Article
Materials Science, Ceramics
Jun-Pei Chen, Ying-Shou Ho, Mao-Sung Wu
Summary: Cobalt oxide nanobundle arrays were grown on a stainless steel wire mesh through hydrothermal synthesis and heat treatment to form a supporting platform for manganese oxide deposition, resulting in a CoO@MnO2 core-shell electrode. This electrode showed improved supercapacitive behavior compared to pristine MnO2, with higher charge-storage capacity and reduced transfer resistance.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Jong Hyeong Lim, Jong Ho Won, Ik-Soo Kim, Mun Kyoung Kim, Hyeokrae Cho, Sang-Mo Koo, Chulhwan Park, Hiesang Sohn, Hyung Mo Jeong, Jong-Min Oh, Weon Ho Shin
Summary: This study developed a homogeneous MnO2 electrode structure with uniformly distributed pores and direct contact between particles, improving ionic and electron transport. The electrodes showed considerably lower charge transfer resistance and double layer capacitance compared to paste-type electrodes, maintaining a high specific capacitance even at high mass loading.
SCRIPTA MATERIALIA
(2022)
Article
Energy & Fuels
Anandhu Thejas Prasannakumar, R. Rohith, Jayesh Cherusseri, Ranjini R. Mohan, Sreekanth J. Varma
Summary: In this study, a two-step hydrothermal synthesis of nanocrystalline Ni3S2/MnO2 hybrids was reported and used as electrodes for supercapacitors. The incorporation of MnO2 improved the surface area of the electrode, and the synergistic effect of the Ni3S2/MnO2 nanostructured hybrid contributed to the best electrochemical performance, including high gravimetric capacitance and excellent cycling stability.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Hussein O. Badr, Francisco Lagunas, Daniel E. Autrey, Jacob Cope, Takayuki Kono, Takeshi Torita, Robert F. Klie, Yong-Jie Hu, Michel W. Barsoum
Summary: We synthesized 1D TiO2-based nanofilaments by reacting Ti-containing precursors with quaternary ammonium hydroxides at near-ambient conditions. The structure was previously believed to be anatase-based, but we now conclude that it is actually a 1D titania lepidocrocite-based structure. The NFs grow along [100] and tend to self-assemble/stack in two directions. The band gap is not affected by the nature of the cations surrounding the NFs.
Article
Energy & Fuels
Suman Kundu, Giridhar U. Kulkarni
Summary: This study reports the fabrication of high-performance supercapacitors using frosted glass as a template for electrode growth. The method allows for easy and low-cost fabrication of electrodes, and the resulting supercapacitors exhibit excellent electrochemical properties and flexibility.
Article
Chemistry, Physical
Jinsong Li, Jing Ao, Chongxia Zhong, Tan Yin
Summary: Researchers have developed a TiO2-CNT supercapacitor with high energy density and specific capacitance. The device shows excellent cyclic stability and low leakage current, making it suitable for power supply of portable electronics in the future.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Qi Jin, Wei Wen, Zi-Xuan Wang, Run-Hui Wang, Shilie Zheng, Zhizhen Ye, Jin-Ming Wu
Summary: Nanostructured composite oxides, such as nest-like MnO2/TiO2, show superior sensing performance for triethylamine, highlighting the importance of composition and nanostructure modulation in gas sensors. The presence of heterojunctions and homojunctions between different oxide components further enhance the sensor response towards toxic volatile organic compounds.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Biochemistry & Molecular Biology
Yunzhu Chen, Hongjuan Sun, Tongjiang Peng, Tongxi Gao, Wenjin Ding, Tao Hui, Lei Jiang
Summary: This study utilized the catalytic effect of manganese dioxide on hydrogen peroxide to improve the swelling efficiency of vermiculite. Through characterization tests, it was found that the expansion time was shortened to 40 minutes and the adsorption efficiency of Cd was increased by 30%. This study provides a new theoretical guidance for improving the efficiency of vermiculite stripping by hydrogen peroxide.
Article
Agricultural Engineering
Haicheng Tan, Yukang Fan, Xiaowei Pan, Senlin Chen, Hong Tao, Dongjie Yang, Wenli Zhang, Zhixian Li
Summary: The high-value utilization of agricultural and forestry waste can help resolve the energy crisis. This study focuses on using tobacco waste biomass to manufacture high-performance supercapacitor electrode materials. By using calcium carbonate and potassium oxalate as activating agents, hierarchical porous carbon derived from tobacco stems was prepared. The resulting carbon material exhibited excellent specific capacitance, energy density, and cycling stability, indicating its potential as an electrode material for supercapacitors. The gas exfoliation of calcium carbonate and potassium oxalate was found to contribute to the formation of hierarchical porous structures.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Materials Science, Ceramics
Hilal Pecenek, Sevda Yetiman, Fatma Kilic Dokan, M. Serdar Onses, Erkan Yilmaz, Ertugrul Sahmetlioglu
Summary: This study investigates the effect of carbon nanomaterials and MXene addition on MnO2 based supercapacitor electrodes, and finds that MXene based composite materials exhibit the highest specific capacitance and exceptional cycling efficiency. The favorable interaction between MnO2 and nanoscale materials enhances conductivity and surface area, leading to superior supercapacitor efficiency.
CERAMICS INTERNATIONAL
(2022)
Article
Polymer Science
Iryna Kovinchuk, Nadiia Haiuk, Giuseppe Lazzara, Giuseppe Cavallaro, Georgii Sokolsky
Summary: The photocatalytic degradation of low-density polyethylene (PE) films with titanium and manganese dioxide nanoparticles was investigated. Composite PE films with different photocatalysts were prepared and subjected to UV irradiation. Tests and measurements on the PE films were conducted to evaluate the effects of the nanoparticles on the degradation and thermal behavior of PE. The results showed the coupling effects of titanium and manganese dioxide nanoparticles on PE degradation, and the influence of the nanoparticles on the tensile properties and wettability of the films.
POLYMER DEGRADATION AND STABILITY
(2023)
Article
Chemistry, Multidisciplinary
Yuto Katsuyama, Nagihiro Haba, Hiroaki Kobayashi, Kazuyuki Iwase, Akira Kudo, Itaru Honma, Richard B. Kaner
Summary: A 3D-hierarchical carbon lattice with ordered macropores and uniform nanopores is prepared using a cheap 3D printer and CO2 activation process. It exhibits a high areal capacitance and is further improved by electrochemically depositing manganese oxide. A high-performance asymmetric supercapacitor is then fabricated, achieving one of the highest reported areal energy and power densities.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Applied
Yingkun Song, Min Jiang, Lijuan Zhou, Hongsheng Yang, Jianming Zhang
Summary: In this study, CNC/manganese dioxide/titanium dioxide porous microspheres were prepared and demonstrated high degradation efficiency and adsorption performance in wastewater treatment. The synergistic effect of two transition metal oxides enabled the porous microspheres to achieve a degradation efficiency of 97.0% for methylene blue, with easy recovery and rapid regeneration. Furthermore, the maximum removal of dyes by this material reached up to 310.2 mg/g, significantly higher than most CNC-based adsorption materials.
CARBOHYDRATE POLYMERS
(2022)
Article
Materials Science, Multidisciplinary
Gaini Zhang, Jianhua Zhang, Huijuan Yang, Xifei Li
Summary: The porous MnO2 nanosheets (P-MnO2) prepared through an in-situ redox reaction exhibit a high micro/mesoporous structure providing a large ion-accessible surface area for efficient charge storage. The designed nanopores facilitate electrolyte ions diffusion across the 2D MnO2 nanosheets, resulting in higher specific capacitance and desirable rate capability compared to pristine MnO2.
Article
Chemistry, Physical
Fatemeh Mahdi, Mehran Javanbakht, Saeed Shahrokhian
Summary: A pseudocapacitive electrode based on mesoporous manganese dioxide was fabricated using the anodic pulse electrodeposition method. The effects of pulse parameters on the physicochemical properties of MnO2 were studied, leading to the identification of optimal pulse conditions in the best sample. The symmetric supercapacitor assembled with the best sample showed good cyclic stability and pseudocapacitive performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Yachao Xu, Qi Liu, Jiahui Zhu, Hongsen Zhang, Jingyuan Liu, Rongrong Chen, Jing Yu, Ying Li, Jun Wang
Summary: A binary composite material (B-ZnO/ZnIn2S4) was synthesized for efficient uranium extraction from seawater and resistance to biofouling. The chemical reduction reaction of uranium occurred on the surface and interface of the composite material. The material showed strong light-induced reduction ability and antibiological fouling activity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Dingwen Shi, Hongsen Zhang, Haining Zhang, Ling Li, Suping Li, Yanbing Zhao, Chuansheng Zheng, Guangjun Nie, Xiangliang Yang
Summary: In this study, TF-Nanogels, formed by entrapping tTF-pHLIPs into PIB nanogels, exhibited a synergistic effect, enhancing the anti-tumor efficacy of trans-arterial embolization.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Huiquan Gu, Jing Yu, Hongsen Zhang, Gaohui Sun, Rumin Li, Peili Liu, Ying Li, Jun Wang
Summary: This study employed molecular dynamics simulation to explore the influence of zwitterionic compounds on the surface of natural hemp fibers in seawater. The results showed that the modified fibers exhibited excellent fouling resistance and high U(VI) adsorption capacity. This research provides a theory-guided method for achieving a competitive balance between fouling resistance and seawater U(VI) adsorption on natural materials.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biotechnology & Applied Microbiology
Hongsen Zhang, Zhenya Li, Hongfei Zhang, Yan Li, Fengqin Wang, Hui Xie, Lijuan Su, Andong Song
Summary: This study revealed the mechanisms of biodegradation of gramineous lignocellulose in Locusta migratoria manilensis, emphasizing that the foregut of the locust was the main degradation area, while the midgut played a crucial role in nutrient absorption. These findings provide valuable insights for the development of enzymatic pretreatment processes mimicking the locust digestive system for converting lignocellulosic biomass to fuels and chemicals.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Yachao Xu, Jing Yu, Jiahui Zhu, Qi Liu, Hongsen Zhang, Jingyuan Liu, Rongrong Chen, Ying Li, Jun Wang
Summary: This study proposes a local conjugation domain (LCD) structure to enhance the surface dynamics of cyclized polyacrylonitrile (CPAN) for the extraction of uranium (U(VI)) from seawater. By hydrolyzing the cyano groups that are not involved in conjugation, cyclized polyacrylonitrile amideoxime (CPAO) can effectively capture U(VI) in seawater.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Environmental Sciences
Dandan Zhao, Hui Xie, Lei Gao, Jian Zhang, Yan Li, Guotao Mao, Hongsen Zhang, Fengqin Wang, Su Shiung Lam, Andong Song
Summary: Yellow mealworms show good bioconversion performance and metabolism of AFB1 in grain contamination management. They can effectively degrade AFB1 with no significant impact on survival, development, and nutrition content. The metabolites of AFB1 have lower toxicity.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2022)
Article
Chemistry, Physical
Ning Liu, Rumin Li, Jiahui Zhu, Qi Liu, Rongrong Chen, Jing Yu, Ying Li, Hongsen Zhang, Jun Wang
Summary: ZnS/WO3 composites were prepared by coprecipitation method to construct a high-efficiency Z-scheme heterojunction photocatalyst for the photocatalytic reduction of U(VI). The composites showed improved visible light absorption, photoreduction ability, and photocatalytic activity compared to WO3 and ZnS. Under visible light irradiation, the ZnS/WO3 composites exhibited higher photoreduction performance of U(VI), with a maximum extraction capacity of 1.52 g g-1. Moreover, the composites showed a high uranium reduction ability under natural light, with a removal efficiency of 93.4%.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Engineering, Chemical
Jiaqi Yu, Jun Wang, Jiahui Zhu, Ying Li, Qi Liu, Jing Yu, Rumin Li, Peili Liu, Hongsen Zhang
Summary: Chitosan-based hydrogels have been extensively studied as adsorption materials due to their abundant, biodegradable, inexpensive features and rich amino and hydroxyl groups. In this work, the structure of chitosan hydrogel and its adsorption performance towards uranyl species were comprehensively investigated. The results show that chitosan hydrogel exhibits excellent adsorption performance for low-concentration uranyl species, with a removal efficiency of over 99%. The adsorption mechanisms for different uranyl species were also explored.
Article
Computer Science, Information Systems
Li Ping Qian, Hongsen Zhang, Qian Wang, Yuan Wu, Bin Lin
Summary: This article explores the integration of Maritime Internet of Things (M-IoT) technology and unmanned aerial/surface vehicles (UAVs/USVs) for navigational information in intelligent ocean systems. They focus on optimizing the energy consumption by jointly optimizing the workload, transmit power, computation resource allocation, and UAV trajectory. They propose a two-layered algorithm that uses deep reinforcement learning (DRL) and the Lagrangian multiplier method to efficiently solve the problem.
IEEE INTERNET OF THINGS JOURNAL
(2023)
Article
Engineering, Chemical
Jiaqi Yu, Hongsen Zhang, Qi Liu, Jing Yu, Jiahui Zhu, Ying Li, Rumin Li, Jun Wang
Summary: By electrostatic assembly, porous few-layer C3N4 (PFC) was combined with Ti3C2 to form a 2D/2D heterojunction structure (TFC), and the TFC-3 composite exhibited remarkable uranium extraction performance, which was 4.9 times higher than bulk C3N4, and had good selectivity and stability. This makes TFC-3 a promising material for uranium extraction from seawater.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Yachao Xu, Qi Liu, Jiahui Zhu, Hongsen Zhang, Jingyuan Liu, Rongrong Chen, Jing Yu, Gaohui Sun, Jun Wang
Summary: Polydopamine porous microspheres were synthesized on the surface of cyclized polyacrylonitrile amidoxime fibers, exhibiting high adsorption performance, selectivity, stability, and evaporation rate. It provides a solution to the scarcity of water and energy.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biotechnology & Applied Microbiology
Hongsen Zhang, Jiahui Jiang, Conghui Quan, Guizhong Zhao, Guotao Mao, Hui Xie, Fengqin Wang, Zhimin Wang, Jian Zhang, Pingping Zhou, Andong Song
Summary: The aldehyde dehydrogenase gene W826-RS0111485 in Gluconobacter oxydans DSM2003 plays a crucial role in the conversion of aldehyde inhibitors. The enzyme showed the highest oxidation activity to furfural among several aldehyde inhibitors, and NADP was determined to be the most suitable cofactor. The recombinant E. coli containing the W826-RS0111485 gene successfully converted furfural to furoic acid within 8 hours, demonstrating its importance in furfural detoxification.
FERMENTATION-BASEL
(2023)
Article
Chemistry, Physical
Yachao Xu, Jiahui Zhu, Hongsen Zhang, Qi Liu, Jingyuan Liu, Rongrong Chen, Jing Yu, Jun Wang
Summary: A bionic thermal insulation foam was designed to efficiently extract uranium from natural seawater. It exhibited high anti-biofouling activity and generated a temperature gradient in a liquid environment, promoting the migration and aggregation of high-energy photogenerated electrons for efficient capture of U(vi) species in extreme conditions. The material maintained a high U(vi) adsorption capacity at high temperatures and in a slightly alkaline environment, achieving a significantly improved extraction capacity compared to conventional materials.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Mathematics, Interdisciplinary Applications
Peng Zhang, Xu Han, Jinjun Guo, Hongsen Zhang
Summary: Compression and mercury intrusion porosimetry tests were conducted to analyze the effect of MSWIFA content on the mechanical performance and pore structure of geopolymer mortar. The results showed that the compressive strength of the mortar decreased while the total pore volume and specific surface area increased with the increase in MSWIFA content. There were changes in the pore diameter distribution, with harmless pores being refined. The pore structure exhibited scale-dependent fractal characteristics. The surface fractal dimension proved to be a comprehensive parameter correlated with specific surface area, pore volume, and compressive strength.
FRACTAL AND FRACTIONAL
(2022)
Article
Construction & Building Technology
Chuantong Wang, Peng Zhang, Jinjun Guo, Hongsen Zhang, Tingya Wang
Summary: The addition of MSWIFA to geopolymer composites affects the pore structure and microstructure, but can effectively immobilize heavy metal ions. The addition of coal fly ash degrades the pore performance, but within a certain range, it can improve the pore distribution. Different proportions of MSWIFA show similar reactivity and hydration product composition in geopolymer paste.
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)
