Article
Chemistry, Physical
Feng Wei, Huadong Tian, Pengmei Chen, Yaohui Lv, Jiarui Huang
Summary: Carbonaceous zinc ion hybrid capacitors (CZHCs) have gained considerable attention due to their high energy density from zinc-ion batteries and the excellent safety and high power density from supercapacitors. However, the complex preparation process for the carbon cathode necessitates the development of a simple and efficient method. This study demonstrates the synthesis of porous carbon nanosheets (C-Xs) through a dual-template strategy and K2CO3 activation of anthracene molecules, resulting in layered sheet-like structures with high surface area. The Zn-C-Xs ZHC cathode exhibits outstanding zinc storage properties, achieving a discharge capacity of 121.7 mAh g(-1), maximum energy density of 109.3 Wh kg(-1), and power density of 15.6 kW kg(-1) in a 3M ZnSO4 electrolyte. After 30,000 cycles, it maintains a capacity retention of 96.2% and a coulombic efficiency close to 100%. This work presents a simple and efficient route for the synthesis of carbon nanosheet cathodes using a dual-template strategy for ZHCs.
APPLIED SURFACE SCIENCE
(2023)
Article
Agricultural Engineering
Heyang Liu, Hansheng Chen, Kaiyuan Shi, Fei Zhang, Shengwei Xiao, Lingqi Huang, He Zhu
Summary: This study demonstrates the fabrication of porous carbon cathode materials with high specific capacitance and energy density for zinc ion capacitors. The electrochemical performance of these materials is superior to other biomass-derived porous carbon cathodes. The underlying mechanism is evaluated and the feasibility of using lignin resources for high-performance ZICs is presented.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Review
Polymer Science
Chao Han, Xinyi Wang, Jian Peng, Qingbing Xia, Shulei Chou, Gang Cheng, Zhenguo Huang, Weijie Li
Summary: The hybrid ion capacitor (HIC) combines the intercalation mechanism of a lithium-ion battery anode with the double-layer mechanism of the cathode, bridging the gap between batteries and supercapacitors. Two-dimensional (2D) carbon materials are promising candidates for hybrid capacitors due to their unique properties. This review discusses the role of 2D carbon in hybrid capacitors, recent progress in their application, and challenges in their future development.
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)
Review
Engineering, Environmental
Feng Wei, Yangsen Zeng, Yuchen Guo, Jun Li, Shijie Zhu, Shengtao Gao, Hanfang Zhang, Xiaojun He
Summary: Under the double carbon background of carbon peak and carbon neutrality, the use of energy storage and conversion devices (ESCDs) becomes more and more important. Zinc ion hybrid capacitors (ZIHCs) are considered as the most promising candidate due to their excellent safety, environmentally friendly nature, and superior physicochemical stability. This review provides a systematic overview of the history and working mechanism of hybrid capacitors, as well as a detailed exploration of the preparation process, structural characteristics, electrochemical properties of heteroatom-doped carbon materials, and the impact of various heteroatoms on the mechanism of zinc ion storage. Furthermore, the review elucidates the current challenges and future investigable directions of ZIHCs, providing theoretical guidance for their application.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Nilesh R. Chodankar, Swati J. Patil, Sangjin Lee, Jaeho Lee, Seung-Kyu Hwang, Pragati A. Shinde, Indrajit Bagal, Smita Karekar, Ganji Seeta Rama Raju, Kugalur Shanmugam Ranjith, Deepak P. Dubal, Yun-Suk Huh, Young-Kyu Han
Summary: This study presents a scalable approach to improve the electrochemical properties of aqueous zinc ion hybrid capacitors (ZIHCs) by addressing the deficiencies related to the Zn-anode/electrolyte interface and cathode materials. The use of a modified electrolyte and an oxygen-rich 3D MGC cathode resulted in high specific energy and power capability, as well as excellent cycling durability. These findings contribute to the practical application of highly efficient ZIHCs.
Article
Chemistry, Physical
Lei Yang, Xiaojun He, Yuchen Wei, Hongqiang Li, Yan Yu, Jieshan Qiu
Summary: This research reports on the synthesis of N/P co-doped monolithic hierarchical porous carbon (NPMC) materials for zinc-ion hybrid capacitors (ZHCs). The NPMC materials exhibit excellent electron conduction and a well-developed porous structure. The introduction of ZnI2 into the electrolyte significantly increases the capacity of ZHCs.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Wenli Zhang, Jian Yin, Wenbin Jian, Ying Wu, Liheng Chen, Minglei Sun, Udo Schwingenschlogl, Xueqing Qiu, Husam N. Alshareef
Summary: The research team developed a new strategy to convert sustainable sodium lignosulfonate resources into highly heteroatom-doped porous carbons with high specific surface areas and doping rates, achieving the preparation of lignin-derived porous carbons with relatively high specific surface areas and heteroatom dopings.
Article
Nanoscience & Nanotechnology
Juan Zeng, Liubing Dong, Lulu Sun, Wen Wang, Yinhua Zhou, Lu Wei, Xin Guo
Summary: Flexible solar-charging self-powered units based on printed Zn-ion hybrid micro-capacitors have been developed, showing high specific capacity and energy density. Integration with organic solar cells results in a self-powered system with outstanding energy conversion/storage efficiency and stability.
NANO-MICRO LETTERS
(2021)
Article
Electrochemistry
Shengjuan Li, Yuan Yao, Yu Zhang, Yun Gong, Mingxia Wu, Yuhua Xue, Junhe Yang, Lei Li
Summary: In this study, cobalt-doped trimanganese tetroxide nanoparticles were fabricated and distributed uniformly on a flexible carbon cloth surface to enable large-scale production of high-loading zinc-ion hybrid capacitors (ZIHCs). The liquid ZIHC demonstrated excellent electrochemical performance and high capacity, with an area capacitance of 4102.56 mF cm-2 and a maximum area energy density of 2166.70 mu Wh cm-2, comparable to zinc-ion batteries. The quasi-solid flexible ZIHCs with Co-Mn3O4 cathode and activated carbon anode achieved a high energy density of 672.45 mu Wh cm-2 and high mechanical flexibility, showing potential for developing a new generation of flexible energy storage devices.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Lingqi Huang, Zilong Gu, Wenqing He, Kaiyuan Shi, Liangfen Peng, Zhongyi Sheng, Fei Zhang, Wei Feng, Heyang Liu
Summary: Heteroatom-doped porous carbon materials have been investigated to enhance the energy density of zinc-ion hybrid capacitors. The strategy of using carbon materials with precise quantitative dopants has proven effective in understanding the role of dopants in energy storage. A solvothermal strategy has been demonstrated for the synthesis of polymer microspheres, resulting in durable and highly porous carbon spheres with controlled incorporation of dopants. The synergy of various dopants enhances pseudocapacitance and facilitates the ion storage process.
Article
Materials Science, Multidisciplinary
Jie Liu, Yanan Gao, Chenjie Lou, Yongjin Chen, Xiang Gao, Ligang Xu, Qi Wei, Guangcan Bai, Guoquan Liu, Mingxue Tang
Summary: Hybrid architectures integrating Fe7S8@NC@MoS2 with a three-dimensional heterostructure are designed in this study. The adjustable voids of the material can buffer the volume change during intercalation of metal ions. Additionally, the presence of MoS2 enhances electronic conductivity and metal ion transfer, resulting in improved battery performance.
ACS MATERIALS LETTERS
(2022)
Article
Chemistry, Physical
Xiaohua Zhang, Chao Jiang, Hengxiang Li, Xinyu Gan, Wenjing Shi, Yanzhen Liu, Xiaoyan Yan, Xinxin Zhao, Baosheng Liu
Summary: In this study, three-dimensional activated graphitic carbon spheres (AGCS) were synthesized by activating and graphitizing Fe-tannic acid coordination spheres with the help of KOH. The AGCS with nanosheets-assembled complex intersecting channel system can expose more active sites, which is beneficial for charge storage. Simultaneous activation-graphitization can also solve the trade-off relationship between porosity and conductivity of carbon materials. The optimized AGCS-2, with a large specific surface area, abundant ion-accessible micropores, good electronic conductivity, and moderate oxygen doping, shows excellent performance in zinc-ion hybrid capacitor (ZIHC) with high specific capacity, remarkable energy density, and superior cycling life.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Environmental
Gaobo Lou, Gu Pei, Yitian Wu, Yingzhuo Lu, Yatao Wu, Xinqiang Zhu, Yajun Pang, Zhehong Shen, Qiang Wu, Shenyuan Fu, Hao Chen
Summary: A N, O co-doped two-dimensional carbon nanosheet material is successfully fabricated via one-step combustion conversion of wood for excellent cathode material in zinc ion hybrid supercapacitors. The resulting material shows a uniform structure, high specific surface area, and outstanding electrochemical performance, leading to superior specific capacity, high rate capability, and attractive energy density in ZHS.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Dewei Wang, Shuangyu Wang, Zeming Lu
Summary: The use of potassium thioacetate activation technique to produce S-doped 3D porous carbons (S-3DPCs) for ZHSCs cathodes shows excellent electrochemical performance, with a large specific surface area and a certain amount of sulfur, indicating significant potential for applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
