Article
Materials Science, Multidisciplinary
Majid Talebi, Mohammad Mahdi Ahadian, Saeed Shahrokhian
Summary: A simple, low-cost and scalable method has been proposed for the preparation of binder-free electrodes of reduced graphene oxide (RGO) on Ni foam. The 3D porous assembly of RGO on Ni substrate created using this method facilitates fast ion diffusion and rapid electron transport. These electrodes show promising electrochemical performance for both supercapacitive energy storage applications and capacitive deionization (CDI) technology.
DIAMOND AND RELATED MATERIALS
(2021)
Article
Materials Science, Ceramics
Philips O. Agboola, Imran Shakir, Zeyad Ammar Almutairi, Sahar Saad Shar
Summary: In this study, pure and Cu doped CoS2 nanoparticles were successfully synthesized on Nickel foam using a one-step hydrothermal method. The physiochemical properties of Cu.CoS2 were compared to pure CoS2 using various characterization techniques. Doping with Cu ions significantly enhanced the conductivity of CoS2, and Cu.CoS2 exhibited excellent electrochemical performance and cyclic stability in supercapacitors.
CERAMICS INTERNATIONAL
(2022)
Article
Electrochemistry
Lichchhavi, Sarvesh Kumar, Alok Kumar Srivastava, Shikhar Krishn Jha
Summary: Researchers have discovered a new intercalation mechanism for pseudocapacitors, using 2-D orthorhombic Bi2S3 nanomaterials on nickel foam, which achieves high energy and power densities for supercapattery applications.
ELECTROCHIMICA ACTA
(2023)
Article
Electrochemistry
Jin Chang, Xindong Du, Jing Feng
Summary: In this study, Co doped Ni(OH)2 and NiOOH array structure were synthesized using a hydrothermal method. The use of vertical hanging Ni foam provided sufficient reaction sites to ensure the full growth of the array structure, resulting in a large mass loading of active materials. The presence of embedded CH3COO- and strong electron exchange between Ni(OH)2 or NiOOH and Ni facilitated efficient ion and electron transport, leading to improved capacitive and rate performance of the material.
ELECTROCHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Tamene Tamiru Debelo, Masaki Ujihara
Summary: Nanocomposite electrodes consisting of manganese oxides and polypyrrole were synthesized through a two-step electrochemical process. The nanocomposite electrodes exhibited high specific capacitance and stability, showing promising electrochemical performance.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Hilal Pecenek, Fatma Kilic Dokan, M. Serdar Onses, Erkan Yilmaz, Ertugrul Sahmetlioglu
Summary: This study reports a compressible supercapacitor electrode with high performance and compressibility, suitable for flexible electronics. The electrode is prepared by coating NiO/MnO2/CNT composite onto a sponge, demonstrating excellent cycling stability and mechanical stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Energy & Fuels
Yu Jun Yang, Mengxiao Liu, Chenjia Jiang, Panxiang Yang, Ningya Wang, Songyang Chen, Yao Cheng
Summary: The Ni-HCF/rGO nanocomposite was successfully synthesized on Ni foam using a one-step hydrothermal method, with Ni foam serving as both the current collector and nickel source. The nanocube arrays exhibited high capacity, long cycle life, and good rate capability as a supercapacitor electrode in 2.0 M KOH aqueous solution. An asymmetrical supercapacitor device was assembled with Ni-HCF/rGO/Ni foam and activated carbon, showing promising potential for practical applications with a maximum energy density of 4.38 W h m(-2) at power density of 34 W m(-2).
JOURNAL OF ENERGY STORAGE
(2021)
Article
Nanoscience & Nanotechnology
Xu Meng, Tao Liu, Meng Qin, Zigeng Liu, Wei Wang
Summary: Reasonable design and preparation of low-cost and stable oxygen reduction reaction catalysts are crucial for the development of fuel cells and metal-air batteries. A 3D porous nanosheet catalyst composed of metal manganese covered with MnO2 nanofilms was synthesized and showed excellent stability and a half-wave potential of 0.86 V.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Arkady N. Redkin, Alena A. Mitina, Eugene E. Yakimov
Summary: Significant progress has been made in the performance of supercapacitors through the development of composite electrodes that combine various charge storage mechanisms. This study proposes a new method for preparing composite binder-free MnO2/MWCNT/Al electrodes for supercapacitors, which demonstrated excellent charge/discharge characteristics and stability to multiple cycles.
Article
Chemistry, Multidisciplinary
Mustafa Aghazadeh, Hamzeh Forati Rad, Ramin Cheraghali
Summary: An outstanding nano-structured composite electrode was fabricated by co-depositing Co(OH)(2) nanoplates and porous reduced GO nanosheets onto Ni foam. The resulting composite electrode exhibited a high surface area, large pore size, and improved energy storage and power capabilities, making it a promising candidate for supercapacitor applications.
Article
Engineering, Electrical & Electronic
Mustafa Aghazadeh, Hamzeh Foratirad
Summary: In this study, a composite of porous graphene (PG) and functionalized multiwalled carbon nanotubes (f-MWNTs) was synthesized through catalytic chemical vapor deposition (CCVD) followed by hydrothermal procedure. Ni foam (NF) was used to embed the prepared f-MWNTs/PG composite via direct electrophoretic deposition, and Ni(OH)(2) nanoplates were deposited on the surfaces of both components through electrochemical deposition. The resulting Ni(OH)(2)@f-MWNTs-PG deposit exhibited excellent charge storage ability and cycling stability, making it a promising electrode material for supercapacitors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Electrochemistry
Yu Wang, Xingbao Zhu, Jin Qin, Zhihong Wang, Yuanguo Wu, Zining Man, Chengyin Yuan, Zhe Lu
Summary: A binder-free, low-cost, high performance cathode for lithium-oxygen batteries based on Ni(OH)(2) nanoflakes array on Ni foam was reported, showing a high discharge capacity and stable cycling voltage profile. The highly organized structure of Ni(OH)(2) nanoflakes array provides a more uniform distribution of catalysts and discharge products, resulting in improved performance compared to traditional electrodes.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
Mao Shen, Lei Chen, Shibin Ren, Yuxiang Chen, Wei Li, Rui Zheng, Yongqiang Lin, Deman Han
Summary: This study reports the synthesis of 3D CuO/PPy heterojunction nanowire arrays on Cu foam and demonstrates their superior performance as supercapacitor electrodes. By optimizing preparation conditions and electrodeposition time, excellent capacitance, cycling stability, and potential applications in asymmetric supercapacitors have been achieved.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Energy & Fuels
Ji Hoon Kim, Yong-il Ko, Seo Yun Lee, Yun Seon Lee, Su Kyung Kim, Yoong Ahm Kim, Cheol-Min Yang
Summary: This paper reports a novel composite of graphene oxide (GO) and single-walled carbon nanohorns (SWCNHs) as an effective substrate for Ni-Co layered double hydroxides (LDH) coatings. The composite exhibited excellent electrochemical characteristics and facile synthesis, making it a promising candidate for pseudocapacitor applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Haicheng Xuan, Rui Wang, Jing Yang, Guohong Zhang, Xiaohong Liang, Yuping Li, Zhigao Xie, Peide Han
Summary: Current research focuses on the preparation and application of complex hierarchical nanostructure composites with enhanced electrochemical properties. The synthesized NiMoO4@Co3O4-5H composite nanoarrays show excellent specific capacitance and rate performance, making them a potential electrode material for energy storage devices.
JOURNAL OF MATERIALS SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Nan Jiang, Zhiwei Zhu, Wenjie Xue, Bao Yu Xia, Bo You
Summary: This review discusses the ongoing development of OER electrocatalysts under near pH-neutral CO2-saturated solutions, emphasizing the need for high-performance and cost-effective catalysts suitable for CO2RR conditions. It highlights the importance of exploring new opportunities in this field for addressing the challenges posed by the sluggish kinetics of OER in implementing renewable approaches for energy production and climate change mitigation.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shahid Zaman, Ya-Qiong Su, Chung-Li Dong, Ruijuan Qi, Lei Huang, Yanyang Qin, Yu-Cheng Huang, Fu-Min Li, Bo You, Wei Guo, Qing Li, Shujiang Ding, Bao Yu Xia
Summary: The study of a low-platinum nanoalloy-implanted graphene catalyst for fuel cells shows high efficiency and durability, providing important insights for the future development of fuel cell technology.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Green & Sustainable Science & Technology
X. Zhao, D. He, B. You
Summary: This study reports a method to fabricate graphene-based planar supercapacitors using laser engraving and punching, which exhibit excellent flexibility, superior modularization, and programmable pore generation. The planar supercapacitors do not require external metal current collectors and separators, and demonstrate high specific capacitance, outstanding rate capability, and robust stability.
MATERIALS TODAY SUSTAINABILITY
(2022)
Article
Chemistry, Organic
Keyin Wang, Yinzhe Chen, Siyuan Wang, Qian Zhang
Summary: A new method for synthesizing Linezolid, an antibiotic belonging to the family of oxazolidinones, was developed. The method involves Buchwald-Hartwig amination reaction and Gabriel amine synthesis as key steps and has shown high efficiency and easy operation. This new method opens up possibilities for synthesizing new Linezolid derivatives that may help address bacteria resistance to oxazolidinones.
TETRAHEDRON LETTERS
(2022)
Review
Chemistry, Physical
Xin Hu, Zixu Sun, Guoliang Mei, Xin Zhao, Bao Yu Xia, Bo You
Summary: This article reviews the recent progress on nanostructure engineering of various nonprecious metal oxides electrocatalysts for 2e-WOR, discusses the fundamental understanding of 2e-WOR, H2O2 quantification methods, and strategies for high-performance electrocatalysts. The future challenges and opportunities for 2e-WOR to H2O2 are proposed.
ADVANCED ENERGY MATERIALS
(2022)
Review
Chemistry, Medicinal
Ruijun Tang, Jing Liu, Shuyao Li, Junjie Zhang, Chunhong Yu, Honglu Liu, Fang Chen, Lu Lv, Qian Zhang, Kai Yuan, Hao Shao
Summary: This review discusses the discovery and molecular profiling of CDK12 inhibitors, both patented and from peer-reviewed literature, since 2016. CDK12 inhibitors with different mechanisms of action have been identified, and they have shown promising results in preclinical testing for various diseases.
EXPERT OPINION ON THERAPEUTIC PATENTS
(2022)
Article
Chemistry, Physical
Yansong Zhou, Ziwei Wang, Wensheng Fang, Ruijuan Qi, Zhitong Wang, Chenfeng Xia, Kai Lei, Bo You, Xuan Yang, Youwen Liu, Wei Guo, Yaqiong Su, Shujiang Ding, Bao Yu Xia
Summary: In this study, partially pyrolyzed nickel-organic frameworks were used to efficiently oxidize methanol at the anode. Experimental and theoretical results showed that partial deligandation maintained the porous skeleton and allowed for more accessible nickel sites, leading to selective and efficient formate electrosynthesis. The overall electrolysis system reduced energy consumption by 23% at 200 mA cm(-2) in a flow cell, and further improvements were achieved in a zero-gap membrane electrode assembly device with a processing capacity of approximately 500 mA cm(-2) at 2.4 V. This work provides valuable insights for designing advanced electrocatalysts and electrolyzer configurations for decarbonization and high energy efficiency.
Review
Chemistry, Multidisciplinary
Hui Jiang, Yujie Sun, Bo You
Summary: Closed-loop cycling of green hydrogen, stored from renewable energy sources, is a promising alternative for mitigating the energy crisis and environmental pollution. However, the sluggish kinetics of involved reactions and the need for rapid mass transport and gas diffusion pose challenges. This Account summarizes the contributions of dynamic electrodeposition on bubbles to the development of advanced porous electrocatalysts for green hydrogen cycling.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Xin Zhao, Daping He, Bao Yu Xia, Yujie Sun, Bo You
Summary: This article discusses the methods and applications of ambient electrosynthesis for the synthesis of single-atom site catalysts (SASCs). A systematic summary is provided for three synthetic routes of SASCs, along with advanced characterization techniques. The applications of these synthesis methods in hydrogen energy conversion are reviewed. Finally, challenges for further development of high-performance and cost-effective SASCs are presented.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wenxuan Xue, Zhiwei Zhu, Sanxia Chen, Bo You, Conghui Tang
Summary: A Co-N/C catalyst derived from a bimetal-organic framework with an atomically dispersed cobalt center is reported to show good activity in the chemoselective aziridination/oxyamination reactions of alkene and hydroxylamine, as well as late-stage functionalization of complex alkenes and diversified synthetic transformations of the aziridine product. This system operates without external oxidants and exhibits mild, atom-economic, and recyclable characteristics. Detailed spectroscopic characterizations and mechanistic studies reveal the structure of the catalytic center and possible intermediates involved in the mechanism cycle.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Li Quan, Xiangxiong Chen, Jinlong Liu, Sanjun Fan, Bao Yu Xia, Bo You
Summary: This study demonstrates that ultralow Pt single atoms embedded in highly porous N-doped carbons can effectively catalyze chlorine evolution reaction (CER) in acidic water electrolysis, replacing the sluggish oxygen evolution reaction (OER). The Pt-1/p-NC@CNTs material shows excellent catalytic activity for CER, promoting the production of various organic halide compounds and hydrogen gas. The atomic Pt-N-4 active sites balance the adsorption/desorption of Cl intermediates and the high porosity of the material enriches Cl(-) around active sites, promoting the rate-limiting Volmer-Heyrovsky pathway for improved CER.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Energy & Fuels
Zhiwei Zhu, Xiangxiong Chen, Jinlong Liu, Sanjun Fan, Bo You
Summary: The researchers develop a universal approach to negatively charge nonprecious metal phosphides/selenides through one-step aniline electropolymerization coating, which greatly improves the alkaline HER. Physicochemical characterizations and DFT calculations show that the surface-coated polyaniline (PANi) renders the active species negatively charged, resulting in accelerated water dissociation. The resulting Ni5P4@PANi exhibits exceptional alkaline HER performance with a significant 680 mA cm(-2) at a 300 mV overpotential.
Article
Chemistry, Multidisciplinary
Shaomin Chen, Zhiyan Chen, Tianjian Zhang, Bo Zhao, Bo You, Minghao Li, Yanlong Gu
Summary: An efficient acid-catalyzed three-component cascade strategy was established to synthesize phenyl-substituted dihydrocyclohepta[b]indole carboxylate, which is a privileged scaffold. Another route to access tetrahydrocyclohepta[b]indoles was also discovered. These methods are practically attractive due to readily available materials, inexpensive metal-free catalysts, eco-friendly solvents, and divergent synthesis.
Review
Chemistry, Multidisciplinary
Qian Zhang, Bing Yan, Li Feng, Jiaojiao Zheng, Bo You, Jiayun Chen, Xin Zhao, Chunmei Zhang, Shaohua Jiang, Shuijian He
Summary: Porous carbon nanomaterials (PCNs) are widely used in energy storage devices. Traditional synthesis methods of PCNs are time-consuming, tedious, corrosive, and costly. Organic potassium salts (OPSs) have emerged as versatile reagents for synthesizing PCNs, which can avoid the use of large amounts of corrosive chemical agents. OPS-based synthesis of PCNs utilizes in-situ generated potassium carbonate as a green activation agent and water-removable template, resulting in highly porous architecture. The carbon-rich organic moiety in OPSs acts as a carbon precursor and chemical blowing agent. This review summarizes recent progress on the capacitive performance of PCNs synthesized from OPSs, providing constructive viewpoints for cost-effective and green synthesis of PCNs for supercapacitor applications.
Review
Chemistry, Applied
Huiting Niu, Chenfeng Xia, Lei Huang, Shahid Zaman, Thandavarayan Maiyalagan, Wei Guo, Bo You, Bao Yu Xia
Summary: Fuel cells have attracted attention for their high efficiency and environmental friendliness, but the use of platinum as a catalyst is limited by its high cost and poor activity. One-dimensional platinum-based composites show great advantages in efficient oxygen reduction reaction (ORR) catalysis. This review focuses on the recent advancements in the design and synthesis of one-dimensional Pt-based ORR catalysts and proposes challenges and perspectives for future research.
CHINESE JOURNAL OF CATALYSIS
(2022)
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)
