Article
Chemistry, Physical
Ran Liu, Xiaoning Zhao, Liang Liang, Ran Li, Peilei Fan, Jingjing Li, Haibo Zhao
Summary: A spongy three-dimensional (3D) porous MnO/C composite with homogeneous distribution and uniform size ultrafine MnO nanoparticles embedded into 3D porous carbon network was fabricated. The composite exhibited improved electrical conductivity and effectively restrained the crushing and pulverizing of the electrode. As an anode for LIBs, it demonstrated superior rate capability and excellent cycling stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Lingfeng Zhu, Yun Wang, Minji Wang, Yaping Xiong, Ze Zhang, Ji Yu, Yaohui Qu, Jianxin Cai, Zhenyu Yang
Summary: Inspired by the structure of areca, MnO@C composites with a core-shell structure were successfully prepared and demonstrated superior performance in lithium-ion batteries. The formation mechanism of the composites was successfully clarified through heterogeneous contraction and carbon pyrolysis processes.
Article
Chemistry, Physical
Rundie Liu, Zhenguo Wu, Qin Hu, Gongke Wang, Yuxia Liu, Benhe Zhong, Xiaodong Guo
Summary: A nitrogen-doped straw sheaf-like porous MnO@C composite was synthesized via a hydrothermal method and subsequent annealing, showing attractive electrochemical properties for use as an anode in high-performance lithium/sodium-ion batteries. The composite demonstrated a high reversible capacity in both LIBs and SIBs, with excellent cycling stability and improved performance compared to commercial MnO particles. This study opens up possibilities for the fabrication of MnO@C-N nanocomposites for advanced battery applications.
Article
Engineering, Environmental
Lin Sun, Xiaowen Jiang, Zhong Jin
Summary: SiOx@C anodes have been considered as promising candidates for next-generation high-capacity LIBs due to their high capacity and superior performance. In this study, a simple interfacial engineering approach was used to achieve a compact carbon layer on SiOx@C anodes, resulting in excellent performance and superior Li-ion storage capability when coupled with LiCoO2 cathode.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Ceramics
Shuangze Yang, Zhimin Zou, Chunhai Jiang
Summary: Ternary MnO/MnTiO3@C composite anode materials are prepared by capturing TiO2 nanoparticles into MnO2 through a hydrothermal reaction, followed by resin coating and thermal treatment. The optimized composite anode shows enhanced cycling performance and stable capacity, making it a promising alternative to graphite for Li-ion batteries.
CERAMICS INTERNATIONAL
(2023)
Article
Green & Sustainable Science & Technology
Jiao Peng, Wangwu Li, Zhenyu Wu, Hui Li, Peng Zeng, Gairong Chen, Baobao Chang, Xiaoyan Zhang, Xianyou Wang
Summary: A composite architecture based on nano Si embedded into three-dimensional porous N-doped carbon and combined with carbon nanotubes was designed and constructed, achieving significant improvement in the electrochemical performance of the Si anode for lithium-ion batteries.
SUSTAINABLE MATERIALS AND TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Miaoxin Di, Zhenqi Song, Suhua Chen, Ying Bai
Summary: The research team constructed a composite material of cobalt-doped zinc sulfide encapsulated in a carbon shell, which effectively improves sodium storage performance, and the mechanism analysis proves its accelerated ion diffusion. The composite material exhibits high reversible capacity and excellent rate performance, making it an effective anode material for sodium-ion batteries.
Article
Crystallography
Yanjun Zhai, Longhui Gai, Yingjian Gao, Ziwei Tong, Wenlin Wang, Huimei Cao, Suyuan Zeng, Konggang Qu, Zhongchao Bai, Gang Tian, Nana Wang
Summary: In this study, a three-dimensional ground-moss-like MnO@N-doped carbon composite was synthesized and used as an anode material in lithium-ion batteries. The composite exhibited improved performance compared to pure MnO, thanks to the three-dimensional carbon networks that enhanced MnO's electron transfer ability and accommodated volume changes during cycling.
Article
Chemistry, Physical
Sainan Zhang, Yingming Xu, Xiaoli Cheng, Shan Gao, Xianfa Zhang, Hui Zhao, Lihua Huo
Summary: In this work, flower-like Mn-based coordination polymers constructed by nanosheets were designed and synthesized, and hierarchical structured MnO/NC composites were successfully obtained through calcination. The composites exhibited a unique yolk-shell structure composed of micro-flowers assembled from nitrogen-doped carbon nanosheets uniformly loaded with MnO nanoparticles as the outer shell and MnO/NC nanoparticle aggregates as the inner core. The composites demonstrated high specific capacity and excellent long cycle stability, attributed to the synergistic effect of the yolk-shell structure and continuous nitrogen-doped carbon coating.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Yumei Wang, Jimei Song, Guofu Huang, Xiuting Lang, Shuqian Zhang
Summary: Graphite-Co3O4 nanorods exhibit excellent high rate capacity and long cycling life in lithium-ion batteries. The introduction of graphene not only enhances the conductivity of Co3O4, but also alleviates nanoparticle aggregation and provides a large electrode-electrolyte interface contact area. Furthermore, the structure of interconnected Co3O4 nanoparticles helps reduce the diffusion distance of lithium ions and facilitates electron transport, contributing to optimal cycling performance.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Haofeng Shi, Wenyuan Zhang, Jiashuai Wang, Donghua Wang, Chengdeng Wang, Zhihao Xiong, Jun Wu, Zhiming Bai, Xiaoqin Yan
Summary: The authors synthesized a copper-doped silicon/carbon porous composite, which significantly improved the electronic conductivity of the material. By adjusting the copper content, the initial coulombic efficiency was greatly increased. The optimized anode exhibited excellent rate capability and cycle stability, indicating its potential for commercial application.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Physical
Ran Liu, Xiaohong Chen, Huaihe Song, Changdong Li
Summary: MnO/C-graphene composite aerogels were fabricated by a sol-gel method and showed excellent lithium storage performance due to the unique architecture with dual-carbon decorated MnO and large surface area.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Qiuyan Li, Ran Yi, Yaobin Xu, Xia Cao, Chongmin Wang, Wu Xu, Ji-Guang Zhang
Summary: This study focuses on the design and failure analysis of a silicon (Si) anode for lithium-ion batteries (LIBs). The volumetric energy density of the Si anode depends heavily on factors such as Si/C loading, anode calendering density, first-cycle coulombic efficiency, and anode capacity density. Stable Si/C electrode structure is crucial for long-term cycling, and the degree of prelithiation needs to be balanced with cycle life.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Physical
Jiao Li, Mengya Wang, Jianguo Huang
Summary: A porous SnS/C composite with a unique three-dimensional structure and fibrous carbon conductive matrix was synthesized and showed outstanding electrochemical performance as an anodic material in lithium-ion batteries. The composite facilitated electrode-electrolyte contact, inhibited particle aggregation, and promoted electron transfer and lithium-ion diffusion during charge/discharge processes, leading to high specific capacity, long cycle life, and good rate capacity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Pandeng Zhao, Shaqi Fu, Xue Wang, Zheng Jiao, Lingli Cheng
Summary: Complex hollow structure nanostructure, specifically the ZnS/NiS/NiS2 composite with a distinctive hierarchical hollow porous urchin-like structure, has shown excellent electrochemical performance as an anode material for lithium-ion batteries. The composite exhibits high porosity, large specific surface area, and a strong synergetic interaction between ZnS and NiS/NiS2, enabling efficient lithium-ion transfer and maintaining mechanical stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Wangzhu Cao, Kunfeng Chen, Dongfeng Xue
Summary: In this study, vertically oriented TiO2 nanotube arrays were successfully grown using self-organizing electrochemical anodization, with different parameters affecting their morphology studied. Optimized TiO2 nanotubes with tube diameters of 70-160 nm and tube lengths of 6.5-45 µm were obtained. As lithium-ion battery anodes, they exhibited good kinetic, capacity, and stability performances.
Article
Materials Science, Ceramics
Wenyan Huang, Sridhar Komarneni, Young Dong Noh, Kunfeng Chen, Dongfeng Xue, Hiroaki Katsuki, Jianfeng Ma, Xiaoqiang Xue, Hongjun Yang
Summary: Microwave-hydrothermal synthesis of α-Sn(HPO4)2•H2O (α-SnP) was achieved in as low as 5 minutes at 194 ℃, greatly reducing the reaction time compared to previous methods. The super fast synthesis was attributed to localized superheating, where nucleation and reactions occurred rapidly. Characterization using various microscopy techniques revealed different morphologies of α-SnP under varying conditions.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Shilei Chang, Minjie Hou, Bowen Xu, Feng Liang, Xuechao Qiu, Yaochun Yao, Tao Qu, Wenhui Ma, Bing Yang, Yongnian Dai, Kunfeng Chen, Dongfeng Xue, Huaping Zhao, Xiaoting Lin, Fanny Poon, Yong Lei, Xueliang Sun
Summary: Rechargeable Na-air batteries have high theoretical specific energy density, lower cost, and lower charge potential, but require high purity O2 and face challenges in long cycle and high safety. A quasi-solid-state Na-air battery with a gel cathode achieved high safety and long cycling life by utilizing a gel cathode.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Wenyan Huang, Kunfeng Chen, Sridhar Komarneni, Dongfeng Xue, Hiroaki Katsuki, Woo-Seok Cho, Xiaoqiang Xue, Hongjun Yang, Jianfeng Ma
Summary: This study demonstrates the importance of crystal size and structure of iron oxides in tailoring them for electrode materials. Hematite and akaganeite outperform ferrihydrite in terms of electrochemical properties, even though ferrihydrite has the smallest crystals.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Nanoscience & Nanotechnology
Minjie Hou, Xiecheng Yang, Feng Liang, Peng Dong, Yuneng Chen, Jinran Li, Kunfeng Chen, Yongnian Dai, Dongfeng Xue
Summary: This study comprehensively investigated the corrosion mechanism of NASICON solid electrolyte in acidic solutions with different pH values at multiscale levels, revealing that the decrease in solution pH leads to increased exchange rate between H3O+ and Na+ protons, resulting in crystal lattice distortion and surface crack formation. Various techniques including SEM, XPS, XRD, and Raman spectroscopy were employed to study the morphological transformation, Cl- penetration effect, and proton exchange, providing a deeper understanding of the chemical stability of solid electrolytes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Environmental
Siqi Liu, Wandi Kuang, Xiangjian Meng, Weiliang Qi, Samira Adimi, Haichuan Guo, Xuyun Guo, Erum Pervaiz, Ye Zhu, Dongfeng Xue, Minghui Yang
Summary: This study reports the synthesis of one-dimensional Co4N-WNx-CdS composites using an efficient electrostatic self-assembly process for visible light-driven hydrogen evolution in pure water. The composites exhibit a high rate of photocatalytic hydrogen evolution under vacuum condition, which is significantly higher than that of traditional Pt-CdS composites.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Physical
Qianyu Hu, Kunfeng Chen, Fei Liu, Mengying Zhao, Feng Liang, Dongfeng Xue
Summary: This paper provides an overview of the application and challenges of machine learning in materials prediction. Taking solid-state electrolytes as an example, it outlines the general process of machine learning in materials prediction and reviews recent approaches and specific applications. The paper also highlights the obstacles caused by disciplinary span and aims to raise awareness among materials scholars about the application of machine learning in materials prediction.
Review
Materials Science, Multidisciplinary
Guoqiang Shi, Dongfeng Xue
Summary: Functional materials exhibit diverse performances due to degrees of freedom in the lattice framework. Research on quantum materials can provide insights into multiscale processes. Understanding the sources of properties of functional materials from multiple degrees of freedom is crucial for their design.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2022)
Article
Physics, Applied
Feng Liu, Kunfeng Chen, Chao Peng, Dongfeng Xue
Summary: This study investigates the multiscale behaviors of sapphire crystal growth along different crystal directions through theoretical and experimental studies. The results show that the growth behavior of sapphire along the c-axis is more complex compared to that along the a- and m-axes, involving solid-liquid and solid-solid transformations. Moreover, an abrupt change in the interfacial structure inhibits the transformation of liquid Al2O3 into α-Al2O3 along the c-axis.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Chun Cai, Dantong Zhang, Qi Zhang, Kunfeng Chen, Wenchao Hua, Chao Peng, Dongfeng Xue
Summary: The stability of lattice oxygen and transition metal sites in LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode were systematically explored, and the importance of manganese was demonstrated. The effects of lithium vacancies on lattice oxygen and transition metal were investigated through vacancy formation energy, unpaired spins, and net charge. This study provides insights into oxygen release and transition metal dissolution in Ni-rich NCM811.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Fei Liu, Mengying Zhao, Kunfeng Chen, Mei Hu, Dongfeng Xue
Summary: This work demonstrates that Ce3+-regulated CoNi-LDHs significantly enhance the kinetics of electron transfer and ion motion by increasing layer positive charges and weakening O-H bonds. The addition of Ce3+ also decreases the energy barrier of proton diffusion and increases the hole carrier concentration, resulting in high rate capacitance and fast charge storage kinetics.
Article
Chemistry, Multidisciplinary
Xianjie Zhang, Feng Liu, Kunfeng Chen, Guilin Zhuang, Chao Peng, Dongfeng Xue
Summary: Investigating the liquid structure of yttrium aluminum garnet (YAG) at high temperatures is significant for various fields, and molecular dynamic simulations were used to study the structure of YAG within a certain temperature range and to grow a YAG single crystal. The coordination number and bond length between cations and anions changed after melting, which can be explained by Pauling's third rule. In the liquid YAG, the coordination number decreased and the main structural units were AlO4 and YO7, which provided insight into phase selection and enabled rapid growth of YAG using the Czochralski method.
Article
Chemistry, Physical
Man Huang, Baojuan Xi, Nianxiang Shi, Jinkui Feng, Yitai Qian, Dongfeng Xue, Shenglin Xiong
Summary: This study presents a novel anode material with heterostructures made of Bi/TiO2 quantum dots embedded into N-doped carbon nanosheets. The integrated design greatly reduces the migration energy barrier of Na+, promotes electron/Na+ transportation, and enhances the electric conductivity and electrochemical reactivity. The Bi/TiO2 HQDs subset of NC hybrid nanosheets show excellent sodium storage properties with high reversible capacity, high rate capability, and long cycle life.
Article
Nanoscience & Nanotechnology
Wei Pan, Mu Zhang, Dongfeng Xue, Xudong Sun
Summary: Prussian blue is a compound with a consistent three-dimensional structure that allows reversible insertion of cations into materials and has diverse electrochemical properties. These materials are synthesized by low-cost precipitation method, exhibiting different morphologies that impact their electrochemical properties, influenced by factors such as particle morphology and transition metal cations.
SCIENCE OF ADVANCED MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Wei Pan, Mu Zhang, Wenyi Tang, Yanyan Man, Kunfeng Chen, Dongfeng Xue, Xudong Sun
Summary: Utilizing a system with a basic polymerized ferric sulfate (BPFS) electrolyte and electroactive graphite electrode, this research achieved high area capacitance and revealed different characteristics of active sites. The study demonstrates that carbon materials are electrochemically activated and can react with iron groups in aqueous solutions, pointing towards the potential development of a low-cost, high energy storage, and high safety system.
SCIENCE OF ADVANCED MATERIALS
(2021)
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)
