Article
Energy & Fuels
Junghwan Kim, Jusung Han, Hyejin Kim, Kihyun Kim, Hyunhee Lee, Eunki Kim, Wonjae Choi, Jong-Chan Lee
Summary: Thermally cross-linked SPEEK membranes containing ABPBI-GO show significantly enhanced physico-chemical stabilities due to the formation of well-developed cross-linked structures through chemical bonds and acid-base interactions, resulting in decreased vanadium ion permeability while maintaining high proton conductivity. The ionic selectivity of the membrane is approximately 8 times larger than that of Nafion, leading to higher coulombic, voltage, and energy efficiencies in VRFB cells compared to Nafion membranes.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Chemical
Wanting Chen, Bo Pang, Xiaoming Yan, Xiaobin Jiang, Fujun Cui, Xuemei Wu, Gaohong He, Afzal
Summary: The novel oxidized black phosphorus nanosheet (O-bPn) improves ion selectivity in sulfonated poly (ether ether ketone) (SPEEK) membrane for vanadium redox flow battery (VRFB). The unique 2D puckered lattice structure of O-bPn acts as an effective blocker for vanadium ion permeability, promoting proton transport and reducing vanadium crossover. The composite membrane with O-bPn demonstrates higher coulombic and energy efficiency, and superior performances compared to Nafion212 membrane.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Xiaoyu Meng, Qiwang Peng, Jihong Wen, Kai Song, Luman Peng, Tianyu Wu, Chuanbo Cong, Haimu Ye, Qiong Zhou
Summary: This study improved the ion selectivity of SPEEK membrane by utilizing the Donnan effect of imidazole cations in ionic liquids and immobilizing the ionic liquids using porous covalent organic framework materials. The composite membrane exhibited improved cell performance with high coulombic and energy efficiencies. The proposed membrane is cost-effective and high-performing for vanadium redox flow batteries.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Polymer Science
Gang Wang, Miaomiao Zhang, Zhenhua He, Jie Zhang, Jinwei Chen, Ruilin Wang, Aijun Teng, Yu Dai
Summary: A novel amphoteric ion exchange membrane composed of SPEEK and APP was developed for VRFB, showing excellent proton conductivity and low vanadium ion permeability, with higher selectivity and stability compared to Nafion115 and SPEEK membranes. The designed membrane demonstrated higher coulombic efficiency, comparable voltage efficiency, and higher energy efficiency, as well as good durability, making it a promising separator for VRFB.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Chemistry, Physical
Bengui Zhang, Minghui Zhao, Qian Liu, Xueting Zhang, Yanshi Fu, Enlei Zhang, Guosheng Wang, Zhigang Zhang, Xinchen Yuan, Shouhai Zhang
Summary: This study introduces novel positively-charged PyPEKK membranes for VRFB, derived from an environmentally-friendly method. These membranes exhibit low area resistance, low vanadium permeability, impressive energy efficiency, stable performance, and are highly promising for VRFB application.
JOURNAL OF POWER SOURCES
(2021)
Article
Chemistry, Physical
Jing Li, Fei Xu, Yanbo Chen, Yuyang Han, Bencai Lin
Summary: A series of sulfonated poly(ether ether ketone)(SPEEK)-based ionic exchange membranes were prepared by introducing sulfonated Schiff base network-type (SSNW-1) covalent organic frameworks. The membranes showed enhanced properties for application in vanadium redox flow batteries (VRFBs), with reduced vanadium permeability and improved efficiency.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Engineering, Chemical
Xuechun Lou, Bo Lu, Murong He, Yuesheng Yu, Xiaobo Zhu, Fei Peng, Chengpeng Qin, Mei Ding, Chuankun Jia
Summary: Sulfonated polyether ether ketone (SPEEK) composite membranes with sulfonic acid substituents-functionalized carbon black (FCB) particles as fillers show outstanding performance, including excellent ion selectivity, low vanadium permeability, high proton conductivity, and excellent stability. The VRFB cell with the optimized SPEEK/FCB composite membrane exhibits high energy efficiency, low-capacity fade rate, and long cycle life.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Jianfeng Xu, Shu Dong, Pan Li, Wenhao Li, Feng Tian, Junran Wang, Qingqing Cheng, Zhouying Yue, Hui Yang
Summary: The development of a novel ether-free amphoteric ionic exchange membrane with long alkyl chains and zwitterionic groups shows high stability, low swelling ratio, and excellent proton conductivity. Compared to Nafion212 membrane, the optimized TA15-SPBP membrane exhibits higher ion selectivity and better electrical efficiencies.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Yuning Chen, Shouhai Zhang, Qian Liu, Xigao Jian
Summary: A novel amphoteric ion exchange membrane Q/S-M was proposed for VRB applications, showing higher water content and ion diffusion rate compared to conventional membranes, with superior chemical stability and durability. The membrane demonstrated advantages in both performance and longevity.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Sanaz Abbasi, Antoni Forner-Cuenca, Wiebrand Kout, Kitty Nijmeijer, Zandrie Borneman
Summary: In this study, cost-effective dense membranes for hydrogen-bromine flow batteries were developed by blending proton-conductive sulfonated poly(ether ether ketone) (SPEEK) with inert poly(vinylidene fluoride) (PVDF) to improve ionic conductivity and bromine diffusion properties. The use of wire-electrospinning enhanced the performance of the membranes, but the decreased thickness and insufficient stability of the membrane containing 80/20 SPEEK/PVDF led to rapid decay in cycling performance. This research promotes a long-term comparison study between the low-cost wire-electrospun SPEEK/PVDF blend membranes and typically used PFSA membranes for HBFB performance.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Chetan M. Pawar, Sooraj Sreenath, Bhavana Bhatt, Devendra Y. Nikumbe, Wasim F. G. Saleha, Rajaram K. Nagarale
Summary: This work reports new approaches to enhance the inhibition of sulfonated poly ether ether ketone (SPEEK) membranes towards vanadium ions in flow batteries. The first approach involves thermal annealing of SPEEK membranes, which strengthens the polymer matrix. The second approach involved replacing the labile proton of SPEEK with benzimidazole, providing protection against hydrolytic decomposition of sulfonic acid, followed by thermal annealing. The third approach focused on creating a barrier layer for vanadium ions through the coating of polyethyleneimine on SPEEK membranes, followed by thermal treatment. The study demonstrated that the SPEEK-PEI membrane exhibited the best performance, showing the least diffusion coefficient and resulting in the highest Coulombic efficiency and energy efficiency in vanadium redox flow batteries.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Engineering, Chemical
Jun Long, Wenheng Huang, Jingfeng Li, Yafei Yu, Bo Zhang, Jinchao Li, Yaping Zhang, Hao Duan
Summary: In this study, a branched sulfo-nated polyimide membrane with ideal aperture size of 0.26-0.32 nm was successfully synthesized. The ce-bSPI-60 membrane demonstrated superior physico-chemical properties compared to other membranes. It showed higher coulomb efficiencies (CEs) and energy efficiencies (EEs) than the commercial Nafion 212 membrane. Additionally, the ce-bSPI-60 membrane exhibited excellent durability with no noticeable structural changes after 1000-time cycles.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Zhaoqi Wang, Shouhai Zhang, Qian Liu, Yuning Chen, Zhihuan Weng, Xigao Jian
Summary: A series of new side-chain substitution poly(phthalazinone ether ketone)s were synthesized and a new anion exchanged membrane (QAPPEK-P) used for vanadium redox flow batteries was prepared, demonstrating improved cell performance with increasing ion-exchange capacity related to the content of side-chain phenyl groups.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Environmental
Yifan Xia, Hailin Yu, Chengyun Yuan, Yinghan Wang
Summary: The evaluation of in situ crosslinked membranes for VRFB applications shows that the crosslinked structure effectively improves membrane performance, leading to higher energy efficiency and stability.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Chemical
Yu Xia, Yan Wang, Hongyan Cao, Shuhao Lin, Yongsheng Xia, Xiaoxuan Hou, Yulin Wu, Ying Yu, Kang Huang, Weihong Xing, Zhi Xu
Summary: In this study, a polymer with intrinsic microporosity (PIM) was successfully introduced into a highly sulfonated polyether ether ketone membrane, solving the issues of poor mechanical property and low vanadium resistance. This provides a new route for the preparation of high-performance ion exchange membranes for flow batteries.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Huiqin Mao, Haixia Wang, Jing Li, Lei Zhang, Jiangyue Shi, Haifeng Shi
Article
Engineering, Chemical
Yuxia Zhang, Haixia Wang, Penghua Qian, Lei Zhang, Yong Zhou, Haifeng Shi
Summary: The hybrid membrane of Sulfonated Poly(ether ether ketone)/Polydopamine-coated Carbon Nanotubes loaded Phosphotungstic Acid (S/DCNTs-HPW) shows high ion selectivity and excellent charge capacity retention, making it a potential alternative for Proton Exchange Membranes in Vanadium Redox Flow Battery systems.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Polymer Science
Jie Yang, Jincheng Dong, Yangpeng Wang, Xiao Zhang, Binyuan Liu, Haifeng Shi, Lirong He
Summary: In this study, a series of bio-based comb-like polymers with different lengths of alkyl chains were successfully synthesized using a novel synthetic method. The structure and thermal properties of these polymers were investigated in-depth, revealing a significant impact of side-chain length on phase transition behavior. By modulating the length of the side chains, the phase transition temperature and enthalpy of the polymers can be controlled.
Article
Polymer Science
Huiqin Mao, Yanpeng Wang, Haixia Wang, Lang Li, Haifeng Shi
Summary: SMACnN comb-like polymers were prepared with poly[styrene-co-(maleic anhydride)] and n-alkylamine as chemical spacer, exhibiting crystallization behavior attributed to alkyl side chains. The melting temperature and enthalpy of side-chain crystallites increased with side-chain length, requiring at least 12 carbon atoms for hexagonal crystal packing. Chemical spacer between side chain and main chain influenced side-chain crystallite formation and phase transition.
POLYMER INTERNATIONAL
(2022)
Article
Energy & Fuels
Shuqin Li, Haixia Wang, Huiqin Mao, Lang Li, Haifeng Shi
Summary: A series of PTA/BN composite PCMs with high thermal conductivity and good energy storage capability are developed in this study, showing excellent thermal stability.
JOURNAL OF ENERGY STORAGE
(2021)
Article
Energy & Fuels
Lei Zhang, Yunhu Jiang, Haixia Wang, Penghua Qian, Jiaxuan Sheng, Haifeng Shi
Summary: Sulfonated poly(ether ketone)-based hybrid membranes with sulfonated titanium dioxide (S-TiO2) as performance modifiers were fabricated via solution-casting, showing superior ion selectivity and vanadium ion resistance. The cell assembled with SPEEK/S-TiO2-3 membrane demonstrated higher coulombic efficiency and energy efficiency compared to Nafion 117, with good structural stability and durability after 200 charge-discharge cycles due to intramolecular interaction.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Engineering, Chemical
Penghua Qian, Haixia Wang, Jiaxuan Sheng, Yong Zhou, Haifeng Shi
Summary: This study developed sulfonated poly(ether ether ketone)-based membranes containing amphoteric functionalized nanofibrous network. The acid-base interaction between SP@f and SPEEK constructs highly conductive proton channel and compatible interfaces. The composite membrane exhibits superior proton conductivity and chemical stability, while maintaining high voltage and energy efficiencies in VRFB single cell.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Penghua Qian, Haixia Wang, Lei Zhang, Yong Zhou, Haifeng Shi
Summary: Sulfonated poly(ether ether ketone) (SPEEK) based composite membranes with sulfonated poly(aryl ether sulfone) (SPAES) exhibit enhanced proton transport channel and ion selectivity, resulting in higher coulombic and energy efficiencies for vanadium redox flow batteries.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Penghua Qian, Lang Li, Haixia Wang, Jiaxuan Sheng, Yong Zhou, Haifeng Shi
Summary: By constructing synergistic proton transport channels in a composite membrane, a new amphoteric membrane is developed to address the trade-off between proton conduction and ion permeation. It shows significantly improved proton conductivity and ion selectivity compared to a commonly used membrane (Nafion 212), and exhibits superior energy efficiency, charge capacity retention, and cycle stability.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Jiaxuan Sheng, Lang Li, Haixia Wang, Lei Zhang, Shuai Jiang, Haifeng Shi
Summary: Sulfonated poly(ether ether ketone) (SPEEK)-based hybrid membranes (S/GO-VIPS) were fabricated by solution blending method using amphoteric GO-VIPS nanofillers prepared by grafting VIPS onto GO flakes. The interfacial interaction between SPEEK and GO-VIPS contributes to enhanced membrane structures and performance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Shuai Jiang, Haixia Wang, Lang Li, Caiyuan Zhao, Jiaxuan Sheng, Haifeng Shi
Summary: A sulfonated poly(ether ether ketone)-based composite membrane is developed by introducing dual-sulfonated flexible comb-like polymer. The composite membrane exhibits ultrahigh proton conductivity and excellent cell performance at ultralow contents of the polymer.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Energy & Fuels
Caiyuan Zhao, Yunfei Song, Haixia Wang, Lang Li, Haifeng Shi
Summary: Sulfonated poly(ether ether ketone)-based hybrid membranes (S/GO-DA) functionalized with graphene oxide (GO) nanofillers have been successfully fabricated. These membranes exhibit outstanding physicochemical properties and excellent battery performance, outperforming traditional materials in ion selectivity, vanadium ion permeability, energy efficiency, and durability.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Multidisciplinary
Chuang Li, Zefeng Cui, Min Yang, Haifeng Shi, Binyuan Liu
Summary: A series of 1-butene/pentafluorophenylundec-1-ene ester random copolymers were synthesized under the Ziegler-Natta catalyst system. The introduction of biocompatible poly(ethylene glycol) methyl ether (mPEG) into the side chain of PB enhanced the crystallization rate and phase transition rate of the polymer. The regularity of the PB structure is crucial in determining the rate of crystallization and phase transition.
Article
Chemistry, Multidisciplinary
Penghua Qian, Yunhu Jiang, Haixia Wang, Lei Zhang, Haifeng Shi
Summary: Introducing sulfonated polyphenylene sulfide with a rigid main chain into a SPEEK-based proton exchange membrane enhances proton conductivity and dimensional stability. The blend membrane at 15 wt% SPPS content shows superior proton conductivity, ion selectivity, voltage efficiency, energy efficiency, cycling stability, and charge capacity retention compared to Nafion 117, demonstrating exceptional structural stability and durability.
MATERIALS CHEMISTRY FRONTIERS
(2021)
Article
Chemistry, Physical
Penghua Qian, Haixia Wang, Yunhu Jiang, Yong Zhou, Haifeng Shi
Summary: A series of composite proton-exchange membranes composed of SPEEK and SPPTA were prepared through a solution-blending technique. The membranes showed a trade-off balance between proton conductivity and vanadium ion permeability, exhibiting high ion selectivity and excellent performance in vanadium redox flow battery applications. The SPEEK/SPPTA composite membranes demonstrated structural stability and long-term durability, with high voltage efficiency and energy efficiency, making them a promising candidate for use in vanadium redox flow batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
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)
