Article
Engineering, Environmental
Seung Jae Moon, Hyo Jun Min, Chang Soo Lee, Du Ru Kang, Jong Hak Kim
Summary: A solid-state electrolyte film with high ionic conductivity, flexibility, and self-adhesive properties was developed based on a fluorinated, microphase-separated comb copolymer. The film showed excellent performance in solid supercapacitors, outperforming conventional electrolytes. This innovative electrolyte film eliminates the need for separators, adhesives, or packaging processes in supercapacitor fabrication.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Ying Wei, Wei Chen, Xinyi Ge, Jiayi Liang, Zheng Xing, Qingguo Zhang, Zhong-Xia Wang
Summary: This article introduces a method of preparing free-standing ionogels through double-additive induced physical cross-linking. The ionogels prepared using this method have excellent mechanical and electrochemical properties, making them suitable for applications in flexible electronic devices and wearable electronic skin.
Article
Chemistry, Multidisciplinary
Hailiang Sheng, Antai Zhu, Lihua Zhang, Jun Huang, Tongjun Yang, Shangdong Qin, Fazhi Zhang, Qinqin Xu, Haibo Xie
Summary: By utilizing the dissolve of chitosan in the [EMIM][OAc]/GVL organic electrolyte solution (OES) and its high ionic conductivity, a sustainable chitosan/nano-SiO2 nanocomposite organic ionogel electrolyte (CSOIE) was successfully prepared, which exhibited desired electrochemical performance and mechanical properties. The CSOIE demonstrated outstanding ionic conductivity and compressive stress over a wide temperature range, and the flexible supercapacitor using CSOIE displayed excellent capacitive performance and long-term stability.
Article
Chemistry, Physical
YiFan Tang, Yuchuan Xiong, Liping Wu, Xin Xiong, Tao Me, Xianbao Wang
Summary: A composite ionogel-inMXene electrolyte (CIME) based on PVDF-HFP and MXene is designed, which exhibits high Li+ transference number and ionic conductivity. The CIME shows excellent cycle stability and electrochemical performance in solid-state lithium-metal batteries.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Chao Lu, Yunxuan Chen, Xinpeng Yu
Summary: Solid ionogel electrolytes with superior mechanical and electrical properties are critical to electrochemical power sources. Existing ionogel electrolytes are mainly based on three frameworks, including pristine polymers, co-polymers, and cross-linking polymers. But ionogel electrolytes coupling different networks are seldom reported. Here, double-network ionogel electrolytes have been developed, showing high ionic conductivity and mechanical strength, as well as long cycle life for super-capacitors.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Woo Jin Hyun, Cory M. Thomas, Lindsay E. Chaney, Ana Carolina Mazarin de Moraes, Mark C. Hersam
Summary: Ionogel electrolytes have several benefits but limited processing methods. In this study, a screen-printable ionogel electrolyte based on hBN nanoplatelets was developed, achieving favorable electrochemical properties and mechanical flexibility.
Article
Chemistry, Physical
Xianhong Chen, Ling Liang, Weida Hu, Haiyang Liao, Yongqi Zhang
Summary: A novel polymer poly(ionic liquid)s ionogel with excellent flexibility and flame retardancy has been developed in this study. The ionogel shows high ionic conductivity and lithium ion mobility, leading to significant rate performance and cycling stability in batteries. It has potential applications in high safety flexible electronic devices.
JOURNAL OF POWER SOURCES
(2022)
Article
Chemistry, Multidisciplinary
Yaoguang Song, Xiaolei Zhang, Peter A. A. Klusener, Peter Nockemann
Summary: Investigating the effects of different cross-linking agents on templating synthesis of mesoporous carbons for supercapacitors, it was found that the type of cross-linker and its ratio with precursor monomer are crucial for resulting pore architecture and electrochemical performance of the materials. Glyoxal was identified as a promising cross-linker for generating ordered mesopores, leading to higher capacitance in supercapacitor electrodes compared to formaldehyde and glyoxylic acid. This study provides insights for customizing mesoporous carbons by selecting suitable cross-linking agents and ratios.
Article
Chemistry, Physical
Chen-Hsueh Lin, Po-Hsin Wang, Wei-Ni Lee, Wei-Cheng Li, Ten-Chin Wen
Summary: Chitosan (CS) is investigated as a hydrogel electrolyte for symmetric pseudo solid-state supercapacitors. The higher the degree of carboxylation (DC), the better the hydrogel's hydrophilicity, water retention capability, and supercapacitor performance. Among all hydrogel electrolytes tested, CCS6 exhibits the best overall performance with the highest DC, smallest ion diffusion resistance, largest electrochemical window, and highest specific capacitance.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Multidisciplinary
Sangwon Cho, Junyoung Lim, Yongsok Seo
Summary: A novel process for manufacturing thin and flexible electrodes using MXene and PEDOT materials has been developed. The electrospray deposition technique has solved the issue of layer restacking and resulted in high double-layer capacitance.
Article
Engineering, Chemical
Qian Shan, Qihui Ding, Wei Wu
Summary: In this work, we developed a new method for the preparation of Ti3C2 MXene (MXene-DES) with few layers and a high degree of hydroxylation. The method involved the use of a deep eutectic solvent (DES)-assisted electrochemical ultrasonic composite exfoliation, which is easy to scale up. The MXene-DES exhibited improved properties compared to MXene-N-2, including fewer layers, larger interlayer spacing, higher degree of hydroxylation, and stronger oxidation resistance. This strategy provides a simple, low-cost, and environmentally friendly approach to the scalable preparation and application of antioxidative high-quality MXene.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Rosa M. Gonzalez-Gil, Mateu Borras, Aiman Chbani, Tiffany Abitbol, Andreas Fall, Christian Aulin, Christophe Aucher, Sandra Martinez-Crespiera
Summary: A new gel polymer electrolyte (GPE) based supercapacitor with high ionic conductivity has been synthesized by combining an ionic liquid with nanocellulose. The addition of nanocellulose improved the printability of the gel. The new supercapacitor showed good electrochemical performance.
Article
Energy & Fuels
Shrishti Sharma, M. Dinachandra Singh, Anshuman Dalvi
Summary: This study reports the fabrication and characterization of all-solid-state supercapacitors utilizing a conductive filler dispersed solid polymer electrolyte. The research demonstrates that the electrical conductivity of the CSPE membranes is closely related to the EDLC performance, with the LATP content in the membranes playing a crucial role in enhancing capacitance. Additionally, EDLC cells with LATP dispersed CSPE exhibit improved stability during thermal cycling between 40 degrees C and 80 degrees C.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Chemical
Pei Xu, Hanyang Chen, Xin Zhou, Hongfa Xiang
Summary: A series of composite gel polymer electrolytes (GPEs) based on PVDF-HFP, [EMIM][TFSI], LiTFSI, and rGO-PEG-NH2 were successfully prepared by solution casting method. The 3P5E2LG-10 GPE exhibited good conductivity and lithium ion transport properties at 30 degrees Celsius.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Jinwoo Park, Jeong-Yun Sun
Summary: As the demand for energy storage devices increases, electrolytes play a crucial role in supercapacitors (SCs). A phase-transitional ionogel was synthesized and used to fabricate an SC. The ionogel exhibited a change in phase from crystal to amorphous as temperature increased. This phase transition resulted in a decrease in resistivity, an increase in capacitance, and stable performance. The SC could switch between operating mode and storage mode, showing significant suppression of self-discharge in the storage mode.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Chunxian Xing, Haoran Da, Peng Yang, Jiawei Huang, Min Gan, Jian Zhou, Yong Li, Haitao Zhang, Binghui Ge, Linfeng Fei
Summary: The direct recycling of degraded NCM (LiNi0.5Co0.2Mn0.3O2) cathode materials from spent lithium-ion batteries is more environmentally and economically attractive than present metallurgical treatments. A two-step method is designed to recycle the degraded NCM materials by utilizing aluminum impurity from the attached current collector to compensate for transition metal vacancies and restore the structure. This regeneration protocol simplifies the industrial recycling process and produces high-quality NCM materials with excellent electrochemical performance.
Article
Chemistry, Physical
Haoran Da, Shanshan Pan, Jin Li, Jiaqi Huang, Xuedi Yuan, Haotian Dong, Jiaxin Liu, Haitao Zhang
Summary: Recycling valuable elements such as Li, Co and Ni from spent cathode materials has gained attention, but the regeneration of spent graphite anode has been overlooked. This study proposes a sustainable method to repair the broken surface structure of graphite anode and recover its electrochemical performances. Coating the graphite with polymethyl methacrylate (PMMA) forms an artificial solid electrolyte interphase (SEI) layer, effectively modulating the formation of a homogeneous bilayer SEI configuration.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Physical
Qinqin Ruan, Meng Yao, Junfeng Lu, YanLei Wang, Jing Kong, Haitao Zhang, Suojiang Zhang
Summary: Bilayer composite solid-state electrolytes (CSSEs) are promising for high-voltage lithium metal batteries, but their compatibility and Li+ migration process often lead to impedance and deteriorated performance. To address this issue, a Janus electrolyte with mortise and tenon joints (JCSSE) is proposed. It consists of two layers with intimate contact and regulated Li+ coordination. The optimized JCSSE shows high ionic conductivity and wide electrochemical window, resulting in remarkable cycling performance and stability for high-voltage lithium metal batteries.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Jiajia Li, Haiman Hu, Wenhao Fang, Junwei Ding, Du Yuan, Shuangjiang Luo, Haitao Zhang, Xiaoyan Ji
Summary: LiF-rich solid-electrolyte-interphase (SEI) can inhibit the growth of lithium dendrites and enhance the performance of lithium metal batteries. This study investigates the impact of Li-salt composition on SEI characteristics and reveals the formation of LiF. The results show that F-connecting bonds have a greater influence on SEI properties than molecular size and F element contents.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Meng Yao, Qinqin Ruan, Yangyang Wang, Liyu Du, Qiongguang Li, Lv Xu, Ruji Wang, Haitao Zhang
Summary: A novel dual-polymer@inorganic network composite polymer electrolyte (DNSE@IN) with high ionic conductivity and excellent mechanical properties is proposed. The DNSE@IN shows significant cycling stability in high-energy lithium metal batteries and has potential practical applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xuedi Yuan, Tao Dong, Jiaxin Liu, Yingyue Cui, Haotian Dong, Du Yuan, Haitao Zhang
Summary: By introducing a bi-affinity electrolyte formulation with ethyl vinyl sulfone and fluoroethylene carbonate as additives, a stable interphase layer is formed on the electrode, preventing the dissolution of transition metal ions and electrolyte decomposition.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Environmental
Jiaqi Huang, Haitao Zhang, Xuedi Yuan, Yifan Sha, Jin Li, Tao Dong, Yuting Song, Suojiang Zhang
Summary: A strategy for constructing a robust interphase layer using an unsaturated imidazole-based ionic liquid additive ([Vmim1O2][TFSI]) is proposed to stabilize high-voltage Li-rich Li-metal batteries. The ionic liquid with a vinyl group preferentially adsorbs on both the cathode and anode surface, suppressing transition metal ion dissolution and mitigating structural degradation of the electrode. Experimental results show that the Li-metal anode with [Vmim1O2][TFSI]-based electrolyte exhibits stable Li plating/stripping over 750 h, and the full cells with Li1.170Ni0.265Co0.047Mn0.517O2 cathode demonstrate long-term cyclicity with a capacity retention of 87.89% after 350 cycles at 4.8 V.
CHEMICAL ENGINEERING JOURNAL
(2023)
Editorial Material
Chemistry, Multidisciplinary
Haitao Zhang, Du Yuan, Jin Zhao, Xiaoyan Ji, Yi-Zhou Zhang
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Thermodynamics
Xiaohui Yu, Hongna Qiao, Bin Yang, Haitao Zhang
Summary: The rapid growth of renewable energy poses challenges for energy storage technology. Rankine-based Carnot batteries are considered promising due to their high energy density at low temperatures. This study compares three Rankine-based Carnot Battery systems using a heat pump-organic Rankine cycle and finds that the reversible heat pump-organic Rankine cycle performs better in terms of energy and exergy efficiency, as well as levelized cost of storage. The sensitivity analysis demonstrates that the heat source temperature has a significant impact on the reversible heat pump-organic Rankine cycle using a dual-function machine.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Chemistry, Physical
Jiaxin Liu, Tao Dong, Xuedi Yuan, Yingyue Cui, Yawei Liu, Chao Chen, Hongyun Ma, Chang Su, Haitao Zhang, Suojiang Zhang
Summary: An anion synergistic strategy is developed to manipulate the solvation structure and boost the electrochemical performance of high-voltage lithium batteries. The solvation structure is found to enhance the transport kinetics of Li+ effectively and favor the formation of an inorganic-rich interphase. The corrosion of the Al collector is effectively retarded by a cathode-electrolyte interphase (CEI) constructed by the decomposition of DFBOP-.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Ruji Wang, Lipeng Yang, Jin Li, Shanshan Pan, Fengjie Zhang, Haitao Zhang, Suojiang Zhang
Summary: This study proposes a novel Nafion/PVDF/LLZTO ion exchange membrane (IEM) with high ion conductivity and mechanical properties. The optimized IEM has an ionic conductivity of 0.29 mS cm(-1). Experimental and density functional theory (DFT) calculations suggest that the complementary effect between inorganic ceramic fillers LLZTO and polymer materials favors the generation of new Li+ migration expressway and dehydrofluorination. The H-bonding interactions successfully address the poor mechanical strength issues. Moreover, the sandwich-like structure by commercialized PE buffer layer improves stability and effectively suppresses the membrane swelling effect in organic electrolyte. Consequently, assembled slurry pouch cells containing PE/NPL3/PE membrane exhibit extraordinary performance.
Article
Materials Science, Multidisciplinary
Zhouyang Zhang, Yiran Ying, Ziyu Wu, Jiawei Huang, Min Gan, Haitao Zhang, Haitao Huang, Yangbo Zhou, Linfeng Fei
Summary: Single-crystal-to-single-crystal (SCSC) phase transformation is essential for the controllable synthesis of advanced materials. However, understanding the atomic-scale mechanisms during SCSC transformation remains a challenge due to the lack of direct experimental probes. In this study, using in-situ transmission electron microscopy, the nucleation and growth mechanisms of a hexagonal phase in a monoclinic matrix during a heating-induced structural transformation were observed. The findings provide crucial insights into the microscopic mechanisms and kinetics of solid-state phase transitions.
Article
Chemistry, Multidisciplinary
Tianhua Chen, Jiaxin Liu, Dusan Losic, Jian Wang, Haitao Zhang
Summary: A new gel electrolyte is proposed in this study, which is prepared by in-situ polymerization and consists of fluoroethylene carbonate (FEC) solvent and ionic liquid 1-butyl-1-methylpiperidinium bis(trifluoromethylsulfonyl)imide (PP14TFSI). This combination synergistically enhances Li ion transport, improves electrochemical performance, and forms a protective interfacial layer, leading to enhanced cycling stability and coulombic efficiency of the lithium batteries.
Article
Chemistry, Multidisciplinary
Haoran Da, Wenhao Fang, Jiufu Zhu, Jin Li, Shanshan Pan, Jiajia Li, Jiaqi Huang, Haitao Zhang, Suojiang Zhang
Summary: The reutilization of small spent graphite particles with a carbonized polypyrrole layer can improve the rate performance and capacity of lithium-ion batteries, making them suitable for fast-charging applications.
Review
Chemistry, Multidisciplinary
Yanli Zhu, Wei Li, Lan Zhang, Wenhao Fang, Qinqin Ruan, Jin Li, Fengjie Zhang, Haitao Zhang, Ting Quan, Suojiang Zhang
Summary: High-temperature batteries (HTBs) have received significant attention due to their improved thermal stability and power density. This review focuses on the interfacial mechanisms in HTBs, which are difficult to observe in a sealed system at high temperatures. The authors provide characterization methods to study ionic transfer and interphase formation, discussing the formation of interphases and ion transfer at different interfaces. By comparing the interfacial processes in different electrolytes, the influence of electrolyte components on ionic transfer mechanisms is also explored. This review provides valuable insights into the interfacial behaviors of HTBs and offers accessible methods to address the challenges faced by HTBs.
ENERGY & ENVIRONMENTAL SCIENCE
(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)
