Article
Chemistry, Physical
Authit Phakkhawan, Pitphichaya Suksangrat, Pornjuk Srepusharawoot, Sukhum Ruangchai, Pawinee Klangtakai, Samuk Pimanpang, Vittaya Amornkitbamrung
Summary: A solvothermal technique was used to synthesize nine different morphologies of ferric oxide. Among them, the flower-shaped ferric oxide exhibited the highest specific capacitance, pore volume, and specific surface area. The flower-shaped ferric oxide film maintained a relatively high performance after 1000 cycles. Supercapacitor coin cells constructed from the flower-shaped ferric oxide anode and MnO2 cathode showed excellent energy density and power density.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Kamran Ahmad, Muhammad Bilal, Muhammad Asim Rasheed, Zahoor Ahmad, Attaulllah Shah, Yaqoob Khan, Abdul Waheed, Abdul Mateen Qasim
Summary: Titania nanotubes (TNTs) were synthesized by anodization and electrochemically reduced in this study. The reduction treatment efficiently removed defects in TNTs and could be used for solar cell application under reduced/absence of oxygen conditions.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Chemistry, Physical
Ye Cheng, Junzheng Gao, Qiwu Shi, Zhichao Li, Wanxia Huang
Summary: Black TiO2 is a promising photocatalyst due to its ability to address the limitations of TiO2, such as low visible light absorption, insufficient solar-light utilization, and slow carrier separation. Researchers have proposed a convenient method to prepare Au-loaded black TiO2 nanotubes, which significantly enhance their visible light catalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Mamta Sham Lal, Rajashekar Badam, Noriyoshi Matsumi, Sundara Ramaprabhu
Summary: The development of a composite-type hybrid supercapacitor with high capacitance, specific energy, and long cycle life was achieved by using SWCNTs/TiO2 nanocomposite as electrodes and PVA/H2SO4 gel electrolyte. This work demonstrates that the hybrid electrochemical behavior of SWCNTs/TiO2 nanocomposite improves the overall supercapacitive performance, offering a promising route to develop high performance hybrid supercapacitors.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Electrochemistry
Sunmi Im, Sarwar Saad, Yiseul Park
Summary: In this study, the electrochemical reduction of oxalic acid was efficiently achieved using TiO2 nanotubes as electrodes. Complete conversion of oxalic acid and high selectivity of glycolic acid formation were achieved by controlling the length of the nanotubes.
ELECTROCHEMISTRY COMMUNICATIONS
(2022)
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
Diana Maria Vranceanu, Elena Ungureanu, Ionut Cornel Ionescu, Anca Constantina Parau, Adrian Emil Kiss, Alina Vladescu, Cosmin Mihai Cotrut
Summary: The current research aims to biofunctionalize pure titanium substrate with titania nanotubes and Zn doped hydroxyapatite-based coatings. The addition of Zn enhances the properties of hydroxyapatite, and the concentration of Zn can be modulated to achieve coatings with tunable features.
Article
Engineering, Multidisciplinary
Na Wang, Renrong Zheng, Tianxi Chi, Tongxin Jiang, Zan Ding, Xin Li, Shichao Liu, Lifeng Zhang, Haisheng San
Summary: Highly efficient direct energy conversion utilizing the betavoltaic effect is a promising alternative for self-generating power cells. This study demonstrates a betavoltaic-powered electrochemical cell using TiO2 nanotube arrays and carbon nanotubes, showing high energy conversion efficiency and strong electrochemical reaction capabilities.
COMPOSITES PART B-ENGINEERING
(2022)
Article
Chemistry, Physical
Elham Montakhab, Fereshteh Rashchi, Saeed Sheibani
Summary: The study investigated the photocatalytic activity of modified TiO2 nanotubes (TNTs) for water purification. Three modification methods including Ag nanoparticles (NPs) decoration (TNT-Ag), electrochemical reduction of the TNTs (TNT-H), and a simultaneous combination of these two methods (TNT-Ag-H) were studied. It was found that the combined method resulted in finer Ag NPs with better distribution due to the preferred sites for Ag nucleation provided by the defects formed during electrochemical reduction. The modified TNTs in the TNT-Ag-H sample showed increased SPR and absorption in the visible light region, and exhibited higher photocatalytic performance compared to unmodified TNT samples.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
R. Mendoza, M. Al-Sardar, A. Oliva, G. Robledo-Trujillo, V Rodriguez-Gonzalez, A. Zakhidov, J. Oliva
Summary: This study reports the improvement of flexible carbon nanotube-based supercapacitors using TiNiW nanoparticles, demonstrating significant enhancement in capacitance and energy density after adding TiNiW NPs. The addition of TiNiW NPs also reduced the electrical resistance at the electrode/electrolyte interface to facilitate ion diffusion and storage, paving the way for portable or wearable applications of flexible SCs.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Engineering, Environmental
D. Zabelin, A. Zabelina, E. Miliutina, A. Trelin, R. Elashnikov, D. Nazarov, M. Maximov, Y. Kalachyova, P. Sajdl, J. Lancok, M. Vondracek, V. Svorcik, O. Lyutakov
Summary: Titanium oxide is commonly used as an effective catalyst for photo-electrochemical water splitting, but its wide bandgap limits the utilization of visible and near-infrared light. The photosensitization of titanium oxide with plasmonic nanostructures has been proposed as a solution. In this work, a plasmon-based titanium oxide photosensitization method using a gold grating is presented. The gold grating supports the excitation and propagation of surface plasmon polariton wave, resulting in the activation of titanium oxide. Experimental results demonstrate that this structure enables efficient photo-electrochemical water splitting and hydrogen production under near-infrared light irradiation.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Inorganic & Nuclear
K. M. Ajay, M. N. Dinesh, Gopalakrishna Byatarayappa, M. G. Radhika, N. Kathyayini, H. Vijeth
Summary: The comparative study of electrode materials for supercapacitors showed that the Polyaniline-OPAC nanocomposite electrode exhibited higher specific capacitance and better cycling stability compared to the OPAC electrode.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Arkady N. Redkin, Alena A. Mitina, Eugene E. Yakimov, Evgeny N. Kabachkov
Summary: The study utilized a novel CVD technique to directly grow multiwall carbon nanotubes on aluminum foil, and achieved a significant increase in the specific capacity of MWCNTs through simple electrochemical oxidation, further improving the performance of MWCNT/Al electrodes. The modified electrodes showed excellent stability and capacitance, making them a promising electrode material for supercapacitors.
Article
Multidisciplinary Sciences
Agnieszka Hryniewicka, Joanna Breczko, Gabriela Siemiaszko, Anthony N. Papathanassiou, Kinga Gora-Marek, Karolina A. Tarach, Krzysztof Brzezinski, Anna Ilnicka, Artur P. Terzyk, Karolina H. Markiewicz, Luis Echegoyen, Marta E. Plonska-Brzezinska
Summary: Covalent triazine-based frameworks have received significant attention recently due to their high surface area and excellent thermal and electrochemical stabilities. This study demonstrates that immobilizing triazine-based structures on carbon nanostructures results in the formation of micro- and mesopores in a three-dimensional manner. The combination of spherical carbon nanostructures and the triazine framework leads to a material with unique physicochemical properties and the highest specific capacitance value in aqueous acidic solutions. This hybrid system shows promise for electrochemical applications.
SCIENTIFIC REPORTS
(2023)
Article
Materials Science, Multidisciplinary
Song Zhiyuan, Li Xianrong, Zhuang Changwan, Wei Aili, Zhang Wanggang, Liu Yi-ming
Summary: The study demonstrates that the improved electrochemical hydrogenation method can enhance the specific capacitance of TiO2 nanotube arrays. The capacitance of the nanotubes is not only related to the tube length but also influenced by tube diameter. Furthermore, nanotubes anodized for 2 hours show the best performance.
RARE METAL MATERIALS AND ENGINEERING
(2021)
Review
Physics, Multidisciplinary
Guohua Liu, Jinliang Xu, Ting Chen, Kaiying Wang
Summary: Plasmonics offers unprecedented control over light and has great potential for applications in solar energy. The surface plasmon resonance is responsible for enhanced light scattering and absorption. Plasmon excitations in nanostructures can be tuned to control hot-carrier emission and release heat at the nanoscale. Spectrally and thermally engineered plasmonic nanomaterials attract considerable attention for solar energy applications due to their distinct thermoplasmonic properties.
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
(2022)
Article
Engineering, Chemical
Shikun Li, Bin Liu, Xiao Jia, Min Xu, Ruoyu Zong, Xunfeng Li, Guohua Liu, Xiulan Huai
Summary: Understanding the relationship between the physical properties of composite components and thermal conductivity is crucial for improving overall heat-dissipation performance. A numerical simulation was conducted to investigate the anisotropic thermal conductivity and heat flux distributions of h-BN/nanofiber composite films. Factors such as the intrinsic thermal conductivity of the matrix and filler, filler geometry and orientation, and interface thermal resistance were considered. The study found that increasing the intrinsic thermal conductivity of the matrix and tuning the interface thermal resistance could enhance the thermal conductivity, while the contributions from increasing filler conductivity and length were limited.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Ke Zhao, Jiemin Han, Yifei Ma, Zhaomin Tong, Jonghwan Suhr, Mei Wang, Liantuan Xiao, Suotang Jia, Xuyuan Chen
Summary: In this study, a flexible capacitive pressure sensor with high sensitivity was fabricated using three-dimensional vertical graphene as the electrode and micro-pyramidal polydimethylsiloxane as the dielectric layer. Engineering the morphology, size, and interval of the micro-pyramids in the dielectric layer significantly boosted the sensor sensitivity. Finite element analysis revealed that the micro-pyramid structure in the dielectric layer generated a significant deformation effect under pressure, thereby improving the sensing properties. The sensor showed great potential in various applications, including human motion detection and human-machine interaction.
Article
Nanoscience & Nanotechnology
Zhou Zhao, Zengxing Zhang, Junmin Jing, Rui Gao, Zhiwei Liao, Wenjun Zhang, Guohua Liu, Yonghua Wang, Kaiying Wang, Chenyang Xue
Summary: Black silicon, as a representative of micro/nano-textured silicon, has excellent light absorption properties and is gradually replacing standard silicon in photoelectric devices. This article summarizes recent theoretical and experimental breakthroughs in near-infrared and ultraviolet detection using black silicon. The application of black silicon in infrared detection is discussed, including the use of element doping, localized surface plasmon resonance effect, and heterojunction formation. Additionally, the application of black silicon in ultraviolet detection through induced junction and self-built electric field is introduced. The growing potential of black silicon in near-infrared and ultraviolet detection applications, such as infrared night vision imaging and national defense early warning, is further discussed.
Article
Materials Science, Multidisciplinary
Chenggen Wu, Lei Han, Yupeng Dong, Miaomiao Guo, Rui Wang, Jiawei Si
Summary: With the global spread of infectious diseases, health monitoring has become increasingly important for disease prevention. Contact health monitoring presents a risk of disease transmission between patients and medical workers, leading to increased attention on contactless health monitoring. The current challenge lies in solving the need for a flexible structure and the ability to detect multiple parameters wirelessly. Therefore, we propose a wireless battery-free flexible sensing system for continuous and contactless wearable health monitoring. The system consists of three sensing modules integrated with inductance-capacitance resonators for monitoring temperature, humidity, and pressure. The all-flexible structure meets the requirements for contactless health monitoring and the system shows potential in obtaining physiological status for epidemic prevention and control.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Qiannan Wu, Honglei Guo, Qiuhui Liu, Guangzhou Zhu, Junqiang Wang, Yonghong Cao, Mengwei Li
Summary: In this paper, a novel RF MEMS switch with a straight top electrode is designed and optimized using HFSS and COMSOL software. The switch's insertion loss, isolation, actuator voltage, and stress distribution are simultaneously explored and optimized, considering both its RF and mechanical properties. A switch is fabricated based on the optimized results using a micromachining process compatible with conventional IC processes. The RF performance of the switch, including isolation, actuation voltage, and switching time, is measured and the switch shows promising results in the DC to 18 GHz range.
NANOTECHNOLOGY AND PRECISION ENGINEERING
(2023)
Review
Engineering, Environmental
Zubair Masaud, Guohua Liu, Lars Eric Roseng, Kaiying Wang
Summary: Pulsed electrocatalysis presents a promising alternative for achieving higher process control, enhanced efficiency, and improved selectivity in electrochemical processes. This article provides a comprehensive overview of pulsed electrocatalysis, including mechanistic details, process parameter optimization, and demonstrations of its potential in cutting-edge applications.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Engineering, Environmental
Tao Feng, Guohua Liu, Gang Li, Yan Li, Jianguo Liang, Kaiying Wang
Summary: Supercapacitors are a promising energy storage solution in the face of increasing demand for electrification. This review summarizes recent progress on iron-based materials in supercapacitors, focusing on their applications and techniques for enhancing performance, as well as future challenges.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Zheng Liu, Ting Chen, Guohua Liu
Summary: This study establishes a coupled ion transport model to investigate the effects of surface and space charges on energy conversion in nanochannels. It is found that the coupled charges enhance the energy conversion performance, and this enhancement can be further increased by adjusting the density and thickness of the polyelectrolyte layer. The presence of space charges introduces frictional resistance, but it is insignificant in concentration-gradient energy conversion.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Yi Zhang, Guoli Zhang, Juncheng Wu, Jiangyong Yu, Gang Li, Taotao Guan, Kaiying Wang
Summary: Porous carbon nanosheets (PCNs) were obtained by regulating the abundance of the dangling-bonds grafted on the CTP molecules. The PCNs showed high specific capacitance and good electrochemical performance due to their large specific surface area, suitable pore structure, and good two-dimensional structure. Assembled symmetrical EDLCs using K+ DES electrolyte exhibited satisfactory energy density and could work in a wide temperature range from -40°C to 75°C, opening up a new way for large-scale preparation of electrode materials suitable for ultra-low temperature capacitors.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Xiaohui Yan, Gang Li, Kai Shen, Congwei Wang, Kaiying Wang
Summary: Nanostructured hematite shows promise as a semiconductor for PEC water oxidation but suffers from inadequate charge separation and sluggish kinetics. In this study, a nanotubular Fe2O3/Fe3O4 p-n heterojunction with dual IEFs is prepared, which promotes charge carrier separation/migration and enhances PEC performance. The addition of In2O3 clusters forms a second IEF and further improves the hole-collection efficiency. The composite photoanode achieves a state-of-the-art current density and a superior photon-to-current efficiency, making it a potential candidate for efficient PEC catalysts.
Article
Chemistry, Multidisciplinary
Hao Huang, Kaiying Wang
Summary: Conductive metal-organic frameworks exhibit excellent single-atom electrocatalytic activities, but their application is limited by the fragility of the coordinated frameworks. This study presents a metal-covalent organic framework strategy to construct a catalyst for nitrate reduction, which provides abundant metal sites and a reasonable platform for studying the catalytic mechanism of single-metal atoms.
Article
Chemistry, Multidisciplinary
Nan Zhang, Gang Li, Zhichao Yu, Zhenguo Tang, Xiaoyan Liu, Congwei Wang, Kaiying Wang
Summary: This work demonstrates the tuning of interfacial electronic properties by spontaneous photodeposition of metallic cluster co-catalyst on edge active sites, leading to enhanced charge carrier separation and surface redox reactions, thus resulting in superior photocatalytic performance.
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)