Article
Chemistry, Multidisciplinary
Martin Karlsmo, Roza Bouchal, Patrik Johansson
Summary: A novel aqueous electrolyte was proposed to inhibit PTCDA dissolution and enable high-performance all-organic ASIB anodes. It is based on inexpensive, non-fluorinated Na/Mg salts, displaying favorable physico-chemical properties and an electrochemical stability window >3 V without extreme salt concentrations.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Engineering, Environmental
Mingshan Wang, Anmin Peng, Jinxiu Jiang, Min Zeng, Zhenliang Yang, Junchen Chen, Bingshu Guo, Zhiyuan Ma, Bo Yu, Yanning Zhang, Xing Li
Summary: The transition metal selenite CoSeO3 single crystal nanoparticles show good performance as anode material for sodium ion batteries/capacitors. It exhibits stable Na+ storage capacity at high current density, as well as high energy density and good energy retention after long cycles. The formation of heterointerfaces between CoO and SeO2 during the charge/discharge process contributes to the enhanced sodium-ion storage.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Yiwei Li, Shiming Chen, Shenyang Xu, Zijian Wang, Kai Yang, Jiangtao Hu, Bo Cao, Wenguang Zhao, Mingjian Zhang, Luyi Yang, Feng Pan
Summary: The use of NaCF3SO3 electrolyte salt has been found to significantly improve the initial Coulombic efficiency and reversible capacity of high-surface-area carbon anode, attributed to the reduced amount of NaxC and formation of a thinner SEI layer providing extra active sites for Na+ storage.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Huan Liu, Huiling Du, Wei Zhao, Xiaojing Qiang, Bin Zheng, Ying Li, Bin Cao
Summary: Mesoporous carbon with ultrathin framework (MCUF) was designed as an anode material for stable and high-power potassium storage performance, showing excellent potassium storage characteristics. The novel non-flammable potassium-ion capacitors assembled with MCUF exhibited outstanding cyclability, rate performance, and energy/power densities.
ENERGY STORAGE MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Dheeraj Kumar Maurya, Ragupathy Dhanusuraman, John Zhanhu Guo, Subramania Angaiah
Summary: In this study, a nanofillers-reinforced 3D-electrospun nanofibrous hybrid polymer membrane (ESHPM) was prepared by electrospinning technique to overcome the challenges of poor thermal stability and low ionic conductivity in an electrolyte. The ESHPM exhibited excellent properties such as morphology, porosity, crystallinity, thermal stability, dimensional stability, operating potential window, and ionic conductivity. This research offers a potential solution for developing high-performing sodium-ion capacitors (NICs) with high energy and power densities.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Fei Xie, Zhen Xu, Zhenyu Guo, Yaxiang Lu, Liquan Chen, Maria-Magdalena Titirici, Yong-Sheng Hu
Summary: Na-ion batteries are gaining attention as an alternative to lead-acid batteries and a supplement to Li-ion batteries due to abundant Na resources and cost-effectiveness. Disordered carbons are considered the most promising anode candidates for NIBs, but challenges and remaining problems in design and understanding still need to be addressed.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Chemistry, Physical
Gongrui Wang, Wentao Wang, Xiaoyue He, Jie Li, Lai Yu, Bo Peng, Genqiang Zhang
Summary: The researchers prepared a bi-functional hierarchical porous carbon material with superior energy storage performance for potassium ion hybrid capacitors. The material exhibited high specific capacity, stable cycling capability, and high energy/power density. The enhanced potassium ion storage was attributed to the synergy of structure, electronic properties, and ion adsorption kinetics. This study is of great importance for large-scale energy storage.
ENERGY STORAGE MATERIALS
(2022)
Review
Polymer Science
Chao Han, Xinyi Wang, Jian Peng, Qingbing Xia, Shulei Chou, Gang Cheng, Zhenguo Huang, Weijie Li
Summary: The hybrid ion capacitor (HIC) combines the intercalation mechanism of a lithium-ion battery anode with the double-layer mechanism of the cathode, bridging the gap between batteries and supercapacitors. Two-dimensional (2D) carbon materials are promising candidates for hybrid capacitors due to their unique properties. This review discusses the role of 2D carbon in hybrid capacitors, recent progress in their application, and challenges in their future development.
Article
Chemistry, Physical
Noel Diez, Marta Sevilla, Antonio B. Fuertes
Summary: N/S-co-doped carbon nanoparticles with small size and highly disordered microstructure, high N and S doping level, and short solid-state diffusion distances have been successfully synthesized for sodium storage applications.
Article
Chemistry, Physical
Xiaoqiong Du, Yao Gao, Zhen Hou, Xuyun Guo, Ye Zhu, Biao Zhang
Summary: This study investigates the stable cycling mechanism of ether-based electrolytes and reveals that the formation of thin yet strong solid electrolyte interphases (SEIs) improve the stability and rate capability of alloy anodes.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Alba Fombona-Pascual, Noel Diez, Antonio B. Fuertes, Marta Sevilla
Summary: An eco-friendly and sustainable salt-templating approach was proposed for the production of anode materials with a 3D sponge-like structure for sodium-ion capacitors. The optimized carbon material provided short diffusional paths, a highly disordered microstructure, and plenty of active sites for Na adsorption, resulting in high capacity and good capacity retention. When combined with a specific cathode material, the Na-ion capacitor exhibited high specific energy/power and maintained good performance over cycles.
Article
Nanoscience & Nanotechnology
Weijia Meng, Jun Han, Zhenzhen Dang, Diansen Li, Lei Jiang
Summary: The study explores a dual doping strategy to significantly enhance the conductivity and cycling stability of TiO2, resulting in extraordinary high-rate performance and long-term cyclability. High concentrations of N, C, and oxygen vacancies co-doped in TiO2 have a positive effect on its characteristics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Xiao Fang, Chao Hu, Xiaoyi Sun, Haiyan Wang, Juan Li
Summary: A novel colloidal electrolyte has been developed to inhibit dendrite growth on the anode of zinc-ion batteries, resulting in the formation of an ultrastable electrode-electrolyte interface during cycling. This electrolyte strategy enables stable zinc plating/stripping under high current density and high coulombic efficiency for thousands of cycles, and it is also applicable to zinc-ion hybrid capacitors.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Afshin Pendashteh, Brahim Orayech, Hugo Suharcl, Maria Jauregui, Jon Ajuria, Begona Silvan, Skye Clarke, Francisco Bonilla, Damien Saurel
Summary: A mechanical treatment strategy is proposed to improve the performance of soft carbon materials as negative electrodes in sodium-ion batteries. The study reveals that mechanical treatment at an intermediate stage can significantly change the structure and properties of the carbon matrix. The optimized samples show high initial coulombic efficiency, reversible capacity, and high-rate performance, providing a new approach for developing high-performance soft carbon-based electrodes for energy storage.
ENERGY STORAGE MATERIALS
(2022)
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
Chemistry, Physical
Xiaomin Zhang, Gaoran Li, Yongguang Zhang, Dan Luo, Aiping Yu, Xin Wang, Zhongwei Chen
Summary: This study presents a novel strategy for efficient lithium-sulfur battery electrochemistry by modifying the separator with amorphous metal organic framework (MOF). The aMIL-88B-modified separator exhibits superior cyclability and high capacity retention in lithium-sulfur batteries.
Article
Chemistry, Physical
Jiayi Wang, Yan Zhao, Gaoran Li, Dan Luo, Jiabing Liu, Yongguang Zhang, Xin Wang, Lingling Shui, Zhongwei Chen
Summary: By combining architectural and sulfur-vacancy engineering, the interaction between ZnS and active sulfur is improved, facilitating ion/electron transfer, immobilizing lithium polysulfide, and accelerating sulfur reaction kinetics.
Article
Chemistry, Physical
L. Zhang, X. Hu, Y. Wu, Y. Gao, C. Lin, C. Dong, G. Li, F. Xu, S. Zhang, K. Zhang
Summary: Transition metal phosphates, specifically delta phase VOPO4 (delta-VPO) nanosheets with intrinsic V4+ defect, demonstrated superior performance as cathode materials for sodium-ion batteries (SIBs) in terms of specific capacity and cycling stability. The high V4+ defect concentration of VPO resulted in enhanced conductivity and reduced redox polarization, while delta-VPO enabled high cycling stability due to limited lateral size expansion. This work offers a potentially alternative cathode material with controllable phases and defects toward high-performance SIBs.
MATERIALS TODAY ENERGY
(2021)
Article
Engineering, Environmental
Kailong Zhang, Wenlong Cai, Yanfang Liu, Guang Hu, Weiwei Hu, Yazhou Kong, Xiaojie Zhang, Liangbiao Wang, Gaoran Li
Summary: This study successfully overcomes the challenges of lithium-sulfur batteries by preparing silver-decorated nitrogen-doped carbon materials, achieving excellent electrochemical performance. It provides an effective pathway for multifunctional compounds and holds great promise in future developments of high-performance lithium-sulfur batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Ceramics
Li Gaoran, Li Hongyang, Zeng Haibo
Summary: This paper reviews the recent research progress of boron-based materials in lithium-sulfur batteries and introduces the roles of materials such as borophene, boron atom-doped carbon, metal borides, and non-metal borides in stabilizing and promoting sulfur electrochemistry.
JOURNAL OF INORGANIC MATERIALS
(2022)
Article
Chemistry, Physical
Zhaoming Tong, Liang Huang, Junyan Guo, Haijun Zhang, Quanli Jia, Gaoran Li, Wen Lei, Huaiyu Shao, Shaowei Zhang
Summary: This study focuses on the structural modification of sulfur hosts in lithium sulfur batteries (LSBs) to improve their utilization rate and cycling performance. The researchers constructed a carbonaceous host decorated with metallic nitride nanoparticles and achieved promising results in terms of discharge capacity, areal capacity, cyclability, and capacity fading rate. The interaction between the host and sulfur was found to play a crucial role in enhancing the performance of LSBs.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Gaoran Li, Weilong Qiu, Wanjie Gao, Yaojie Zhu, Xiaomin Zhang, Hongyang Li, Yongguang Zhang, Xin Wang, Zhongwei Chen
Summary: In this work, a flower-like graphene microassembly decorated with finely-dispersed Ni2Co nanoalloy (Ni2Co@rGO) is developed as an advanced host matrix for Li-S batteries. The Ni2Co nanoalloys exhibit strong adsorbability against polysulfide shuttling and excellent catalytic activity for sulfur conversions. The sophisticated architecture of the microassembly facilitates electron/ion transport and highly-exposed active interfaces, enabling fast and durable sulfur electrochemistry. The use of Ni2Co@rGO as an anode matrix also improves the Li redox behavior.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Engineering, Environmental
Ximeng Zhao, Yani Guan, Xiaohang Du, Guihua Liu, Jingde Li, Gaoran Li
Summary: In this study, a new structure for the cathode of lithium-sulfur batteries was proposed. It consists of a conductive oxide-based matrix and N-doped carbon nanocages, which can effectively catalyze and fix sulfur for reversible and rapid redox reactions. The experimental results show that this cathode material exhibits excellent cycling stability and rate capability under various testing conditions.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Jiayi Wang, Weibin Qiu, Gaoran Li, Jiabing Liu, Dan Luo, Yongguang Zhang, Yan Zhao, Guofu Zhou, Lingling Shui, Xin Wang, Zhongwei Chen
Summary: In this study, the deficiency coordination of single-atom Fe site was predicted and validated to enhance sulfur immobilization and catalytic activity, leading to the preparation of a high-performance catalyst for Li-S batteries. The monodispersed FeN2-NC showed excellent electrochemical performance through tuning the coordination number.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yun Zheng, Na Yang, Rui Gao, Zhaoqiang Li, Haozhen Dou, Gaoran Li, Lanting Qian, Yaping Deng, Jiequan Liang, Leixin Yang, Yizhou Liu, Qianyi Ma, Dan Luo, Ning Zhu, Kecheng Li, Xin Wang, Zhongwei Chen
Summary: This study reports a novel tree-trunk design flexible and robust quasi-solid-state electrolyte for ultralong-life lithium-metal batteries. The electrolyte forms hierarchical ion-channels, enabling rapid ion transfer kinetics and excellent durability. Flexible batteries fabricated with this electrolyte achieve high capacity and excellent cycle life under high load and mass loading.
ADVANCED MATERIALS
(2022)
Article
Engineering, Environmental
Zongke He, Tongtao Wan, Yuhong Luo, Guihua Liu, Lanlan Wu, Fang Li, Zisheng Zhang, Gaoran Li, Yongguang Zhang
Summary: In this study, a high-performance sulfur host was developed by introducing oxygen vacancies and Nb-doping into a porous structured conductive TiO2. The host matrix was designed into a 3D ordered macroporous skeleton with N-doped carbon fillers, providing large and stable space for sulfur accommodation. The sulfur cathode based on this host exhibited low capacity fading rate and high areal capacity, making it a promising candidate for efficient and durable Li-S batteries.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Hongyang Li, Bo Cai, Yingze Song, Wenlong Cai, Gaoran Li
Summary: Here, a bidirectional polarization strategy is proposed to improve the efficiency and durability of lithium-sulfur batteries. By co-doping N and B in graphene matrix (BNrGO), the electron redistribution enables a higher polysulfide affinity, resulting in strong sulfur immobilization and fast conversion kinetics. The BNrGO cathode host matrix exhibits excellent cycling stability over 1000 cycles and high rate capability up to 10 C. This study provides valuable insights into the interaction between doping engineering and sulfur electrochemistry for superior Li-S batteries.
CHINESE CHEMICAL LETTERS
(2023)
Article
Multidisciplinary Sciences
Yanfei Zhu, Qi Zhang, Yun Zheng, Gaoran Li, Rui Gao, Zhihong Piao, Dan Luo, Run-Hua Gao, Mengtian Zhang, Xiao Xiao, Chuang Li, Zhoujie Lao, Jian Wang, Zhongwei Chen, Guangmin Zhou
Summary: Composite-polymer-electrolytes (CPEs) embedded with an unsaturated coordination Prussian blue analog (UCPBA) filler demonstrate fast and preferential Li+ conduction through a chemically stable electrolyte/filler interface (EFI). The unsaturated Co-O coordination in UCPBA ensures a stable EFI and prevents side reactions, while the Lewis-acid metal centers attract the Lewis-base anions of Li salts, enhancing Li+ disassociation and transference number (tLi+). These CPEs exhibit high room-temperature ionic conductivity and excellent cyclability and capacity retention for solid-state lithium-sulfur batteries.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Multidisciplinary
Hongyang Li, Guxian Chen, Kailong Zhang, Liangbiao Wang, Gaoran Li
Summary: In this study, chromium boride is developed as a sulfur electrocatalyst, enabling fast and efficient sulfur electrochemistry in lithium-sulfur batteries. The unique dual-sulphophilic mechanism of the chromium boride facilitates strong interactions with the intermediate polysulfides, leading to excellent cyclability, rate capability, and high-loading performances of Li-S batteries.
Article
Chemistry, Physical
Jiayi Wang, Gaoran Li, Dan Luo, Yan Zhao, Yongguang Zhang, Guofu Zhou, Lingling Shui, Xin Wang
Summary: The study introduces a unique niobium oxide matrix as a two-in-one host for high-performance lithium-sulfur batteries, exhibiting excellent cycling performance and rate capability. The heterostructured design shows simultaneous stabilization and catalyzation for sulfur electrochemistry in the cathode matrix, while also facilitating lithium redox kinetics and uniformizing lithium nucleation/growth behaviors in the anode matrix, leading to enhanced battery performance and stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Electrochemistry
Abdul Qayoom Mugheri, Shaista Khan, Ali Asghar Sangah, Aijaz Ahmed Bhutto, Muhammad Younis Laghari, Nadeem Ahmed Mugheri, Asif Ali Jamali, Arsalan Ahmed Mugheri, Nagji Sodho, Abdul Waheed Mastoi, Aftab Kandhro
Summary: Green hydrogen has the potential to transition to a pollution-free energy infrastructure. This study proposes a solution to produce hydrogen during the photoelectrochemical process, offering greater stability and control over chemical reactions. Techno-economic assessments show the efficiency and economic feasibility of co-producing value-added chemicals to enhance green hydrogen production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Danpeng Cheng, Wuxin Sha, Qigao Han, Shun Tang, Jun Zhong, Jinqiao Du, Jie Tian, Yuan-Cheng Cao
Summary: LiNixCoyMn1-x-yO2 (NCM) is a critical cathode material for lithium-ion batteries in electric vehicles. The aging of cathode/electrolyte interfaces leads to capacity degradation and long-term cycle instability. A novel neural network model called ACGNet is developed to predict electrochemical stability windows of crystals, allowing for high-throughput screening of coating materials. LiPO3 is identified as a promising coating material with high oxidation voltage and low cost, which significantly improves the cycle stability of NCM batteries. This study demonstrates the accuracy and potential of machine learning in battery materials.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
P. Mohana, R. Yuvakkumar, G. Ravi, S. Arunmetha
Summary: This study successfully fabricates a non-noble CuO/NiO/rGO nanocomposite and investigates its electrocatalytic performance for oxygen evolution reaction in alkaline environment. The experimental results demonstrate that the electrocatalyst exhibits high activity and good stability, offering a new synthetic approach for sustainable energy production.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Qiong Qu, Jing Guo, Hongyu Wang, Kai Zhang, Jingde Li
Summary: In this study, a bifunctional electrode host design consisting of carbon nanofibers implanted ordered porous Co-decorated Al2O3 supported on carbon nanotube film (CNTF) was proposed to address the shuttling effect of lithium polysulfides (LiPSs) and dendrite formation of metal lithium anode in lithium-sulfur (Li-S) batteries. The electrode exhibited excellent conductivity, efficient confinement of LiPSs, and catalytic conversion performance, resulting in high initial capacity and good capacity retention during cycling. As an anode, the electrode showed excellent Li+ diffusion performance and uniform lithium growth behavior, achieving a dendrite-free lithium electrode. The flexible pack cell assembled from these electrodes delivered a specific capacity of 972 mAh g(-1) with good capacity retention.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Hong Zhang, Jin-Peng Yu, Chen Chen, Cheng-Yong Shu, Guang-Yu Xu, Jie Ren, Kai Cui, Wen-Fang Cai, Yun-Hai Wang, Kun Guo
Summary: Spray coating of acetylene black nanoparticles onto stainless steel mesh can enhance its biofilm formation ability and current density, making it a promising electrode material for microbial electrochemical systems. The spray coating method is simple, cost-effective, and suitable for large-size stainless steel electrodes.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Binpeng Hou, Jingjin Chen, Li-Hong Zhang, Xiaowen Shi, Zizhong Zhu
Summary: The electrochemical performance of Li1.20Mn0.44Ni0.32Co0.04O2 and its oxygen-deficient phase Li1.20Mn0.44Ni0.32Co0.04O1.83 was studied through first-principles calculations. The results show that the oxygen-deficient phase has a higher theoretical capacity but lower voltage platform and higher chemical activity compared to the pristine phase.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Yating Du, Sayoko Shironita, Daisuke Asakura, Eiji Hosono, Yoshitsugu Sone, Yugo Miseki, Eiichi Kobayashi, Minoru Umeda
Summary: This study investigates the effect of high- and low-temperature environments on the charge-discharge performance of a Li-ion battery. The deterioration mechanisms of the battery at different temperatures are analyzed through various characterization techniques. The results indicate that the battery performance deteriorates more significantly at a low-temperature environment of 5 degrees C compared to higher temperatures. The understanding of the deterioration mechanisms can contribute to the development of safer battery usage methods.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Si-Si Shi, Zhi-Xiang Yuan, Fei Zhang, Ping Chen
Summary: In this study, a new nano-electrocatalyst was prepared, which exhibited superior electrocatalytic activity for the reduction of NO2- to ammonia in a neutral electrolyte, potentially due to the synergistic enhancement between Co3O4-x and Co.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Berna Dalkiran, Havva Bekirog
Summary: This study reports the use of deep eutectic solvents (DES) based on ethylene glycol and urea as low-cost and green electrolytes for enhancing electrochemical detection of natural antioxidants. The study successfully developed a disposable and effective electrochemical sensing platform for simultaneous determination of ascorbic acid (AA) and gallic acid (GA) using NaOH nanorods on a pencil graphite electrode. The proposed electrode showed improved analytical performance, with higher peak currents and shifted oxidation potentials in DES compared to BR buffer medium.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Sijun Ren, Jianguo Huang
Summary: In this study, a novel bio-inspired nanofibrous WO3/carbon composite was synthesized using a facile hydrothermal method. The three-dimensional network structure of the composite alleviated the volume expansion of WO3 nanorods and enhanced the charge-transport kinetics. The optimized composite exhibited superior lithium storage properties.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Zhilong Zheng, Yu Chen, Hongxia Yin, Hengbo Xiao, Xiangji Zhou, Zhiwen Li, Ximin Li, Jin Chen, Songliu Yuan, Junjie Guo, Haibin Yu, Zhen Zhang, Lihua Qian
Summary: This study found that interstitial Zn cations in CoMoO4 can modulate the dissolution kinetics of Mo cations and improve the OER performance. The interstitial Zn cations can prevent the dissolution of Co cations at high potential, enhancing the durability of the catalyst.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Xiaobo Lin, Shern R. Tee, Debra J. Searles, Peter T. Cummings
Summary: Molecular dynamics simulations using the constant potential method were used to investigate the charging dynamics and charge storage of supercapacitors. The simulations revealed that the water-in-salt electrolyte exhibited the highest charge storage and significantly higher capacitance on the negative electrode. The varying contributions of different electrode regions to supercapacitor performance were also demonstrated.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Wiktoria Lipinska, Vita Saska, Katarzyna Siuzdak, Jakub Karczewski, Karol Zaleski, Emerson Coy, Anne de Poulpiquet, Ievgen Mazurenko, Elisabeth Lojou
Summary: The spatial distribution of enzymes on electrodes is important for bioelectrocatalysis. In this study, controlled spatial distribution of gold nanoparticles on Ti nanodimples was achieved. The efficiency of enzymatic O2 reduction was found to be influenced by the size of the gold nanoparticles and their colocalization with TiO2. The highest stability of enzymatic current was observed with the largest gold nanoparticles.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Tariq M. Al-Hejri, Zeenat A. Shaikh, Ahmed H. Al-Naggar, Siddheshwar D. Raut, Tabassum Siddiqui, Hamdan M. Danamah, Vijaykumar V. Jadhav, Abdullah M. Al-Enizi, Rajaram S. Mane
Summary: This study explores a promising self-growth approach for the synthesis of nickel hydroxide (Ni(OH)2) nanosponge-balls on the surface of a nickel-foam (NiF) electrode. The modified NiF electrode, named Ni(OH)2@NiF, shows distinctive nanosponge-ball morphology and demonstrates excellent energy storage capability and electrocatalytic performance in both hydrogen and oxygen evolution reactions.
ELECTROCHIMICA ACTA
(2024)
Article
Electrochemistry
Rafael Del Olmo, Gregorio Guzman-Gonzalez, Oihane Sanz, Maria Forsyth, Nerea Casado
Summary: The use of Lithium-Ion Batteries (LIBs) is becoming increasingly extensive, and it is important to optimize the devices to achieve their maximum practical specific capacity. In this study, mixed ionic-electronic conducting (MIEC) binders based on PEDOT:PSS and PEDOT: PDADMA-TFSI were developed for Li-ion cathodes, and their performance was compared with conventional formulations. The influence of electrode formulations, including the addition of conducting carbon and an Organic Ionic Plastic Cristal (OIPC), was also analyzed. The proposed binders showed improved performance compared to conventional formulations with different electrolyte types and active materials.
ELECTROCHIMICA ACTA
(2024)