Article
Electrochemistry
Mohammed Jalalah, Siddheswar Rudra, Belqasem Aljafari, Muhammad Irfan, Saleh S. Almasabi, Turki Alsuwian, Mohammed Iqbal Khazi, Arpan Kumar Nayak, Farid A. Harraz
Summary: In recent years, there has been increasing research interest in the applications of biomass-derived meso/microporous carbon materials for energy storage. These materials, synthesized from natural sources, offer higher capacitance, durability, and rate capability compared to artificial nanomaterials. The elemental composition and porous nature of the biological precursor play a crucial role in obtaining high-energy and power density carbon materials.
ELECTROCHIMICA ACTA
(2022)
Article
Polymer Science
Wen-Jun Zhuo, Yen-Hua Wang, Chia-Tse Huang, Ming-Jay Deng
Summary: In this study, nanostructured polypyrrole-coated MnO2 nanofibers grown on carbon cloth (PPy-MnO2-CC) were used as electrodes along with a quasi-ionic liquid-based polymer gel electrolyte for solid-state symmetric supercapacitors. The resulting solid-state supercapacitors exhibited high specific capacitance, energy/power density, cycling stability, and rate capability, surpassing most previously reported supercapacitors. The outstanding performance of the flexible PPy-MnO2-CC solid-state supercapacitors is attributed to the design of the nanostructured PPy-coated MnO2 composite electrode and the urea-LiClO4-PVA polymer gel electrolyte.
Article
Engineering, Chemical
Mohammed Jalalah, Siddheswar Rudra, Belqasem Aljafari, Muhammad Irfan, Saleh S. Almasabi, Turki A. Alsuwian, Akshay A. A. Patil, Arpan Kumar Nayak, Farid A. Harraz
Summary: In this study, heteroatom-doped porous activated carbon nanoflakes were synthesized from sustainable biomass, showing excellent specific capacitance and cycling stability, making them suitable for energy storage applications.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Polymer Science
Yu-Hao Lin, Wan-Tien Huang, Yi-Ting Huang, Yi-Ni Jhang, Tsung-Ting Shih, Murat Yilmaz, Ming-Jay Deng
Summary: Flexible electrochemical supercapacitors (FESCs) are innovative energy storage systems characterized by stable performance, long cycle life, and portability/foldability. This study investigates deep eutectic solvent (DES)-based polymer gel systems as crucial components for FESCs, showing cost-effective accessibility, simple synthesis, excellent biocompatibility, and exceptional thermal and electrochemical stability. The use of a unique ion-transport process enhances the overall electrochemical performance of the polymer gel electrolyte.
Article
Energy & Fuels
Chaoran Qin, Xiaoyi Wu, Cui Huang, Bo Duan, Jinping Zhou, Hongye Yang, Ang Lu
Summary: In this study, a tooth-derived supercapacitor was fabricated for the first time, demonstrating excellent performance and potential for applications in energy storage field.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Shrikant S. Raut, Lakshmana Kumar Bommineedi, Shilpa Pande, Babasaheb R. Sankapal
Summary: Researchers have designed a prototype solid-state symmetric supercapacitor (SSS) device with excellent specific capacitance, energy and power properties. The device demonstrates stable cycle repeatability and opens up new possibilities for electrochemical energy storage.
Article
Chemistry, Physical
Siyuan Xu, Xiaohong Liang, Kangkang Ge, Haiyang Yuan, Guangming Liu
Summary: A low-molecular-weight supramolecular gel electrolyte (SGE) has been successfully developed for quasi-solid-state supercapacitors (QSSCs), which shows comparable performance dependence on electrode thickness as bulk electrolyte solutions. The high ionic conductivity and good wettability of the SGE contribute to its effective filling of thick porous activated carbon electrodes.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Wei-Cheng Li, Ren-Kai Chen, Ten-Chin Wen
Summary: This study investigates the role of nano-hydroxyapatite bearing zwitterion in carboxylated chitosan hydrogel electrolyte for improved supercapacitor performance. The successful synthesis of the composite is confirmed by various characterization techniques. The results show that the addition of nano-hydroxyapatite bearing zwitterion significantly enhances the performance of supercapacitors.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Yangbiao Liu, Xuesong Cai, Xiudi Xiao, Jixi Wang, Guizhang Sheng, Gang Xu
Summary: This study successfully prepared PVDF gel electrolytes with high ionic conductivity and excellent mechanical properties through a simple method, providing a new idea for the preparation of WO3 gel ECDs and successfully extending their lifetime.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Zhixing Zhao, Yun Huang, Wenhao Ren, Ling Zhao, Xing Li, Mingshan Wang, Yuanhua Lin
Summary: A gel polymer electrolyte (GPE) was prepared using a cotton/PVA composite membrane to enhance the electrochemical performances of supercapacitors (SCs). The SC based on the corresponding membrane exhibited superior specific capacitance and flexibility, showing potential for flexible SCs with outstanding performance.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Bhupender Singh, Ranjeet Kaur, Randeep Kaur, Kulvinder Singh, Shweta Rana
Summary: A ternary nanocomposite film of PEDOT-rGO-MoS2 has been fabricated using an efficient electrochemical approach for a symmetrical solid-state supercapacitor device, showing excellent electrochemical performance. The assembly of the composite film into a solid-state symmetrical device has significantly improved its cyclic stability and coulombic efficiency.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Chemistry, Multidisciplinary
Larissa A. Santa-Cruz, Primaggio S. Mantovi, Lara F. Loguercio, Rhauane A. Galvao, Marcelo Navarro, Saulo T. A. Passos, Brenno A. D. Neto, Fabiele C. Tavares, Roberto M. Torresi, Giovanna Machado
Summary: Climate change and demand for clean energy have prompted scientists to develop sustainable energy storage solutions. This research introduces a conductive gel biopolymer electrolyte made from saline water and seaweed, enabling the production of sustainable and flexible supercapacitors with satisfactory energy and power densities.
Article
Biochemistry & Molecular Biology
Samar Azizighannad, Zhiqian Wang, Zain Siddiqui, Vivek Kumar, Somenath Mitra
Summary: By doping novel polyacrylamide gel electrolytes (PGEs) with nano carbons, enhanced electrochemical, thermal, and mechanical properties were achieved, leading to improved performance of supercapacitors. The incorporation of nano carbons improved thermal stability, enhanced viscous properties, and increased gel ionic conductivity, demonstrating the effectiveness of nano carbons as dopants in polymer gel electrolytes for property enhancements.
Article
Engineering, Environmental
Hyungi Kim, Seung Mo Kong, Jin A. Kim, Gyujin Yoon, Yang Ho Na, Seong K. Kim
Summary: Polyampholyte hydrogels can be used as gel polymer electrolytes for energy storage devices and capacitive circuit elements due to their high ionic conductivity, excellent areal capacitance, self-healing properties, and biocompatibility.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Green & Sustainable Science & Technology
Feng Wei, Yaohui Lv, Shouquan Zhang, Jiandong Zheng
Summary: A novel strategy using potassium tetraborate from biomass was developed to construct 3D boron/nitrogen dual doped layered carbon (BNLC) in 3 M Zn(CF3SO3)(2) aqueous electrolyte, achieving a high voltage window of 2 V for supercapacitors. The BNLC showed high specific capacitance, good rate performance, and excellent cycle stability, with an energy density in neutral electrolyte that is 4.4 times higher than in alkaline electrolyte.
Article
Chemistry, Applied
Rohit Jasrotia, Nisha Kumari, Ritesh Verma, Saad M. Suman, Sachin Kumar Godara, Jahangeer Ahmed, Saad M. Alshehri, Bidhan Pandit, Sanjay Kumar, Pradip K. Himanshi, Shubham Sharma, Kirti, Pradip K. Maji
Summary: Zn0.7Mg0.3NdxFe2-xO4 ferrite nanoparticles were synthesized using the sol-gel auto-combustion technique. Various characterization techniques were used to investigate their structure, morphology, and magnetic properties.
JOURNAL OF RARE EARTHS
(2023)
Article
Engineering, Electrical & Electronic
V. S. Veena, H. J. Amith Yadav, Apsar Pasha, V. Jagadeesha Angadi, Mohd Ubaidullah, Shoyebmohamad F. Shaikh, Bidhan Pandit
Summary: This study focuses on the preparation of bismuth-substituted zinc ferrites and investigates the influence of Bi substitution on the structural, microstructural, and humidity characteristics. The results show that the highest humidity sensing behavior is exhibited by samples with a concentration of 0.03 mol% Bi, which is attributed to the non-magnetic nature of bismuth and the morphological changes in the samples.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
V. Jagadeesha Angadi, A. T. Kozakov, A. V. Nikolsky, S. P. Kubrin, Mohd Ubaidullah, Bidhan Pandit, Chander Prakash
Summary: The solution combustion process was used to synthesize powdered HoFeO3 and Ho0.2Y0.8FeO3. The structure and morphology of the samples were evaluated using various techniques, such as X-ray diffraction and scanning electron microscopy. X-ray spectroscopy and FTIR spectra were utilized to analyze the chemical composition and vibrational properties of the materials. The magnetic properties of Ho0.2Y0.8FeO3 were also investigated using Mossbauer spectroscopy.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Environmental
Bidhan Pandit, Morten Johansen, Bettina P. Andersen, Cynthia S. Martinez-Cisneros, Belen Levenfeld, Dorthe B. Ravnsbaek, Alejandro Varez
Summary: All-solid-state sodium-ion batteries with ceramic solid electrolytes and conductive carbon coated cathode material exhibit enhanced rate capability, stability, and long cycle life. The sequential Rietveld refinements of in situ data show the evolution of different phases and unit cell characteristics. The design of such batteries contributes to the fabrication of stable and efficient energy storage systems.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Kunmi Joshua Abioye, Noorfidza Yub Harun, Suriati Sufian, Mohammad Yusuf, Hesam Kamyab, Muzamil Abdalla Hassan, Ahmad Hussaini Jagaba, Surajudeen Sikiru, Mohd Ubaidullah, Bidhan Pandit, Navdeep Dhaliwal
Summary: This study investigates the effect of adding different proportions of alum sludge on the slagging characteristics during combustion of palm oil decanter cake (PODC). The results show that the addition of alum sludge improves the ash fusion temperature and reduces the lifespan of combustion reactors. At 50% alum sludge addition, the slagging tendency can be ignored.
Article
Environmental Sciences
Senthilkumar Nangan, Kuppusamy Kanagaraj, Gurumoorthy Kaarthikeyan, Anuj Kumar, Mohd Ubaidullah, Bidhan Pandit, Rajakumar Govindasamy, Thirumalaivasan Natesan
Summary: Addressing global waste challenges, we can repurpose waste syringes into fluorescent carbon dots using a sustainable approach. By carbonizing and modifying discarded plastic syringes with hyaluronic acid, luminescent syringe carbon dots were created. Extensive analysis and biocompatibility assessments confirmed their safety and potential antimicrobial traits.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Devarajan Alagarasan, S. S. Hegde, Anuj Kumar, B. Shanmugavelu, Prashantha Murahari, R. Ganesan, Hitha D. Shetty, R. Naik, Mohd Ubaidullah, Manish Gupta, Bidhan Pandit, Nangan Senthilkumar, Satbir S. Sehgal
Summary: In this work, lanthanum-doped indium sulfide thin films (In2S3:La) were fabricated using a low-cost nebulizer spray pyrolysis method, and the effect of doping on the properties of the films was investigated. The 3% lanthanum-doped film showed improved crystallinity, surface morphology, and optical properties, making it suitable for device fabrication. The film also exhibited high photodetector performance.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Chemistry, Physical
Revati P. Potdar, Yogesh B. Khollam, Shoyebmohamad F. Shaikh, Rajesh W. Raut, Bidhan Pandit, Pravin S. More
Summary: We have developed a new sensor based on gold nanoparticles coated optical fiber modified with 4'-aminodibenzo-18-crown-6 ether (A2BC) for detecting low-level potassium ions. By optimizing the operational parameters, such as cladding length and concentration of A2BC and gold nanoparticles, the sensor achieved a detection threshold of 1 ppm. The sensor showed fast response time, high sensitivity, selectivity, and stability, with a wide linear range (1-100 ppm) and a low limit of detection (LOD = 0.14 ppm).
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Nafisur Rahman, Abdur Raheem, Abdullah A. Al-Kahtani, Bidhan Pandit, Mohd Ubaidullah
Summary: This study investigates the decontamination of Pb (II) from aqueous environment using a graphene oxide/ hydrous zirconium oxide/crosslinked starch bio-composite (GZS-BC). The optimization of Pb (II) sorption was conducted using the Taguchi method, and the best conditions resulted in a maximum removal efficiency of 98.50% at pH 6. The Freundlich isotherm model was found to be the best fit with high R2 values and low v2 and APE values. The kinetic data suggested a heterogeneous surface of GZS-BC with multiple sorption sites, and the thermodynamic study indicated that both physisorption and chemisorption played a role in the uptake of Pb (II).
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Chemistry, Physical
Yogesh T. Nakate, Umesh T. Nakate, Sushil S. Sangle, Chandradip Jadhav, B. V. Bhaskara Rao, Bidhan Pandit, M. A. Yewale, S. L. Kadam, R. S. Ingole, Y. B. Khollam
Summary: In today's erudite world, where energy demand is increasing each day, novel electrode materials are essential for electric energy storage. Nickel and bismuth are considered the best anode materials in energy storage applications. In this study, we synthesized a bismuth, nickel-based oxide material using a simple hydrothermal synthesis method and tested its applicability for supercapacitors. The prepared material exhibited excellent electrochemical properties and stability, with a high areal capacitance of 137.5 mF/cm2 and long cycling performance of 5000 charge-discharge cycles.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
Baliram Nadekar, Yogesh B. Khollam, Shoyebmohamad F. Shaikh, Dattatray Wavhal, Pankaj Varshney, Bidhan Pandit, Pravin S. More
Summary: This study demonstrates the use of composite films made of plasma polymerized vinyl acetate (PVAc) and reduced graphene oxide (rGO) to address the limitations of chemoresistive gas sensors. The composite films show increased sensitivity to ammonia and amines and enhanced selectivity compared to other volatile organic compounds (VOCs). The films also remain stable and sensitive in a wide range of temperatures. This research provides a new method for fabricating highly sensitive and reliable gas sensors for environmental monitoring of ammonia and amines.
SURFACES AND INTERFACES
(2023)
Article
Chemistry, Physical
B. K. Nahak, R. Roshan, N. Jhariya, S. Bolloju, Bidhan Pandit, S. S. Mahato, S. Mahata
Summary: This study explored the feasibility of natural dyes as sensitizers in CdS quantum dots-based solar cells, and investigated the effect of citrus lemon extract as a capping agent and its impact on charge accumulation. The quenching mechanism and mechanisms of different dyes were analyzed.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Anuj Kumar, Mohd Ubaidullah, Bidhan Pandit, Ghulam Yasin, Ram K. Gupta, Guoxin Zhang
Summary: To improve the durability and methanol tolerance of metallo-phthalocynine molecular models for electrocatalytic ORR, researchers successfully designed and constructed a highly conjugated 2D covalent organic framework (2D FePc-COF) with excellent ORR activity and durability.
Article
Energy & Fuels
Anuj Kumar, Ram K. Gupta, Mohd Ubaidullah, Abdullah M. Al-Enizi, Bidhan Pandit, Senthilkumar Nangan, V. Jagadeesha Angadi, Ghulam Yasin
Summary: This article reports a hollow mesoporous Fe-graphitic carbon nitride supported on carbon nanotubes (Fe-C3N3@CNTs) as a superior electrocatalyst for the oxygen reduction reaction (ORR) in fuel cells. The Fe-C3N3@CNTs composite showed dominant 4e-ORR pathway, exceptional methanol tolerance, and durability. Theoretical analysis revealed that Fe-C3N3 catalytic moieties facilitated the adsorption and desorption of oxygen, enabling efficient ORR.
Article
Spectroscopy
Yujia Jin, Shifa Wang, Xinmiao Yu, Maoyuan Li, Huajing Gao, Hua Yang, Leiming Fang, Yuanyuan Zhang, Jinjin Ding, Hao Liu, Xiangyu Chen, Mengjun Han, Angadi. Jagadeesha, Mohd Ubaidullah, Bidhan Pandit, Dengfeng Li
Summary: The polyacrylamide gel method was used to fabricate CaAl12O19-based pigments doped with different types and contents of ions. The phase compositions, energy bands, color, and photoluminescence properties of the pigments can be controlled by adjusting the doping ions. A genetic algorithm optimized back propagation neural network was used to predict the color properties of the pigments. The pigments showed potential applications in painting, coating, and other fields.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Chemistry, Applied
Maoyi Yi, Jie Li, Mengran Wang, Xinming Fan, Bo Hong, Zhian Zhang, Aonan Wang, Yanqing Lai
Summary: In this study, polyacrylic acid (PAA) was used as a binder for the cathode in all-solid-state batteries. Through H+/Li+ exchange reaction, a uniform PAA-Li coating layer was formed on the cathode surface, improving the stability of the cathodic interface and the crystal structure. The SC-NCM83-PAA cathode exhibited superior cycling performance compared to traditional PVDF binder.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Yonghan Zhou, Zhongfeng Ji, Wenrui Cai, Xuewei He, Ruiying Bao, Xuewei Fu, Wei Yang, Yu Wang
Summary: By learning from the pencil-writing process, a solid-ink rubbing technology (SIR-tech) has been invented to develop durable metallic coatings on diverse substrates. The composite metallic skin by SIR-tech outperforms pure liquid-metal coating and shows great potential for various applications.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Ruiqi Tian, Hehe Zhang, Zeyu Yuan, Yuehua Man, Jianlu Sun, Jianchun Bao, Ming-Sheng Wang, Xiaosi Zhou
Summary: In this study, polypyrrole-encapsulated Sb2WO6 microflowers were synthesized and demonstrated to exhibit excellent potassium storage properties and cycling stability. The improved performance of Sb2WO6@PPy was attributed to the unique microflower structure, enhanced electronic conductivity, and protective PPy coating.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Review
Chemistry, Applied
Longxing Wu, Zhiqiang Lyu, Zebo Huang, Chao Zhang, Changyin Wei
Summary: This paper presents a comprehensive survey on physics-based state of charge (SOC) algorithms applied in advanced battery management system (BMS). It discusses the research progresses of physical SOC estimation methods for lithium-ion batteries and presents future perspectives for this field.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Honggang Huang, Yao Chen, Hui Fu, Cun Chen, Hanjun Li, Zhe Zhang, Feili Lai, Shuxing Bai, Nan Zhang, Tianxi Liu
Summary: The d-d orbital coupling induced by crystal-phase engineering effectively adjusts the electronic structure of electrocatalysts, improving their activity and stability, which is significant for electrocatalyst research.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Quanzhen Sun, Yifan Li, Caixia Zhang, Shunli Du, Weihao Xie, Jionghua Wu, Qiao Zheng, Hui Deng, Shuying Cheng
Summary: In this study, indium (In) ions were introduced into flexible Cu2ZnSn(S,Se)(4) (CZTSSe) solar cells to modify the back interface and passivate deep level defects in CZTSSe bulk. The results showed that In doping effectively inhibited the formation of secondary phase and V-Sn defects, decreased the barrier height at the back interface, passivated deep level defects in CZTSSe bulk, increased carrier concentration, and significantly reduced the V-OC deficit. Eventually, a flexible CZTSSe solar cell with a power conversion efficiency of 10.01% was achieved. This synergistic strategy of interface modification and bulk defects passivation through In incorporation provides a new approach for fabricating efficient flexible kesterite-based solar cells.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Negah Hashemi, Jafar Hussain Shah, Cejun Hu, Subhajit Nandy, Pavlo Aleshkevych, Sumbal Farid, Keun Hwa Chae, Wei Xie, Taifeng Liu, Junhu Wang, Mohammad Mahdi Najafpour
Summary: This study investigates the effects of Fe on the oxygen-evolution reaction (OER) in the presence of Au. The study identifies two distinct areas of OER associated with Fe and Au sites at different overpotentials. Various factors were varied to observe the behaviors of FeOxHy/Au during OER. The study reveals strong electronic interaction between Fe and Au, and proposes a lattice OER mechanism based on FeOxHy.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Yingshi Su, Yonghui Cheng, Zhen Li, Yanjia Cui, Caili Yang, Ziyi Zhong, Yibing Song, Gongwei Wang, Lin Zhuang
Summary: This study systematically investigates the key roles of Nafion on Cu nanoparticles electrocatalyst for CO2RR. The Nafion modifier suppresses the hydrogen evolution reaction, increases CO2 concentration and mass transfer process, and activates CO2 molecule to enhance C2 product generation. As a result, the selectivity of the hydrogen evolution reaction is reduced and the efficiency of C2 products is significantly improved.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Daijie Deng, Honghui Zhang, Jianchun Wu, Xing Tang, Min Ling, Sihua Dong, Li Xu, Henan Li, Huaming Li
Summary: By doping sulfur into vanadium nitride, the S-VN/Co/NS-MC catalyst exhibits enhanced oxygen reduction reaction activity and catalytic performance. When applied in liquid and flexible ZABs, it shows higher power density, specific capacity, and cycling stability.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Review
Chemistry, Applied
Yi Li, Fei Zhang
Summary: Self-assembly of metal halide perovskite nanocrystals holds significant application value in the fields of display, detector, and solar cell due to their unique collective properties. This review covers the driving forces, commonly used methods, and different self-assembly structures of perovskite nanocrystals. Additionally, it summarizes the collective optoelectronic properties and application areas of perovskite superlattice structures, and presents an outlook on potential issues and future challenges in the development of perovskite nanocrystals.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Anki Reddy Mule, Bhimanaboina Ramulu, Shaik Junied Arbaz, Anand Kurakula, Jae Su Yu
Summary: Direct growth of redox-active noble metals and rational design of multifunctional electrochemical active materials play crucial roles in developing novel electrode materials for energy storage devices. In this regard, silver (Ag) has attracted great attention in the design of efficient electrodes. The construction of multifaceted heterostructure cobalt-iron hydroxide (CFOH) nanowires (NWs)@nickel cobalt manganese hydroxides and/or hydrate (NCMOH) nanosheets (NSs) on the Ag-deposited nickel foam and carbon cloth (i.e., Ag/ NF and Ag/CC) substrates is reported. The as-fabricated Ag@CFOH@NCMOH/NF electrode delivered superior areal capacity value of 2081.9 μA h cm-2 at 5 mA cm-2. Moreover, as-assembled hybrid cell based on NF (HC/NF) device exhibited remarkable areal capacity value of 1.82 mA h cm-2 at 5 mA cm-2 with excellent rate capability of 74.77% even at 70 mA cm-2. Furthermore, HC/NF device achieved maximum energy and power densities of 1.39 mW h cm-2 and 42.35 mW cm-2, respectively. To verify practical applicability, both devices were also tested to serve as a self-charging station for various portable electronic devices.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Jie Zeng, Jian Bao, Ya Zhang, Xun-Lu Li, Cui Ma, Rui-Jie Luo, Chong-Yu Du, Xuan Xu, Zhe Mei, Zhe Qian, Yong-Ning Zhou
Summary: The balance between cationic redox and oxygen redox is crucial for achieving high energy density and cycle stability in sodium batteries. This study demonstrates the reversible Mn2+/Mn4+ redox in a P3-Na0.65Li0.2Co0.05Mn0.75O2 cathode material through Co substitution, effectively suppressing the contribution of oxygen redox and improving structure stability.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Daniela M. Josepetti, Bianca P. Sousa, Simone A. J. Rodrigues, Renato G. Freitas, Gustavo Doubek
Summary: Lithium-oxygen batteries have high energy density potential but face challenges in achieving high cyclability. This study used operando Raman experiments and electrochemical impedance spectroscopy to evaluate the initial discharge processes in porous carbon electrodes. The results indicate that the reaction occurs at the Li2O2 surface and the growth of Li2O2 forms a more compact and homogeneous structure.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Applied
Ziqi Zhang, Jinyun Xu, Yu Zhang, Liping Zhao, Ming Li, Guoqiang Zhong, Di Zhao, Minjing Li, Xudong Hu, Wenju Zhu, Chunming Zheng, Xiaohong Sun
Summary: This paper explores the challenge of increasing global CO2 emissions and highlights the role of porous metal oxide materials in electrocatalytic reduction of CO2 (CO2RR). Porous metal oxides offer high surface area and tunability for optimizing CO2RR reaction mechanisms.
JOURNAL OF ENERGY CHEMISTRY
(2024)
