Review
Nanoscience & Nanotechnology
Ziwei Cao, Roya Momen, Shusheng Tao, Dengyi Xiong, Zirui Song, Xuhuan Xiao, Wentao Deng, Hongshuai Hou, Sedat Yasar, Sedar Altin, Faith Bulut, Guoqiang Zou, Xiaobo Ji
Summary: This comprehensive review outlines the synthetic methods and electrochemical performances of metal-organic frameworks (MOFs), as well as their applications in the field of supercapacitors. The review highlights the advantages of MOFs-related materials and discusses the major challenges and opportunities for future research.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Sadegh Azizi, Majid Seifi, Mohammad Taghi Tourchi Moghadam, Mohammad Bagher Askari, Rajender S. Varma
Summary: Investigations on eco-friendly energy storage devices and stable electrode nanomaterials have gained significant attention in recent times. The combination of MnCo2O4 and NiCo2O4 in the form of star morphology on a nickel foam substrate showed promising results in terms of excellent capacitance and stability. The electrochemical properties of the electrodes were evaluated using GCD, CV, and EIS, and the supercapacitor application exhibited satisfactory performance with a high power density and energy density.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Engineering, Electrical & Electronic
Jingjing Yan, Congxiu Guo, Xiangyun Guo, Xili Tong
Summary: In this study, nitrogen-doped mesoporous network-like carbon materials (NMNCs) were obtained using glucose and ammonia as carbon and nitrogen sources, respectively, through a simple hydrothermal and calcination coupling method. NMNC-1000, produced by heat treatment in ammonia atmosphere at 1000 degrees C for 3 h, exhibited an extremely high nitrogen-doped specific surface area and optimal mesoporous structure, resulting in superior electrochemical supercapacitive properties.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Santa Islam, Md Mithu Mia, Syed Shaheen Shah, Shamsun Naher, M. Nasiruzzaman Shaikh, Md Abdul Aziz, A. J. Saleh Ahammad
Summary: With their high specific capacitance, high power density, and longer cycle life, supercapacitors have become one of the most promising energy storage devices. Recent research has focused on improving the performance of supercapacitors by altering electrolytes, electrode materials, current collectors, experimental temperatures, and film thickness. The significant demand for these devices in the fast-growing generation is reflected by the large number of published papers. This review provides a comprehensive understanding of electrode materials loaded on various conductive substrates by electrochemical deposition, paving the way for future research in this field.
Article
Engineering, Environmental
Jianghang Cao, Yuzhen Hu, Yuying Zhu, Haijie Cao, Meiqiang Fan, Chenghao Huang, Kangying Shu, Maoxia He, Hai Chao Chen
Summary: By controlling the manganese composition in nickel-cobalt-manganese sulfide, the electrons of cobalt can be activated and the affinity with electrolyte ions can be enhanced, leading to improved electrochemical activity and rate performance. Furthermore, the manganese and nickel compositions greatly enhance the charge storage activity of the sulfide, while the nickel composition improves the rate performance.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Materials Science, Multidisciplinary
Sonali Verma, Sandeep Arya, Vinay Gupta, Sarika Mahajan, Hidemitsu Furukawa, Ajit Khosla
Summary: The increasing environmental problems and energy demands have stimulated research into safe and efficient energy sources. Supercapacitors have attracted great interest due to their high energy storage capacity.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Xiaohong Liu, Jiale Sun, Yafei Liu, Dongsheng Liu, Huiyu Chen, Kai Zhuo, Chunju Xu
Summary: Porous NiO/C nanofibers were synthesized by electrospinning method and showed high specific capacity and excellent rate capability in electrochemical performance testing, making them suitable for high-performance electrochemical energy storage devices.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Physical
Anna Khramenkova, Valentin V. Moshchenko, Daria N. Izvarina, Konstantin M. Popov, Lyubov G. Bulusheva, Alexander Okotrub
Summary: A new method for synthesizing hybrid electrode materials by depositing transition metal oxides on carbon fabrics using non-stationary electrolysis is proposed. The hybrid electrode material had a capacitance of 498 mF·cm-2 and a capacitance retention of 62% over 10,000 cycles. The power density and energy density of the hybrid electrode were 15·10-4 W·cm-2 and 6·10-7 Wh·cm-2, respectively. The synthesized metal oxide/carbon hybrids show promise as electrode materials for symmetrical supercapacitors with alkaline electrolytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Electrical & Electronic
Jingke Meng, Jie Yang, Xiucheng Zheng
Summary: Biomass wastes are sustainable carbon resources that have attracted attention in synthesizing carbon materials for supercapacitors. In this study, N, O co-doped micro-mesoporous carbon (MMC) was prepared from pre-carbonized poplar catkin biomass waste. The MMC exhibited beneficial characteristics for capacitive energy storage, such as high specific surface area, suitable porous structure, abundant heteroatom doping, and defect. The MMC demonstrated a high capacitance and retention, as well as a long lifetime, making it a potential candidate for supercapacitor electrodes.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Xuan Bai, Feng Zhang, Yibo Wang, Bin Zhai, Yu Song, Xiuying Wang, Jun Zhao
Summary: Ni-based salts play an important role in the preparation of porous carbon materials, influencing their morphology, porous structure, and degree of graphitization; Anions also play a significant role in the formation of carbon materials; The electrochemical performance of porous carbons is affected by factors such as the ratio of mesopores to micropores and electron conductivity.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Engineering, Electrical & Electronic
H. J. Trinity Rabecca, Y. Priyajanani, S. Manivannan, A. J. Clement Lourduraj
Summary: Metal oxides with reduced graphene oxide (rGO) have been studied for supercapacitor properties due to their high theoretical specific capacitance. In this study, a two-step hydrothermal approach was used to synthesize Co3O4-Mn2O3/rGO nanocomposite with average crystallite size of 14 nm. The nanocomposite exhibited mesoporous structure with surface area of 14.139 m(2)/g and demonstrated a specific capacitance of 663 F/g at 1 A/g and low electrode resistance of 0.39 Ω. The electrochemical studies revealed a diffusion controlled intercalation process over a potential range of 0-0.6 V.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
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)
Review
Chemistry, Multidisciplinary
Guilin Tang, Jing Liang, Wei Wu
Summary: This review summarizes the recent advancements in electrode materials based on transition metal selenides for supercapacitor applications. Various material modification strategies and the progress of multifunctional supercapacitors are discussed.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Zuozhao Zhai, Lihui Zhang, Tianmin Du, Bin Ren, Yuelong Xu, Shasha Wang, Junfeng Miao, Zhenfa Liu
Summary: This article discusses the growing importance of supercapacitors in the energy storage industry and the significant role of carbon materials in their development. The energy storage mechanisms and commonly used carbon electrode materials are presented, along with their applications in the field of supercapacitors. The article also explores the future trends of carbon-based supercapacitors.
MATERIALS & DESIGN
(2022)
Article
Materials Science, Multidisciplinary
Thangaian Kesavan, Raja Murugan, Kothandaraman Ramanujam
Summary: In this study, nitrogen and phosphorous co-doped ordered mesoporous carbon (NPMC) was successfully synthesized and its charge storage capacity in aqueous and non-aqueous electrolytes was explored. The results showed that NPMC exhibited high specific capacitance and remarkable capacitance retention in water medium, and impressive energy density and power density in non-aqueous medium.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Houcine Naim, Deb Kumar Shah, Abed Bouadi, Masoom Raza Siddiqui, M. Shaheer Akhtar, Chong Yeal Kim
Summary: The study presents a single heterojunction solar cell based on silicon and zinc oxide to improve power conversion efficiency. By utilizing PC1D simulation, the optimum photovoltaic parameters were determined to achieve the highest efficiency for the HJ-based c-Si solar cell.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Jitendra Kumar Sharma, Meera Yadav, Anindita Hazarika, Hardeo Singh Yadav, Nene Takio, Sadia Ameen, Pratibha Srivastava, M. Shaheer Akhtar
Summary: This paper describes the green synthesis of well-crystalline CeO2 nanoparticles using lemon leaf extract, which efficiently act as a substitute for catalase in catalyzing various enzymatic reactions. The CeO2 nanoparticles exhibited similar activity and catalytic properties to traditional catalase, with the potential for degrading H2O2 and oxidizing toxic compounds.
EMERGENT MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Deb Kumar Shah, K. C. Devendra, Jaeho Choi, Seong Hwan Kang, M. Shaheer Akhtar, Chong Yeal Kim, O-Bong Yang
Summary: This study optimizes the thickness of graphene oxide (GO) as an antireflection coating (ARC) layer using a low-cost deposition process and validates the results through experiments and simulations. The optimized GO ARC layer with a thickness of 80 nm exhibits the lowest reflectance and the highest photovoltaic performance in Si solar cells.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Materials Science, Multidisciplinary
Jay Singh, Kichang Hong, Younggwon Cho, M. Shaheer Akhtar, Jungwon Kang, Alok Kumar Rai
Summary: This article investigates the hydrothermal synthesis of oval-shaped V2O5 nanoparticles using a metal-organic framework (MOF) as a template. The characterized sample reveals that the unique morphology of the nanoparticles, with a large surface area and numerous channels for lithiation and de-lithiation, leads to improved electrochemical performances. The V2O5 electrodes show promising potential as cathode materials for next-generation lithium-ion batteries.
Article
Energy & Fuels
Jumaboev Sherozbek, Jaewoo Park, Mohammad Shaheer Akhtar, O-Bong Yang
Summary: Solar power generation is impacted by meteorological factors, and accurately predicting power generation is important for integrating solar energy into the electrical grid. This study used smart artificial intelligence models to forecast power generation for non-transparent and transparent solar panels. Deep learning approaches such as LSTM, GRU, and transformers were implemented, with the transformers model showing the best performance. The proposed model demonstrated efficient and effective forecasting of time-series data.
Article
Environmental Sciences
M. Imran, Eun-Bi Kim, Abdullah, M. Shaheer Akhtar, Ahmad Umar, Dong-Heui Kwak, Sadia Ameen, Sotirios Baskoutas
Summary: The study focuses on the synthesis of an organic semiconductor with extended π-conjugation for the use of photocatalysis in acquiring photon energy from sunlight to clean the environment, particularly for the purification of contaminants from water.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Santosh Kumari, Suvarcha Chauhan, Kuldeep Singh, Ahmad Umar, Hassan Fouad, Mohammad Shaheer Akhtar
Summary: This study investigates the effects of glycyl dipeptide on the compressibility, volumetric behavior, and viscometric behavior of cationic surfactants CTAB and DTAB. The study reveals that CTAB interacts more strongly with dipeptide and significantly dehydrates it. The addition of cationic surfactants also affects water-water interactions, leading to variations in determined parameters. Consideration of structural rearrangement of molecules helps explain the results of viscosity and related factors. The study provides insights into the stability and structural changes in protein-surfactant systems mediated by various interactions.
Article
Biochemistry & Molecular Biology
Santosh Kumari, Suvarcha Chauhan, Kuldeep Singh, Ahmad Umar, Hassan Fouad, Mohammed S. S. Alissawi, Mohammad Shaheer Akhtar
Summary: The study investigated the volumetric and compressibility properties of bio-surfactants in aqueous glycyl glycine solution. The results showed strong interactions between glycyl glycine and sodium cholate and sodium deoxycholate, promoting micellization. In addition, the viscous relaxation time increased with bio-surfactant concentration and decreased with temperature.
Article
Biochemistry & Molecular Biology
Santosh Kumari, Suvarcha Chauhan, Ahmad Umar, Hassan Fouad, Mohammad Shaheer Akhtar
Summary: This study investigates the micellar state of sodium cholate and sodium deoxycholate in the presence of a bioactive peptide, glycyl dipeptide, using conductivity and fluorescence methods. The results reveal the hydrophobic/hydrophilic interactions between bile salts and glycyl dipeptide, as well as the thermodynamic factors of micellization. Additionally, changes in micelle polarity induced by the interactions are studied using pyrene fluorescence spectrum, showing a correlation with conductivity studies.
Article
Biochemistry & Molecular Biology
Md. Torikul Islam, Md. Nahid Parvez Roni, Md. Yunus Ali, Md. Robiul Islam, Md. Shamim Hossan, M. Habibur Rahman, A. A. S. Mostofa Zahid, Md. Nur E. Alam, Md. Abu Hanif, M. Shaheer Akhtar
Summary: This study found that titanium dioxide nanoparticles, prepared through sol-gel and hydrothermal synthetic routes, have specific degradation preferences for charged substrates. It indicates the potential for the selective degradation of specific organic pollutants, facilitating cost-effective effluent management.
Article
Multidisciplinary Sciences
D. Parajuli, K. C. Devendra, Khim B. B. Khattri, Dipak Raj Adhikari, Raid Anam Gaib, Deb Kumar Shah
Summary: In this study, the optoelectrical properties of the ZnO-ZnSe-CdSe heterojunction for a thin and cost-effective solar cell were numerically assessed using PC1D simulation software. The PV properties were optimized by varying the thicknesses of the absorber layer, window layer, and antireflection coating. The thin-film solar cell showed a high efficiency of 11.98% with optimized layer thicknesses.
SCIENTIFIC REPORTS
(2023)
Article
Optics
Tri-Chan-Hung Nguyen, Young-Un Kim, Insung Jung, O-Bong Yang, Mohammad Shaheer Akhtar
Summary: This research proposes the use of machine learning to accurately predict the properties of new inorganic perovskite materials, providing guidance for the discovery of desirable organic perovskite materials. The best experimental outcomes were achieved using the Random Forest algorithm, demonstrating the potential of machine learning in accelerating material discovery.
Article
Nanoscience & Nanotechnology
Tae-Guan Kim, Dadajon Jurakuziev, M. Shaheer Akhtar, O-Bong Yang
Summary: This study establishes a relationship between photoluminescence and crystalline properties of inorganic phosphors, and optimizes their optical and photophysical behavior by controlling the Ba/Sr ratio. The findings suggest that machine learning prediction models can serve as excellent preliminary investigations to guide the research of novel inorganic phosphors.
JOURNAL OF SCIENCE-ADVANCED MATERIALS AND DEVICES
(2023)
Article
Materials Science, Multidisciplinary
Ahmad Umar, Rajesh Kumar, Ahmed A. Ibrahim, Mohsen A. M. Alhamami, M. Shaheer Akhtar
Summary: CdS QDs-rGO composites can serve as reliable electron facilitators for the fabrication of sensitive, robust, and persistent electrochemical sensors.
MRS COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Deb Kumar Shah, K. C. Devendra, Ahmad Umar, Hassan Algadi, Mohammad Shaheer Akhtar, O-Bong Yang
Summary: This paper investigates the thickness optimization of HfO2 ARC layer on silicon solar cells and explores its impact on the photovoltaic characteristics through simulation analysis. The experimental results show that the HfO2 ARC layer with a thickness of 70 nm achieves lower reflectance and enables the silicon solar cells to have exceptional quantum efficiency and power conversion efficiency.