Article
Chemistry, Inorganic & Nuclear
Qi Zhang, Qian Zang, Qiqi Shi, Zhenyu Xiao, Kun-Peng Wang, Lingbo Zong, Lei Wang
Summary: The rational design of multi-shelled hollow structured electrode materials for supercapacitors, synthesized via a combination approach of self-templating and sacrificial templating method, demonstrates high performance and outstanding cycling stability. This is attributed to compositional and structural advantages, with optimized V6O11@Ni(OH)(2)/NiOOH-6 delivering impressive specific capacitance and energy density.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Physical
Yu Lu, Yaohua Qin, Mingyue Chen, Gaofu Liu, Pengcheng Qi, Hao Wu, Yiwen Tang
Summary: In this study, a three-phase hierarchical nanostructure electrode was successfully designed and constructed using a facile one-pot hydrothermal strategy. The electrode exhibited remarkable electrochemical behavior, demonstrating the possibility and effectiveness of fabricating multi-dimensional and multi-phase composites for high-performance energy storage devices.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Liang Zhang, Hua Li, Jiali Gu, Xianyi Zhao, Xinyue Wang
Summary: Safeguarding drinking water standards is critical with a growing population. A novel electro-chemical sensor based on Ni foam-supported Pt/Ni(OH)(2) nanoflakes was fabricated for the effective detection of ammonia-nitrogen in drinking water, exhibiting excellent detection performance and practicality.
Article
Chemistry, Multidisciplinary
Tanveer ul Haq, Mahreen Arooj, Aleena Tahir, Yousef Haik
Summary: A nano-micro heterostructure has been developed to address the challenges of anodes in unpurified seawater, with improved selectivity, stress, pitting corrosion, and long-term durability. The heterostructure consists of NiOOH nanosheets embedded within a high surface area Ni(OH)(2) microarray and functionalized with sulfate. The cation-selective protective layer impedes chloride diffusion and enhances corrosion resistance, while the multilevel porosity ensures efficient ion transport and long-term structural durability.
Article
Chemistry, Physical
Ruipeng Luo, Yuyang Li, Lixin Xing, Ruyi Zhong, Zhengyi Qian, Geping Yin, Yucheng Wang, Lei Du
Summary: The facile upgrading of 5-hydroxymethylfurfural (HMF) via controllable oxidation of aldehyde and hydroxymethyl groups has attracted attention due to the industrial value of 2,5-furandicarboxylic acid (FDCA). The Ni(OH)2-NiOOH/NiFeP heterojunction exhibits outstanding performance in HMF oxidation, producing FDCA with high yield and Faradaic efficiency. A NiOOH-centered dual-circle mechanism is proposed to understand the intertwined and competitive processes of HMF oxidation and oxygen evolution.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Juan Wen, Haodong Sun, Qi Zhou, Zaichun Liu, Ting Huang, Xi Chen, Xiaoyan Yang, Qinghong Huang, Yuhui Chen, Yuping Wu
Summary: Ammonia, closely related to our daily life, has a production process with high energy consumption and emissions that are not in line with the concept of low-carbon and environmental protection. The electrocatalytic nitrogen reduction reaction (NRR) technology offers a promising method to convert unstable electrical energy into fuel for storage. In this study, a bimetallic catalyst, Co-Ni-S/Ni foam, was developed and showed good activity and stability in N-2 reduction, achieving a high NH3 yield with good electrochemical stability and selectivity.
MATERIALS TODAY ENERGY
(2022)
Article
Engineering, Environmental
Renyu Wang, Huijuan Liu, Kai Zhang, Gong Zhang, Huachun Lan, Jiuhui Qu
Summary: This study successfully constructed an electrocatalytic ammonia oxidation system using a nickel phosphide anode, which effectively converted ammonia in wastewater into harmless nitrogen, providing a very promising method for treating ammonia containing wastewater.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Hongye Bai, Fengfeng Wang, Ying Liu, Chuan Ma, Jinrui Ding, Weiqiang Fan
Summary: Ni modification on the surface of Cu2O photocathode effectively improves the NH3 yield of PEC NRR.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Nanoscience & Nanotechnology
Divya Rathore, Arghya Banerjee, Surojit Pande
Summary: In this study, a tungsten-doped Ni(OH)(2)/NiOOH nanosheet electrode was synthesized for efficient hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in KOH solution. The tungsten doping was found to improve the electrocatalytic activity and the synergistic effect between tungsten and nickel ions played a crucial role in enhancing the overall efficiency. The electron pulling nature of the tungsten dopant was confirmed, and density functional theory calculations revealed enhanced HER activity due to increased Gibbs free energy of H adsorption in the presence of tungsten.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Yuexiang Li, Ruijie Tong, Wenzhen Zhang, Shaoqin Peng
Summary: Phosphate-intercalated Ni-Ni(OH)2/NiOOH electrode shows improved oxygen evolution reaction (OER) activity and long-term stability, providing a strategy to develop efficient and stable OER materials.
JOURNAL OF CATALYSIS
(2022)
Article
Chemistry, Physical
Sijun Wang, Feng Gong, Qiang Zhou, Yunlong Xie, Hao Li, Menglin Li, Enkang Fu, Peng Yang, Yuhang Jing, Rui Xiao
Summary: Chemical looping ammonia synthesis (CLAS) is a promising method for decentralized ammonia synthesis. In this study, a composite nitrogen carrier based on transition metals (Co, Ni, Fe) decorated chromium nitride (CrN) is developed, which exhibits high selectivity and efficiency in CLAS.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Jianxin Kang, Yufeng Xue, Jie Yang, Qi Hu, Qinghua Zhang, Lin Gu, Annabella Selloni, Li-Min Liu, Lin Guo
Summary: This study reports the discovery of two-electron transfer in monolayer Ni(OH)2 nanosheets, which is different from the traditional one-electron transfer found in multilayer materials. The experimental results show that the monolayer material has an exceptional redox capacity nearly two times higher than the theoretical capacity of one-electron processes. In situ experiments further demonstrate that the monolayer material can transfer two electrons, while the bulk material can only undergo partial transformation.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Liang Zhang, Liwen Wei, Junxiao Liu, Jiali Gu, Hui Suo, Chun Zhao
Summary: In this study, a novel electrochemical sensor was designed for the detection of ammonia-nitrogen in water using Ni foam-supported Pt-Ni(OH)(2) nanosheets. The sensor exhibited excellent catalytic activity towards the electrooxidation of ammonia due to the synergistic effect between Pt and Ni(OH)(2). The sensor showed great detection ability for ammonia-nitrogen with a wide linear range and a low limit of detection.
Review
Chemistry, Multidisciplinary
Enkang Fu, Feng Gong, Sijun Wang, Rui Xiao
Summary: Ammonia is an efficient and clean hydrogen carrier that can address energy and environmental issues. Chemical looping technology allows the separate nitridation and hydrogenation processes to achieve mild ammonia synthesis based on renewable energy. This review introduces the concept and mechanism of chemical looping ammonia production and comprehensively summarizes the state-of-art research.
Article
Energy & Fuels
Yong Yang, Jiancheng Shu, Lei Zhang, Pengxin Su, Weile Meng, Qiuyue Wan, Zuohua Liu, Renlong Liu, Faming Chen, Xianquan Ming
Summary: This study investigated the efficient manganese leaching from electrolytic manganese anode slime (EMAS) by analyzing the effects of different factors on leaching efficiency. The results showed a high leaching efficiency of 97.5% under specific conditions, and the leaching kinetics indicated the formation of a closed-cycle system during the leaching process. This study provides a new method for the resource utilization of EMAS.
Article
Engineering, Environmental
Yu-Ching Kao, Yu-Jen Shih, Chin-Pao Huang
Summary: In this study, an electrode with high-specific-surface area and low pHzpc was fabricated using activated carbon supported on graphite sheet. The effect of reversible surface charge on the adsorption of NaCl electrolyte on a polarizable electrode was investigated. The results showed that both the reversible and polarizable surface charges contributed equally to the total charge density. The importance of reversible surface charge and polarizable surface charge in the design and operation of electrosorption systems was reaffirmed.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Ching-Lung Chen, Yu-Jen Shih, Jenn Fang Su, Kuan-Ling Chen, Chin-Pao Huang
Summary: Mesoporous zirconium pyrophosphate (ZPP) adsorbents were synthesized using six quaternary ammonium salts as template, with C18-ZPP exhibiting the highest specific surface area and fluoride adsorption density. The Zr to C18 molar ratio of 0.57:1 resulted in the best fluoride adsorption capacity among all ZPP adsorbents prepared.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yu-Jen Shih, Zhi-Shan Chen, Ching-Lung Chen, Yao-Hui Huang, Chin-Pao Huang
Summary: A composite electrode of manganese oxide and iron oxide was synthesized for the oxidation and adsorption of arsenic species. The different materials showed variations in electrochemical performance and adsorption capacity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Agricultural Engineering
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Der-Shyan Sheu, Cheng-Di Dong
Summary: This study employed a novel and environment-friendly biopolymer/oxidant catalytic system, poly(3-hydroxybutyrate)/peroxymonosulfate (PHB/PMS), for the first time to pretreat wastewater sludge. The results showed that under optimal conditions, the PAHs in the sludge matrix were significantly decreased, and increasing salinity further improved the degradation. Functional metagenomic analysis revealed the efficient PAH-degrading function of the Conexibacter genus in the system.
BIORESOURCE TECHNOLOGY
(2022)
Article
Agricultural Engineering
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Der-Shyan Sheu, Cheng-Di Dong
Summary: This study aimed to assess the combined use of biopolymer, poly-3-hydroxybutyrate, and peroxymonosulfate to degrade phthalate esters (PAEs) and decontaminate waste-activated sludge (WAS). The combined treatment removed 86% of PAEs from WAS in 12 hours and enriched the PAE-biodegrading microbes. The use of poly-3-hydroxybutyrate and peroxymonosulfate showed promising potential for WAS pretreatment, contributing to circular bioeconomy and pollution mitigation.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Kegang Wei, Qingliang Wang, Chin-Pao Huang
Summary: Amino-functionalized porous silica was studied as an adsorbent for U(VI) and its adsorption mechanism was investigated. Different porous silica materials with varied surface areas and average pore sizes were synthesized and modified with AEPTES. The adsorbents were thoroughly characterized and the adsorption energy was estimated. It was found that both coulombic energy and chemical energy contributed significantly to the adsorption energy, and AE@MPS had the lowest surface activate site density at a pore size of 4.1 nm.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Cuijuan Feng, Michael Huang, Chin-pao Huang
Summary: A gamma-Fe2O3-biochar was synthesized using ferrate as precursor, which increased surface acidity and magnetism strength, enhancing metal ion adsorption and enabling easy magnetic separation. The adsorption of selected metal ions onto gamma-Fe2O3-biochar was well fitted by the Langmuir adsorption model, with significantly high monolayer metal coverage capacity. Metal ion adsorption reactions involved surface complex formation and the dominating component for adsorption was specific chemical energy.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Seto Sugianto Prabowo Rahardjo, Yu-Jen Shih
Summary: Electrochemical engineering processes are emerging as efficient and environmentally friendly alternatives for ammonia removal. In this study, Ag electrodes with metallic silver nanoparticles were synthesized and tested for electrochemical oxidation of ammonia. The Ag/Ni400 electrode showed the highest efficiency in NH3 oxidation and N2 yield.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Chang-Mao Hung, Chin-Pao Huang, Shu-Ling Hsieh, Ya-Ting Chen, Chiu-Wen Chen, Cheng-Di Dong
Summary: This study presents an efficient method for remediating DEHP-contaminated marine sediments using water hyacinth biochar (WHBC) as a carbocatalyst activated by calcium peroxide (CP). The catalytic capacity of WHBC was significantly influenced by the pyrolysis temperature. The WHBC/CP system achieved a 94% removal of DEHP, with singlet oxygen (1O2) and electron-rich carbonyl functional groups playing crucial roles in the non-radical activation of CP. Moreover, WHBC showed lower cytotoxicity in HepG2 cells and induced cell cycle arrest at the G2/M phase.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biotechnology & Applied Microbiology
Chang-Mao Hung, Chin-Pao Huang, Shu-Ling Hsieh, Ya-Ting Chen, Chiu-Wen Chen, Cheng-Di Dong
Summary: This study developed an advanced oxidation process using water hyacinth biochar (WHBC) as a green catalyst to activate calcium peroxide (CaO2; CP) for the remediation of PAH-contaminated sediments, and emphasized the biochar-driven cellular oxidative stress. The catalytic capacity of WHBC was determined at pyrolysis temperature between 300 and 900 degrees C. WHBC prepared at 700 degrees C (WHBC700) and CP removed 74% of PAHs from the sediment matrix.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Agricultural Engineering
Chang-Mao Hung, Chiu-Wen Chen, Chin-Pao Huang, Cheng-Di Dong
Summary: This study synthesized a novel material, dual heteroatom nitrogen and boron-co-doped lignin-based biochar (NB-LGBC), which was used for the activation of calcium peroxide (CP) to enhance the removal of organic micropollutants (OMPs), such as 4-nonylphenol (4-NP), from waste activated sludge (WAS). The introduction of NB-LGBC/CP significantly improved the degradation of 4-NP through a synergistic interaction and electron transfer. Furthermore, the NB-LGBC/CP treatment enriched specific bacteria, Desulfonatronum within the Proteobacteria phylum, in the WAS, enhancing the biological treatment capacity of 4-NP. Therefore, NB-LGBC shows great potential as a novel approach for decontamination of WAS.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yu-Jen Shih, Chen -Wei Change Chien
Summary: Electrocoagulation using various metal sacrificial anodes (Fe, Cu, Ni, Zn, and Al) effectively removes boron from water. The combination of Cu + Fe, Ni + Fe, Zn + Fe, and Ni + Al anodes, along with an Al cathode, allows for the recovery of boron in the form of spinel oxides. The efficiency of boron removal depends on the EC conditions, such as applied current, pH, and initial concentration, as well as the type of sacrificial anode.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Agricultural Engineering
Chang-Mao Hung, Jia-Wei Cheng, Chiu-Wen Chen, Chin-Pao Huang, Cheng-Di Dong
Summary: The effect of pyrolysis atmosphere (CO2 or N2), pyrolysis temperature (300-900 degrees C), and heteroatom (N, B, O, P, NP, or NS) doping on the content of polycyclic aromatic hydrocarbons in pineapple leaf biochar was investigated. Without doping, the highest polycyclic aromatic hydrocarbon production (1332 +/- 27 ng/g) was observed in CO2 at 300 degrees C, while the lowest (157 +/- 2 ng/g) was observed in N2 at 700 degrees C. The main components, naphthalene and acenaphthylene, accounted for about 91% of the total polycyclic aromatic hydrocarbon in biochar produced under CO2 at 300 degrees C. Doping significantly reduced the total hydrocarbon content, with reductions of 49% (N), 61% (B), 73% (O), 92% (P), 93% (NB), and 96% (NS) under the conditions of maximal polycyclic aromatic hydrocarbon production (CO2, 300 degrees C). The findings highlight the importance of controlling pyrolysis atmosphere, temperature, and heteroatom doping for the management of polycyclic aromatic hydrocarbons in biochar production and contribute to the development of circular bioeconomy.
BIORESOURCE TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yu-Jen Shih, Yu-Qiao Su, Wei-Hsiang Chen, Sheng-Kai Lin, Yi-Chun He, Chin-Pao Huang
Summary: Electrochemical oxidation of anti-diabetic metformin (MTF) drug was studied on glassy carbon electrode (GCE) prepared by electroplating of copper nanoparticles (Cu NPs) on reduced graphene oxide (rGO). Results demonstrated that the crystallite size and dispersity of Cu NPs on rGO sheets controlled the redox characteristics of CuxrGO1-x. The Cu(II)/Cu(I) redox current, attributed to the complexation of biguanide Cu(II)-MTF, was observed at specific anodic potentials as a function of MTF concentration. The electrode exhibited excellent reproducibility, selectivity, and recovery in phosphate buffer solution and pH 12, with a linear relationship between anodic current and MTF concentration in the range of 2 to 70 μM.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Zhi-Lun Wu, Yu-Jen Shih, Seto Sugianto Prabowo Rahardjo, Chin-Pao Huang
Summary: Electrochemical nitrate reduction is a promising method to recover valuable ammonia from nitrogen-contaminated waters. The characteristics of RhxCu1-x/Ni and RhxSn1-x/Ni bimetallic electrodes in the formation of ammonia from nitrate reduction were investigated. The results showed that Rh promoted the conversion of NO2- to NH4+ and Rh loading percentage affected the conversion of intermediates to ammonia. Selectivity and faradaic efficiency were achieved above 98% at a Rh to Cu ratio of 1:4, and a specific ammonia yield rate of 3.5 mg-N h(-1) g(-1) was obtained.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(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)
