Article
Chemistry, Multidisciplinary
Jiamin Ma, Jiale Xia, Zhong Liang, Xiaoyun Chen, Yaping Du, Chun-Hua Yan
Summary: Layered double hydroxides (LDHs) are promising electrodes for supercapacitors due to their adjustable composition and superior high capacity, but their experimental specific capacity is lower than theoretical value. Intercalating large-sized anions to increase interlayer spacing is crucial for performance improvement, as demonstrated in a study where a cobalt-nickel LDH hollowcage intercalated with 1,4-benzenedicarboxylic acid showed improved specific capacity and rate performance. The sample with the largest layer spacing achieved a maximum specific capacity of 229 mA h g(-1) at 1 A g(-1), and a hybrid supercapacitor with this sample showed good energy density and cycle stability.
Article
Energy & Fuels
Yu-Cheng Hsiao, Chen-Hao Liao, Chia-Shuo Hsu, Sibidou Yougbar, Lu-Yin Lin, Yung-Fu Wu
Summary: In this study, manganese cobalt layered double hydroxide (MnCo-LDH) was incorporated into sulfur-doped NiCo-LDH (S-NiCo-LDH) on a nickel foam (NF) substrate via a hydrothermal process. The resulting composite exhibited a favorable morphology with high specific surface area and well-established pore structure, leading to a specific capacitance of 1581.3 F/g. When incorporated into a battery super-capacitor hybrid, the MnCo-LDH/S-NiCo-LDH composite demonstrated a wide potential window, high energy density, and excellent cyclic stability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Energy & Fuels
Wending Zhou, Xuehua Yan, Wenjing Zhang, Yanli Li, Yihan Zhu, Mengyang Zhang, Wen Zhu, Xiaonong Cheng
Summary: A novel electrode material with a three-dimensional interconnected nanostructure, NiV-LDH@Co2NiO4, was successfully developed, showing outstanding electrochemical performance, providing new insights and solutions for the development of hybrid supercapacitors.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Min Jiang, Yunfeng Zhu, Yana Liu, Jiguang Zhang, Yao Zhang, Yicheng Sun, Peng Zeng, Jie Hou, Yuke Ren, Zhixin Ba, Liquan Li
Summary: Ni-Co LDHs were synthesized with different Ni/Co molar ratios and used as cathode materials for Ni-MH batteries. Compared with Ni(OH)2, Ni-Co LDHs electrodes exhibited higher discharge capacity and cycling stability. The NC 2 electrode with a Ni/Co molar ratio of 4:1 showed the highest discharge capacity and capacity retention after 200 cycles. The unique morphology and enlarged interlayer spacing of Ni-Co LDHs promoted ion transmission and charge transfer, while their structural stability and synergies with Co-Co LDHs were important for electrochemical performances.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Zhongyun Xu, Lirong Kong, Hui Wang, Xiaoping Shen, S. Premlatha
Summary: In this study, flower-like nickel-cobalt-layered double hydroxide nanosheets (f-NiCo-LDH) were deposited on porous graphitic carbon nitride (g-CN) using F127 as a structure modulating agent and a refluxing method. The resulting f-NiCo-LDH/g-CN2 composite exhibited high specific capacitance, high rate capability, and stable cycling behavior, making it a promising electrode material for supercapacitors.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Zuwei Li, Xiaoman Wang, Ziheng Wang, Luchi Wang, Yuhang Guo, Cui Zhou, Xianjun Li, Kun Du, Yongfeng Luo
Summary: A novel type of electrode material for high-performance hybrid supercapacitors is designed in this paper, showing excellent specific capacity and cycling stability. The composite electrode demonstrates high energy density and power density, making it a promising candidate for energy storage applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Valerii Kotok, Peter Ondrejka, Miroslav Mikolasek, Michaela Sojkova, Patrik Novak, Maros Gregor, Vadym Kovalenko, Kostyantyn Sukhyy
Summary: The self-decomposition reaction of the nickel ammonia complex was used for the formation of nickel hydroxide on nickel foam, and the formation method was modified by the addition of polyvinyl pyrrolidone (PVP) and the electrochemical or chemical activation with cobalt hydroxide. In all cases, Ni(OH)2 nanoflakes were formed, and the chemical activation process resulted in the precipitation of flower-like Co(OH)2 particles among the nanoflakes. It was found that the presence of PVP during the nickel ammonia complex decomposition suppressed the highly branched particles, leading to enhanced capacitive properties of the formed electrode at high current densities. The highest capacitance of 1408 F/g at 1 A/g was achieved for the sample precipitated with the presence of PVP and further chemical activation with cobalt.
Article
Chemistry, Physical
Hong Jia, Xinyu Zhu, Tingting Song, Jinping Pan, Feng Peng, Longhua Li, Yu Liu
Summary: In this study, a fibrous hierarchical nanocomposite composed of carbon microfibers covered with a layer of metal-organic framework derived from nickel-cobalt layered double-hydroxide nanosheets decorated with (NiCo)Se-2 nanoparticles was fabricated using an in-situ self-templated method. The nanocomposite exhibited improved electrical conductivity, high capacity, and structural stability, leading to an impressive capacity of 1394.2 F g(-1) at 1 A g(-1) and high energy and power densities in a hybrid supercapacitor. These results suggest the potential of the hierarchical nanocomposite as a powerful electrode for advanced next-generation supercapacitors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yung-Fu Wu, Yu-Cheng Hsiao, Chen-Hao Liao, Chia-Shuo Hsu, Sibidou Yougbare, Lu-Yin Lin
Summary: In this study, sulfur-doped nickel and cobalt layered double hydroxide and polypyrrole nanotubes composites were successfully designed as efficient active materials for battery supercapacitors. The optimized design achieved high specific capacitance and energy density, as well as good cycle stability and Coulombic efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Energy & Fuels
Yezeng He, Didi Liu, Houqiang Zhao, Jiemei Wang, Yanwei Sui, Jiqiu Qi, Zheng Chen, Ping Zhang, Changjiu Chen, Dongdong Zhuang
Summary: The study successfully prepared C/NiMn-LDH/Ni3S2 electrode material, which maintained a high capacitance even after 5000 cycles, and the two-electrode device assembled with activated carbon showed excellent specific energy.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Liu Wan, Tao Jiang, Yan Zhang, Jian Chen, Mingjiang Xie, Cheng Du
Summary: Sluggish kinetics and poor structural stability are two main obstacles in the exploration of transition metal selenides (TMSs) for supercapacitors. In this study, a core-shell cobalt iron selenide (CoFe2Se4) @ cobalt nickel carbonate hydroxide (CoNi-CH) heterostructure was directly fabricated on carbon cloth. The heterostructure combines the highly conductive CoFe2Se4 for rapid electron transfer and the highly electroactive CoNi-CH for multiple redox reactions. The CoFe2Se4@CoNi-CH electrode exhibits increased specific capacity and enhanced rate capability compared to pure CoFe2Se4 and CoNi-CH. Furthermore, a hybrid supercapacitor utilizing the CoFe2Se4@CoNi-CH cathode and porous carbon anode achieves a high energy density and excellent durability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Congcong Hou, Tingting Li, Zhiming Zhang, Chunrui Chang, Libao An
Summary: The nickel-cobalt layered double hydroxide/carbon nanotubes composites with 3D hollow nanocages structure exhibit excellent electrochemical performance, making them promising for supercapacitor applications.
Article
Chemistry, Physical
Mohammad Pourshahmir, Shahram Ghasemi, Sayed Reza Hosseini
Summary: This study synthesized a nanohybrid material based on nickel-cobalt layered double hydroxide (LDH), nickel-cobalt sulfide, and graphitic carbon nitride (g-C3N4), which exhibited high specific capacitance and excellent stability, making it a promising candidate for energy storage.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Shrikant Sadavar, Navnath S. Padalkar, Rohini B. Shinde, Saji T. Kochuveedu, Umakant M. Patil, Akash S. Patil, Ravindra N. Bulakhe, Chandrakant D. Lokhande, Insik In, Rahul R. Salunkhe, Jayavant L. Gunjakar
Summary: An exfoliation-reassembling process was used to develop mesoporous intercalative nanohybrids of cationic 2-D cobalt-chromium-layered double hydroxide nanosheets and polyoxovanadate anions, which exhibited promising performance in asymmetric supercapacitors devices.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Yatao Wu, Hao Chen, Yingzhuo Lu, Jin Yang, Xinqiang Zhu, Yu Zheng, Gaobo Lou, Yitian Wu, Qiang Wu, Zhehong Shen, Zhenghui Pan
Summary: Rational design of micro-nano morphology and suitable crystalline structure are essential for metal hydroxides in advanced electrodes for flexible supercapacitors. The novel wisteria flower-like microstructure of cobalt-nickel double hydroxide (CoNi-DH) on carbon cloth shows high specific area and abundant active sites, resulting in highly effective pseudocapacitive energy storage and high-rate capability. The optimal CoNi-DH-S@CC electrode exhibits superior specific capacity and high-rate capability, surpassing other similar metal hydroxides, and shows promising potential in asymmetric supercapacitors with impressive capacity, energy density, and cycle life.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Inorganic & Nuclear
Hongxing Jin, Daqing Yuan, Shengyun Zhu, Xiaohong Zhu, Jiliang Zhu
DALTON TRANSACTIONS
(2018)
Article
Chemistry, Multidisciplinary
Jianpeng Liu, Chang Cheng, Tianle Wang, Juncheng Zhu, Zhong Li, Guang Ao, Wenliang Zhu, Giuseppe Pezzotti, Jiliang Zhu
Summary: This paper demonstrates the successful application of highly dispersed sulfur nanoparticles as the cathode material for lithium-sulfur batteries. The sulfur nanoparticles are efficiently prepared using an eco-friendly precipitation method and loaded on graphene oxide-cetyltrimethylammonium bromide through molecular grafting. The resulting cathodes exhibit superior electrochemical performance and have been used to power a four-axis propeller drone for a long flight at high altitudes, demonstrating the practical applicability as aviation batteries.
Article
Chemistry, Multidisciplinary
Wenliang Zhu, Kohei Okada, Naoki Hoshida, Yumi Yoshida, Alessandro Martucci, Jiliang Zhu, Elia Marin, Giuseppe Pezzotti
Summary: In this study, Raman and X-ray photoelectron spectroscopies were used to analyze the compositional and structural variations of activated carbon (AC) generated from different carbonate sources in three types of systems, PVDF/M2CO3 (M = Li, Na, and K). The results show that the structure of AC strongly depends on the type and content of the initial carbonate, which is determined by practical dehydrofluorination reactions and oxygen incorporation in AC. This study provides insights into the PVDF dehydrofluorination process and the formation of activated carbon, contributing to optimizing the material performance of percolative composites for flexible energy storage applications.
Article
Chemistry, Multidisciplinary
Jianpeng Liu, Wenchang Zhang, Chang Cheng, Juncheng Zhu, Tianle Wang, Kun Ni, Zifeng Lin, Zefeng Guan, Yanwu Zhu, Jiliang Zhu
Summary: This study presents a rapid reduction method for graphene oxide (GO) by bringing GO foam into contact with semi-molten metals such as tin (Sn) and lithium (Li). The electrical resistance of GO foam is significantly reduced by its interaction with these metals, even in dry air. By employing tin foil and calcination, the rGO with remarkably lower electrical resistivity is fabricated, demonstrating its potential as an electrode material for lithium-sulfur batteries.
Article
Chemistry, Multidisciplinary
Zhicheng Shi, Yuan Yuan, Qindan Xiao, Zhong Li, Jiliang Zhu
Summary: In this study, carbonate doped NiCo layered double hydroxide (PANI-NCLDH/CO32-) grown on polyaniline was obtained using a simple room temperature titration. The synthesized electrode showed high specific capacitance and retention rates, indicating good rate performance and electrochemical stability. These findings may contribute to the development of electrodes with high electrochemical performances.
Article
Chemistry, Physical
Zhicheng Shi, Juncheng Zhu, Zhong Li, Qindan Xiao, Jiliang Zhu
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Materials Science, Multidisciplinary
Pengfei Kong, Yunti Pu, Ping Ma, Jiliang Zhu
Article
Physics, Applied
Wenliang Zhu, Takaaki Higashi, Jiliang Zhu, Elia Marin, Giuseppe Pezzotti
JOURNAL OF APPLIED PHYSICS
(2020)
Article
Chemistry, Multidisciplinary
Yuan Yuan, Duanfu Long, Zhong Li, Jiliang Zhu
Article
Chemistry, Physical
Wenliang Zhu, Kohei Okada, Zhong Li, Jiliang Zhu, Elia Marin, Giuseppe Pezzotti
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2019)
Article
Chemistry, Inorganic & Nuclear
Guo Du, Zifan Zeng, Bangqing Xiao, Dengzhi Wang, Yuan Yuan, Xiaohong Zhu, Jiliang Zhu
DALTON TRANSACTIONS
(2017)