Article
Energy & Fuels
Mohammad Ashourdan, Abolfazl Semnani, Foroozan Hasanpour, Seyyed Ebrahim Moosavifard
Summary: Transition metal oxides show promise for energy storage due to their redox reactions and stability. CuMnO2 nanocrystals and CuMnO2/GQD composite were synthesized and used in a new supercapacitor, with GQD improving specific capacity and efficiency. The CuMnO2/GQD nanocomposite showed higher stability and capacity retention after 5000 charge/discharge cycles compared to CuMnO2 nanoparticles.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Damin Lee, Hyun Woo Lee, Sanjay Mathur, Kwang Ho Kim
Summary: The study investigates the performance of glycerol-MnCo2S4 electrode prepared by hydrothermal method in supercapacitors, demonstrating high specific capacitance, cycling stability, and energy density, making it a promising positive electrode material for high-performance asymmetric supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Huihui Yang, Yuxuan Sun, Cong Wang, Yafeng Li, Mingdeng Wei
Summary: The ternary MnCoNi layered double hydroxides (MnCoNi-LDH) synthesized using a one-pot hydrothermal method exhibit excellent capacitance performance and cycling stability. The unique nanostructure and synergistic effect among metal ions provide high specific surface area, abundant redox active sites, and enhanced ion transmission speed and conductivity.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Ting Xing, Mingqing Sun, Shiying Guo, Oliver Harris, Yiren Zhong, Lingyu Tang, Shengli Zhang, Mei Yang, Hui Xia
Summary: This study successfully developed a high-performance anode free from Mn(II) dissolution by smartly confining manganese monoxide into nitrogen-rich carbon nanosheets, achieving high specific capacitance and excellent cycling stability, which can be used in aqueous asymmetric supercapacitors (ASCs). The ASC with this anode delivers a remarkably high specific energy, outperforming products with carbon anodes.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Applied
Lengyuan Niu, Lijin Yan, Zhengwei Lu, Yinyan Gong, Taiqiang Chen, Can Li, Xinjuan Liu, Shiqing Xu
Summary: In this study, delta-MnO2 with alkali-ion associated manganese vacancies were fabricated by a hydrothermal reaction, and the correlation between their electronic structure and pseudocapacitance were systematically investigated. The introduction of cation vacancies resulted in significant changes in the morphology of MnO2 and enhanced its conductivity, pseudocapacitance, and rate capability. Further theoretical calculations confirmed that cation vacancies can increase carrier concentration and improve the conductivity and pseudocapacitance of MnO2, providing a promising approach for the development of active and durable electrode materials.
JOURNAL OF ENERGY CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
Zhongbing Wang, Jingyuan Fang, Yonghao Hao, Chunnian Chen, Dawei Zhang
Summary: In this study, Mn3O4 supercapacitor electrode material with specific morphology was synthesized using a two-step hydrothermal method. The combination of nanoparticles and nanorods enhanced the electrochemical performance, demonstrating good cyclic stability and energy storage capability.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Review
Energy & Fuels
Mohammad Nazmus Sakib, Saifuddin Ahmed, S. M. Sultan Mahmud Rahat, Sanzeeda Baig Shuchi
Summary: Manganese-based supercapacitors are gaining attention for their low manufacturing cost and environmental friendliness. By utilizing various surface modifications and structural changes, the performance of the supercapacitors can be enhanced.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Chemistry, Physical
Qianlan Ke, Yuhui Zhang, Yuanheng Fu, Chenxi Yang, Fan Wu, Zhongxiu Li, Yi Wei, Kun Zhang
Summary: In this study, we investigated the electrochemical performance of a carbon fabric-based supercapacitor coated with MnOx@rGO nanohybrids using a simple one-step hydrothermal method. The effect of the mass ratio of MnOx to rGO on the electrochemical properties was studied. It was found that the supercapacitor with a mass ratio of 0.8:1 for MnO@rGO exhibited a specific capacitance of 831.25 mF cm(-2) at a current density of 0.1 mA cm(-2) when loaded with 5.40 mg cm(-2) of MnO@rGO nanohybrids on carbon fabric. Furthermore, it showed a long-term cycling capacitance retention of 97.2% after 10,000 charge-discharge cycles at a current density of 0.4 mA cm(-2). The high electrochemical performance is speculated to be attributed to the strong interfacial bonding between the hierarchical architecture of MnO@rGO nanohybrids and carbon fabric.
Article
Physics, Applied
Kazuma Akikubo, Masaru Tachibana
Summary: In this study, TiO2 nanowall structures were fabricated using carbon nanowall templates. The Ti-contained CNW templates were synthesized and then annealed with additional Ti coatings to achieve the desired structure, confirming the potential of TiO2 NW as a photoanode for water splitting through photoelectrochemical measurements.
JAPANESE JOURNAL OF APPLIED PHYSICS
(2021)
Article
Energy & Fuels
Hao Gui, Jian Ding, Ronghua Wang, Minquan Zhou, Yongsheng Xiang, Xinlu Li
Summary: The development of aqueous supercapacitors has been hindered by the limited voltage window and low energy density. This study successfully expands the electrode voltage range and increases the specific capacitance of supercapacitors by taking advantage of the additional overpotential of the hydrogen and oxygen evolution reactions.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Energy & Fuels
M. Geerthana, S. Prabhu, R. Ramesh
Summary: Transition metal oxide decorated graphene nanosheets have shown great potential in electrochemical energy storage, especially in supercapacitors. In this study, ternary alpha-Fe2O3/MnO2/rGO composites were synthesized using a solvothermal route and demonstrated excellent performance in energy storage devices.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Olga A. Bulavchenko, Tatyana N. Afonasenko, Alexey R. Osipov, Alena A. Pochtar, Andrey A. Saraev, Zahar S. Vinokurov, Evgeny Yu Gerasimov, Sergey Tsybulya
Summary: The study of Mn-Ce oxide catalysts active in CO oxidation revealed that the catalyst containing ca. 50 at.% Mn exhibited the best catalytic performance due to high specific surface area, formation of solid solution, and maximum content of the solid solution.
Article
Energy & Fuels
Ozlem Budak, Ozlem Uguz, Atif Koca
Summary: In this study, a one-step electrodeposition method was used to fabricate binder free nickel cobalt oxide and nickel cobalt oxide reduced graphene oxide composite nanosheets, which exhibited excellent electrochemical performance with high specific capacitance and superior stability. Moreover, the potential of the NCO-rGO composite nanosheets in practical applications was demonstrated by constructing an asymmetric supercapacitor.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Wenjuan Yang, Igor Zhitomirsky
Summary: This investigation addresses the challenges in the development of efficient nanostructured Mn3O4 cathodes for supercapacitors. A new approach using rhamnolipids as a capping agent and co-dispersant for Mn3O4 particles and carbon nanotubes has been developed to enhance the performance of the electrodes.
Article
Materials Science, Multidisciplinary
Xinhao Zhao, Baocheng Liu, Peng Pan, Zhengchun Yang, Jie He, Huayi Li, Jun Wei, Zongsheng Cao, Honghao Zhang, Jiayuan Chang, Qiwen Bao, Xin Yang
Summary: This paper presents a new ink for 3D printing supercapacitor electrodes, achieving a mass-specific capacitance of 422 F g(-1) and an energy density of 19.35 Wh kg(-1). The extrusion 3D printing method allows for practical applications like powering LEDs and charging a mobile phone, providing an economical and efficient way to prepare supercapacitors with special structures for large-scale applications.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Electrochemistry
Puheng Yang, Honglei Li, Xin Wei, Shichao Zhang, Yalan Xing
ELECTROCHIMICA ACTA
(2018)
Article
Electrochemistry
Hao Wu, Honglei Li, Puheng Yang, Yalan Xing, Shichao Zhang
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2018)
Article
Electrochemistry
Baohai Liu, Wenxu Wang, Honglei Li, Zhixu Jian, Yalan Xing, Shichao Zhang
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2018)
Article
Chemistry, Physical
Yalan Xing, Shengbin Wang, Baizeng Fang, Ge Song, David P. Wilkinson, Shichao Zhang
JOURNAL OF POWER SOURCES
(2018)
Article
Chemistry, Applied
Yalan Xing, Shengbin Wang, Baizeng Fang, Yefei Feng, Shichao Zhang
MICROPOROUS AND MESOPOROUS MATERIALS
(2018)
Article
Electrochemistry
Honglei Li, Yanbiao Ren, Puheng Yang, Zhixu Jian, Wenxu Wang, Yalan Xing, Shichao Zhang
ELECTROCHIMICA ACTA
(2019)
Article
Electrochemistry
Zhixu Jian, Honglei Li, Rui Cao, Heliang Zhou, Huaizhe Xu, Guangjin Zhao, Yalan Xing, Shichao Zhang
ELECTROCHIMICA ACTA
(2019)
Article
Chemistry, Physical
Jiajie Li, Zicheng Wang, Huaizhe Xu, Honglei Li, Puheng Yang, Zhixu Jian, Yalan Xing, Shichao Zhang, Yanbiao Ren
SOLID STATE IONICS
(2019)
Article
Materials Science, Multidisciplinary
Lili Zhao, Ge Song, Honglei Li, Puheng Yang, Jun Xia, Jiajie Li, Shichao Zhang, Yalan Xing, Guangjin Zhao
MATERIALS RESEARCH EXPRESS
(2019)
Article
Materials Science, Ceramics
Honglei Li, Zhixu Jian, Puheng Yang, Jiajie Li, Yalan Xing, Shichao Zhang
CERAMICS INTERNATIONAL
(2020)
Article
Nanoscience & Nanotechnology
Jiajie Li, Zicheng Wang, Lin Yang, Yunhui Liu, Yalan Xing, Shichao Zhang, Huaizhe Xu
Summary: The researchers designed an innovative configuration for lithium-air batteries, utilizing a 3D open-structured cathode and a composite lithium anode encased in a gel electrolyte to achieve stable operation in high humidity environments. This battery can achieve over 100 stable cycles and remains operational under extreme conditions, demonstrating great potential for flexible electronics applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Jiajie Li, Heliang Zhou, Zhixu Jian, Honglei Li, Xianggang Guan, Yalan Xing, Shichao Zhang, Huaizhe Xu
Summary: The rational design of a three-dimensional open-structured Co3O4@MnO2 heteromatrix as a bifunctional catalytic cathode material for lithium-oxygen batteries greatly enhances the electrochemical performance, surpassing batteries based on low-dimensional and closed-ended catalysts. The enhanced performance is attributed to the bifunctional catalyst and the 3D open structure of the Co3O4@MnO2 heteromatrix, which facilitates the homogeneous and fluffy deposition of discharge products Li2O2, showing promising applications in both LOBs and flexible/wearable Li-air batteries.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Zhixu Jian, Shichao Zhang, Xianggang Guan, Jiajie Li, Honglei Li, Wenxu Wang, Yalan Xing, Huaizhe Xu
Article
Chemistry, Physical
Jun Xia, Ruixing Li, Tianshuai Wang, Puheng Yang, Heliang Zhou, Jiajie Li, Gangyi Xiong, Yalan Xing, Shichao Zhang
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Chemistry, Multidisciplinary
Wei Xu, Huimei Pang, Heliang Zhou, Zhixu Jian, Riming Hu, Yalan Xing, Shichao Zhang
Article
Electrochemistry
Wenhai Tan, Youfeng Zhang, Yichen Zhang, Yanbo Ma, Chao Zhao, Yinling Wang
Summary: This study synthesized Co3O4/CC cathode materials with excellent performance for aqueous zinc-ion batteries by varying the reactant concentration. The Co3O4/CC nanowires exhibited uniform distribution, regular surface, and small size on the carbon cloth. The battery assembled with Co3O4/CC material synthesized at a reactant concentration ratio of 2:1 showed better performance, with high discharge specific capacity and capacity retention rate.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)
Article
Electrochemistry
T. Salahuddin, Iqra Kousar, Mair Khan, M. Munawwar Iqbal Ch
Summary: This paper investigates the dynamics of fluid motion powered by cilia within a curved channel and examines the chemical reactions occurring in the presence of electro-osmotic impact. The findings offer insights into various flow characteristics and present a method for simulating non-Newtonian fluid models in three dimensions. Additionally, the model has potential applications in the development of micro-vascular chips, which could be crucial for diagnosing blood-related issues.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)
Review
Electrochemistry
Ahmed Abou-Shady
Summary: Soil electrokinetic (SEK) is a significant technology with various applications in fields such as soil remediation, pollutant removal, and water regulation. This review summarizes the recent advancements in SEK, focusing on electrode modifications and material additives, and suggests future research directions.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2024)