Article
Environmental Sciences
Antoine P. Trzcinski, Kouji Harada
Summary: This study demonstrates a novel PFAS remediation process involving adsorption onto graphite intercalated compounds (GIC) and electrochemical oxidation. The process showed efficient adsorption and degradation of PFOS, as well as the production of short chain PFAS by-products.
Article
Materials Science, Multidisciplinary
Wei Zhang, Zengtong Jiao, Chi Zhang, Linfeng He, Meili Qi, Caixia Li, Suwei Cheng, Gang Xu, Xiaotong Chen, Bing Liu, Yaping Tang
Summary: In this study, the chemical composition and structure of electrochemical deconsolidation products (EDP) obtained from high-temperature gas-cooled reactor (HTGR) spent fuel elements were investigated. The application of EDPs in the adsorption of strontium ions (Sr2+) was also explored. The results showed that the type and amount of functional groups on the EDP surface significantly impacted the Sr2+ adsorption capacity. The proposed adsorption mechanism provides a theoretical foundation for evaluating the distribution of 90Sr during the electrochemical deconsolidation of HTGR spent fuel elements.
JOURNAL OF NUCLEAR MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Wanzhen Xu, Wenjie Zhu, Junliang Shen, Mingyue Kuai, Yi Zhang, Weihong Huang, Wenming Yang, Mengmeng Li, Sheng Yang
Summary: Graphene oxide (GO) has various applications in energy devices, biomedicine, environmental protection, and composite materials. A stepwise electrochemical method for fast GO preparation is reported, which involves spontaneous persulfate intercalation and anodic electrolytic oxidation. This method avoids uneven intercalation and insufficient oxidation, significantly shortening the overall duration, and resulting in GO with higher oxygen content and enhanced adsorption capacity compared to traditional methods.
Article
Engineering, Environmental
Giannis-Florjan Norra, Jelena Radjenovic
Summary: A three-dimensional electrochemical flow-through reactor with GAC packed bed was evaluated for the removal of persistent organic contaminants from real sewage effluent. Results showed enhanced adsorption ability of GAC at high current density, along with a synergistic effect between electrosorption/adsorption on GAC and electrooxidation for the removal of various pollutants. The addition of GAC also decreased concentrations of toxic chlorates and perchlorates, as well as organic iodides and organic chlorines, in the effluent.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Physical
Fanhao Tang, Dongxu He, Hao Jiang, Rongshuo Wang, Zheling Li, Weidong Xue, Rui Zhao
Summary: In this study, a top-down strategy was presented to directly fabricate GO/graphite foam from graphite paper. The synergistic effect with GO and graphite greatly enhanced the electrochemical performance of the electrode.
Article
Physics, Multidisciplinary
Ashamoni Neog, Rajib Biswas, Nishant Bharali
Summary: A green route for synthesizing graphene oxide (GO) from waste Zn-C dry cell batteries was comprehensively reported in this study. LiCl was used as the electrolyte for electrochemical synthesis of GO from graphite rods extracted from waste batteries. The satisfactory yield and confirmatory characterizations confirmed the feasibility and efficiency of the synthesis.
Article
Engineering, Environmental
Huilin Li, Qiang Guo, Yongli Li, Mingbo Fu, Dengchao Tian, Tao Qi
Summary: Efficient, stable, and inexpensive photocatalysts were obtained by synthesizing CeO2@ expanded graphite composites. The composites showed high pollutant removal efficiency, reaction rate, stability, and suitability for water pollution treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Zengtong Jiao, Chi Zhang, Wei Zhang, Linfeng He, Zhenming Lu, Meili Qi, Caixia Li, Suwei Cheng, Gang Xu, Xiaotong Chen, Bing Liu, Yaping Tang
Summary: This study investigated the effect of HNO3 concentration on galvanostatic deconsolidation, revealing that 34% HNO3 was the most effective in separating matrix graphite due to the combined effect of intercalation, hydrolysis, and oxygen evolution.
Article
Chemistry, Physical
Jiaxi Zeng, Xiaoli Zhao, Hongbin Lu
Summary: This study demonstrates a liquid-phase sewing strategy to construct carbon foams (CFs) directly from flake graphite, overcoming the challenge of constructing CFs with desired structures and intact lattice integrity. The CFs constructed through this method exhibit high conductivity and high-performance electromagnetic interference shielding effectiveness.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Siyabulela J. Tshemese, Washington Mhike, Shepherd M. Tichapondwa
Summary: In this study, Exfoliated Graphite (EG) was investigated as an adsorbent for the removal of Cr (VI) and phenol from industrial effluents. The removal efficiency was found to be highest for Cr (VI) under acidic conditions (pH 2) and for phenol under basic conditions (pH 12). Three non-linear adsorption models were evaluated, with Redlich-Peterson and Langmuir isotherms found to describe the equilibrium data for Cr (VI) and phenol, respectively. The study also concluded that the adsorption of phenol and Cr (VI) onto EG was a feasible, endothermic and spontaneous process.
ARABIAN JOURNAL OF CHEMISTRY
(2021)
Article
Engineering, Environmental
Zohreh Darvishi Chaghaganooj, Neda Asasian-Kolur, Seyedmehdi Sharifian, Mika Sillanpaa
Summary: This study investigated the use of activated carbon-metal composites for phenol adsorption and decomposition, with modified activated carbon and metal oxides showing optimized performance. The introduction of metal oxides increased the micropore volume and reduced the oxidation temperature of the adsorbed phenol, making the materials suitable for cyclic adsorption-oxidation processes. Additionally, manganese oxide showed better performance than ceria and mixed composites for phenol oxidation under air atmosphere.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Applied
Jin-Lin Wan, Jing-Mei Huang
Summary: An electrochemical oxidative approach for the synthesis of spirooxazolidinones from phenol derivatives via intramolecular dearomative amination reactions is developed. This reaction does not require the use of metal catalysts or external chemical oxidants, and exhibits a broad substrate scope and compatibility with diverse functional groups. The synthetic utility of this strategy is demonstrated through gram-scale synthesis and late-stage functionalization. Additionally, the reaction conditions can be adjusted to produce alcohols (1˚, 2˚, and 3˚) from phenol derivatives, offering a useful strategy for deprotecting the para-methoxyphenyl (PMP) group and recovering the alcohol functionality.
ADVANCED SYNTHESIS & CATALYSIS
(2023)
Article
Engineering, Environmental
Ahsan Abdul Ghani, Asif Shahzad, Mokrema Moztahida, Khurram Tahir, Hyeji Jeon, Bolam Kim, Dae Sung Lee
Summary: Two-dimensional Ti3C2Tx MXene nanosheets intercalated with sodium ions were successfully synthesized and applied for Ciprofloxacin removal, showing enhanced adsorption capacity and quick kinetic behavior. The material could be completely regenerated through an electrochemical regeneration approach, maintaining high removal efficiency even after multiple cycles. Results suggest its potential use in practical water treatment applications.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Multidisciplinary
Wei-Wen Liu, Azizan Aziz
Summary: Graphene oxide (GO) is a derivative of graphene with hydrophilic and easily functionalized properties, which has attracted worldwide attention. Electrochemical synthesis methods of GO are popular due to their time-saving, explosion-free, and environmentally friendly nature, but the effects of reaction parameters need to be studied.
Article
Chemistry, Multidisciplinary
Kohei Miyazaki, Atsushi Mizawa, Yuta Ito, Fumihiro Sagane, Takeshi Abe
Summary: In this study, the formation kinetics of graphite intercalation compounds (GICs) were investigated, and it was found that the activation energy of interfacial anion transfer resistance is correlated with the viscosity of the ionic liquid electrolytes. This relationship provides important insights for the construction of dual-ion batteries with high capacity and high rate capability.
Article
Materials Science, Ceramics
Ghulam Mustafa, Muhammad Khalid, Ali Dad Chandio, Kiran Shahzadi, Zaheer Uddin, Junaid Kareem Khan, Naimat Ullah Channa, Zaheer Abbas Gilani, H. M. Noor ul Huda Khan Asghar
Summary: A series of lanthanum-doped nickel ferrites were synthesized and their dielectric properties were studied. The results showed that the La doping induced lattice strain and affected the lattice constant, resulting in changes in dielectric loss and dielectric constant. The materials exhibited the most stable dielectric properties at high frequencies, making them potential candidates for microwave devices.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Mohammad Rahimi, Asghar Molaei Dehkordi, Hussein Gharibi, Edward P. L. Roberts
Summary: The novel magnetic flowable electrode (MFE) approach enhances the performance of redox flow batteries by creating a high active surface area electrode using magnetic nanomaterials without a complex structure. The MFE exhibits superior electrochemical activity and stability compared to conventional stationary carbon felt electrodes, resulting in lower cell impedances, pump losses, and higher battery efficiencies. This design opens new opportunities for next-generation RFB systems and can be applied in various flow battery chemistries.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Inorganic & Nuclear
Tausif Ahmad, Mohamad Azmi Bustam, Humbul Suleman, Muhammad Irfan, Jibran Iqbal, Hafiz Muhammad Anwaar Asghar
Summary: This study utilized a surface chemistry approach to investigate the role of bioactive compounds in Elaeis guineensis leaves in biocapping gold nanoparticles, with an emphasis on the enhanced Vvdw forces impeding the growth of AuNPs. The XPS analysis showed a major contribution of polyphenolic, carboxylic, and amide compounds in biocapping the surface of AuNPs, leading to a reduction in Velec forces and hindering their growth kinetics.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Materials Science, Ceramics
Muhammad Junaid, Ijaz Ahmad Qazafi, Muhammad Azhar Khan, Shagufta Gulbadan, Syed Zafar Ilyas, H. H. Somaily, Mohamed S. Attia, Mohammed A. Amin, H. M. Noor ul Huda Khan Asghar
Summary: The impact of Ni2+ and Zr4+ on the physical properties of LiFe2O4 ferrites synthesized via the microemulsion technique was investigated. The substitution of Ni2+ and Zr4+ ions led to changes in lattice constant, crystallite size, X-ray density, dielectric parameters, and magnetic properties of lithium ferrites.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Nivedita Kulkarni, Jason I. S. Cho, Rhodri Jervis, Edward P. L. Roberts, Iacoviello Francesco, Matthew D. R. Kok, Paul R. Shearing, Dan J. L. Brett
Summary: This study uses X-ray CT to characterize the compressed MEA and finds that non-uniform compression affects the localized current distribution and water transport in fuel cells. Increased compression has little effect on the performance in the activation region, but significantly affects the performance in the mass transport region, promoting cell flooding.
JOURNAL OF POWER SOURCES
(2022)
Article
Engineering, Environmental
Nael G. Yasri, Markus Ingelsson, Michael Nightingale, Aprami Jaggi, Michael Dejak, Katerina Kryst, Thomas B. P. Oldenburg, Edward P. L. Roberts
Summary: One of the main challenges for the implementation of electrocoagulation (EC) in water treatment is fouling and passivation of the electrodes. This study investigates the process of fouling mitigation by polarity reversal during EC treatment. The research found that shortening the polarity period can reduce electrode fouling and lead to the formation of a soft powdery fouling layer that is easily removed.
WATER SCIENCE AND TECHNOLOGY
(2022)
Article
Computer Science, Interdisciplinary Applications
Niloo Misaghian, Mehrez Agnaou, Mohammad Amin Sadeghi, Hamed Fathiannasab, Isma Hadji, Edward Roberts, Jeff Gostick
Summary: This study develops a deep learning framework to accurately predict the diffusive conductance in porous media by analyzing 3D images of pore regions extracted from tomograms. The results demonstrate high accuracy and significantly improved prediction speed.
COMPUTERS & GEOSCIENCES
(2022)
Article
Chemistry, Physical
Maedeh Pahlevaninezhad, Majid Pahlevani, Edward P. L. Roberts
Summary: Impurities in vanadium redox flow batteries have significant effects on battery performance. Mn2+ ions have a negligible impact, while Al3+ and Fe2+ ions severely affect battery performance and durability. Fe2+ decreases discharge capacity by 36%, while Al3+ forms alumina-containing precipitate on the electrodes, leading to a severe decline in battery performance.
JOURNAL OF POWER SOURCES
(2022)
Article
Materials Science, Multidisciplinary
Kiran Naz, Junaid Kareem Khan, Muhammad Khalid, Muhammad Saeed Akhtar, Zaheer Abbas Gilani, H. M. Noor ul Huda Khan Asghar, Gaber A. M. Mersal, Mohamed M. Ibrahim, A. Muhammad, M. G. B. Ashiq
Summary: A series of nickel substituted copper spinel ferrite nanoparticles were fabricated using sol-gel auto-combustion technique. The structural properties of the compound were determined through X-ray diffraction analysis. The dielectric properties of the synthesized nanomaterials were observed to vary with the nickel concentration, suggesting their potential application in microwave devices.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Samiullah, H. M. Noor ul Huda Khan Asghar, Zaheer Abbas Gilani, Muhammad Khalid, Awais Ahmed, Abdul Kareem Khan, Mohammad Rizwan Khan, Furhaj Ahmed Sheikh, Naushad Ahmad, Rosa Busquets
Summary: In this study, Pr3+ doped M-type hexaferrites were synthesized using sol-gel technique and characterized for their structural, morphological, dielectric and magnetic properties. The results showed that Pr3+ doping influenced the lattice and magnetic properties of the material, and the prepared particles exhibited excellent electric and magnetic properties, making them suitable for various applications.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Editorial Material
Electrochemistry
Ignasi Sires, Manuel A. Rodrigo, Maria Gomez-Mingot, Edward P. L. Roberts
Summary: The Meeting of the Electrochemistry Group of the Spanish Royal Society of Chemistry is an annual event that has been held since the late 1970s. Due to the economic crisis in Spain, many electrochemists trained in Spain have emigrated to other countries and now lead important research groups. Therefore, this year's meeting was held in Paris, France, to bring together all electrochemists trained in Spain.
Article
Materials Science, Multidisciplinary
Muhammad Azhar Khan, Shaheen Aslam, M. Asif Iqbal, Muhammad Junaid, Shagufta Gulbadan, Syeda Rabia Ejaz, Alina Manzoor, Ghulam Abbas Ashraf, H. M. Noor ul Huda Khan Asghar, H. H. Somaily, Manal Morsi, Thamraa Alshahrani
Summary: Ba(3)Co(2-x)MgsFe(24)O(41) hexaferrites were successfully synthesized by the sol-gel combustion route, and it was found that increasing Mg concentration decreased the X-ray density and crystallite size. Fourier transform infrared spectroscopy was used to determine the specific absorption peaks of hexagonal ferrites, and the role of grain boundaries in the conduction process was observed. Magnetic measurements indicated ferrimagnetic behavior in all samples.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Zaheer Abbas Gilani, Samiullah, H. M. Noor ul Huda Khan Asghar, Muhammad Khalid, Muhammad Suleman, Muhammad Ali Shar, Syed Mansoor Ali, Faisal Iqbal, Abdulaziz Alhazaa
Summary: Praseodymium (III)-doped M-type SrPrxFe12-xO19 hexa-ferrites were synthesized via micro-emulsion process followed by annealing. The effects of praseodymium particles on electrical, magnetic, and dielectric properties were studied. The materials showed potential for applications in high-density recording medium and high-frequency devices.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Engineering, Environmental
Mohamed M. Elsutohy, Behzad Fuladpanjeh-Hojaghan, Edward P. L. Roberts, Milana Trifkovic
Summary: In this study, ratiometric, fluorescent pH-sensitive nanosensors were fabricated and utilized for real-time quantification of fast-dynamic, interfacial pH changes in electrochemical processes. Electrochemically coupled laser scanning confocal microscope (EC-LSCM) was used to detect spatio-temporal pH changes during the electrocoagulation treatment of oil-sands-produced water. The operando visualization of interfacial pH provided new insights into electrode processes and offered a powerful pathway for optimizing operating conditions and enhancing the efficiency of various electrochemical processes.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Maedeh Pahlevaninezhad, Elizabeth Esther Miller, Lixin Yang, Lauren Sarah Prophet, Ashutosh Singh, Thomas Storwick, Majid Pahlevani, Michael A. Pope, Edward P. L. Roberts
Summary: The use of ultrathin graphene coating on Nafion membranes significantly improves the performance of vanadium redox flow batteries, leading to higher energy efficiency (increased by 13%), power density (by 67%), and discharge capacity (by 17.5%) over 100 cycles.
ACS APPLIED ENERGY MATERIALS
(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)
