Article
Chemistry, Physical
Sandeep Kanade, Manu Gautam, Anuradha Ambalkar, Yogesh Sethi, Musthafa Ottakam Thotiyl, Bharat B. Kale, Anil B. Gambhire
Summary: A facile synthesis of multilayered VC@rGO nanocomposite material has been demonstrated, which shows superior specific capacity, long-term cyclic stability, and rate performance when used as an anode in both lithium-ion and sodium-ion batteries.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Haitao Gu, Yong Wang, Yun Zeng, Meng Yu, Tong Liu, Jian Chen, Ke Wang, Jingying Xie, Linsen Li
Summary: Dopamine-polymerization-guided carbon coating of SiOx anodes improves their electrochemical performance and cycling life. Suppression of cracks and excessive growth of the solid electrolyte interphase (SEI) layer contributes to the enhanced performance and stability.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Electrochemistry
Zhaolin Li, Xin Tao, Yaozong Yang, Nana Yao, Zhao Yang, Dawei Luo, Jie Wang, Hailei Zhao
Summary: By using surface engineering, a graphene-coated microsized SiOx material was successfully achieved, which improves the structural integrity and cyclic performance of the electrode.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Physical
Zehao Zhang, Xiang Liu, Youjun Lu, Haibo Li
Summary: This work proposes a facile covalent self-assemble strategy to prepare the ZrN@rGO composite for enhanced LIB. The results show that a strong Zr-C covalent bond is formed between ZrN and rGO, and electron transfer promotes charge density at the ZrN@rGO heterointerface. The volume change of ZrN can be effectively alleviated by coupling with rGO, leading to a high specific capacity in the lithium-ion battery.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Jens Sandherr, Max-Jonathan Kleefoot, Sara Nester, Christian Weisenberger, Anjali K. M. DeSilva, Dominik Michel, Sarah Reeb, Mathias Fingerle, Harald Riegel, Volker Knoblauch
Summary: This paper proposes a novel approach of micro embossing for improving the performance of graphite-based anodes in lithium-ion batteries. The method enhances the hole structure, reduces the resistance, and increases the charging speed. Compared to laser processing, micro embossing results in better hole geometry and less loss of active material, leading to improved capacity retention.
JOURNAL OF ENERGY STORAGE
(2023)
Review
Energy & Fuels
Edigar Muchuweni, Edwin T. Mombeshora, Cosmas M. Muiva, T. Stephen Sathiaraj
Summary: Lithium-ion batteries (LIBs) have gained significant attention as energy sources for portable electronic devices, and efforts to improve their performance have focused on developing low-cost electrode materials with high reversible capacity. This review highlights the use of graphene-based materials to enhance the cycling life and rate capability of LIBs.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Memona Idrees, Ahmed S. Haidyrah, Ata-ur-Rehman, Qin Zhang, Xuanke Li, Syed Mustansar Abbas
Summary: Fe2N decorated on reduced graphene oxide (rGO) prepared by a hydrothermal reaction showed promising lithium-ion battery performance, with higher capacity and lower capacity fading rate. The conductive graphene network facilitated charge transfer reactions, while mesoporous Fe2N aided in electrolyte penetration and intercalation/deintercalation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Huaiyang Chen, Xiaoping Shen, Zhenyuan Ji, Jia Cheng, Guangxiang Liu, Leiming Lang, Yao Chen
Summary: In this paper, porous Mn3O4-Fe3O4 nanoparticles are anchored on reduced graphene oxide (rGO) nanosheets to form Mn3O4-Fe3O4/rGO composites. The composites exhibit superior electrochemical lithium storage performances, including high reversible capacity, good rate capability, and strong long-term cycle stability. The study demonstrates that graphene not only provides conductivity, but also mitigates volume expansion and prevents nanoparticle aggregation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Analytical
Jiarui Huang, Qingshan Dai, Chengjie Cui, Hiabo Ren, Xiaojing Lu, Yong Hong, Sang Woo Joo
Summary: A cake-like porous Fe3O4 coated with a carbon layer (Fe3O4@C nanocakes) has been prepared and used as an anode for lithium-ion batteries (LIBs). The Fe3O4@C nanocakes show superior electrochemical properties and rate behavior, making them a potential electrode for LIBs with high specific capacities.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Physical
Caili Yang, Yixin Ran, Chenxi Gao, Zuyong Wang, Yuan-Li Ding
Summary: Li3VO4 is a promising intercalation anode material for lithium-ion batteries, but it has poor electronic conductivity. To address this issue, researchers developed a self-template strategy to construct 3D hierarchical Li3VO4/C hybrids, which show efficient electron/ion transport system.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Wenshuai Lang, Chuang Yue, Man Dang, Gang Wang, Yimin Chen, Fang Hu, Zhiming Liu, Jie Shu
Summary: Three-dimensional graphene networks were successfully fabricated on nickel foam using chemical vapor deposition technique, followed by the deposition of amorphous Ge layer using radio frequency magnetron sputtering method. The Ge-decorated graphene networks exhibited improved electrochemical performance as anodes for lithium-ion batteries compared to directly coated two-dimensional Ge nanoelectrodes on bare Ni foam. The optimized 3D Ge@Gr hybrid electrode achieved significantly enhanced electrochemical cyclability for 1500 long-term cycles under higher current density of 1.2 mA cm-2. The interconnected 3D graphene with enlarged surface area effectively buffered the volume change of the Ge anode and improved electrical/ionic conductivity, resulting in superb stable cyclability.
JOURNAL OF POWER SOURCES
(2023)
Article
Energy & Fuels
Yong Guo, Yingying Hu, Qianjun Zhang, Guanqiang Ruan, Yiyang Mao, Huihui Zhang, Ruilin Wang, Pei Zhao, Meng Li, He Tang, Dezhong Zhang, Lianyi Xu, Min Jin, Kun Ding, Baofeng Wang
Summary: The researchers developed a SnO2@GO@MWNTs composite as an anode material for lithium-ion batteries, which successfully addressed the issues of low conductivity and volume expansion of commercial SnO2. The composite electrode exhibited excellent cycling performance and rate performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Kefyalew Wagari Guji, Wen-Chen Chien, Fu-Ming Wang, Alagar Ramar, Endazenaw Bizuneh Chemere, Lester Tiong, Laurien Merinda
Summary: In this study, potassium-ion batteries (KIBs) with high output voltage and energy density were prepared and successfully applied as anode materials. After 200 cycles, the K-MA_KFSI and K-MA_LiFSI anode materials delivered capacities of 172 and 485 mA h g(-1) respectively.
Article
Electrochemistry
James Sturman, Yong Zhang, Chae-Ho Yim, Svetlana Niketic, Mathieu Toupin, Elena A. Baranova, Yaser Abu-Lebdeh
Summary: Silicon nanoparticles coated with a layer of Li4Ti5O12 (LTO) ceramic using a water-based sodium alginate binder show improved battery performance when combined with graphite. The composite electrodes exhibit high initial capacity and good capacity retention, outperforming other silicon composites. Si@LTO + graphite composites are a promising solution for stable and high-energy-density lithium-ion batteries with silicon integration.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Rui Yu, Rongli Jiang, Zihan Zhou
Summary: To solve the problem of capacity attenuation in SiO2 during charge and discharge, a rGO@yolk-shell SiO2 structure was designed using reduced graphene oxide as the conductive network and loading carbon-coated SiO2 as the yolk-shell structure. The yolk-shell structure effectively mitigates volume change without damaging the carbon layer, and the combination of rGO and the carbon layer enables efficient electron transport. As an anode material for lithium-ion batteries, rGO@yolk-shell SiO2 exhibits stable cycling performance with a capacity of 616 mAh g-1 after 358 cycles at 0.1 A g-1. (c) 2022 Elsevier B.V. All rights reserved.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Du Yeol Jo, Seung-Keun Park
Summary: Hollow nanostructures composed of tin-cobalt bimetallic selenides and N-doped carbon sheath (CS-Se@NC) were successfully fabricated for potassium ion batteries, exhibiting high potassium storage performance and excellent cycling performance. The N-doped carbon coating reinforced the composite against particle pulverization while improving electrode conductivity.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Su Hyun Yang, Yun Jae Lee, Heemin Kang, Seung-Keun Park, Yun Chan Kang
Summary: In this study, a novel synthetic strategy is proposed to convert MXene into restacking-inhibited three-dimensional (3D) balls coated with iron selenides and carbon. The resulting 3D structured microspheres exhibit high reversible capacity and excellent cycling stability in potassium-ion batteries. This strategy addresses the restacking issue of MXene nanosheets and enhances the electrochemical performance of MXene-based materials.
NANO-MICRO LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Mulugeta Gebrekiros Berhe, Hong Geun Oh, Seung-Keun Park, Dongkyoung Lee
Summary: This study investigated the effect of laser cutting on silicon anodes and analyzed the impact of cutting widths and process parameters on the cutting widths. Cutting speed had the largest contribution to the formation of kerf width, clearance width, and burr width, while laser power had a significant impact on the formation of top width.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Yu Jin Jang, Seung-Keun Park
Summary: In this study, a hierarchically structured Ni-Mo bimetallic selenide/N-doped carbon microsphere (NMSe/NC) is designed as an advanced anode material for potassium ion batteries (KIBs). The unique hierarchical surface structure and the synergistic effect of Mo and Ni species provide sufficient electrochemical reaction sites and promote the reaction kinetics. The resulting NMSe/NC hierarchical microspheres exhibit excellent electrochemical performance, indicating their potential for commercialization in large-scale energy storage systems.
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Hong Geun Oh, Seung-Keun Park
Summary: In this research, one-dimensional hybrid nanostructures, MC-Se@NC, composed of a MoSe2 core and a CoSe2/N-doped carbon shell, were successfully synthesized. The unique morphology and synergistic effect between different elements provide sufficient reaction sites and improve the reaction kinetics. The MC-Se@NC anode demonstrated high reversible capacity and remarkable rate capability when applied to potassium ion batteries. These excellent electrochemical properties suggest the potential commercialization of KIB-based large-scale energy storage systems.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Yun Jae Lee, Seung-Keun Park
Summary: In this study, a bifunctional electrocatalyst composed of hollow CoSx and Ni-Fe based layered double hydroxide (NiFe LDH) nanosheets was developed for efficient overall water splitting. The catalyst exhibits excellent HER and OER activities with low overpotentials and good durability.
Article
Chemistry, Physical
Do Yeol Jo, Seung-Keun Park
Summary: This study presents the design of mesoporous ZnSe nanobelts coated with N-doped carbon for high-performance K-ion batteries. The MP-ZnSe@NC electrode exhibits stable reversible capacity and remarkable rate capability, making it a promising candidate for practical applications.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Environmental
Du Yeol Jo, Seung-Keun Park
Summary: In this study, porous solid-solution Cu-Zn selenide nanobelts coated with N-doped carbon (p-CZSe@NC NBs) were successfully fabricated using a cation-exchange process. The p-ZnSe@NC NBs were prepared by polymer coating on ZnSe[diethylenetri-amine]0.5 followed by carbonization. The synergetic effect of electrochemically active Zn and inactive Cu in response to K ions and the inner pores of the NBs contributes to the improved performance of the p-CZSe@NC NB electrode.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Yu Jin Jang, Youngjae Yoo, Seung-Keun Park
Summary: Constructing hierarchical architecture consisting of low-dimensional building blocks is a promising strategy for achieving high electrochemical performance for lithium-ion batteries. In this study, the researchers demonstrate a convenient synthesis method for Co-Mo oxide composites embedded in a hierarchical N-doped carbon microflower. The hierarchical microflowers exhibit advantages such as increased contact area, abundant ion storage sites, and high electrical conductivity, leading to improved electrochemical performance. The results highlight the significance of designing hierarchical structured materials for enhancing electrochemical energy storage applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yu Jin Jang, Hong Geun Oh, Seung-Keun Park
Summary: We designed a hollow mesoporous carbon bowl embedded with ultrafine bis(selanylidene)iron (FeSe2) nanocrystals (FeSe2@HMCB) via a controllable impregnation method and subsequent selenization process for high-performance potassium-ion batteries (KIBs). The FeSe2@HMCB inherits the advantages of conventional hollow carbon-based composites and exhibits a significant increase in the volumetric energy density of the fabricated electrodes.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Energy & Fuels
Heegyeom Jeon, Jeong Ho Na, Yong Seok Kim, Seung-Keun Park, Youngjae Yoo
Summary: In this study, wave-selective emitter coolers were fabricated using glass bubbles and barium sulfate, and polyacrylonitrile nanofibers were electrospun on these coolers. The optical properties and cooling power were analyzed based on the ratio of glass bubbles and barium sulfate, as well as the electrospinning conditions. The cooler with the added electrospinning layer showed higher reflectivity and cooling power compared to the cooler containing only polydimethylsiloxane/glass bubbles and barium sulfate. This study improves the performance of previously studied passive radiative cooling.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2023)
Article
Chemistry, Physical
Hong Geun Oh, Seung-Keun Park
Summary: A facile spray-drying process is used to encapsulate hollow CoSnO3 nanoboxes in MXene nanosheets, forming three-dimensional MXene-based microspheres as an anode for LIBs. This 3D structure effectively inhibits the restacking of MXene nanosheets and provides more active sites for Li+ storage. The encapsulation of hollow CoSnO3 nanoboxes in an MXene shell also restricts volume changes during cycling, preventing structural collapse and ensuring stable performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Mulugeta Gebrekiros Berhe, Hong Geun Oh, Seung-Keun Park, Mounarik Mondal, Dongkyoung Lee
Summary: Lithium-ion batteries are crucial for the environmentally friendly future energy system due to their high energy density, high power density, long lifetime, and safety. The electrodes, especially LiFePO4, play a key role in determining battery performance. Laser structuring of electrodes has been considered a promising approach to increase energy density.
MATERIALS & DESIGN
(2023)
Article
Chemistry, Physical
Jeong Ho Na, Hong Geun Oh, Seunghwa Lee, Seung-Keun Park
Summary: In this study, 3D MXene-based microspheres encapsulating MOF-derived ZnSe@NC nanoparticles were successfully fabricated by spray drying. The 3D structure effectively prevented restacking of MXene nanosheets and provided a large surface area with abundant ion storage sites. The uniform distribution of the ZnSe@NC nanoparticles within the MXene matrix not only prevented the aggregation of ZnSe crystals during cycling but also enhanced the electrical conductivity. The resulting 3D MX/ZnSe@NC exhibited remarkable cycling stability and excellent rate performance, showing great potential as an anode material for PIBs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Hong Geun Oh, Jeong Ho Na, Seung-Keun Park
Summary: In this study, porous 3D carbon microspheres were fabricated via a simple spray-drying method and used as electrode materials in potassium-ion batteries. The composite exhibited excellent electrochemical properties, including stable cycling performance and improved ion transport kinetics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)
