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, Physical
Ziying Wen, Cuiping Gu, Yanjun Yin, Maryam Bayati, Terence Xiaoteng Liu, Jiarui Huang
Summary: N-doped SnO2/C NTs, prepared through sacrificial template method, exhibit high reversible capacity, stability, and rate performance as anodes for LIBs. The N-doped carbon coating improves conductivity, while the whole nanotube structure provides ample surface and pores while constraining volume expansion.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Dongdong Liu, Zengyan Wei, Liming Liu, Hong Pan, Xiaoming Duan, Long Xia, Bo Zhong, Huatao Wang, Dechang Jia, Yu Zhou, Xiaoxiao Huang
Summary: An effective strategy of anchoring ultrafine and high content SnO2 nanoparticles in ordered mesoporous carbon framework is proposed to improve the reversible capacity and sluggish reaction kinetics of SnO2-based anodes in lithium ion batteries. The ultrafine SnO2 and ordered mesoporous structure shorten diffusion distance of Li+ and enhance conversion reaction of SnO2, leading to high reversible capacity and excellent rate capabilities. The elaborately designed SnO2@OMC anodes exhibit stable capacity even after assessment of rate capability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Ceramics
Bin Xiao, Gang Wu, Tongde Wang, Zhengang Wei, Yanwei Sui, Baolong Shen, Jiqiu Qi, Fuxiang Wei, Qingkun Meng, Yaojian Ren, Xiaolan Xue, Junchao Zheng, Jing Mao, Kehua Dai, Qiong Yan
Summary: The bimetal oxide Sn0.918Sb0.109O2@graphene has a narrower band gap width, promoting lithium ion transport and improving electrochemical performance. The study confirms that TAO@G is a promising anode material for lithium-ion batteries.
CERAMICS INTERNATIONAL
(2022)
Article
Nanoscience & Nanotechnology
Hongyan Zhou, Mengjing Jin, Bojian Zhou, Jianguo Zhao, Weihua Han
Summary: The composite material of SnO2/MoO3 at a 1:1 ratio showed exceptional electrochemical performance after 300 cycles, attributed to its unique 3D porous structure. The addition of graphene improved electrical conductivity, resulting in better electrochemical performance of SnO2/MoO3@Graphene composite material.
Review
Engineering, Multidisciplinary
L. Syam Sundar, M. Amin Mir, M. Waqar Ashraf, Faramarz Djavanroodi
Summary: In recent years, there has been a significant increase in demand for high performance rechargeable lithium-ion batteries, leading to the exploration of graphene and graphene-based materials as high performance electro-conductance materials. Graphene, a 2-dimensional carbon-based material, possesses several desirable properties such as high Young's modulus, excellent electrical conductivity, remarkable intrinsic electron mobility, enhanced mechanical strength, enhanced photosensitive transmittance, catalytic activity, and chemical stability. Despite challenges such as high production cost and limited availability in large quantities, graphene has shown promising outcomes and innovations in the applied materials industry and academia. This review paper focuses on the recent developments in functionalization, controlled product materials, and the usage of graphene in rechargeable lithium-ion batteries.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Chemistry, Analytical
Ziying Wen, Zhiwen Rong, Yanjun Yin, Haibo Ren, Sang Woo Joo, Jiarui Huang
Summary: The NC@SnO2 HNS electrode, designed with nitrogen-doped carbon shell covered SnO2 hollow nanospheres, demonstrates high reversible capacity, long-term cycling performance, and superior rate performance due to its enhanced conductivity and superior structural design.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Monika Michalska, Dominika A. Buchberger, Jacek B. Jasinski, Arjun K. Thapa, Amrita Jain
Summary: The electrochemical performance of lithium manganese oxide composites with graphene oxide in Li-ion batteries was studied, showing that the composite with 5%wt. graphene oxide exhibited better capacity retention after cycling.
Article
Chemistry, Inorganic & Nuclear
Bing Wei, Shixin Yan, Daozeng Jia, Chunbin Feng, Jiyong Yin, Zhenting Wang
Summary: A facile micro-arc oxidation process combined with graphene as a conductive additive was developed to synthesize SnO2 for improved lithium-ion battery performance. The integration of the current collector and the active substance was achieved using a simplified method. The designed material exhibited excellent energy capacity of 482 mAh/g at a current density of 1.0 C after 200 cycles and a good rate performance of 746 mAh/g at a current density of 0.2 C. This work serves as a starting point for the preparation of other metal oxides using micro-arc oxidation for lithium storage applications.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
K. P. Lakshmi, R. Deivanayagam, M. M. Shaijumon
Summary: A composite of antimony oxide microstructures encapsulated in graphene aerogel, interconnected by a network of carbon nanotubes, shows excellent electrochemical performance as an anode for sodium and lithium ion batteries. The unique star-shaped Sb2O3 microstructures are synthesized through a facile hydrothermal method, exhibiting stable specific capacity over 100 cycles. The study investigates the reaction kinetics upon sodiation and attempts to probe the underlying electrochemical charge storage mechanism using ex-situ techniques.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Sunwook Kim, Sungmin Na, Joonchul Kim, Tae Hwan Jun, Myoung Hwan Oh, Kyoungmin Min, Kwangjin Park
Summary: This study focuses on finding a coating material to replace cobalt in order to address the issues of Ni-rich cathode materials. The Ni/Hf coated sample shows higher initial capacity, improved rate capability, higher Li-ion diffusion coefficient, reduced charge-transfer resistance, enhanced cycle retention, and the ability to suppress side reactions and large volume change compared to other coatings and the pristine sample.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Jasmin-Clara Buerger, Serin Lee, Jan Buettner, Sebastian Gutsch, Maximilian Kolhep, Anna Fischer, Frances M. M. Ross, Margit Zacharias
Summary: The SnO2/ZnO core/shell nanowires, as anode materials in LIBs, were studied using electrochemical analysis and electron microscopy to understand the relationship between structural changes and battery performance. The combination of SnO2 and ZnO showed higher storage capacities, but cycling caused significant structural changes and loss of mechanical integrity. This study provides insights into the stability limitations of SnO2/ZnO heterostructure LIB anodes and offers guidance for the design of next-generation anode materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Xinjin Gao, Zhenpeng Xiao, Lili Jiang, Chao Wang, Xinru Lin, Lizhi Sheng
Summary: A yolk-shell porous Fe3O4@C/ graphene nanosheet structure is designed to address the volume change and dissolution/aggregation issues of Fe3O4 anode materials. This structure not only provides space for volume change but also restricts overexpansion, resulting in improved capacity retention. Additionally, the porous Fe3O4 promotes ion transport, and the carbon shell enhances overall conductivity.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
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
JiongJian Gao, Kaidan Wu, Yefeng Feng, Xiaoqian Deng, Yukun Sun, Weiyi Xu, Miao He
Summary: SnO2/Fe2O3/graphene nanocomposite material prepared by ball milling exhibits excellent electrochemical performance and cycling stability.
Article
Materials Science, Multidisciplinary
Xue Liang Li, Shaozhuan Huang, Dong Yan, Jian Zhang, Daliang Fang, Yew Von Lim, Ye Wang, Tian Chen Li, Yifan Li, Lu Guo, Hui Ying Yang
Summary: In this study, a 3D lithiophilic rGO-Ag-S-CNT composite with interlayer-bridged structure was proposed to guide uniform and stable Li plating/stripping. The composite exhibited lower overpotential, higher Coulombic efficiency, and superior long cycling performance compared to other anode materials.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Yifan Li, Daliang Fang, Xue Liang Li, Dong Yan, Shibo Xi, Tian Chen Li, Congjian Lin, Shaozhuan Huang, Jianbei Qiu, Xuhui Xu, Hui Ying Yang
Summary: Inspired by single-atom catalysts, carbon-supported single atomic Co with asymmetric N, O-coordination is developed for Li metal battery, which enables uniform Li plating/stripping and promotes the deposition kinetics. The Co-N/O achieves high coulombic efficiency, long cycling life, and excellent rate performance in symmetrical cells. This study provides a comprehensive understanding of single atomic metals with asymmetric heteroatom coordination in the design of Li metal anode.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Xiangnan He, Jianxiang Cheng, Zhenqing Li, Haitao Ye, Xinfeng Wei, Honggeng Li, Rong Wang, Yuan-Fang Zhang, Hui Ying Yang, Chuanfei Guo, Qi Ge
Summary: Ionic conductive elastomers (ICEs) are emerging stretchable and ionic conductive materials with excellent thermal stability. We report a DLP-based multimaterial 3D printing technology that seamlessly integrates UV-ICE with nonconductive materials to create 3D forms of ionic flexible electronic devices with enhanced performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yingmeng Zhang, Shengyang Jiang, Yongliang Li, Xiangzhong Ren, Peixin Zhang, Lingna Sun, Hui Ying Yang
Summary: In this study, vanadium nitride embedded nitrogen-doped carbon nanofiber (VN/N-CNFs) composites with 3D self-supported skeletons and hierarchical structures were developed to address the issues of inadequate cycle stability and energy density for aqueous zinc-ion batteries (ZIBs). The introduction of vanadium-based metal organic frameworks (V-MOFs) contributed to the in situ hierarchical growth of whisker-like secondary structures and homogeneous distribution of 0D active VN nanograins, providing protection and conductivity to the battery. Additionally, the flexible and free-standing 3D electrospun VN/N-CNFs skeletons exhibited an ultra-long cycle lifespan and a super-high rate capability, showcasing their potential for designing superior ZIBs.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Jingjing Yao, Yi Deng, Dong-Sheng Li, Haipu Li, Hui Ying Yang
Summary: Antibiotics pose a growing environmental challenge due to their mutagenic and persistent effects. In this study, y-Fe2O3 and ferrites nanocomposites co-modified carbon nanotubes were synthesized for the removal of ciprofloxacin. The adsorption capacities of ciprofloxacin on y-Fe2O3/MFe2O4/CNTs were determined to be 44.54 (Co), 41.13 (Cu), and 41.53 (Mn) mg/g. The adsorption mechanisms were explored and the role of magnetic substances in the adsorption process was revealed. This research provides insights for the development of similar adsorbents for environmental applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Qixiang Deng, Xinlong Liu, Zhiyong Li, Haosen Fan, Yufei Zhang, Hui Ying Yang
Summary: Designing hybrid metal sulfide-based anode materials is an effective method to enhance the performance of sodium-ion batteries (SIBs). However, the capacity of sulfide-based anodes decreases significantly due to volume expansion during charge/discharge processes. In this study, concaved NiS2@CoS2 nano-cubes (NCSC) were successfully prepared through chemical etching of Ni-Co coordination polymers (NiCoCP) precursor. The obtained NCSC anode materials exhibited a high specific sodium storage capacity of 848 mAh g-1 at 0.1 A g-1 and a stable cyclability of 572 mAh g-1 at 5 A g-1 after 830 cycles. This unique etching strategy provides a novel approach for the design and fabrication of high-performance anode materials for SIBs.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Wei Ying Lieu, Congjian Lin, Xue Liang Li, Shunqiong Jiang, Yuanjian Li, Hui Ying Yang, Zhi Wei Seh
Summary: A lithium-sulfur battery cathode was developed using sulfur spheres templated with MXene nanosheets decorated with CoSe2 nanoparticles. The presence of smaller nanoparticles was found to improve Li+ ion transport and enhance electrochemical performances.
Review
Chemistry, Physical
Dong Yan, Hui Ying Yang, Ying Bai
Summary: Considering the limited energy density of current lithium metal batteries (LMBs) due to low capacity of traditional intercalation-type cathodes, alternative high-energy cathodes such as conversion-type metal fluoride/sulfide/oxide cathodes have gained attention. However, their low conductivities, volume changes, sluggish reaction kinetics, and side reactions lead to capacity fading and poor rate capability of LMBs. Recent research has focused on optimizing strategies, including morphology regulation and surface coating, to improve the electrochemical performance of conversion-type cathodes. The promising future of conversion-type cathodes in next-generation LMBs with high energy density is emphasized.
Article
Chemistry, Physical
Yuanjian Li, Wei Ying Lieu, Tanmay Ghosh, Lin Fu, Xiang Feng, Andrew Jun Yao Wong, Anupma Thakur, Brian C. Wyatt, Babak Anasori, Qianfan Zhang, Hui Ying Yang, Zhi Wei Seh
Summary: Double-transition-metal MXene films are developed as current collectors to enhance the rechargeability of magnesium metal batteries, addressing the challenges of volume changes and side reactions. These films have excellent electro-chemo-mechanical properties, leading to efficient electron/ions transfer, electrolyte suppression, and stable electrode structure.
Review
Electrochemistry
Mingming Han, Tian Chen Li, Dong-Sheng Li, Hui Ying Yang
Summary: This review discusses the challenges faced by aqueous electrolyte in zinc batteries, such as low voltage window, various irreversible reactions, and low energy density. It also summarizes innovative electrolyte modulation strategies, including hybrid/concentrated solution, gel polymer electrolyte (hydrogel electrolyte), eutectic mixture, and electrolyte additives, for improved zinc battery performance.
BATTERIES & SUPERCAPS
(2023)
Article
Chemistry, Physical
Hui Li, Haodong Ji, Jiajia Liu, Wen Liu, Fan Li, Zhurui Shen
Summary: Interfacial modulation of catalysts can enhance catalytic activity, and this study focuses on revealing the mechanism of reactive species production at different interfaces. Zr-S-4 active sites were successfully constructed on ZnIn2S4 nanosheets, effectively modulating the reaction interface and band structure, which significantly boosted the photocatalytic activity. The modified catalyst exhibited a 3-fold increase in the kinetic rate constant for photocatalytic degradation compared with the pristine ZnIn2S4, and the degradation pathway of TC was altered due to the regulation of reactive species.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Shunqiong Jiang, Wei Ying Lieu, Xue Liang Li, Daliang Fang, Siew Lang Teo, Yifan Li, Zhi Wei Seh, Bingbing Tian, Yumeng Shi, Hui Ying Yang
Summary: In this study, an organic-inorganic hybrid protective layer was prepared on the Li metal anode surface, providing a flexible and strongly adhering protective layer. The protective layer exhibited excellent lithiophilicity and mechanical stability, enabling high-performance Li metal anodes and ensuring the stability and reversible capacity of the battery.
MATERIALS TODAY ENERGY
(2023)
Article
Engineering, Chemical
Liping Yang, Yixiang Li, Lu Guo, Pin Ma, Zhi Yi Leong, Jing Wang, Hui Ying Yang
Summary: This study aims to extract high-quality water for potable and industrial use from unconventional water sources using innovative methods. An innovative adsorbent was used to reduce boron and chloride levels in brackish water, and a capacitive deionization system was employed for chloride ion removal. The results demonstrate that this approach can meet water quality standards while significantly reducing chemical costs.
Article
Chemistry, Multidisciplinary
Denghui Pan, Haoyuan Yang, Yueyue Liu, Hui Wang, Tingting Xu, Dezhi Kong, Jingjing Yao, Yumeng Shi, Xinjian Li, Hui Ying Yang, Ye Wang
Summary: In this study, a three-dimensional structure of Ti3C2Tx/rGO was constructed by 3D printing technique as the Na metal anode host electrode, which significantly enhanced the cycling stability of Na metal and effectively inhibited dendrite formation. The experimental results demonstrated the high efficiency and long lifespan of the designed electrode.
Review
Chemistry, Multidisciplinary
M. Shahnawaz Khan, Zhi Yi Leong, Dong-Sheng Li, Jianbei Qiu, Xuhui Xu, Hui Ying Yang
Summary: Capacitive deionization (CDI) is an environmentally friendly method for ion removal, but its efficiency is still lower than established filtration methods. Metal-organic frameworks (MOFs) have potential applications, but most derived materials lose their robust porosity after pyrolysis. This review provides a starting point for researchers interested in developing MOF-derived materials for CDI.
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)
