Article
Chemistry, Physical
Lei Wang, Fei Huang, Guoyin Zhu, Zhihui Dai
Summary: A one-step solid-state synthesis method was used to prepare orthogonal Nb2O5 nanocrystals/graphene composites as high-performance anode materials in lithium-ion batteries. The Nb2O5/G material showed excellent electrochemical performance due to its nanoscale crystalline structure and highly conductive graphene substrate. A reversible structural phase transition between orthogonal Nb2O5 and tetragonal Li1-xNbO2 was verified, and the Nb2O5/G||graphite dual-ion batteries exhibited good cyclic performance and rate capability.
Article
Chemistry, Physical
Guorui Yang, Ziyi Zhou, Xiaofeng Liu, Yue Zhang, Silan Wang, Wei Yan, Shujiang Ding
Summary: The research indicates that hollow bowl-shaped porous carbon materials modified with graphene can act as high-performance anode materials for sodium-ion batteries, exhibiting high reversible capacity, excellent rate capability, and cycling stability. These materials possess good electrical conductivity and large surface area, which improve sodium ion adsorption and diffusion, leading to superior capacity and rate performance in sodium-ion batteries.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Afifa Sadaqat, Ghulam Ali, Zeeshan Ali, Faiza Jan Iftikhar, Mahmood ul Hasan
Summary: The synthesis of bimetallic sulfides using the hydrothermal method for battery electrodes, combined with conductive matrices such as reduced graphene oxide or carbon nanotubes, significantly improves ion storage properties, cycle life, and charge transfer in the electrodes. The nanocomposites exhibit enhanced electronic conductivity, cushioned volume expansion, and fast charge transfer due to the presence of dual metal-sulfide ions and conductive matrices.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Afifa Sadaqat, Ghulam Ali, Mahmood ul Hassan, Faiza Jan Iftikhar, Saleem Abbas
Summary: To enhance the electrochemical kinetics of sodium-ion batteries, the design of nanocomposite materials and the understanding of the synergistic effect between constituents are crucial. In this study, a Ni3S4/SnS heteroarchitecture integrated with reduced graphene oxide (NTS-rGO) and carbon nanotubes (NTS-CNTs) was fabricated. NTS-rGO and NTS-CNTs exhibited good cycling stability and charge-discharge performance, indicating a significant synergistic effect. The diffusion and storage rate of sodium ions in the NTS-CNTs anode were faster than in pure NTS and NTS-rGO, demonstrating higher energy storage performance.
ACS APPLIED NANO MATERIALS
(2023)
Review
Chemistry, Physical
Samrat Sarkar, Swagata Roy, Yufeng Zhao, Jiujun Zhang
Summary: This paper reviews the recent progress in semimetallic pnictogens as alloying anodes and their compounds mainly as conversion-alloying anodes, presenting various debatable sodiation mechanisms and proposing research directions to address existing challenges and perspectives.
Article
Chemistry, Physical
Lixin Li, Shuqing Liao, Guangsheng Dong, Kai Jiang, Yang Liu, Chunhong Zhang, Jun Yan, Ke Ye, Jiaxin Yao, Guiling Wang, Kai Zhu, Dianxue Cao
Summary: By synthesizing V2O3/C nanocomposite, this study improves the performance of sodium-ion batteries, achieving excellent cycle performance and high rate capability. The Na-ion storage mechanism is mainly controlled by capacitance behavior, playing a crucial role in enhancing rate capability and cycle performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Wenna Li, Nengshuang Gao, Hechen Li, Ruicong Sun, Qingquan Liu, Bin Huang, Quanqi Chen
Summary: To enhance potassium storage performance of graphene, electroactive bismuth nanoparticles were introduced into the porous graphene. The resulting Bi@Bi2O3/graphene composites exhibit better electrochemical performance than graphene due to the special microstructure and synergistic effect of nano-bismuth particles and graphene.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Syam Kandula, Beom Sik Youn, Jinhan Cho, Hyung-Kyu Lim, Jeong Gon Son
Summary: Developing effective anode materials for sodium-ion batteries remains challenging. In this study, a method to synthesize N-doped carbon-coated FeS2 nanorattles was successfully developed, enabling the formation of nanorattle structures and N/S dual-element doping into the G/SWCNT network. The resulting sample exhibited remarkable electrochemical performance as an anode for SIBs.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Analytical
Sakshee Chandel, Zulki Fli, Jay Singh, Jaekook Kim, Alok Kumar Rai
Summary: In this study, a nanocomposite of sodium titanate integrated with reduced graphene oxide (Na2Ti6O13/rGO) was fabricated through a solvothermal method and used as an anode material for sodium-ion batteries. The rGO nanosheets act as electrically conductive paths and facilitate the intercalation/de-intercalation of sodium ions, leading to improved electrochemical performances.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Electrochemistry
Shengyang Huang, Xue Qin, Chanrong Lei, Xinyu Miao, Tianyu Wei
Summary: The novel rGO-coated Si@SiOx@beta-Bi2O3/Bi composite exhibits high specific capacity and cycling stability, mainly achieved through the structural integrity guarantee of Si-core by Bi2O3 shell and synergistic action with Bi nanodots to expedite Li+/e(-) transport kinetics.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Physical
Renpin Liu, Fenqiang Luo, Lingxing Zeng, Junbin Liu, Lihong Xu, Xiaotong He, Qinxin Xu, Baoquan Huang, Qingrong Qian, Mingdeng Wei, Qinghua Chen
Summary: The study introduces a dual carbon accommodated structure for germanium nanoparticles, demonstrating improved performance and cycling stability in sodium-ion and potassium-ion batteries. The novel composite material shows potential as an alternative anode for ion storage applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Jing Ren, Guoqiang Ling, Hao Guo, Fa Zhang, Wenhua Tian, Peng Bai, Jianqiang Han, Rui-Peng Ren, Yong-Kang Lv
Summary: Sodium-ion batteries with copper(I) sulfide anodes have gained attention for their high capacity and safety. In this study, Cu2S/CNT anodes were prepared, and the highly conductive CNTs acted as catalysts to promote the reversible reaction kinetics of Cu2S. The Cu2S/CNT anodes exhibited efficient and reversible conversion compared to pure Cu2S anodes, due to the superior electron conductivity and high surface area of CNTs, as well as their inhibition of sodium polysulfide dissolution. This research contributes to the design of conversion-type materials with reversible mechanisms.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Nanoscience & Nanotechnology
Gangadhar Jella, Dillip K. K. Panda, Nawraj Sapkota, Michelle Greenough, Santanu P. P. Datta, Apparao M. M. Rao, Ravindran Sujith, Rajendra K. K. Bordia
Summary: Carbon-rich SiOC-I and silicon-rich SiOC-II were synthesized and their elemental and structural characteristics were evaluated. The composite anode (SiOC-II/GNP) achieved high specific capacity (744 mAh/g) and excellent cycling stability. The enhanced electrochemical performance was attributed to better electronic conductivity, lower charge-transfer resistance, and short ion diffusion length.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Shuoqing Zhao, Ziqi Guo, Jian Yang, Chengyin Wang, Bing Sun, Guoxiu Wang
Summary: Using nanoengineering strategies to enhance the electrochemical performance and structural stability of carbon-based anode materials in sodium-ion batteries shows promising potential. Further exploration of improvement methods is necessary to increase the competitiveness of sodium-ion batteries.
Article
Chemistry, Physical
Lixuan Zhang, Fan Peng, Man Zhang, Dan Li, Qichang Pan, Guanhua Yang, Fenghua Zheng, Youguo Huang, Hongqiang Wang, Qingyu Li
Summary: In this study, a heterostructured binary sulfide nanoparticles coated with N-doped carbon and further wrapped with graphene was synthesized to overcome the volume variation and inferior electrical conductivity of SnS2, making it a promising anode material for both lithium-ion batteries and sodium-ion batteries.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Qian Yao, Yansong Zhu, Cheng Zheng, Nana Wang, Dongdong Wang, Fang Tian, Zhongchao Bai, Jian Yang, Yitai Qian, Shixue Dou
Summary: By molecular engineering of the polymer binders and cross-linking treatment, the mechanical properties and electrochemical stability of sodium-ion batteries can be improved, resulting in extended cycle life and enhanced Coulombic efficiency.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Applied
Chunting Wang, Ningyan Cheng, Zhongchao Bai, Qinfen Gu, Feier Niu, Xun Xu, Jialin Zhang, Nana Wang, Binghui Ge, Jian Yang, Yitai Qian, Shixue Dou
Summary: This research presents a vapor-phase-etching hard-template method for the direct fabrication of tubes on various thermally stable oxide and sulfide materials. The method simplifies the preparation steps and avoids complicated post-processing procedures. The dynamic formation process of TiO2-x tubes was observed using in-situ heating transmission electron microscopy (TEM), and the TiO2-x tube showed excellent performance as an anode material for sodium ion batteries.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Applied
Xiaoxiao Hou, Yansong Zhu, Qian Yao, Jinmei Song, Chunsheng Wang, Yanli Zhou, Suyuan Zeng, Jian Yang, Yitai Qian
Summary: Dimer-like Sn-Bi@C nanostructures with a well-defined phase boundary between Sn and Bi have been prepared for the first time. The phase boundary provides additional and fast transportation for Na+ and mitigates the structure stress/strain upon cycling. Therefore, Sn-Bi@C exhibits high capacity, ultra-long cyclic life, and excellent rate performance for sodium storage, surpassing other materials.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Applied
Xinxin Song, Chenggang Wang, Dongdong Wang, Huili Peng, Cheng Wang, Chunsheng Wang, Weiliu Fan, Jian Yang, Yitai Qian
Summary: Cu-based cathodes in aqueous batteries have potential advantages but are hindered by serious side reactions caused by the spontaneous formation of Cu2O. In this study, Na2EDTA is introduced to reshape the solvation structure of Cu2+ and modify the electrode/electrolyte interface, reducing the redox potential of Cu2+/Cu2O and inhibiting Cu2O formation. The change in solvation structure also promotes high local concentration and uniform deposition. These findings provide insights for the application of rechargeable Cu-based batteries.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Jingjing Dong, Huili Peng, Jing Wang, Chenggang Wang, Dongdong Wang, Nana Wang, Weiliu Fan, Xuchuan Jiang, Jian Yang, Yitai Qian
Summary: In order to address the issues of severe electrolyte corrosion and dendrite growth in aqueous batteries, the electrolyte/Zn interface needs to be engineered. A new method of coating a dense and robust layer of polysilane functionalized by -NH2 on Zn has been developed. This layer provides alkalinity and interaction with Zn2+, enhancing hydrolysis and regulating Zn2+ flux. The results show superior mechanical property, suppressed side reactions, and uniform plating/stripping, leading to excellent electrochemical performance in both symmetrical and asymmetrical cells, even under high loading of MnO2 and limited electrolyte conditions.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Chunting Wang, Qian Yao, Mingyue Wang, Cheng Zheng, Nana Wang, Zhongchao Bai, Jian Yang, Shixue Dou, Huakun Liu
Summary: CNT/S-TiO2 is a promising anode material for sodium-ion batteries, with high safety and good stability. The incorporation of SWCNT and sulfur dopants improves conductivity and ion transport dynamics, resulting in rapid charge delivery and high specific capacity. CNT/S-TiO2 demonstrates excellent rate performance and long cycling stability, surpassing actual application requirements.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yifei Wang, Yan Liu, Qiming Li, Zhiqi Li, Ao Xu, Caifu Dong, Jianchao Sun, Xiaoyu Zhang, Xueqin Sun, Jian Yang, Fuyi Jiang, Yanli Zhou
Summary: The N-doped carbon wrapped porous FeS0.5Se0.5 nanorods (FeS0.5Se0.5@NC) are successfully designed using FeOOH nanorods, poly-dopamine, sulfuration, and selenization processes. The FeS0.5Se0.5@NC exhibits remarkable sodium storage properties in room-temperature sodium ion batteries due to the cooperative effect of dual-anion guided hetero-structure and the protection of the N-doped carbon layer. It shows satisfied specific capacity, long-period cycling stability, and prominent rate capability, even at low temperatures.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Longzhi Li, Yue Deng, Kunkun Hu, Bangqiang Xu, Nana Wang, Zhongchao Bai, Xun Xu, Jian Yang
Summary: Lithium-ion batteries have been widely used, but their energy density is not meeting the demand. Silicon is considered as a potential next-generation anode material for lithium-ion batteries due to its high theoretical specific capacity. However, the volume expansion issue of silicon-based anode materials can lead to performance reduction. This work reviews and evaluates modification measures of Si, SiO, and SiO2 to address these challenges and discusses future development recommendations.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Yanli Zhou, Qiming Li, Qi Han, Lanling Zhao, Yan Liu, Yifei Wang, Zhiqi Li, Caifu Dong, Xueqin Sun, Jian Yang, Xiaoyu Zhang, Fuyi Jiang
Summary: The hierarchical Cu2S@NC@MoS3 heterostructures, consisting of Cu2S hollow nanospheres decorated with high-capacity MoS3 and high-conductive N-doped carbon, exhibit excellent electrochemical performance for sodium ion storage. The presence of a N-doped carbon layer as a linker facilitates uniform deposition of MoS3, enhancing structural stability and electronic conductivity. The hollow/porous structures effectively alleviate volume changes of active materials. The ternary Cu2S@NC@MoS3 heterostructures demonstrate high charge capacity, excellent rate capability, and long cyclic life, making them promising for energy storage applications.
Review
Chemistry, Physical
Chuanhao Nie, Gulian Wang, Dongdong Wang, Mingyue Wang, Xinran Gao, Zhongchao Bai, Nana Wang, Jian Yang, Zheng Xing, Shixue Dou
Summary: Aqueous Zn-ion batteries have gained significant attention as a promising energy storage candidate due to their safety, cost-effectiveness, and eco-friendliness. However, the cycling stability of Zn metal anodes is a major challenge due to issues such as dendrite growth and hydrogen evolution. Interface engineering strategies, including controllable synthesis of Zn, surface engineering, electrolyte formulation, and separator design, have been developed to address these challenges. This review provides an update on these strategies and discusses future challenges and perspectives for the development of practical AZIBs.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Cheng Wang, Dongdong Wang, Dan Lv, Huili Peng, Xinxin Song, Jian Yang, Yitai Qian
Summary: The use of aluminum hydroxide fluoride coated on Cu foils enables the realization of anode-free aqueous batteries, with high adsorption affinity to H2O and low diffusion energy barrier for Zn adatoms, resulting in improved cycle life and efficiency of the batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xinxin Song, Linyu Bai, Chenggang Wang, Dongdong Wang, Kun Xu, Jingjing Dong, Yanlu Li, Qiang Shen, Jian Yang
Summary: Researchers have achieved Zn(002) texture and surface coating on zinc foils through a one-step annealing process, effectively reducing side reactions and dendrite growth in zinc metal batteries and improving electrochemical performance.
Article
Chemistry, Multidisciplinary
Dongdong Wang, Dan Lv, Huili Peng, Cheng Wang, Hongxia Liu, Jian Yang, Yitai Qian
Summary: An electrolyte additive, hexamethylphosphoric triamide (HMPA), is reported for achieving stable cycling of Zn anodes. HMPA reshapes the solvation structures and promotes anion decomposition, leading to the in situ formation of inorganic-rich solid-electrolyte-interphase. Symmetric cells with HMPA in the electrolyte can survive over 500 hours at 10 mA cm(-2) or over 200 hours at 40 mA cm(-2) with a Zn utilization rate of 85.6%. Full cells of Zn||V2O5 exhibit a record-high cumulative capacity even under a lean electrolyte condition, limited Zn supply, and high areal capacity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Huili Peng, Chunting Wang, Dongdong Wang, Xinxin Song, Chenghui Zhang, Jian Yang
Summary: Ultrathin nanosheets of α-zirconium phosphate (ZrP) are used as an electrolyte additive, which create a dynamic and reversible interphase on the Zn anode and promote the Zn2+ transportation in the electrolyte. This greatly improves the electrochemical performance of Zn metal as an anode material in batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Applied
Dan Lv, Huili Peng, Cheng Wang, Hongxia Liu, Dongdong Wang, Jian Yang, Yitai Qian
Summary: This study proposes a method for screening metal coatings on zinc anodes based on theoretical evaluation of depolarization effect and dendrite suppression. Experimental results show that cadmium (Cd) coating on zinc anodes exhibits an ultra-long cycle life and high cumulative capacity at high current density. This work not only presents the first report of Cd coating for stabilizing zinc anodes, but also provides a feasible way to screen promising metal materials for other metal anodes.
JOURNAL OF ENERGY 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)