(-1). When evaluated as the electrode for a lithium-ion capacitor, BC-P3K4S shows a capacity of 139.1 mAh g(-1) at 0.1 A g(-1). Coupled with pre-lithiated hard carbon, the full device exhibits a high energy density of 129.3 W h kg(-1) at 153 W kg(-1). This work provides insights into the preparation of hierarchical porous biochar from complex biomass using a multistep activation method.
Article
Chemistry, Physical
Min Eui Lee, Jiseon Yoo, Hyoung-Joon Jin, Se Youn Cho, Yong Suk Chung
Summary: The porous activated carbon prepared using kenaf as biomass carbon precursor showed excellent electrochemical performance as the cathode of a lithium-ion capacitor, with high specific surface area, applicable pore volume, and well-developed carbon structure. This biomass-derived carbon demonstrated outstanding specific capacity, rate capability, and cycling stability, indicating that optimizing the pore and carbon microstructure contributed to enhancing the energy density of the lithium-ion capacitor.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jae Won Choi, Dong Gyu Park, Keon-Han Kim, Won Ho Choi, Min Gyu Park, Jeung Ku Kang
Summary: A strategy to synthesize cathode and anode materials using Co-Zn mixed metal-organic frameworks was reported. The 3D nitrogen-doped hierarchical porous graphitic carbon (NHPGC) frameworks were synthesized as cathode materials, while tin oxide precursors were introduced to form the SnO2@NHPGC anode. The NHPGC cathode and SnO2@NHPGC achieved high capacity, fast rechargeable capability, and long-cycle stability.
MATERIALS HORIZONS
(2023)
Article
Metallurgy & Metallurgical Engineering
Yan Feng, Cai-yu Cao, Jing Zheng, Ri-chu Wang, Chao-qun Peng, Xiao-feng Wang
Summary: In this study, hierarchical porous Co3O4 spheres were synthesized and the structure and performance of the spheres were investigated. The Co3O4-700 spheres exhibited excellent cycling performance with high reversible discharge and charge specific capacities.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Ziyu Chen, Anni Zhang, Chao Geng, Jianzhen Xiong, Pengchang Sun, Ni Tu, Yaxin Chen, Jiangmin Jiang, Zhicheng Ju
Summary: Hierarchical porous carbon material with rich microporous structures is synthesized from low-cost coal through hydrothermal treatment, KOH activation, and high-temperature carbonization, showing great potential as an anode material for both lithium-ion batteries and potassium-ion batteries. It delivers a high specific capacity of 844 mAh g-1 and excellent cycle stability in lithium-ion batteries, and exhibits a reversible specific capacity of 314 mAh g-1 and a specific capacity of 235 mAh g-1 in potassium-ion batteries.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Energy & Fuels
Fei Mo, Yanyan Wang, Tingting Song, Xiaoliang Wu
Summary: In this paper, nitrogen-oxygen co-doped hierarchical porous carbon (HPC) was prepared through a one-step carbonization method. The HPC-4 electrode exhibited excellent electrochemical performance due to its three-dimensional interconnected hierarchical porous structure, high content of heteroatomic functional groups, and large specific surface area. A symmetrical supercapacitor assembled with two HPC-4 electrodes achieved an energy density of 21.13 Wh kg-1 (100 W kg-1). Furthermore, a zinc-ion hybrid capacitor constructed with HPC-4 as the cathode, zinc foil as the anode, and 2 M ZnSO4 as the electrolyte showed outstanding capacitance (282.81 F g-1), ultra-high energy density (100.56 Wh kg-1), and excellent cycle performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Jia-Yu Tan, Jing-Ting Su, Yen-Ju Wu, Chun-Lung Huang, Po-Yin Cheng, Yu-An Chen, Shih-Yuan Lu
Summary: A new energy storage device, the lithium-ion capacitor (LIC), has been developed that pairs battery-type anodes with capacitor-type cathodes to deliver high energy and power densities. The use of hollow porous alpha-Fe2O3 nanoparticles (alpha-Fe2O3 HPNPs) as anode materials has shown to significantly improve the high-rate capability and cycling stability of LICs. The nanostructure of electrodes plays a crucial role in enhancing the performance of LICs, with the hollow porous structure proving to be advantageous for anode materials.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Physical
Tong Qian, Yunchun Huang, Mengdi Zhang, Zhengzheng Xia, Haiyan Liu, Lu Guan, Han Hu, Mingbo Wu
Summary: The hierarchically porous carbon frameworks produced by carbonizing petroleum asphalt with KHCO3 exhibit high specific surface area, enabling faster lithium storage rate and three-times higher capacitive performance compared to widely used activated carbon cathodes.
Article
Chemistry, Physical
Yan-Ting Lin, Cai-Wan Chang-Jian, Tzu-Hsien Hsieh, Jen-Hsien Huang, Huei Chu Weng, Yu-Sheng Hsiao, Wei-Lin Syu, Chih-Ping Chen
Summary: In this study, biomass-derived porous carbon and high-rate Li4Ti5O12 (LTO) were prepared as cathode and anode materials for Li-ion capacitors (LICs). The bio-derived carbon with excellent electrochemical properties and the modified LTO with enhanced rate performance successfully addressed the kinetic mismatch issue between the cathode and anode in LICs. The LIC fabricated by combining the bio-derived porous carbon and high-rate LTO exhibited high energy/power density and maintained good cycling stability after 10,000 cycles.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Yifan Jin, Shutian Tan, Zhengju Zhu, Ying He, Le Quoc Bao, Petr Saha, Qilin Cheng
Summary: In this study, a MoS2/C@MXene composite was synthesized through electrostatic flocculation and hydrothermal reaction, exhibiting good conductivity and oxidation resistance. This composite demonstrates excellent energy storage and rate performance in lithium-ion capacitors (LICs).
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Jintao Lu, Qian Zhang, Qing An, Tong Bu, Liu Hong, Yuheng Feng, Dezhen Chen
Summary: By using a novel activation method, hierarchical porous carbon can be produced from high-ash sewage sludge char, which demonstrates excellent electrochemical performance. HF washing for ash removal and KHCO3 for mesopores extension are crucial steps.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Applied
Jun Liu, Aixiang Wei, Guoxiang Pan, Shenghui Shen, Zhiming Xiao, Yu Zhao, Xinhui Xia
Summary: The study presents a sacrificial NiO arrays template method for controllable synthesis of self-supported hierarchical porous Li4Ti5O12/C nanoflakes arrays, serving as fast rechargeable anodes for LIBs. The well-designed binder-free porous LTO/C nanoflakes arrays exhibit notable high-rate lithium ion storage performance due to enhanced electrical conductivity and accelerated ion transfer channels.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Nanoscience & Nanotechnology
Haoqiang Wang, Yu Wang, Yani Liu, Shuming Dou, Wei Gan, Qunhui Yuan
Summary: A novel hierarchical structure composed of delaminated Ti3C2Tx, SnCu2Se4 nanoparticles, and N-doped porous carbon layers is designed as an anode for lithium/sodium ion hybrid capacitor. The structure exhibits excellent cycling stabilities and rate performance in LIB and SIB, with high energy densities and long lifespans.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Tien-Yu Yi, Cheng-Wei Tai, Chi-Chang Hu
Summary: PVdF, CMC, and PAANa were investigated as polymeric binders for EMCMB in LICs, showing that aqueous binders improve the reversibility and micro-porosity of EMCMB, although PVdF exhibits better capacitance retention in cycling tests.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Cuixia Cheng, Fang Chen, Guosong Lai
Summary: In this study, hierarchical copper manganese oxide porous micro/nanospheres were synthesized and showed improved lithium storage performance, including high first discharge capacity, satisfactory cycle performance, fair rate capability, fast Li+ diffusion kinetics, and low activation energy. Additionally, the hierarchical micro/nanospheres maintained their integrity after 500 cycles.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Guangchao Li, Zhoulan Yin, Huajun Guo, Zhixing Wang, Guochun Yan, Zhewei Yang, Yong Liu, Xiaobo Ji, Jiexi Wang
ADVANCED ENERGY MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Qianwen Deng, Zhen Tian, Xiaomin Wang, Zhewei Yang, Yucheng Wu
CHEMISTRY-A EUROPEAN JOURNAL
(2020)
Article
Chemistry, Physical
Zhenxin Zhao, Huijun Li, Zhewei Yang, Siyue Hao, Xiaomin Wang, Yucheng Wu
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Chemistry, Multidisciplinary
Zhewei Yang, Huajun Guo, Guochun Yan, Xinhai Li, Zhixing Wang, Yuntao Guo, Xiaomin Wang, Yucheng Wu, Jiexi Wang
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Electrochemistry
Zhenxin Zhao, Rajesh Pathak, Xiaomin Wang, Zhewei Yang, Huijun Li, Qiquan Qiao
ELECTROCHIMICA ACTA
(2020)
Article
Chemistry, Physical
Zhewei Yang, Yuan Gao, Zhenxin Zhao, Yongzhen Wang, Yucheng Wu, Xiaomin Wang
JOURNAL OF POWER SOURCES
(2020)
Article
Biochemistry & Molecular Biology
Sheng-Yao Peng, Li-Ching Lin, Zhe-Wei Yang, Fang-Rong Chang, Yuan-Bin Cheng, Jen-Yang Tang, Hsueh-Wei Chang
Article
Electrochemistry
Yuan Gao, Zhewei Yang, Yongzhen Wang, Xiaomin Wang
Summary: This study focuses on optimizing pore structure and heteroatom doping to enhance the capacitive storage of carbon cathode. The synthesized P-doped activated carbon (PAC-6) shows a large specific surface area and high P content, leading to outstanding energy-power characteristics. PAC-6 exhibits a high specific capacitance, superior rate capability, and excellent cycling stability, making it a promising candidate for high-performance lithium-ion capacitors.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Zhenxin Zhao, Zonglin Yi, Huijun Li, Rajesh Pathak, Zhewei Yang, Xiaomin Wang, Qiquan Qiao
Summary: The use of Fe3O4/HPC and FeP/HPC as dual-functional structure can enhance the immobilization and catalytic conversion of LiPS, ensuring uniform Li2S deposition and reducing dead sulfur in lithium-sulfur batteries.
Article
Environmental Sciences
Wei-Hsin Chen, Justus Kavita Mutuku, Zhe-Wei Yang, Chii-Jong Hwang, Wen Jhy Lee, Veeramuthu Ashokkumar
Summary: This study aims to investigate the impact of high concentrations of PM2.5 on the transmission of the SAR-CoV-2 virus. Through numerical simulations, it was found that asthmatic airway models have higher deposition efficiencies for contaminated PM2.5 compared to healthy airway models.
ENVIRONMENTAL RESEARCH
(2021)
Article
Chemistry, Physical
Jiexi Wang, Zhiliang Yan, Guochun Yan, Huajun Guo, Xinhai Li, Zhixing Wang, Xiaomin Wang, Zhewei Yang
Summary: A novel spiral graphene was reported as a promising negative electrode material for lithium ion capacitors, showing high plateau capacity and outstanding rate capability, along with the proposed formation mechanism. Additionally, hierarchically porous carbon derived from the same source demonstrated N, O co-doping property and high surface area, making it an ideal capacitive material.
ENERGY STORAGE MATERIALS
(2021)
Article
Chemistry, Analytical
Zhe-Wei Yang, Thi-Thu-Hien Pham, Chin-Chi Hsu, Chi-Hsiang Lien, Quoc-Hung Phan
Summary: This article proposes a graphene-based surface plasmon resonance prism coupler sensor for rapid detection of immunoglobulin G antibodies. The feasibility of the sensor is demonstrated through experiments, showing high resolution and response time.
Article
Chemistry, Inorganic & Nuclear
Qianrui Zhao, Zhiwen Tang, Yuede Pan, Jingjing Han, Jinbiao Yang, Yongqiang Guo, Xiangqian Lai, Zhewei Yang, Gang Li
Summary: The solubility product constant (K-sp) is an important concept in inorganic chemistry that determines the solubility of ionic compounds. K-sp guided precipitation reactions are useful for obtaining solid materials or removing unwanted ions from solutions. The K-sp gap between two solids triggers precipitation transformation reactions, and this phenomenon can be applied to prepare transition metal sulfides from corresponding hydroxides in sodium sulfide solutions.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
Yao Jia, Zhe-wei Yang, Hui-jun Li, Yong-zhen Wang, Xiao-min Wang
Summary: The reduced graphene oxide (rGO)-encapsulated MnO microspheres have shown excellent cycling stability and rate performance, attributed to the uniform rGO coating providing continuous pathways for electron transport and the mesoporous structure providing numerous migration paths for Li-ions. The MnO/rGO//activated carbon (AC) LICs exhibit high energy density and capacity retention after a large number of cycles, indicating enhanced Li+ intercalation offsetting the kinetic imbalance between the two electrodes.
NEW CARBON MATERIALS
(2021)
Review
Chemistry, Physical
Guangchao Li, Zhewei Yang, Zhoulan Yin, Huajun Guo, Zhixing Wang, Guochun Yan, Yong Liu, Lingjun Li, Jiexi Wang
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Physical
Tianyu Chen, Zhibin Lu, Guangjin Zeng, Yongmin Xie, Jie Xiao, Zhifeng Xu
Summary: The study introduces a high-performance LSGM electrolyte-supported tubular DC-SOFC stack for portable applications, which shows great potential in developing into high-performing, efficient, and environmentally friendly portable power sources for distributed applications.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Wenbin Tong, Yili Chen, Shijie Gong, Shaokun Zhu, Jie Tian, Jiaqian Qin, Wenyong Chen, Shuanghong Chen
Summary: In this study, a three-dimensional porous NiO interface layer with enhanced anode dynamics is fabricated, forming a Schottky contact with the zinc substrate, allowing rapid and uniform zinc plating both inside and below the interface layer. The resulting NiO@Zn exhibits exceptional stability and high capacity retention.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yafeng Bai, Kaidi Li, Liying Wang, Yang Gao, Xuesong Li, Xijia Yang, Wei Lu
Summary: In this study, a flexible zinc ion supercapacitor with gel electrolytes, porous alpha-MnO2@reduced graphene oxide cathode, and activated carbon/carbon cloth anode was developed. The device exhibits excellent electrochemical performance and stability, even at low temperatures, with a high cycle retention rate after 5000 cycles.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Anmol Jnawali, Matt D. R. Kok, Francesco Iacoviello, Daniel J. L. Brett, Paul R. Shearing
Summary: This article presents the results of a systematic study on the electrochemical performance and mechanical changes in two types of commercial batteries with different anode chemistry. The study reveals that the swelling of anode layers in batteries with silicon-based components causes deformations in the jelly roll structure, but the presence of a small percentage of silicon does not significantly impact the cycling performance of the cells within the relevant state-of-health range for electric vehicles (EVs). The research suggests that there is room for improving the cell capacities by increasing the silicon loading in composite anodes to meet the increasing demands on EVs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yohandys A. Zulueta, My Phuong Pham-Ho, Minh Tho Nguyen
Summary: Advanced atomistic simulations were used to study ion transport in the Na- and K-doped lithium disilicate Li2Si2O5. The results showed that Na and K doping significantly enhanced Li ion diffusion and conduction in the material.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Zongying Han, Hui Dong, Yanru Yang, Hao Yu, Zhibin Yang
Summary: An efficient phase inversion-impregnation approach is developed to fabricate BaO-decorated Ni8 mol% YSZ anode-supported tubular solid oxide fuel cells (SOFCs) with anti-coking properties. BaO nanoislands are successfully introduced inside the Ni-YSZ anode, leading to higher peak power densities and improved stability in methane fuel. Density functional theory calculations suggest that the loading of BaO nanoislands facilitates carbon elimination by capturing and dissociating H2O molecules to generate OH.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Suresh Mamidi, Dan Na, Baeksang Yoon, Henu Sharma, Anil D. Pathak, Kisor Kumar Sahu, Dae Young Lee, Cheul-Ro Lee, Inseok Seo
Summary: Li-CO2 batteries, which utilize CO2 and have a high energy density, are hindered in practical applications due to slow kinetics and safety hazards. This study introduces a stable and highly conductive ceramic-based solid electrolyte and a metal-organic framework catalyst to improve the safety and performance of Li-CO2 batteries. The optimized Li-CO2 cell shows outstanding specific capacity and cycle life, and the post-cycling analysis reveals the degradation mechanism of the electrodes. First-principles calculations based on density functional theory are also performed to understand the interactions between the catalyst and the host electrode. This research demonstrates the potential of MOF cathode catalyst for stable operation in Li-CO2 batteries.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Ganghua Xiang, Zhihuan Qiu, Huilong Fei, Zhigang Liu, Shuangfeng Yin, Yuen Wu
Summary: In this study, a CeFeOx-supported Pt single atoms and subnanometric clusters catalyst was developed, which exhibits enhanced catalytic activity and stability for the preferential oxidation of CO in H2-rich stream through synergistic effect.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Dimitrios Chatzogiannakis, Marcus Fehse, Maria Angeles Cabanero, Natalia Romano, Ashley Black, Damien Saurel, M. Rosa Palacin, Montse Casas-Cabanas
Summary: By coupling electrochemical testing to operando synchrotron based X-ray absorption and powder diffraction experiments, blended positive electrodes consisting of LiMn2O4 spinel (LMO) and layered LiNi0.5Mn0.3Co0.2O2 (NMC) were studied to understand their redox mechanism. It was found that blending NMC with LMO can enhance energy density at high rates, with the blend containing 25% LMO showing the best performance. Testing with a special electrochemical setup revealed that the effective current load on each blend component can vary significantly from the nominal rate and also changes with SoC. Operando studies allowed monitoring of the oxidation state evolution and changes in crystal structure, in line with the expected behavior of individual components considering their electrochemical current loads.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Chiara Cementon, Daniel Dewar, Thrinathreddy Ramireddy, Michael Brennan, Alexey M. Glushenkov
Summary: This Perspective discusses the specific power and power density of lithium-ion capacitors, highlighting the fact that their power characteristics are often underestimated. Through analysis, it is found that lithium-ion capacitors can usually achieve power densities superior to electrochemical supercapacitors, making them excellent alternatives to supercapacitors.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Weihao Wang, Hao Yu, Li Ma, Youquan Zhang, Yuejiao Chen, Libao Chen, Guichao Kuang, Liangjun Zhou, Weifeng Wei
Summary: This study achieved an improved electrolyte with excellent low-temperature and high-voltage performance by regulating the Li+ solvation structure and highly concentrating it. The electrolyte exhibited outstanding oxidation potential and high ionic conductivity under low temperature and high voltage conditions, providing a promising approach for the practical application of high-voltage LIBs.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Martin Bures, Dan Gotz, Jiri Charvat, Milos Svoboda, Jaromir Pocedic, Juraj Kosek, Alexandr Zubov, Petr Mazur
Summary: Vanadium redox flow battery is a promising energy storage solution with long-term durability, non-flammability, and high overall efficiency. Researchers have developed a mathematical model to simulate the charge-discharge cycling of the battery, and found that hydraulic connection of electrolyte tanks is the most effective strategy to reduce capacity losses, achieving a 69% reduction.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
M. Rodriguez-Gomez, J. Campo, A. Orera, F. de La Fuente, J. Valenciano, H. Fricke, D. S. Hussey, Y. Chen, D. Yu, K. An, A. Larrea
Summary: In this study, we analysed the operando performance of industrial lead cells using neutron diffraction experiments. The experiments revealed the evolution of different phases in the positive electrode, showed significant inhomogeneity of phase distribution inside the electrode, and estimated the energy efficiency of the cells.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Jiawei Liu, Chenpeng Wang, Yue Yao, Hao Ye, Yinglong Liu, Yingli Liu, Xiaoru Xu, Zhicong Chen, Huazheng Yang, Gang Wu, Libin Lei, Chao Wang, Bo Liang
Summary: The study focuses on utilizing double conductive Ni-pads as anode collectors in micro-tubular solid oxide fuel cells. The simulation results show excellent performance and stability of DCNPs, and also highlight the potential applications in various fields.
JOURNAL OF POWER SOURCES
(2024)
Article
Chemistry, Physical
Yang Wang, Kangjie Zhou, Lang Cui, Jiabing Mei, Shengnan Li, Le Li, Wei Fan, Longsheng Zhang, Tianxi Liu
Summary: This study presents a polyimide sandwiched separator (s-PIF) for improving the cycling stability of Li-metal batteries. The s-PIF separator exhibits superior mechanical property, electrolyte adsorption/retention and ion conductivity, and enables dendrite-free Li plating/stripping process.
JOURNAL OF POWER SOURCES
(2024)