Article
Chemistry, Physical
Shisheng Zheng, Xianhui Liang, Junjie Pan, Kang Hu, Shunning Li, Feng Pan
Summary: The interest in renewable electricity-driven CO2 electroreduction requires effective catalyst design strategies, focusing on compositional modulation and microstructural tailoring of catalytic centers. A systematic first principles study is performed on Ni2P, characterized by densely distributed Ni3 catalytic centers and high selectivity to C-C coupling during CO2 reduction. The cooperative accommodation of reaction intermediates and synergy between adjacent Ni3 sites enable the formation of multi-carbon species, facilitated by the hydrogen-bonding network of water to transfer surface protons between neighboring sites.
Article
Chemistry, Physical
Chao Zhan, Federico Dattila, Clara Rettenmaier, Arno Bergmann, Stefanie Kuhl, Rodrigo Garcia-Muelas, Nuria Lopez, Beatriz Roldan Cuenya
Summary: This study used operando Raman spectroscopy to investigate the potential-dependent reduction process of Cu2O nanocubes, revealing a correlation between CO coverage and the selectivity for multicarbon products. The research provides a theoretical basis for the high selectivity generation of multicarbon products.
Article
Chemistry, Physical
Ian Sullivan, Andrey Goryachev, Ibadillah A. Digdaya, Xueqian Li, Harry A. Atwater, David A. Vermaas, Chengxiang Xiang
Summary: Electrochemical CO2 conversion into fuels or chemicals and CO2 capture from point or dilute sources are two important processes to address the gigaton challenges in reducing greenhouse gas emissions. Both processes are energy intensive, but synergistic coupling between them can improve energy efficiency and reduce costs, by eliminating the need for CO2 transport and storage or capture media regeneration.
Article
Chemistry, Multidisciplinary
Kang Yang, Yuntong Sun, Sheng Chen, Ming Li, Min Zheng, Lushan Ma, Wenjun Fan, Yao Zheng, Qiang Li, Jingjing Duan
Summary: This study presents a metal-organic framework (MOF) with less-coordinated copper dimers, which exhibits excellent electrochemical CO2 reduction (eCO(2)RR) performance with a current density of 0.9 A cm(-2) and a Faradaic efficiency of 71% to C-2 products. Compared to MOF with Cu monomers, Cu dimers have a lower coordination number and favor the dimerization of *CO intermediates via *CH2CHO. The highly unsaturated dual-atomic Cu provides abundant and high-quality active sites for carbon-carbon coupling, achieving the optimal balance between activity and selectivity of eCO(2)RR to C-2 products.
Article
Chemistry, Multidisciplinary
Miaomiao He, Wei An, Yuanqiang Wang, Yong Men, Shuang Liu
Summary: This study investigates the application of double-atom catalysts in CO2 reduction and demonstrates that hybrid M-B dual-atom centers can outperform single or double-M centers. Fe@B-C2N is predicted as a promising catalyst for the development of C2+ products.
Article
Chemistry, Multidisciplinary
Shuyu Liang, Jiewen Xiao, Tianyu Zhang, Yue Zheng, Qiang Wang, Bin Liu
Summary: Electrochemical CO2 reduction to value-added chemicals or fuels is a promising approach to reduce carbon emissions and alleviate energy shortage. In this work, we develop sulfur-doped Cu2O electrocatalysts that can exclusively electrochemically reduce CO2 to formate. The sulfur-adsorbed metallic Cu surface promotes CO2-to-formate conversion during the electrochemical CO2 reduction reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Physical
Qian Zhang, Sen Wang, Rui Geng, Pengfei Wang, Mei Dong, Jianguo Wang, Weibin Fan
Summary: In this study, various Cr-modified CuFe catalysts were prepared and their catalytic performance and reaction mechanism in CO2 hydrogenation to C2+OH were investigated. The introduction of small amounts of Cr enhanced the interaction between Cu and Fe species, alleviating CO over-dissociation and inhibiting the generation of iron carbides. The Cr(1%)-CuFe catalyst exhibited high CO2 conversion, C2+OH selectivity, and space-time yield (STY).
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Young Jun Kim, Gaeun Yun, Ju Young Maeng, Hye Ji Jang, Ilsun Yoon, Chang Woo Myung, Choong Kyun Rhee, Youngku Sohn
Summary: In this study, metallic gallium (Ga) was used for electrochemical CO2 reduction (EC CO2R) under different conditions. The major products produced were formate, CO, and H2, which depended on the experimental conditions. The introduction of nickel (Ni) on the Ga electrode opened up long chain C-C bond coupling Fischer-Tropsch synthesis pathways, resulting in the production of long-chain C2-6 hydrocarbons. This research provides valuable insights into the use of Ga for electrochemical CO2 reduction and the development of Ga-based electrocatalysts for CO2 recycling. © 2023 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Di Zeng, Chengjin Li, Wenjing Wang, Lifang Zhang, Yu Zhang, Juxue Wang, Ling Zhang, Xiaoxia Zhou, Wenzhong Wang
Summary: The introduction of a hydrophobic structure using a PTFE coating on Cu-I promotes highly efficient CO2RR with a Faradaic efficiency of 70.2% for C2H4 production. The accelerated diffusion of gas at the interface increases the local concentration of CO2 for electrolysis. The hydrophobic Cu-I/PTFE electrode enhances the production of hydroxyl radicals, stabilizing Cu+ species and facilitating C-C coupling for the selective formation of C2+ products.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Hua Wang, Yong Jiang, Sijun Li, Fenglin Gou, Xiaorui Liu, Yimin Jiang, Wei Luo, Wei Shen, Rongxing He, Ming Li
Summary: Electrochemical C-N coupling of carbon dioxide and oxynitride under ambient environment is a promising approach for sustainable production of industrial chemicals. The efficient co-reduction of carbon dioxide and nitrate to form urea was achieved using AuPd nanoalloy catalyst. DFT studies revealed the most likely C-N coupling N-intermediate as hydroxylamine, and the reaction pathway for urea formation involves a one-step synergistic coupling process.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Analytical
Silvia Mena, Esteve Ribas, Clara Richart, Iluminada Gallardo, Jordi Faraudo, Scott K. Shaw, Gonzalo Guirado
Summary: The paper focuses on the role of carbon dioxide in controlling the Earth's temperature and the environmental problems caused by its increased concentration in the atmosphere. It discusses the use of ionic liquids for efficient CO2 capture and conversion, utilizing electrochemical, spectroscopic, and molecular dynamics techniques to understand the reduction mechanism under various conditions. The research opens up possibilities for theoretical-experimental approaches to determine the CO2 reduction mechanism and the dependency of product formation on the electrode material and solvent used.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Review
Chemistry, Applied
Jing Du, Yuan-Yuan Ma, Huaqiao Tan, Zhen-Hui Kang, Yangguang Li
Summary: Electrochemical CO2 reduction to value-added fuels and chemicals is an effective strategy due to its high efficiency and economic feasibility. Polyoxometalates (POMs) are promising candidates for efficient CO2RR electrocatalysts and play significant roles in the process and performance of catalytic CO2RR.
CHINESE JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Physical
Zhizhou Cai, Ning Cao, Fanxing Zhang, Xiangzhou Lv, Ke Wang, Yi He, Yao Shi, Hao Bin Wu, Pengfei Xie
Summary: By utilizing the atomic arrangement in immiscible Ag-Cu composite during annealing, hierarchical interfaces were established in the core-shell catalyst, which increased the electrochemical surface area and expedited charge dynamics. This resulted in an unprecedented electro-catalytic performance with a faradaic efficiency of 80.2% and 52.6% for C2+ products, ethanol, and a current density of -320 mA cm-2 at -1.0 V (versus reversible hydrogen electrode). Furthermore, the Ag-Cu catalyst exhibited notable stability for 60 hours. Mechanism studies revealed the preferential accumulation of local CO intermediates on the core, followed by migration to the continuous Cu surface for energy-favorable C-C coupling towards ethanol production. Our work highlights interface engineering as a novel design principle for advanced tandem electrocatalysts.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Review
Chemistry, Multidisciplinary
Paramita Saha, Sk Amanullah, Abhishek Dey
Summary: This article discusses the progress in the field of electrochemical CO2RR, focusing on the issue of selectivity and exploring the factors that influence selectivity. Mechanistic investigations of CO2RR, through the detection and characterization of reaction intermediates, provide a basis for developing highly selective CO2RR catalysts.
ACCOUNTS OF CHEMICAL RESEARCH
(2022)
Article
Chemistry, Physical
Benjamin P. Charnay, Zhihao Cui, Melissa A. Marx, Joseph Palazzo, Anne C. Co
Summary: This study investigates the electrochemical reduction of aldehydes to alcohols as a pathway for converting CO2 to alcohols. Experimental results support the proposed mechanism of reducing acetaldehyde and propionaldehyde to ethanol and 1-propanol on a Cu catalyst. Notably, acetaldehyde is selectively reduced to ethanol on Cu, but not on Au, as supported by both experimental observations and DFT calculations.
Article
Engineering, Environmental
Shuo Zhai, Heping Xie, Bin Chen, Meng Ni
Summary: Solid oxide fuel cells (SOFCs) are an efficient and clean device for converting chemical energy into electricity, but the lack of highly catalytic and carbon-tolerant anodes limits their commercial applications. A new strategy is proposed in this study to remove carbon deposition on the anode surface by in-situ formation of alkali metal carbonate. Developments include a multi-phase composite anode and the synthesis of lithium carbonate on the anode surface to enhance catalytic activity and coke removal efficiency.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Heping Xie, Yunpeng Wang, Tao Liu, Yifan Wu, Wenchuan Jiang, Cheng Lan, Zhiyu Zhao, Liangyu Zhu, Dongsheng Yang
Summary: This study proposes a novel electrochemical CO2 mineralization strategy for red mud treatment, driven by hydrogen-cycled membrane electrolysis, to efficiently mineralize CO2 and recover carbon and sodium resources while producing mineralized products with economic value. The system effectively recovers carbon and sodium resources in the red mud treatment process, with an average electrolysis efficiency of 95.3% and high-purity (99.4%) NaHCO3 product. It also demonstrates the ability to directly and efficiently mineralize flue gas CO2 without the need for additional capturing, presenting a potential strategy for carbon neutralization.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Cheng Lan, Heping Xie, Yifan Wu, Bin Chen, Tao Liu
Summary: Electrochemical seawater splitting using efficient electrocatalysts is an appropriate method for producing green hydrogen. This study developed a noble metal-free electrocatalyst Mo-Ni3S2/NF, which demonstrated exceptional oxygen evolution reaction activity and could operate continuously in alkaline seawater for 500 hours.
Review
Energy & Fuels
Idris Temitope Bello, Shuo Zhai, Qijiao He, Chun Cheng, Yawen Dai, Bin Chen, Yuan Zhang, Meng Ni
Summary: Protonic ceramic fuel cells (PCFCs) are considered a potential and more efficient upgrade to conventional solid oxide fuel cells (SOFCs) due to their efficient operation at low and intermediate temperatures and nonfuel dilution at the anode during operation. This review provides a detailed exposition of material development strategies for major components of PCFCs and discusses credible science-backed recommendations for synthesis and fabrication of PCFCs materials. Additionally, the opportunities, challenges, and future directions for P-SOFCs are highlighted as well.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Physics, Applied
Daqin Guan, Jian Zhong, Hengyue Xu, Yu-Cheng Huang, Zhiwei Hu, Bin Chen, Yuan Zhang, Meng Ni, Xiaomin Xu, Wei Zhou, Zongping Shao
Summary: This study introduces tensile strain into perovskite materials through a facile thermochemical reduction method, improving material performance in the oxygen-evolving reaction. By modulating solid-liquid tension, the hydrophobic perovskite is transformed into a hydrophilic one, enhancing the adsorption of hydroxyl reactants. Surface-sensitive and bulk-sensitive absorption spectra confirm the effectiveness of this strategy in introducing oxygen vacancies and transforming local structures. Theoretical computations reveal reduced energy barriers for hydroxyl adsorption and optimized electron transport.
APPLIED PHYSICS REVIEWS
(2022)
Article
Thermodynamics
Heping Xie, Hailong Liao, Shuo Zhai, Tao Liu, Yifan Wu, Fuhuan Wang, Junbiao Li, Yuan Zhang, Bin Chen
Summary: Using aqueous Zn-CO2 batteries with an efficient perovskite cathode, Pd-doped La2CuO4, enables effective CO2 reduction and storage, providing a promising alternative to traditional energy-intensive methods. The doping of Pd enhances the CO2 reduction reaction, resulting in increased current density and Faraday efficiency. The findings highlight the potential for perovskite catalysts in Zn-CO2 batteries and the effectiveness of Pd doping in improving battery performance.
Article
Multidisciplinary Sciences
Heping Xie, Zhiyu Zhao, Tao Liu, Yifan Wu, Cheng Lan, Wenchuan Jiang, Liangyu Zhu, Yunpeng Wang, Dongsheng Yang, Zongping Shao
Summary: This article introduces a method for direct seawater electrolysis for hydrogen production, which can solve the problems of side reactions and corrosion. In the experiment, this method stably operated for over 3200 hours under practical application conditions. The method is efficient, size-flexible, scalable, and has high practical value without increasing the operation cost.
Article
Engineering, Environmental
Yuan Zhang, Junbiao Li, Heping Xie, Zhipeng Liu, Suling Shen, Ying Teng, Daqin Guan, Shuo Zhai, Yufei Song, Wei Zhou, Bin Chen, Meng Ni, Zongping Shao
Summary: By utilizing a CO2-induced reconstruction strategy, a BaCO3 shell with both oxygen incorporative and robust properties was successfully built on a self-assembled composite cathode made of BaFeO3-delta perovskite. The resulting cathode exhibited enhanced ORR activity, durability, and thermomechanical compatibility.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Materials Science, Multidisciplinary
Yunhong Jiang, Heping Xie, Lu Han, Yuan Zhang, Yanhuai Ding, Suling Shen, Bin Chen, Meng Ni
Summary: As the lightest member of the transition metal disulfides family, TiS2 has attracted increasing attention due to its large specific surface area, adjustable band gap, good visible light absorption, and good charge transport properties. This review summarizes the recent advances in the syntheses and applications of TiS2 in energy storage, electronic devices, and catalysis. The synthesis of TiS2 can be divided into solid phase, liquid phase, and gas phase. Its applications include energy storage, electronic devices, and catalysis, with potential for future development.
PROGRESS IN NATURAL SCIENCE-MATERIALS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Hua Zhang, Minshen Zhu, Hongmei Tang, Qiongqiong Lu, Ting Yang, Xiaoyu Wang, Bin Chen, Zhe Qu, Xia Wang, Minghao Yu, Daniil Karnaushenko, Dmitriy D. Karnaushenko, Yang Huang, Oliver G. Schmidt, Kai Zhang
Summary: Rechargeable Zn-air batteries face limitations due to the redox potential of O-2/O2- chemistry in an alkaline electrolyte, resulting in low operating voltages. An asymmetric electrolyte configuration, with a thin and ionically conductive membrane, is proposed to boost the voltage. The use of a Zn ion-exchange membrane and a bifunctional electrocatalyst enables the reversible O-2/O2- reaction in an acidic medium, resulting in an asymmetric Zn-air battery with high energy density and structural stability.
ENERGY STORAGE MATERIALS
(2023)
Article
Energy & Fuels
Liang-Yu Zhu, Tao Liu, Zhi-Yu Zhao, Yi-Fan Wu, Dong-Sheng Yang, Xiang-Chao Shi, Zhi-Qiang Liu, Fei-Fei Lu, Pei Qin, Xiao-Liang Gao
Summary: A technology for in-situ substance-preserved, moisture-preserved, and light-preserved coring was developed in this study. It stores the original information of rocks in real time by forming a solid sealing film during coring. The experimental results demonstrate the feasibility of film formation and the ability of the film to protect core samples in the in-situ environment.
Article
Engineering, Environmental
Fangsheng Liu, Tengpeng Wang, Jiajie Li, Tao Wei, Zhengmao Ye, Dehua Dong, Bin Chen, Yihan Ling, Zongping Shao
Summary: This study developed SOEC-type reactors for ethanol-assisted water electrolysis, which efficiently converts bio-ethanol into pure hydrogen energy. By loading catalysts in the anode support, efficient reforming of ethanol and fuel oxidation are achieved, along with steam electrolysis. The use of Ni-based materials for both anode and cathode results in low resistance and stable electrolysis performance. Therefore, this study has demonstrated an efficient method for generating green hydrogen energy from renewable sources.
CHEMICAL ENGINEERING JOURNAL
(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)