Article
Materials Science, Multidisciplinary
Yonghua Sun, Youjie Rong, Ya Zhao, Yuyu Zhao, Ruiqiang Hang, Xiaohong Yao, Paul K. Chu
Summary: The electrochemical stability of Ni-Ti-O nanoporous layers grown on equiatomic NiTi alloy was assessed by immersion in water and phosphate buffered saline, showing no significant change in morphology, composition, and structure even after 60 days. The layers also exhibited retained corrosion resistance, antibacterial ability, and cytocompatibility, indicating their potential as coatings on NiTi biomedical implants.
Article
Nanoscience & Nanotechnology
M. Hatakeyama, N. Masahashi, Y. Michiyama, H. Inoue, S. Hanada
Summary: Comparative study reveals that the anodized TiNbSn alloy exhibits superior mechanical properties, with higher hardness, surface roughness, and exfoliation strength compared to Ti6Al4V and pure Ti. Its wear resistance significantly improves under both dry and wet conditions, demonstrating potential as an implant biomaterial.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Ceramics
Alberto Z. Fatichi, Mariana G. de Mello, Karina D. Pereira, Luisa G. M. Antonio, Augusto D. Luchessi, Rubens Caram, Alessandra Cremasco
Summary: The electrochemical, structural, and biological properties of self-organized amorphous and anatase/rutile titanium dioxide (TiO2) nanotubes deposited on Ti-35Nb-4Zr alloy through anodization-induced surface modification were investigated. The study found that anatase TiO2 exhibited higher surface corrosion resistance and cell viability compared to amorphous TiO2, indicating the importance of TiO2 nanotube crystallization in the material's electrochemical behavior and biocompatibility.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Qiquan Li, Lingtong Kong, Shuogui Xu, Hao Gong, Yan Li
Summary: The corrosion resistance and cytocompatibility of Ti-19Zr-11Nb-4Ta shape memory alloy were investigated, revealing its excellent superelasticity and higher corrosion resistance compared to Ti and Ti-6Al-4V. The alloy also showed a low release rate of ions and good cytocompatibility, making it a promising material for biomedical applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Biotechnology & Applied Microbiology
Jiantao Liu, Kao Wang, Xingyuan Li, Xiwei Zhang, Xi Gong, Yihan Zhu, Zhiwei Ren, Bin Zhang, Jun Cheng
Summary: Ti6Al4V titanium alloy used for orthopedic and maxillofacial implants has drawbacks such as high elastic modulus, poor osseointegration performance, and toxic elements. This study developed a new medical titanium alloy material, Ti-B12, with better comprehensive performance and further studied its biocompatibility and osseointegration properties.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Metallurgy & Metallurgical Engineering
Zhe-xuan Li, Ya-ting Bao, Lian-kui Wu, Fa-he Cao
Summary: The anodized Ti45Al8.5Nb alloy showed good resistance against oxidation at high temperatures, with hardness and elastic modulus changing with prolonged thermal exposure due to the generation of Al2O3-enriched outermost oxide layer.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Materials Science, Multidisciplinary
Pengfei Ji, Shuguang Liu, Hongyun Deng, Hongzhi Ren, Jingkang Zhang, Taojian Sun, Kuixue Xu, Chunbao Shi
Summary: Coatings prepared by magnetron sputtering on titanium alloy substrates can improve the surface hardness and corrosion resistance of the alloy, effectively hinder the growth of columnar structures, and exhibit excellent cytocompatibility.
Article
Chemistry, Physical
N. Masahashi, Y. Mori, H. Kurishima, H. Inoue, T. Mokudai, S. Semboshi, M. Hatakeyama, E. Itoi, S. Hanada
Summary: An anodized bioactive TiNbSn alloy exhibited highly crystallized porous rutile-structured TiO2 on its surface, which showed superior photoactivity compared to a relatively low-crystallized glassy anatase-structured TiO2 formed on pure Ti. The anodized TiNbSn alloy demonstrated enhanced photoactivity and hydroxyl radical generation under ultraviolet illumination compared to pure Ti.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Shenshen Cui, Shuo Liu, Jingjun Nie, Dafu Chen, Xinbao Wu, Gaowu Qin, Erlin Zhang
Summary: Titanium and titanium alloys have been widely used in the biomedical field due to their excellent physical, chemical, and biological properties. In this study, Ti-15Mo-xAg alloys with low elastic modulus and excellent antibacterial ability were designed and prepared. The microstructure, mechanical properties, antibacterial properties, and cytocompatibility were investigated. The results showed that Ti-15Mo-10Ag alloy exhibited a strong antibacterial rate of 99.5%, good cellular compatibility, and a low elastic modulus of 85 GPa, suggesting that this alloy may be a highly competitive medical material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Pradeep Singh, Vikas Shrivastava, I. B. Singh, D. P. Mondal
Summary: The research on three groups of porous Ti4Al4Co samples revealed significant microstructural transformations due to powder milling and different sintering atmospheres, which in turn affected the mechanical and corrosion properties of the alloy. Sample S-1 showed the highest compressive strength and lowest corrosion current density among the three samples.
METALS AND MATERIALS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ya Zhao, Long Bai, Yonghua Sun, Xiaohong Yao, Xiaobo Huang, Ruiqiang Hang, Di Huang
Summary: A reliable and cost-effective method, alkali corrosion, is used to construct nanosheet layers on a nearly equiatomic nickel-titanium (NiTi) alloy. The layers are mainly composed of TiO2, Na4TiO4, and Ni(OH)(2), with Ni content increasing with NaOH concentration. Despite slightly decreased corrosion resistance due to increased specific surface area, the nanosheet layers exhibit potent antibacterial ability and can promote endothelial spreading and proliferation. The combination of good corrosion resistance, antibacterial ability, and cytocompatibility makes the nanosheet layers promising as biomedical coatings for the NiTi alloy.
Article
Materials Science, Multidisciplinary
Meng Zhang, Yongsheng Wang, Wenru Jia, Dandan Ma, Xiaobo Huang, Shengwang Yu, Yucheng Wu
Summary: Ta2O5-doped TiO2 nanotubes were prepared to improve cytocompatibility to endothelial cells, showing potential for biomedical applications.
Article
Materials Science, Multidisciplinary
Yuanyong Ouyang, Zihao Zhang, Wei Huang, Wenzhong Yang, Chuanlai Shen, Yun Chen, Xiaoshuang Yin, Ying Liu
Summary: Fluorinated hydroxyapatite-titanium dioxide coating (F-doped HA-TiO2) was successfully deposited onto AZ31 Mg alloy using electrodeposition method. The coating exhibited uniform structure and thickness. The modified coating significantly enhanced the corrosion resistance of AZ31 Mg alloy and showed superior biocompatibility.
JOURNAL OF MATERIALS SCIENCE
(2022)
Article
Chemistry, Applied
Athos F. Araujo, Marcos V. F. Ferreira, Marcos D. Felisberto, Dalila C. Sicupira, Leandro A. Santos
Summary: The mechanical responses and corrosion protection capacity of two graphene-based coatings on a NiTi alloy were evaluated under superelastic loading cycles. Both GO and rGO + SEBS coatings demonstrated the ability to form uniform coatings and withstand multiple superelastic cycles, with the rGO + SEBS coating showing significant improvement in terms of corrosion resistance.
PROGRESS IN ORGANIC COATINGS
(2022)
Article
Engineering, Biomedical
Reginaldo Toshihiro Konatu, Danielle Duque Domingues, Rodrigo Franca, Ana Paula Rosifini Alves
Summary: In this study, the possibility of using anodization to obtain TiO2 nanotubes was evaluated, and the surface chemical composition was determined using X-ray photoelectron spectroscopy. The results showed that the anodization process resulted in nanotubes with larger diameters and thicknesses, and the oxide layer contained different oxidation states of Ti, Zr, and Mo elements.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Xinjiang Zhang, Anping Huang, Zhisong Xiao, Mei Wang, Jing Zhang, Paul K. Chu
Summary: The transfer characteristics and switching mechanism of the steep-slope transistor composed of the graphene/Janus MoSSe heterostructure have been investigated. The gate voltage can tune the Schottky barrier height and tunneling width, resulting in ambipolar switching with two minima in the subthreshold swing slope. The device provides a solution and guidance for the future design of low-power, high-performance devices.
Article
Electrochemistry
Huiyun Shi, Youyuan Zhang, Ning Pang, Shaohui Xu, Dayuan Xiong, Lianwei Wang, Pingxiong Yang, Paul K. Chu
Summary: The surface admittances calculated from electrochemical impedance spectra are utilized to analyze the surface states of X-MoS2 (X=Fe, Co, Ni) prepared on graphite felt. The semiconducting properties of Fe-MoS2 at the electrolyte-semiconductor interface lead to enhanced bifunctional catalytic properties in the hydrogen/oxidation evolution reactions (HER/OER) due to improved surface adsorption/desorption and slow-changing surface conductance. The surface morphology and electric field between the semiconductor and electrolyte are critical parameters affecting the surface properties in HER/OER.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Multidisciplinary
Shi Mo, Kaiwei Tang, Qing Liao, Lingxia Xie, Yuzheng Wu, Guomin Wang, Qingdong Ruan, Ang Gao, Yuanliang Lv, Kaiyong Cai, Liping Tong, Zhengwei Wu, Paul K. Chu, Huaiyu Wang
Summary: Bacteria killing behavior based on physical effects is preferred for biomedical implants due to minimal side effects. However, the understanding of antibacterial activity of nanostructures is limited, and nanoarchitectures on orthopedics should also promote bone formation. This study fabricated tilted and vertical nanolamellar structures on polyether-ether-ketone (PEEK) and found that both types physically kill bacteria, but through different mechanisms. Tilted nanostructures are more desirable for peri-implant bone regeneration. This research provides insights into the arrangement of nanostructures in orthopedic applications and different mechanisms of physical antibacterial activity.
MATERIALS HORIZONS
(2023)
Article
Engineering, Environmental
Shuyu Fan, Shu Xiao, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: High-quality hydrogenated graphene coatings with superior lubricating properties and long service lifetime are synthesized on industrial materials through hot-filament chemical vapor deposition. The hydrogenated graphene coatings exhibit ultra-low friction and even localized superlubricity, providing a new approach to achieving macroscale superlubricity and high durability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Nian He, Jian Li, Wenjing Li, Xiangsong Lin, Qingyun Fu, Xiang Peng, Weihong Jin, Zhentao Yu, Paul K. Chu
Summary: In this study, a new coating structure consisting of a poly(lactic acid) (PLA) coating and a (3-aminopropyl) triethoxysilane (ATS) transition layer was successfully fabricated to improve the corrosion rate and cytocompatibility of magnesium (Mg) alloys in the physiological environment, thus enhancing their potential application as bone fracture fixation devices.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuyu Fan, Yinong Chen, Shu Xiao, Kejun Shi, Xinyu Meng, Songsheng Lin, Fenghua Su, Yifan Su, Paul K. Chu
Summary: Graphene coatings are promising solid lubrication materials due to their mechanical properties. This study presents a new method for in situ deposition of high-quality graphene coatings on hard substrates using NiCo solid solution and competitive reaction strategies. The graphene coating deposited on substrates with deep NiCo solid solution demonstrates superior low-friction and durability.
Article
Engineering, Multidisciplinary
Jie Shen, Lei Yong, Bo Chen, Wei Qiao, Xinyun Zhai, Shuhan Wang, Yongcan Huang, Paul K. Chu, Binsheng Yu, KelvinW. K. Yeung
Summary: Research is still exploring the contribution of sophisticated regulation of bioactive factors in the microenvironment to tissue regeneration and repair. This study established magnesium oxide homogeneously- and heterogeneously-embedded biocomposites to investigate the biological impacts resulting from different aggregation structures of bioinorganic cations. The results showed that the heterogeneous structure compromised cellular adhesion and proliferation, induced pro-inflammatory responses and affected bone regeneration.
COMPOSITES PART B-ENGINEERING
(2023)
Article
Materials Science, Coatings & Films
Yinghe Ma, Jinhui Mei, Junxin Ouyang, Peng Wu, Sai Wang, Jianguo Yang, Yanming He, Wenjian Zheng, Huaxin Li, Chuanyang Lu, Sendong Ren, Jianping Xu, Paul K. Chu
Summary: Micro-arc oxidation (MAO) is effective in enhancing the corrosion performance of Mg alloys, but the presence of micro-pores in MAO coatings can lead to corrosion. In this study, electron beam strengthening (EBS) is used to improve the microstructure of the Mg alloy, followed by the preparation of MAO coating to enhance corrosion resistance. EBS reduces the crystalline size of the Mg alloy, improves roughness, and increases corrosion resistance. The density and compactness of the MAO coating are improved by EBS, resulting in reduced porosity and enhanced corrosion resistance. A proposed corrosion mechanism is discussed.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2023)
Article
Chemistry, Applied
Zanling Huang, Shuqi Zhu, Yuan Duan, Chaoran Pi, Xuming Zhang, Abebe Reda Woldu, Jing-Xin Jian, Paul K. Chu, Qing-Xiao Tong, Liangsheng Hu, Xiangdong Yao
Summary: In this study, it was found that Ni sites act as a host to attract Fe(III) to form Fe(Ni)(III) binary centers, which promote the oxygen evolution reaction (OER) activity and stability by cyclical formation of intermediates. Additionally, other ions can also catalyze the OER process on different electrodes.
JOURNAL OF ENERGY CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Wang Guo, Miao Zhang, Zhongying Xue, Paul K. Chu, Yongfeng Mei, Ziao Tian, Zengfeng Di
Summary: The successful synthesis of wafer-scale single crystalline graphene on semiconducting Ge substrate and the characterization of its high carrier mobility have been achieved. The single crystalline graphene grown on Ge(110) exhibits a maximum carrier mobility of over 100,000 cm(2) V-1 s(-1) at low temperatures, surpassing that of graphene grown on other nonmetal substrates. The study suggests that graphene grown on Ge(110) may provide a platform for developing practical graphene-based nanodevices with high performance.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Multidisciplinary Sciences
Yuzheng Wu, Dezhi Xiao, Pei Liu, Qing Liao, Qingdong Ruan, Chao Huang, Liangliang Liu, Dan Li, Xiaolin Zhang, Wei Li, Kaiwei Tang, Zhengwei Wu, Guomin Wang, Huaiyu Wang, Paul K. Chu
Summary: Flexible wearable devices (FWDs) often lack sufficient power to eradicate bacteria, and traditional antibacterial methods are not suitable due to mechanical and electrical requirements. This study demonstrates the use of polypyrrole (PPy) nanorods on FWDs for effective antibacterial purposes. The PPy nanorod films sterilize Staphylococcus aureus and Escherichia coli by generating membrane stress and depolarization upon mild electrification (1 V). The PPy nanorod films also exhibit excellent biosafety and electrical stability.
Article
Materials Science, Biomaterials
Bo Huang, Wei Guan, Chaofeng Wang, Shuilin Wu, Zhenduo Cui, Yufeng Zheng, Zhaoyang Li, Shengli Zhu, Hui Jiang, Paul K. Chu, Xiangmei Liu
Summary: In this study, a homo-heterostructured S-Cu-FC/CuS/GO@CMC hydrogel was constructed for the first time through an in situ ionic complexation reaction. The hydrogel exhibited enhanced photocatalytic performance under 808 nm near-infrared light irradiation. The interface between S-Cu-FC/CuS and graphene oxide (GO) facilitated the fast transfer of photogenerated charges, leading to the robust sterilization ability of the hydrogel.
BIOMATERIALS SCIENCE
(2023)
Meeting Abstract
Cell & Tissue Engineering
Dorsa Dehghanbaniani, Babak Mehrjou, Paul K. Chu, Wayne Y. W. Lee, Hongkai Wu
TISSUE ENGINEERING PART A
(2023)
Meeting Abstract
Cell & Tissue Engineering
Babak Mehrjou, Dorsa Dehghan Baniani, Paul K. Chu
TISSUE ENGINEERING PART A
(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)
