Article
Chemistry, Physical
Abdul Rehman Akbar, Adil Saleem, Abdur Rauf, Rashid Iqbal, Muhammad Tahir, Gangqiang Peng, Abdul Sammed Khan, Arshad Hussain, Muhammad Ahmad, Mansoor Akhtar, Mumtaz Ali, Chuanxi Xiong, Quanling Yang, Ghaffar Ali, Fude Liu
Summary: In this study, a dually activated carbon cloth is used as the functional current collector to design a high-performance freestanding asymmetric supercapacitor. The integrated electrode shows exceptional capacitance performance and enhanced areal energy and power density. The device exhibits a broad voltage window and extraordinary cycling stability.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Zhi-Ming Shen, Xiao-Jing Luo, Yan-Yan Zhu, Yong-Sheng Liu
Summary: In this study, 3-D nanosheets of NiO-CoO and PPy composite materials are successfully synthesized on the surface of carbon cloth as a supercapacitor electrode using facile AC co-electrodeposition method. The electrode exhibits excellent specific capacitance and cyclic stability, while the asymmetric supercapacitor assembled with this electrode shows high energy density.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Environmental
Jing Wang, Feng Zheng, Yi Yu, Pengfei Hu, Mingjun Li, Jiao Wang, Jifang Fu, Qiang Zhen, Sajid Bashir, Jingbo Louise Liu
Summary: Advanced supercapacitors with improved specific capacitance, long cycling life, high power density, and energy density are fabricated using ternary metal oxides nano-ribbon electrodes. The nano-grafting results in reactive interfaces with interpenetrating channels for efficient ion transport and electron conduction, significantly enhancing the supercapacitive performances.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Paper & Wood
Jincy Parayangattil Jyothibasu, Ruei-Hong Wang, Kenneth Ong, Juping Hillary Lin Ong, Rong-Ho Lee
Summary: Nanostructured manganese dioxide (MnO2) was homogeneously deposited on a regenerated cellulose/functionalized CNT (f-CNT) matrix through a direct redox reaction between potassium permanganate and carbon nanotubes (CNTs) in an acidic medium. The resulting cellulose/f-CNT/MnO2 composite films showed outstanding electrochemical performance as freestanding electrodes for supercapacitors, with a maximal areal capacitance of 7956 mF cm(-2) achieved for a high MnO2 content composite. The symmetric supercapacitor assembled using the cellulose/f-CNT/MnO2 composite film exhibited high capacitance, energy density, and power density. The simple and environmentally friendly synthetic procedure can be readily scaled up for bulk synthesis.
Article
Chemistry, Physical
Hongyan Wang, Lecheng Tian, Maryum Ali, Xin Zhao, Shiyu Han, Zhicai Xing
Summary: This work presents a simple and eco-friendly two-step electrodeposition method to prepare NiCo2S4/MoSx composites. The composites exhibit high specific capacity and good stability, making them promising electrodes for all-solid symmetric supercapacitors.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Arkady N. Redkin, Alena A. Mitina, Eugene E. Yakimov
Summary: Significant progress has been made in the performance of supercapacitors through the development of composite electrodes that combine various charge storage mechanisms. This study proposes a new method for preparing composite binder-free MnO2/MWCNT/Al electrodes for supercapacitors, which demonstrated excellent charge/discharge characteristics and stability to multiple cycles.
Article
Chemistry, Physical
Song Zhang, Ming Zhang, Chongjie Wang, Pengjian Lu, Bingjian Guo, Bao-Wen Li, Rong Tu, Qingfang Xu, Chuanbin Wang, Lianmeng Zhang
Summary: Micro-supercapacitor (MSC) electrodes made of porous graphene/SiC composite films grown by laser CVD exhibit high specific capacitance and excellent cycling stability. The specific capacitance reaches up to 219.3 mF/cm2, which is 26 times higher than that of electrodes prepared by conventional CVD. After 20000 charge-discharge cycles, the electrode retains 99.9% capacitance at room temperature and 109.6% capacitance at variable temperatures. The abundance of graphene on the SiC porous structure and the strong adhesion between graphene and SiC contribute to the capacitance enhancement and cycling stability.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Electrical & Electronic
Yuanqiang Zhu, Hui Xu, Jing Tang, Xudong Jiang, Yuanhai Bao, Yong Chen
Summary: The ternary hybrid material CF@gamma-MnO2/PANI exhibits high capacitance and cycling stability, making it a promising candidate for supercapacitor applications. The efficient utilization of MnO2 and PANI is achieved by supporting gamma-MnO2 nanoparticles on the surface of CF and coating them with PANI.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Hui Cheng, Yanan Liu, Shuaitong Zhou, Jinying Jia, Yuan Ji
Summary: The study synthesized ZnO@MnO2 hybrid material on flexible carbon cloth through hydrothermal method and thermal decomposition method for high-performance supercapacitors. The hybrid nanostructures demonstrated high specific capacitance and capacitance retention rate, indicating their potential for future supercapacitor developments.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Chemistry, Physical
Xiaodong Hong, Xu Wang, Yang Li, Jiawei Fu, Bing Liang
Summary: In this study, carbon nanosheets derived from potassium citrate (PC-Cs) were prepared via high-temperature carbonization method and used as sacrificial template for MnO2 nanosheets arrays generation. Sandwich structured MnO2/PC-Cs/MnO2 composite exhibited high capacitance and excellent cycling stability in supercapacitor applications. The composite's superior performance was attributed to the high fraction of MnO2 and nanosheets arrays structure, as well as the residual carbon layer enhancing electronic conductivity and long-term stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Green & Sustainable Science & Technology
Dongxing Huo, Hua Tian, Weiguang Wang, Gequn Shu
Summary: This paper proposes a TREC system with carbon-copper composite negative electrode to improve the heat-to-electricity conversion efficiency. By studying various factors for the preparation of carbon-copper composite electrodes, suitable conditions were determined, leading to a 1.3 times increase in efficiency compared to the conventional system.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Chemistry, Multidisciplinary
Ramya Ramkumar, Ganesh Dhakal, Jae-Jin Shim, Woo Kyoung Kim
Summary: Transition metal oxide aerogels have unique properties such as high porosity, large surface area, and ultralow density, making them a fascinating class of compounds. In this study, annealed NiO/Ni aerogels were used to fabricate a two-electrode supercapacitor device with high specific capacitance and cycling stability. The aerogels demonstrated good energy and power densities, showing their potential for practical applications in energy storage.
Article
Energy & Fuels
Madhav P. Chavhan, Vaclav Slovak, Chung-Hsin Lu
Summary: The research revealed the decisive roles of [OH-]/[Ni2+] molar ratios and calcination temperatures in controlling the morphology of NiO nanostructures, leading to the formation of hexagonal nanodisc shapes. Increasing the calcination temperature improved crystallinity but also reduced the BET area and pore volume.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Physical
Kexin Jiao, Jun Suo, Cheng Pan, Anvar Khamidov, Olim Ruzimuradov, Mingjun Wang, Dong Fang, Caiju Li
Summary: A facile and low-cost method was used to synthesize MnO2-tin-doped indium oxide nanowires (ITO NWs) composite with highly ordered network structures for electrochemical supercapacitors. The network structure effectively reduces ion diffusion and charge transport resistance in the electrode. The optimized MnO2 demonstrates a high specific capacitance.
SOLID STATE IONICS
(2022)
Article
Energy & Fuels
Mengying Jia, Ziyu Zhao, Meng Wang, Yucheng Zhou
Summary: A novel fabrication strategy for flexible asymmetric supercapacitors using carbonized paper fiber/graphene/tannic acid, manganese dioxide, and polypyrrole as electrode materials is developed. The electrode synthesized via electrochemical deposition shows excellent electrochemical performance, offering high specific capacitance and stability.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Electrical & Electronic
Cheng-Kim Sim, S. A. Razali, S. R. Majid, Noor Zalina Mahmood
JOURNAL OF ELECTRONIC MATERIALS
(2020)
Article
Chemistry, Physical
N. Harudin, Z. Osman, S. R. Majid, L. Othman, D. Hambali, M. M. Silva
Article
Chemistry, Analytical
Cheng-Kim Sim, S. R. Majid, Noor Zalina Mahmood
Summary: ZnSnO3/mesoporous carbon composite (PP-ZTO) and porous carbon (PP-C) were synthesized via combustion method, with PP-ZTO showing high porosity, excellent capacitance and cycle stability. The results suggest that ZTO/carbon is a promising candidate for supercapacitor application.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Physical
Ibnu Syafiq Imaduddin, Siti Rohana Majid, Shujahadeen B. Aziz, Iver Brevik, Siti Nor Farhana Yusuf, M. A. Brza, Salah R. Saeed, Mohd Fakhrul Zamani Abdul Kadir
Summary: The study prepared cobalt-based metal-organic framework (MOF) powder using solvothermal method, and modified the morphology and structure during pyrolysis process at different temperatures. The sample CN-300 showed the smallest crystallite size of 7.77 nm, high specific capacitance of 229 F g(-1) and retained 110% of capacitance after 5000 cycles, indicating good durability and performance.
Article
Biochemistry & Molecular Biology
Mohamad Brza, Shujahadeen B. Aziz, Salah Raza Saeed, Muhamad H. Hamsan, Siti Rohana Majid, Rebar T. Abdulwahid, Mohd F. Z. Kadir, Ranjdar M. Abdullah
Article
Chemistry, Analytical
F. J. Juni, S. R. Majid, S. N. F. Yusuf, Z. Osman
Summary: Metal-organic frameworks (MOF) are a new class of porous materials that have controllable morphology, high porosity, and multifunctionalities. In this study, a simple and cost-effective method was introduced to synthesize MOF using copper ions and 2-methylimidazole, and then derived Cu/Cu2O/C composite as electrode materials for supercapacitor application. The heated MOF at 900℃ showed excellent electrochemical properties and demonstrated new insights of copper-based MOF as electrode materials for energy storage applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
A. H. A. Rahim, S. R. Majid, Cheng-Kim Sim, S. N. F. Yusuf, Z. Osman
Summary: The study successfully prepared Zeolitic Imidazolate Frameworks containing imidazolate-based linkers in different molar ratios and found that Co-ZIF-R3 exhibited the highest specific capacity in 1M KOH. An asymmetric supercapacitor utilising Co-ZIF-R3 showed good performance within a large working potential and maintained a high capacity after 2500 cycles.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Electrochemistry
A. H. A. Rahim, S. N. F. Yusuf, S. R. Majid, Z. Osman
Summary: A series of Ni-based Zeolitic Imidazolate Framework (ZIF) materials were successfully synthesized. Among them, Ni-ZIF-3 exhibited excellent electrochemical performance with high specific capacitance and cycling stability, demonstrating outstanding performance.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2022)
Article
Polymer Science
N. Ali, S. Z. Z. Abidin, S. R. Majid, N. K. Jaafar
Summary: Polymer electrolytes based on agarose and Magnesium Nitrate were prepared with different weight percentages and studied for their electrical properties. The highest ionic conductivity film was achieved by doping 30 wt% Magnesium Nitrate, leading to increased amorphous nature of the polymer and stable electrochemical properties up to 3.57V. Various analytical techniques, including XRD, FTIR, LSV, and CV, were used to study the molecular interactions and performance of the electrolyte.
Article
Chemistry, Analytical
Siti Anis Khairani Alwi, Syaza Nafisah Hisamuddin, Shahino Mah Abdullah, Afiq Anuar, Atiqah Husna Abdul Rahim, Siti Rohana Majid, Tahani M. Bawazeer, Mohammad S. Alsoufi, Nourah Alsenany, Azzuliani Supangat
Summary: In this study, a solution-processed bulk heterojunction organic photodiode using VTTBNc as a p-type material was experimentally observed. The blend film of VTTBNc:PC71BM with a volumetric ratio of 1:1 showed optimized performance with excellent detectivity and responsivity. VTTBNc was found to extend light absorption to the near-infrared region, enhancing the overall performance of the photodiode.
Article
Chemistry, Physical
N. Harudin, Z. Osman, L. Othman, D. Hambali, R. Rosli, M. Z. Kufian, S. R. Majid
Summary: In this study, MgMn2O4 and MgMn1.8Ca0.2O4 were synthesized and evaluated as cathode materials for rechargeable magnesium ion cells. MgMn1.8Ca0.2O4 exhibited the highest specific capacity, making it a promising candidate for magnesium ion cells.
Article
Electrochemistry
N. S. Rafi Mohd, S. Z. Z. Abidin, S. R. Majid, R. Zakaria
Summary: CaSCN-agarose biopolymer electrolytes were prepared through a solution casting technique and characterized for their electrical conductivity and structural properties. The highest conducting sample, with a CaSCN salt content of 40 wt.%, exhibited a favorable ionic conductivity value. The molecular interactions between agarose polymer and CaSCN salts were further affirmed through FTIR spectroscopy. XRD analysis supported the highest amorphicity of the 40 wt.% CaSCN-agarose biopolymer electrolytes. These findings contribute to the development of calcium-conducting biopolymer electrolytes for high energy storage devices.
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
I. S. Imaduddin, S. R. Majid, N. S. Kamaruddin, N. F. M. Yusoff, N. H. Idris
Summary: A bimetallic Zn-Co-ZIF was synthesized from metal organic framework using a co-precipitation method, and its morphology and structure were changed through pyrolysis at different temperatures. The change in elemental composition affected the specific capacity, cycling stability, and rate capability of each sample.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Multidisciplinary
Nor Fazila Mahamad Yusoff, Nurul Hayati Idris, Muhamad Faiz Md Din, Siti Rohana Majid, Noor Aniza Harun
Summary: Researchers have successfully prepared Mn3O4 nanoparticles distributed on nitrogen-doped and nitrogen, sulfur-doped reduced graphene oxide aerogels, and demonstrated excellent electrochemical performance. The doped graphene aerogels provide efficient ion transport channels, improving the stability of the electrode.
Article
Chemistry, Multidisciplinary
Nor Fazila Mahamad Yusoff, Nurul Hayati Idris, Muhamad Faiz Md Din, Siti Rohana Majid, Noor Aniza Harun, Md Mokhlesur Rahman