Article
Chemistry, Physical
Ling Huang, Ying Wang, Qing Zhou, Fangming Xiao, Yu Guo, Renheng Tang, Wenchao Li
Summary: In this study, a new concentration-gradient LiNi(0.80)Co(0.15)Al(0.05)O(2) cathode material was designed and synthesized, showing promising discharge capacity and excellent capacity retention after cycling.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Xinhang Liu, Lirong Zhang, Xinzhi Ma, Huiqing Lu, Lu Li, Xitian Zhang, Lili Wu
Summary: In this study, one-dimensional porous carbon-encapsulated CoP nanotube-like nanostructures were designed and prepared to address the shuttle effect and slow redox kinetics in lithium-sulfur batteries. The CoP quantum dots in the structure can capture and catalyze polysulfides, leading to improved battery performance. Experimental results demonstrate that the prepared CoP@C/MWCNT/S electrode exhibits high capacity, cycling stability, and remarkable rate capability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Electrochemistry
Yingge Chang, Yiming Ren, Liukai Zhu, Yu Li, Tao Li, Baozeng Ren
Summary: This study focuses on the use of macadamia nut shells as a precursor to prepare porous carbon material for lithium-sulfur batteries. The research explores the effect of temperature on the microstructure and electrochemical performance of the carbon material. The findings show that the carbon material prepared at 900 degrees C has a developed pore structure, high specific surface area, and larger pore volume. By compounding it with carbon nanotubes, the composite material exhibits higher specific capacity, better rate performance, and cycle performance.
ELECTROCHIMICA ACTA
(2022)
Article
Metallurgy & Metallurgical Engineering
Xiang-Rui He, Yu-Jiao Zhang, Li-Fan Yang, Ji-Lu Zhao, Hong-Tai Li, Yi-Bo Gao, Bao Wang, Xiao-Dong Guo
Summary: By assembling core-shell structure Fe3O4@C nanodots as a valid sulfur host in lithium sulfur battery, a higher initial capacity and cycling stability are achieved.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2021)
Article
Electrochemistry
Jik Soo Kim, Seonghyeon Lim, Hirokazu Munakata, Sung-Soo Kim, Kiyoshi Kanamura
Summary: To overcome the poor cyclability and thermal instability of Nickel-rich NCM cathode materials, CSG (core shell gradient NCM) with concentration gradient control was developed. The study investigated the relationship between gradient structure and electrochemical properties through single particle measurement, showing that CSG has unique electrochemical properties compared to conventional NCM. CSG demonstrated higher discharge capacity and lower charge transfer resistance, with a lithium diffusion coefficient ten times higher than conventional NCM. This high diffusion coefficient not only improves rate capability, but also enhances cycle life by reducing internal stress during cycling.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Jiawei Zheng, Jianwen Yang, Jinmei Wu, Shengxian Li, Mengwen Wang, Bin Huang, Yanwei Li, Shunhua Xiao, Qing Zhu
Summary: Cathode materials LiFe0.5Mn0.5-xYxPO4@C (x = 0, 0.005, 0.01, 0.02, and 0.03) were synthesized and characterized. Y3+ doping led to volume shrinkage, carbon coating, and improved particle size and dispersion. The preferred LiFe0.5Mn0.49Y0.01PO4@C sample exhibited enhanced electrochemical performance with decreased polarization and improved ion diffusion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Jia Qiao, Fei Tao, Guokang Wei, Xiaohui Zhang, Wei Xie, Xin Li, Jianhong Yang
Summary: Aluminum ion batteries (AIBs) are currently gaining attention due to their high capacity, low cost, and safety, but their practical applications are limited due to the lack of suitable cathodes and complex energy storage mechanisms. Polyaniline, a type of conducting polymer, shows promise but has not been extensively studied for AIBs. In this study, emeraldine base polyaniline (PANI) was synthesized and used as a cathode in an Al/PANI cell with a chloroaluminate ionic liquid electrolyte. The PANI cathode exhibited better electrochemical performance, higher discharge specific capacity, and improved capacity retention compared to protonated polyaniline cathodes, due to a novel conversion process and reversible doping of chloroaluminate ions in the PANI-AlCl3 complex. These findings contribute to the development of high-performance AIBs with conducting polymers as cathode materials and provide insights into their charge storage and reaction mechanisms.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Dianming Li, Hongtai Li, Shumin Zheng, Ning Gao, Shuai Li, Jing Liu, Lanlan Hou, Jingchong Liu, Beibei Miao, Jie Bai, Zhimin Cui, Nu Wang, Bao Wang, Yong Zhao
Summary: This study analyzes the challenges of lithium-sulfur batteries and proposes a method of using core-shell fibers to construct electrodes, which effectively improves the performance of the battery, including initial specific capacity and cycling stability.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Mohammad Amin Razmjoo Khollari, Mojtaba Khalili Azar, Mehdi Esmaeili, Naeim Malekpour, Seyed Morteza Hosseini-Hosseinabad, Roozbeh Siavash Moakhar, Abolghasem Dolati, Seeram Ramakrishna
Summary: Coating the NCM811 cathode material with TiO2 nanoparticles improves its structural stability, electrochemical performance, and safety at both room and high temperatures, leading to increased capacity retention and discharge capacity. Surface modification with TiO2 NPs is a practical and cost-effective method for enhancing the performance of the high energy density NCM811 cathode in commercial applications.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Energy & Fuels
Chao Zhang, Man Yu, Peng Wang, Kaixing Zhu, Wenjun Wang
Summary: In this study, a hierarchical core shell structure was developed by growing a ZIF-67 core within a hollow carbon sphere, which exhibited synergistic effects as a sulfur host in lithium sulfur batteries. The resulting composite cathode showed high initial reversible capacity and outstanding long-term stability, indicating the potential of rational designing of sulfur host materials for improved electrochemical performances of LSB.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Yang Zhang, Can Cui, Jie Liu, Yiying Bei, Yingying Li, Zheng Song, Yaxin Feng, Heng Xu, Suhuan Tian, Ye Song, Fengsheng Li
Summary: This study introduces a strategy of co-modification with Nb doping and LiBO2 coating to improve the electrochemical performance of LiNixCoyMn1-x-yO2 (NCM) materials. Experimental results demonstrate that this co-modification method can effectively stabilize the internal structure, reduce cation mixing, and improve the cycling stability of the materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Electrochemistry
Yulong Liu, Dongxu Ouyang, Divya Rathore, Haohan Wu, Kui Li, Yiqiao Wang, Jin Sha, Shuo Yin, J. R. Dahn
Summary: The heating temperature during the synthesis of Co-free Ni-rich core-shell precursors plays a crucial role in determining the properties of the materials. Properly selected heating temperature can lead to materials with core-shell structure that exhibit excellent specific capacity, capacity retention, and safety performance. Materials with a thick and Mn-rich shell show the least reactivity with electrolyte at elevated temperatures, suggesting they may lead to the safest Li-ion cells.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Rongkai Kang, Yiqun Du, Wei Zhou, Dongmei Zhang, Wenyang Zhang, Jiaqi Wan, Guowen Chen, Jianxin Zhang
Summary: A novel electrode material NiCoSe2@F-C has been designed in this study to enhance the electrochemical performance of RABs. The core-shell structure and large surface area of NiCoSe2@F-C play a significant role in improving cycling ability, specific capacity, and electrochemical reaction kinetics. The RABs based on NiCoSe2@F-C cathode exhibit high reversible capacity and excellent cycle performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Inorganic & Nuclear
Zhan Gao, Guo-ge Lu, Liu-cheng Cao, Zong-xiu Zhu, Ying-xin Li, Fu-xiang Wei, Zhe Ji, Yan-wei Sui, Ji-qiu Qi, Qing-kun Meng, Yao-jian Ren
Summary: Core-shell structured Mn2O3@ZnMn2O4/C hollow microspheres are reported as an ideal cathode material for AZIBs, addressing the problems of capacity decline and low-rate performance. Its application in AZIBs demonstrates satisfactory rate performance, high cycle stability, and excellent reversibility. With a high reversible capacity reaching 289.9 mA h g(-1) and maintaining 203.5 mA h g(-1) after cycling 700 times at 1000 mA g(-1), this material shows great potential for AZIBs.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Physical
M. A. A. Mohamed, L. Singer, H. Hahn, D. Djendjur, A. Oezkara, E. Thauer, I. G. Gonzalez-Martinez, M. Hantusch, B. Buechner, S. Hampel, R. Klingeler, N. Graessler
Summary: In this study, an antiperovskite (Li2Fe)SeO material was synthesized using a one-step solid-state method. The material showed excellent thermal stability and high cycling performance, making it a promising cathode material for lithium-ion batteries.
JOURNAL OF POWER SOURCES
(2023)
Article
Engineering, Environmental
Chen Li, Qifang Sun, Qing Zhang, Chaoran Xu, Su Wang, Yue Ma, Xixi Shi, Hongzhou Zhang, Dawei Song, Lianqi Zhang
Summary: A multifunctional binder named PLG was developed to address the issues in Li-S batteries. PLG, generated by hydrogen-bonding interaction between polyacrylamide, locust bean gum, and gellan gum, suppresses electrode volume variation and anchors lithium polysulfides. The PLG-based electrode exhibits higher discharge capacity and improved reaction kinetics compared to the PVDF counterpart. This study demonstrates the promising performance of polysaccharide-based binder for wide temperature operable Li-S batteries.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
RuZhao Chen, Bin Fu, Hu Zhang, Jie Hu, Xu Yang, LianQi Zhang
Summary: This study proposes a method of accelerating phase formation of magnetic refrigerants through cold compression plastic deformation at room temperature. The grain structure, phase composition, and magneto-thermal effects of LaFe(13.1)Co(0.7)Si(1.4) alloy were systematically studied. The results show that pre-compressed samples have increased proportion of magnetothermal phase and exhibit significant magnetic entropy changes, making them attractive candidates for room temperature and high-temperature magnetic refrigeration applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Green & Sustainable Science & Technology
Shunjin Yang, Fengming Wan, Aiguo Han, Liran Fang, Qifang Sun, Zixiang Zhao, Dawei Song, Lianqi Zhang, Lifang Chen, Colin A. Wolden, Xin Zhang, Yongan Yang
Summary: We report an environmentally friendly process for scalable production of Li2S without the need for a glove box. The process involves the reaction between Li metal and H2S in ethanol as the solvent, which can be recycled. The production capability reaches 1.0 kg_Li2S/day, 50-100 times larger than previous reports, and the quality of the resulting Li2S is validated for use in lithium-sulfur batteries.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Fangyuan Tu, Zixiang Zhao, Xin Zhang, Zhenyu Wang, Yue Ma, Hongzhou Zhang, Dawei Song, Lianqi Zhang, Yongan Yang, Lingyun Zhu
Summary: A new method for large-scale synthesis of Li2S with a low cost is developed in this study, achieving high yield and low raw material cost. The effectiveness of this method is verified by synthesizing LPSC using the as-prepared Li2S and evaluating its electrochemical performance in all-solid-state lithium batteries.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Nanoscience & Nanotechnology
Qing Zhang, Qifang Sun, Su Wang, Chen Li, Chaoran Xu, Yue Ma, Hongzhou Zhang, Dawei Song, Xixi Shi, Chunliang Li, Lianqi Zhang
Summary: In this work, the authors innovatively introduced the chloride superionic conductor Li2ZrCl6 into the poly(ethylene oxide)-based solid-state polymer electrolyte, which effectively improved the ionic conductivity and mechanical strength. The electrolyte showed a high ionic conductivity of 5.98 x 10-4 S cm-1 and a high Li-ion transference number of 0.44. The interaction between Li2ZrCl6 and PEO was examined, inhibiting the decomposition of PEO and facilitating the uniform deposition of Li ions. The LiFePO4||Li all-solid-state lithium battery with 1% LZC-added composite electrolyte demonstrated excellent cycling performance with a capacity of 145.4 mA h g-1 after 400 cycles at 0.5 C, showing great potential for the next generation of all-solid-state lithium metal batteries.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Shiguang Zhang, Xinyan Li, Yun Su, Yang Yang, Hao Yu, Haibo Wang, Qing Zhang, Yaxiang Lu, Dawei Song, Shanfeng Wang, Qinghua Zhang, Xiaohui Rong, Lianqi Zhang, Liquan Chen, Yong-Sheng Hu
Summary: A rational four-in-one strategy to enhance the performance of Na-x[Ni,Mn]O-2 materials is proposed, involving innovative composition design and elegant synthesis management. After modification, the capacity retention rate of half-cells increases from 45% to 77% after 250 cycles at 1 C rate, and the capacity of full cells is maintained at 83% after 300 cycles at 0.5 C rate. This strategy provides new insights into the overall optimization of cathode materials for Na-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yiming Sun, Jianguo Liao, Hongzhou Zhang, Dawei Song, Defa Wang, Lianqi Zhang
Summary: Single crystallization is an effective solution to the structural degradation of agglomerated poly-crystalline layered cathode materials. Conventional methods rely on calcination at high temperatures, but the instability of Ni3+ leads to structural instability at high temperatures, degrading the cathodes' electrochemical properties. The formation mechanism and synthesis method of single-crystal Ni-rich materials need to be re-explored systematically.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Physical
Su Wang, Qifang Sun, Qing Zhang, Chen Li, Chaoran Xu, Yue Ma, Xixi Shi, Hongzhou Zhang, Dawei Song, Lianqi Zhang
Summary: The researchers developed an ambient-temperature dual-layer solid polymer electrolyte with poly(propylene carbonate)/succinonitrile at the cathode and polyethylene oxide/Li7La3Zr2O12 at the anode. Molecular dynamics simulations and density functional theory calculations confirmed the formation of solvated sheath-like structures that facilitate rapid transport of Li ions through polymer segments. Experimental results validated the proposed mechanism.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Rongzheng Tian, Zhenyu Wang, Jianguo Liao, Hongzhou Zhang, Dawei Song, Lingyun Zhu, Lianqi Zhang
Summary: In this work, small-size single crystal NCM811 (S-SC) is synthesized to solve mechanical damage and contact failure issues in all-solid-state batteries. The interfacial stability is improved by a Li2O pre-lithiation strategy. The Li2O pre-lithiated S-SC cathode shows extraordinarily high-voltage stability in ASSLBs.
ADVANCED ENERGY MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Zhiyuan Pang, Hongzhou Zhang, Lu Wang, Dawei Song, Xixi Shi, Yue Ma, Linglong Kong, Lianqi Zhang
Summary: Lithium-sulfur (Li-S) batteries are considered one of the most promising future batteries due to their high theoretical energy density (2600 W center dot h center dot kg(-1)) and use of inexpensive active materials (elemental sulfur). Recent advancements in fundamental research and engineering, particularly in electrode, electrolyte, membrane, binder, and current collector, have significantly improved the performance of Li-S batteries from the laboratory level to practical application. However, safety concerns still need attention in the upcoming stage of application. This review focuses on the development of electrolytes for Li-S batteries from liquid to solid state, and highlights issues such as soluble lithium polysulfide migration, electrolyte ionic conductivity, electrolyte-electrode interface contact, and reaction kinetics. Furthermore, future perspectives on safe and high-performance Li-S batteries are also discussed.
FRONTIERS OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Physical
Haibo Wang, Feixiang Ding, Yuqi Wang, Zhen Han, Rongbin Dang, Hao Yu, Yang Yang, Zhao Chen, Yuqi Li, Fei Xie, Shiguang Zhang, Hongzhou Zhang, Dawei Song, Xiaohui Rong, Lianqi Zhang, Juping Xu, Wen Yin, Yaxiang Lu, Ruijuan Xiao, Dong Su, Liquan Chen, Yong-Sheng Hu
Summary: In this work, a strategy of achieving an in situ plastic-crystal Na3-3xAlxPO4 coating and bulk Al doping for an O3-NaNi0.4Fe0.2Mn0.4O2 cathode was proposed. Na3-3xAlxPO4 exhibited high ion transport performance due to its unique paddle-wheel mechanism. The in situ formed Na3-3xAlxPO4 and bulk Al-O bonds improved the surface and bulk structure stability, leading to enhanced electrochemical performance with a capacity retention rate of 70% after 500 cycles in a full cell.
ACS ENERGY LETTERS
(2023)
Review
Chemistry, Physical
Zhihui Xu, Xiaohu Wang, Zhenyu Wang, Xuelei Li, Jingshun Liu, Aruuhan Bayaguud, Lianqi Zhang
Summary: All-solid-state lithium batteries (ASSLBs) with sulfide solid electrolytes (SSEs) have gained attention for their high safety and energy density. Ni-rich layered oxide cathode materials show promise in ASSLBs due to their high voltage, reversible capacity, and low cost. However, their performances, especially long-life capacity, are insufficient for electric vehicles. This review summarizes the issues of physical connection, chemical/electrochemical reactions, and space-charge layer (SCL) of Ni-rich layered oxide cathodes in ASSLBs with SSEs, as well as the modification strategies to address these issues. The future development direction of ASSLBs using Ni-rich oxide cathodes and SSEs is also discussed briefly.
JOURNAL OF POWER SOURCES
(2023)
Article
Chemistry, Inorganic & Nuclear
Rongzheng Tian, Shan Yin, Hongzhou Zhang, Dawei Song, Yue Ma, Lianqi Zhang
Summary: By investigating the Al-doped LiNi0.8Mn0.2-xAlxO2 cathodes, it has been found that Al doping can effectively inhibit Li/Ni disorder and improve the structural and thermal stability. The optimal doping amount is 5%, and the LiNi0.8Mn0.15Al0.05O2 cathode shows an excellent capacity retention of 91.97% after 300 cycles at 3.0-4.3 V. This work provides an effective strategy for the development of Ni-rich Co-free NM cathodes.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Multidisciplinary
Yiming Sun, Senhao Li, Kai Yang, Yue Ma, Hongzhou Zhang, Dawei Song, Yi Wang, Chunliang Li, Defa Wang, Lianqi Zhang
Summary: Layered cathode materials have different electrochemical properties when paired with sulfide solid electrolytes compared to liquid electrolytes. The increase in Ni/Co proportion aggravates chemical and electrochemical adverse reactions, while the introduction of Co enhances interfacial stability. This research provides insights into cathode/electrolyte interface deterioration and guides the design of appropriate cathodes for all-solid-state lithium batteries.
NEW JOURNAL OF CHEMISTRY
(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)
