Article
Materials Science, Coatings & Films
Li Qiao, Zhibo Yang, Xiuwan Li, Deyan He
Summary: By utilizing an electrospinning method followed by plasma-enhanced chemical vapor deposition technology, researchers have successfully prepared fullerene-like carbon core/silicon shell/titanium electrodes, which exhibit improved electrochemical properties compared to uncoated electrodes, including higher initial Coulombic efficiency, more stable cycle performance, higher capacity, and excellent rate capability.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Physical
Zixin Dai, Huizhen Ke, Zhiwen Long, Rongrong Li, Chu Shi, Xiaolei Su, Hui Qiao, Keliang Wang, Ke Liu
Summary: The CoFe2O4/PPy composite nanofibers prepared by electrospinning technique and polymerization method showed superior electrochemical performance in lithium ion batteries, with high reversible capacity and cycling efficiency. The covering of polypyrrole helped improve the conductivity and structural stability of the material.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jian Yu, Chaoran Zhang, Weidong Wu, Yuankun Cai, Yafei Zhang
Summary: Silicon has garnered attention for its high specific capacity and abundant reserves, but its volumetric changes during charging and discharging processes have hindered industrial utilization. This study introduces a novel hybrid anode material, Si@void/CNF, designed with a nodes-connected structure that provides both a conductive reticulation for silicon nanoparticles and addresses volume variation. By adjusting the mass ratio of silicon to PMMA, an optimal structure was achieved, demonstrating excellent electrochemical performance with high specific capacity and cycling stability. The electrospun structure of nodes-connected Si@void/CNF offers a promising method for fabricating advanced silicon-based anode materials.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Xuepeng Ni, Zhe Cui, Hongxia Luo, Huifang Chen, Chenglin Liu, Qilin Wu, Anqi Ju
Summary: In this study, three types of flexible 3D-interconnected carbon nanofibers were prepared and used as substrates for vertically grown ultrathin MoSe2 nanosheets. The resulting composites were employed as freestanding anodes for lithium-ion batteries, with the hollow multi-nanochannel structure of NHMCFs delivering the highest capacity after 400 cycles at 1 A g-1. The multi-nanochannel structure in NMCFs and NHMCFs helps alleviate volume changes during charge-discharge processes, while the uniform coating of MoSe2 nanosheets on NHMCFs increases mass loading and capacity.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Huiying Lu, Ruifeng Qian, Lei Zhu, Tianhao Yao, Chao Li, Li Li, Hongkang Wang
Summary: Metal oxides have the potential to replace commercial graphite as anode materials for lithium ion batteries, with the controllable synthesis of amorphous/crystalline MnCo2Ox nanoparticles within porous carbon nanofibers showing promising results. The optimized material delivers high stable capacity and excellent electrode performance, attributed to the synergistic effect of its unique structure.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Yu Xin, Haoyi Mou, Chang Miao, Shuqing Nie, Minyue Wen, Guowen He, Wei Xiao
Summary: The SnCu-SiO2 @ CNFs composite nanofibers were successfully fabricated, resulting in improved structural integrity and electrochemical performance of the composite electrodes. The encapsulation of Sn-Cu alloy particles in CNFs and the incorporation of SiO2 mitigated phase separation and increased Li+ diffusion coefficient. The facile strategy offers prospective guidance for alloy anodes in energy storage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Electrical & Electronic
Hongquan Yu, Yutian Deng, Baojiu Chen, Yong Zhang, Hong Zhao
Summary: BiFeO3, GdFeO3, and GdFeO3/graphene nanofibers were synthesized using electrospinning technique. Their structure, size, and morphology were characterized by various techniques. The electrochemical performance of these nanofibers for lithium-ion batteries was evaluated, and the GdFeO3/graphene composite showed superior performance compared to BiFeO3 and GdFeO3 nanofibers.
JOURNAL OF ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Xijun He, Xiaodong Wang, Ming Tang, Han Zhang, Yu Wang
Summary: This study presents a ZnP2 @NPCNFs composite as a binder-free anode for LIBs, showing superior electrochemical performance. The composite improves conductivity, buffers volume changes, and inhibits nanoparticle aggregation to achieve high cycling stability and capacity retention.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Biochemistry & Molecular Biology
Changyong Song, Chao Gao, Qinggang Peng, Magdi E. Gibril, Xiaohui Wang, Shoujuan Wang, Fangong Kong
Summary: This study introduces a novel electrospun nanofibrous consisting of polyimide blended with lignin as a new bio-based separator for lithium-ion batteries. Compared with commercial polypropylene separators, the PI-L membrane has better affinity, higher ionic conductivity and liquid absorption properties, and improves the battery's cycle and rate performance. It has the potential to replace the current polypropylene separators in lithium metal batteries.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Energy & Fuels
Muhammad Amirul Aizat Mohd Abdah, Marliyana Mokhtar, Lee Tian Khoon, Kamaruzzaman Sopian, Nurul Akmaliah Dzulkurnain, Azizan Ahmad, Yusran Sulaiman, Federico Bella, Mohd Sukor Su'ait
Summary: P-CNFs/PEDOT/MnO2, developed as an advanced anode material through innovative combination of electrospinning, carbonization, and electrodeposition, exhibits promising electrochemical performance with high discharge capacity and low charge-transfer resistance. The experimental results suggest that this electrode has the potential to replace commercial graphite in lithium-ion batteries.
Article
Materials Science, Multidisciplinary
Madhuri Patil, Hyungil Jang, Sung-Hwan Han, Ketan P. Gattu, Dipak A. Tonpe, Vishnu V. Kutwade, Ramphal Sharma
Summary: In this study, copper sulfide (CuS) nanoparticles and CuS/polyaniline (PANI) nanocomposite were successfully synthesized using chemical precipitation and in situ polymerization methods. The samples were characterized using various techniques including UV-visible spectroscopy, scanning electron microscopy (SEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller measurements (BET), and thermogravimetric analysis (TGA). The synthesized CuS/PANI electrode exhibited excellent electrochemical performance, with a coulombic efficiency of 98.5% and excellent cyclic stability over 500 cycles. These findings suggest that the CuS/PANI electrode has great potential for use in lithium-ion batteries.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Aashray Narla, Wenbin Fu, Alp Kulaksizoglu, Atsushi Kume, Billy R. Johnson, Ashwin Sankara Raman, Fujia Wang, Alexandre Magasinski, Doyoub Kim, Mohammed Kousa, Yiran Xiao, Samik Jhulki, Kostiantyn Turcheniuk, Gleb Yushin
Summary: Current lithium-ion battery separators made from polyolefins suffer from low porosity, low wettability, and slow ionic conductivity, leading to potential safety hazards. To address these issues, a composite membrane made of poly(vinylidene fluoride-co-hexafluoropropylene) nanofibers functionalized with nanodiamonds (NDs) is introduced, which exhibits thermal resistance, mechanical robustness, and ionic conductivity. The ND-functionalized nanofiber separator enables high-capacity and stable cycling of lithium cells, outperforming conventional polyolefin separators.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Materials Science, Multidisciplinary
Fangyi Shi, Chunhong Chen, Zheng-Long Xu
Summary: This paper summarizes the advancement in utilizing electrospun nanofiber materials for optimizing post-Li ion battery technology, emphasizing the correlation between morphology, surface chemistry, structure, and performance, and provides insights into future design directions.
ADVANCED FIBER MATERIALS
(2021)
Article
Chemistry, Physical
Tao Li, Shouwu Gao, Kun Li, Guiju Liu, Xiaoli Sheng, Dawei Shang, Limin Wu, Shaojuan Chen, Yiqian Wang, Shaohua Wu
Summary: In this study, novel nanocomposite membranes constructed with Mo-based compound nanocrystals loaded carbon nanofibers (CNFs) were successfully generated by a combination of electrospinning molybdenum acetylacetone-contained polyacrylonitrile (PAN) solution and subsequent annealing process. Different types of Mo-based nanocrystals were formed with the increase of annealing temperature. The generated CNF-based nanocomposite membranes exhibited high specific capacity and excellent cycling stability, making them suitable for various flexible electrochemical devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Yao Xiao, Zhen Zhang, Zhao Ma, Guangxue Zhang, Chuanqi Feng
Summary: ZnFe2O4/C nanofibers were successfully synthesized using electrospinning method combined with heat treatment, and their electrochemical performances in lithium ion batteries were investigated. The results demonstrated high specific capacities and excellent cycle stability, indicating the potential of ZnFe2O4/C as an anode material for lithium ion battery applications.
Article
Materials Science, Textiles
Muhammad Mushtaq, Rahim Jindani, Amjad Farooq, Xin Li, Hina Saba, Muhammad Wasim, Qufu Wei, Qasim Siddiqui
Summary: In this study, a poly(DMAEMA) graft PLA nanofibrous membrane was prepared by grafting 2-dimethylaminoethyl methacrylate (DMAEMA) monomers onto poly(lactic acid) (PLA) nanofibers using atom transfer radical polymerization. Quaternization of the PLA nanofibers was achieved using bromoethane. The characterization of the poly(DMAEMA)-g-PLA membranes was performed using various analytical techniques. The results indicated that the best diameter regularity was obtained at a concentration of 12%.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Article
Materials Science, Textiles
Yue Sun, Xin Li, Dawei Li, Huizhen Ke, Qufu Wei
Summary: A BC/MIL-53 (Al)-F127 composite membrane was synthesized with efficient adsorption of bisphenol A in aqueous solution, showing great potential in sewage treatment as a prospective sorbent.
JOURNAL OF INDUSTRIAL TEXTILES
(2022)
Review
Materials Science, Multidisciplinary
Jieyu Huang, Min Zhao, Yi Hao, Qufu Wei
Summary: Bacterial cellulose (BC) as a natural biomaterial plays a significant role in the development of new generation sensors due to its low cost, renewability, biodegradability, 3D porous structure, mechanical flexibility, and robustness. This article briefly introduces three construction strategies of BC-based functional sensing materials and focuses on recent advances in various sensing applications of BC. Finally, it presents an outlook on the future prospects for developing BC-based functional sensing materials.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Materials Science, Multidisciplinary
Shuanglin Wu, Jiayi Shi, Xiaolin Nie, Yingmei Yao, Feng Jiang, Qufu Wei, Fenglin Huang
Summary: A thin molecular sieve film made of beta-cyclodextrin was used to decorate the surface of an electrospun cellulose acetate membrane as the separator for lithium-sulfur batteries. The beta-cyclodextrin physically blocked and chemically trapped polysulfides, while also dramatically speeding up ion transport. The addition of graphite carbon as the upper current collector further improved the battery performance. This study demonstrates the potential of the funnel effect of the separator for fast charging of lithium-sulfur and other lithium secondary batteries.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Engineering, Environmental
Di Wang, Zhiyu Li, Li Yang, Jin Zhang, Yuhui Wei, Quan Feng, Qufu Wei
Summary: Researchers have introduced a novel bacterial cellulose reinforced hydrogel electrolyte for constructing flexible and safe quasi-solid state supercapacitors. The electrolyte exhibits excellent mechanical properties, anti-swelling performance, and high ionic conductivity, particularly in sub-zero temperatures. This work provides insights into the design of strong, antifreezing, anti-swelling, and highly conductive hydrogel electrolytes, paving the way for developing extremely safe wearable storage devices.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Alfred Mensah, Shiqin Liao, Jeremiah Amesimeku, Pengfei Lv, Yajun Chen, Qufu Wei
Summary: Biomechanical and nanomechanical energy harvesting systems have led to extensive research on sustainable alternatives using biopolymeric-based devices. These devices, such as piezoelectric, triboelectric, and hybrid nanogenerators, are made from innovative flexible composite films. By enhancing the films with multiwalled carbon nanotubes and post-poling effects, the modified versions have achieved high voltage and current outputs. These biopolymeric composites show potential in magnetoelectric systems and are desirable for multifunctional energy harvesters and electronic devices.
Article
Chemistry, Multidisciplinary
Chonghui Fan, Yuxin Zhang, Zhiwen Long, Alfred Mensah, Qingqing Wang, Pengfei Lv, Qufu Wei
Summary: A moisture-wicking nonwoven metafabric is reported, which combines radiative cooling and evaporative heat dissipation to achieve high-performance thermal and moisture comfort management. It demonstrates excellent selectivity and wettability, and can reduce the risk of excessive sweating by enabling fast evaporation of sweat. The cooling performance of the metafabric can be regulated by applying strains, offering innovative applications in sustainable energy, smart textiles, and thermal wet comfort.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Hongfei He, Mingyang Dong, Qingqing Wang, Jin Zhang, Quan Feng, Qufu Wei, Yibing Cai
Summary: Inspired by fruit growth, a strategy for the preparation of multifunctional phase change materials based on carbon-based porous materials was proposed. The composite demonstrated excellent performance in temperature management, photo/electrical thermal conversion, multi-driver thermo-electric generation, and electromagnetic interference shielding. It provided a novel route for the preparation of multifunctional phase change composites and had broad application prospects in advanced thermal management, energy conversion, and EMI shielding.
Article
Energy & Fuels
Xiugui Zhang, Mingyang Dong, Junqing Shi, Qingqing Wang, Qufu Wei, Yibing Cai
Summary: In order to improve the applicability in some extreme environments, research efforts have been conducted using carrier materials loaded with phase-change materials (PCMs). Wheat bran, which is often ignored and discarded, was utilized as a biomass carrier to incorporate polyethylene glycol (PEG) and fabricate composite PCMs.
Article
Polymer Science
Yang Wang, Zhuquan Li, Shiqin Liao, Yan Kong, Qingqing Wang, Qufu Wei
Summary: In this study, a sandwich-like structured bacterial cellulose/zeolite (BC/zeolite) hybrid hemostat was successfully fabricated through an in situ biosynthesis process. This hemostat effectively addresses the potential thrombotic risk caused by tiny zeolite residue in bleeding wounds. The BC/zeolite-Ca hemostat, after calcium ion-exchange process, significantly reduces the in vitro blood clotting time from 7.5 +/- 0.3 min to 2.2 +/- 0.3 min. This work provides a low-cost, eco-friendly, and low-risk approach for pre-hospital hemostasis applications through in situ biosynthesis of BC- and zeolite-based hybrid materials.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Yi Hao, Yanan Zhang, Alfred Mensah, Shiqin Liao, Pengfei Lv, Qufu Wei
Summary: This paper reports a wet-spun fiber with scalable fabrication and knittability by copolymerizing dopamine-modified MXene and MXene/TPU fibers. The resulting fiber exhibits high stretchability, good conductivity, and reliable stability. The fiber-based triboelectric nano-generator constructed from this fiber shows stable electrical energy output even after multiple bending. The scalable integrated fabric made from this fiber can be used for energy harvesting and human motion sensing.
Article
Nanoscience & Nanotechnology
Xiaojuan Tian, Xinyue Cheng, Shiqin Liao, Juanfen Chen, Pengfei Lv, Qufu Wei
Summary: Fiber-based supercapacitors (FSCs) have desirable flexibility and wearability, but their development in practical applications is hindered by low capacity and insufficient fiber strength. In this study, MnO2 nanomaterials with regulatable crystalline structure were synthesized, and MnO2/rGO hybrid fibers were successfully prepared, achieving improved electrochemical performance and fiber strength for FSCs.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Yajun Chen, Shiqin Liao, Alfred Mensah, Qingqing Wang, Qufu Wei
Summary: Inspired by sandcastle worms, researchers have developed a novel powder that can rapidly absorb bodily fluids and transform into a hydrogel, exhibiting fast and strong wet adhesion to adipose tissues. This hydrogel has excellent extensibility and self-healing ability, as well as hemostasis, antibacterial properties, and biocompatibility, making it suitable for a wide range of biomedical applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Chonghui Fan, Zhiwen Long, Yuxin Zhang, Alfred Mensah, Hongfei He, Qufu Wei, Pengfei Lv
Summary: Wearable triboelectric nanogenerators (TENGs) with high flexibility and electric output are desirable in wearable electronics. This study addresses the challenge of achieving versatile integration and thermal comfort when wearing TENGs by fabricating an ultra-stretchable, waterproof, and air/moisture permeable nonwoven textile. The integrated TENG system demonstrates excellent triboelectric output and radiative cooling performance, making it suitable for powering small electronics and monitoring human movements.
Article
Chemistry, Physical
Yang Wang, Xiaolin Nie, Zihao Lv, Yi Hao, Qingqing Wang, Qufu Wei
Summary: This study designed a hybrid aerogel patch for rapid hemostasis and effective antibacterial treatment. The patch, modified with carbon quantum dots (CQDs) on 2-dimensional metal-organic framework (MOF) nanosheets, showed enhanced photodynamic activity and good biocompatibility. This patch holds potential for achieving rapid hemostasis and effective anti-infection in early-stage traumatic wound treatment.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2024)
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)