Article
Chemistry, Physical
Qian Shi, Kaiyun Chen, Zhonghai Yu, Minxia Fang, Zhiyong Dai, Jingxiao Wang, Kun Cao, Fanghua Tian, Yin Zhang, Sen Yang, Xuan Zhou
Summary: In this work, N and S co-doped carbon nanofibers coated with cobalt sulfide nanoparticles were synthesized and used as anode materials for Li+/Na+ storage. The doped N and S improved the conductivity of the carbon nanofibers and facilitated the diffusion of Li+/Na+. The synthesized composite exhibited excellent reversible capacity and could enhance the adsorption of Li+/Na+.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Sheng Liang, Jie Chen, Xuehua He, Lingli Liu, Ningning Zhou, Lei Hu, Lili Wang, Dewei Liang, Tingting Yu, Changan Tian, Chu Liang
Summary: The use of nitrogen-doped porous carbon microspheres as a host for confining lithium sulfide showed promising results in improving the cycling stability and rate capability of lithium-sulfur batteries. The composite material exhibited high initial discharge capacity, good rate capability, and long-term lifespan, attributed to the strong fixation of lithium polysulfides and enhanced electron and charge conduction in the cathode. This approach provides a new perspective for the application of lithium-sulfur batteries.
Article
Chemistry, Physical
Yanjuan Li, Wei He, Xiaoyu Liu, Yiran Li, Zhanzhan Wang, Xing Ming, Lihuai Liu, Chunmei Tan, Xiao Yan
Summary: This study reports a simple and scalable synthesis method for SnS/NC/SnS composite material, which shows a larger interlayer spacing and rapid ion transport by decorating SnS nanosheets on N-doped carbon material. The material exhibits significant potential and cycle stability in both sodium ion batteries and lithium ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Inorganic & Nuclear
Haoshan Xu, Shuhong Huang, Yang Yang, Jintao Chen, Lingxun Liang, Jun Zhang, Ling Li, Xiaohui Zhao, Wenming Zhang
Summary: In this study, a freestanding and flexible 3D nanocomposite FeCoS2@N-HCNF is synthesized through coaxial electrospinning, high-temperature calcination, and a facile solvothermal process. As a binder-free anode composite for potassium-ion batteries, FeCoS2@N-HCNF exhibits high specific discharge capacity and superior cycling stability. The unique 3D structure and polyhedral spherical FeCoS2 are responsible for the impressive electrochemical performance.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Analytical
Jingyu Chen, Zehao Zhang, Haibo Li
Summary: In this study, 3D cobalt sulfide/carbon polyhedral hybrids were prepared using ZIF-67 as a template. The results showed that CoS2 played a significant role in the lithium ion battery performance of CoSx/CP. The optimized CoSx/CP exhibited various electrochemical reactions and the lowest charge transfer resistance.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Materials Science, Ceramics
Junpeng Wang, Wenqing Fu, Yuanyuan Ren, Wenjie Zeng, Liang Chen
Summary: In this study, a composite material combining heterostructured CoS/Co9S8 grains with N, S co-doped carbon was synthesized to address the limitations of low conductivity and volume changes in metal sulfides for lithium-ion battery anodes. The synergistic effects of the two components led to satisfactory cycling performance, with CSCS-C-800 demonstrating remarkable capacity retention and low capacity fading over 400 cycles. These outcomes pave the way for advanced metal sulfide-based materials in electrochemical charge storage applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Nesrin Bugday, Mehmet Nurullah Ates, Ozgur Duygulu, Wentao Deng, Xiaobo Ji, Serdar Altin, Sedat Yasar
Summary: Composite anode materials Fe/Co/S@NPC-T were synthesized by sulfurization and pyrolysis of Fe/Co-based ZIF-12. The materials exhibited good structural properties and rechargeable performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Fengjun Zhao, Linyu Yang, Hang Yang, Zhen Wang, Shurong Xu, Qingxuan Sui, Jun Liu
Summary: The coupling strategy of metal sulfides and metal-organic frameworks derived carbon materials has shown promising results for enhancing lithium storage performance. In this study, a SnS decorated ZnS/3D porous carbon composite was successfully prepared and exhibited improved electrochemical properties for lithium storage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Albert Claude Jean-Pierre Daubry, Zhuijun Xu, Ming Yang, Ya-Jun Cheng, Yonggao Xia, Xile Hu
Summary: This paper introduces a new concept to enhance the rate capability of lithium-ion batteries by incorporating a small amount of metal species into the electron conductive agent. Experimental results show that the Si/C composite anode with oxidized Ketjen black (KJB) incorporated with cobalt (Co-ox-KJB) exhibits improved capabilities at high current densities. The improved electrochemical performance is attributed to enhanced electron conductivity, improved affinity towards the electrolyte, and an enhanced desolvation process.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Physical
Shuling Liu, Kang Feng, Wenxuan Xu, Xiaoqiang Shi, Zheng Xu, Chao Wang
Summary: Composites of cobalt selenide nanoparticles, carbon nanotubes, and reduced graphene oxide have been successfully prepared and used as electrode materials for lithium and sodium ion batteries. The composite exhibits high reversible specific capacity and improved ion diffusion and charge transfer resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shikai Xu, Zhiqiang Li, Kainian Chu, Ge Yao, Yang Xu, Ping Niu, Yang Yang, Qianwang Chen, Fangcai Zheng
Summary: In this study, NiS nanosheets attached to nitrogen-doped carbon matrixes were prepared for sodium/potassium ion batteries, demonstrating excellent electrochemical performance and cycling stability. The composite material showed promising application potential for energy-storage devices.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Amei Cheng, Yini Hu, Ming Yue, Junxiao Fu, Huimin Wu, Shiquan Wang, Jianwen Liu
Summary: In this study, a N, C-co-doped nano-sized ZnS-NC@C composite was designed as anode materials for LIBs and SIBs. It exhibited high reversible capacity and cycling stability, showing promise for enhancing the performance of transition metal sulfides in potential battery applications.
JOURNAL OF PHYSICS-MATERIALS
(2021)
Article
Chemistry, Physical
Yanli Tan, Chunxiao Yang, Weiwei Qian, Xin Sui, Chao Teng, Qun Li, Zhou Lu
Summary: Carbon-coated porous Co3O4 polyhedrons with (220) facets were successfully fabricated through a hydrothermal method and subsequent calcination process, exhibiting discharge capacities of 1463 and 596 mA h g(-1) at 100 and 5000 mA g(-1) respectively. After 150 charge-discharge cycles, the anode maintained a reversible capacity of 840 mA h g(-1) at 1000 mA g(-1).
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Li Wang, Fangfang Deng, Dandan Yu, Dongfei Sun, Xiaozhong Zhou, Guofu Ma, Ziqiang Lei
Summary: Designing cobalt sulfide nanoparticles embedded in porous carbon nanosheets through a self-confined synthesis strategy results in excellent electrochemical performance, demonstrating promising application prospects in lithium ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Meng Zhu, Yafei Huang, Guorong Chen, Mi Lu, Alena A. Nevar, Natalia Dudko, Liyi Shi, Lei Huang, Nikolai Tarasenko, Dengsong Zhang
Summary: This study proposes a new method to construct a high-performance cathode for fast-charging lithium-ion batteries, by utilizing a fully supported lattice network and a self-passivating surface. By one-step solid-phase sintering of Sn and S co-doped LCO, a fully supported lattice network is formed, reducing the energy barrier of Li+ transport and promoting Li+ solid-state diffusion. In addition, the self-passivating surface formed on LCO-Sn0.6 significantly enhances the adsorption energy of EC and LiPF6, forming effective CEI membranes and enabling high capacity and SOC after extremely fast charging.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Da Xu, Qilin Cheng, Petr Saha, Yanjie Hu, Ling Chen, Hao Jiang, Chunzhong Li
Summary: In this study, Se/N co-doped hard carbon nanotubes were successfully synthesized, showing high reversible storage capacity and electrochemical reversibility for potassium-ion batteries. They exhibited excellent electrochemical performance in terms of both weight and area, making them promising for application in potassium-ion batteries.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaotong Fan, Kai Huang, Long Chen, Haipeng You, Menglei Yao, Hao Jiang, Ling Zhang, Cheng Lian, Xiangwen Gao, Chunzhong Li
Summary: This research reports an innovative supercapacitor that increases energy density by iteratively inhaling chlorine gas in porous carbon materials. Both experimental and theoretical results indicate that porous carbon with a pore size of around 3 nm exhibits the best performance. The supercapacitor adopts multi-wall carbon nanotube as the cathode and NaTi2(PO4)(3) as the anode, achieving high specific energy and negligible capacity loss over 30,000 cycles. By replacing the anode, the energy density can be further improved, and the respiratory supercapacitor demonstrates an extremely high-power density due to the extraordinary reaction kinetics of chlorine gas.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Hongbo Jin, Jiahao Zhang, Li Qin, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: In this study, a dual modification strategy of C-coating and Nb-doping was proposed and applied to improve LiFe0.5Mn0.5PO4 cathode materials. The C-coating layer formed a high-speed conductive network and provided protection to the electrolytes. The Nb-O coordination accelerated ion diffusion and electron transport, while suppressing the Jahn-Teller effect of Mn3+. The dual modifications resulted in LiFe0.5Mn0.5PO4 cathode materials with enhanced lithium-storage capacities and impressive cycling performance.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Jiechao Jiang, Zhengju Zhu, Ying He, Bismark Sarkodie, Wenyi Wang, Hao Jiang, Yanjie Hu, Chunzhong Li
Summary: Catalytic combustion is an important method to reduce toluene pollution, and improving the performance of catalysts is crucial. Oxygen vacancies play a key role in enhancing the catalytic combustion performance. By using flame spray pyrolysis (FSP), two different oxygen vacancy structures were synthesized and their effects on toluene catalytic combustion performance were evaluated. The closely contacted oxygen vacancies (cVo) exhibited enhanced oxygen activation capacity and significantly lower reaction temperatures compared to the separated oxygen vacancy (s-Vo) sample. The FSP synthesis strategy also provided excellent water resistance and high-temperature stability to the catalyst.
Article
Chemistry, Multidisciplinary
Jiahao Zhang, Jingyu Wang, Haijiao Zhang, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: Developing high-performance electrocatalysts is crucial for the future hydrogen economy. A hierarchically heterostructured Ni(OH)2/Fe-Ni2P electrocatalyst was developed to enhance the hydrogen evolution reaction during alkaline water electrolysis. This electrocatalyst showed improved catalytic activity, electrochemical stability, and efficient synergistic catalysis, making it a promising candidate for alkaline water splitting.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Chemical
Hu Wang, Ling Zhang, Chunzhong Li
Summary: In this study, lightweight and flexible electromagnetic shielding composite films with excellent Joule heating performance and good mechanical properties were prepared. The composite films achieved a high electromagnetic shielding effectiveness of 40.52 dB at 8.2-12.4 GHz (X-band) with a low thickness of 22 μm. They also exhibited excellent electrical heating performance with a surface saturation temperature as high as 127.6 degrees C under an applied voltage of 7 V. Therefore, the ANF/APP/PRGO composite films have practical application value in the fields of electromagnetic shielding and electric heating.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Yuan Zhao, Jipeng Xu, Kai Huang, Wangxin Ge, Zhen Liu, Honglai Liu, Cheng Lian, Hongliang Jiang, Chunzhong Li
Summary: Electrochemical alkynol semi-hydrogenation using water as the hydrogen source instead of H2 is a sustainable and environmentally friendly method for producing high-value alkenols. This study proposes the use of boron-doped Pd catalysts (PdB) and surfactant-modified interface to increase both alkenol selectivity and alkynol conversion. By assembling quaternary ammonium cationic surfactants at the electrode-electrolyte interface, in response to applied bias potential, an interfacial microenvironment is created which promotes alkynol semi-hydrogenation and inhibits hydrogen evolution reaction without decreasing alkenol selectivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Tianyu Liu, Yaru Zheng, Caixia Hao, Wenqing Hong, Fengxuan Wang, Hao Jang, Yanjie Hu, Chunzhong Li
Summary: Enhanced output was achieved by designing oriented glass fibers within nano-porous SiO2 film, enabling effective harvesting of renewable energy through the water evaporation process. The ordered glass fibers improved power generation performance by promoting water flow and carrier movement, resulting in an induced open-circuit voltage of 1.4 V and an induced short-circuit current of 400 nA. This provides a performance improvement strategy for evaporation-induced generators. The generated voltage driven by evaporation was found to be related to humidity difference and water flow. The availability of raw materials and the simplicity of the fabrication process also enable easy scalability of the generators.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Multidisciplinary
Zhihong Wang, Wu Wei, Qiang Han, Huawei Zhu, Ling Chen, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: By regulating the precipitation rates of cations and the distributions of flow field, an elongated primary particles radially aligned Ni-rich cathode was synthesized using a microstructure engineering strategy. The high aspect ratio and favorable atomic arrangement of primary particles enable isotropic strain relaxation, greatly suppressing microcrack formation and propagation, and facilitating Li-ion diffusion. The modified cathode shows superior high-rate performance, long-cycle life, and thermal stability compared with conventional counterparts.
Article
Engineering, Chemical
Lei Dong, Wangxin Ge, Yu Fan, Wenfei Zhang, Hongliang Jiang, Yongqing Zhao, Chunzhong Li
Summary: Cu-based catalysts combined with CTAB as electrolyte additives were used to improve the formate selectivity and partial current density of CO2RR. The hydrophobic interface microenvironment was created by CTAB and disrupted the interaction between interfacial water and surface-adsorbed CO. This study provides a new perspective on controlling the microenvironment to enhance electrosynthesis performance.
Article
Chemistry, Multidisciplinary
Xiaoli Jiang, Lei Tang, Lei Dong, Xuedi Sheng, Wenfei Zhang, Zhen Liu, Jianhua Shen, Hongliang Jiang, Chunzhong Li
Summary: In this study, density functional theory (DFT) simulations were used to investigate the site isolation strategy in electrocatalytic selective hydrogenation of acetylene. The results showed that isolated Cu metal sites have higher energy barriers on overhydrogenation and C-C coupling reactions. Based on this, Cu single-atom catalysts highly dispersed on nitrogen-doped carbon matrix were developed and demonstrated high ethylene selectivity under high concentrations of acetylene. The superior performance was attributed to the weak adsorption of ethylene intermediates and highly energy barriers on C-C coupling at isolated sites, as confirmed by both DFT calculations and experimental results. This study provides a comprehensive understanding of the isolated sites inhibiting the side reactions in electrocatalytic acetylene semihydrogenation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Zhihong Wang, Wu Wei, Qiang Han, Huawei Zhu, Ling Chen, Yanjie Hu, Hao Jiang, Chunzhong Li
Summary: A microstructure engineering strategy is used to synthesize elongated primary particles radially aligned Ni-rich cathodes through regulation of precipitation rates and flow field distributions. The resulting cathode exhibits enlarged lattice distance and highly exposed (003) plane, showing significant advantages such as high-rate, long-cycle life, and thermal stability. After modification, an exceptionally long life is achieved with a capacity retention of 90.1% at 1C and 84.3% at 5C after 1500 cycles within 3.0-4.3 V in a 1.5-Ah pouch cell. This work offers a universal strategy to enhance the durability of Ni-rich cathodes by achieving isotropic strain distribution.
Article
Chemistry, Physical
He Zhao, Ling Zhang, Tianbo Deng, Chunzhong Li
Summary: Researchers have developed a multifunctional wearable electrochemical biosensor based on a patterned Janus fabric for continuous analysis of glucose in sweat. The biosensor achieves high sensitivity and long-term stability, and a wearable glucose intelligent early warning system is developed based on this biosensor for real-time monitoring and emergency feedback.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Shijia Li, Chuqian Xiao, Rongzhen Chen, Mengyi Wang, Yuting Ma, Kaiwen Luo, Muyao Shen, Yihua Zhu, Yuhang Li, Chunzhong Li
Summary: In this study, Cu-dispersed oxide octahedral molecular sieve (Cu(x)-OMS-1) was used as a catalyst for electrochemical nitrate reduction reaction (NITRR). The introduction of copper optimized the adsorption capabilities of the intermediates in NITRR and inhibited competitive hydrogen evolution reaction (HER) at high current density. The study revealed that copper effectively promoted nitrate protonation during NITRR, resulting in a high current density and Faraday efficiency for nitrate reduction to ammonia.
Article
Chemistry, Multidisciplinary
Kaiyue Zhang, Chuqian Xiao, Yuhang Li, Chunzhong Li
Summary: Electrochemical biomass valorization using a Prussian blue analogue catalyst shows promise in generating value-added chemicals. The NiFe-PBA/NF catalyst exhibits excellent performance in oxidizing various substrates, achieving almost 94.1% FE for formic acid. This work has developed a promising class of catalysts for biomass valorization.
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)
