Article
Chemistry, Multidisciplinary
Ivana Zrinski, Marvin Loeefler, Janez Zavasnik, Claudia Cancellieri, Lars P. H. Jeurgens, Achim Walter Hassel, Andrei Ionut Mardare
Summary: The aim of this study was to develop memristors based on Nb2O5 by a simple and inexpensive electrochemical anodization process. It was found that the selection of electrolyte played an important role in resistive switching. Anodic memristors grown in phosphate buffer showed improved electrical characteristics, while those formed in citrated buffer exhibited excellent memory capabilities. The chemical composition of oxides was successfully determined using HAXPES and their phase composition and crystal structure were evaluated by TEM.
Article
Nanoscience & Nanotechnology
Pei Cui, Panpan Zhang, Xueli Chen, Xiuli Chen, Tao Wan, Yu Zhou, Mingru Su, Yunjian Liu, Haolan Xu, Dewei Chu
Summary: TiNb2O7 has shown great potential as an anode material for lithium-ion batteries due to its high specific capacity and safety. However, its poor ion and electron conductivity have limited its further development. In this study, we successfully improved the ion and electron transport of TiNb2O7 by doping with chlorine and creating oxygen vacancies. These modifications regulated the energy band and crystal structure, leading to enhanced lithium-ion transport behavior and superior rate performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Aya Hamed, Amr Hessein, Ahmed Abd El-Moneim
Summary: A novel fabrication approach using a CO2 Laser system to achieve real-time doping, reduction, and patterning of graphene oxide-based films has been proposed in this study. Different types of planar supercapacitors were readily fabricated with high nitrogen and sulfur content in the graphene framework, leading to excellent electrochemical performance. The versatility of the proposed approach was demonstrated by achieving higher energy density, power density, and retention rate in flexible graphene-based electrochemical storage devices.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Paolo Canepa, Giorgia Ghiara, Roberto Spotorno, Maurizio Canepa, Ornella Cavalleri
Summary: The growth of anodic oxide on niobium was investigated in a solution containing P and Ca-EDTA complexes. It was found that below the breakdown potential, thin and uniform oxide layers were formed, while above the breakdown potential, thicker and microporous oxide layers were observed with enrichment of Ca and P. An anodizing potential of around 200 V was identified as a good tradeoff between morphological and compositional properties and resistance to corrosion.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Yao Yu, Zhijia Liao, Fanli Meng, Zhenyu Yuan
Summary: This study presents the gas sensing characteristics of sulfur-doped graphene oxide (S-GO), showing optimal sensitivity and short response and recovery time for NH3 detection at room temperature. Theoretical models of graphene and S-doped graphene were established to explain the enhanced sensing performance attributed to improved electrical properties after sulfur doping.
Article
Materials Science, Multidisciplinary
Xiaotian Fang, Jin-Su Oh, Matt Kramer, A. Romanenko, A. Grassellino, John Zasadzinski, Lin Zhou
Summary: In this study, the structural and chemical differences between non-doped and nitrogen-doped niobium cavities were uncovered using transmission electron microscopy and spectroscopy. It was found that nitrogen doping can improve cavity performance by reducing surface resistance.
MATERIALS RESEARCH LETTERS
(2023)
Review
Environmental Sciences
Nian Liu, Zhen Sun, Huan Zhang, Lasse Hyldgaard Klausen, Ryu Moonhee, Shifei Kang
Summary: Bacterial and photocatalysis techniques are widely used for the remediation of ammonia nitrogen wastewater. While traditional microbial methods are proven useful, there is a need for more efficient and controllable treatment methods to address the diverse cases of ammonia nitrogen pollution. Bacterial treatment relies on ammonia nitrogen oxidation-reduction by nitrifying and denitrifying bacteria, but these reactions are slow and uncontrolled. Photocatalysis, on the other hand, has advantages such as low temperature reaction and long life, but cannot perform multiple complex biochemical reactions. This review highlights recent achievements, key problems, and future directions for remediation of high-ammonia-nitrogen wastewater using bacterial treatment and photocatalysis techniques, including the potential of combining bacterial-photocatalysis techniques.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Dongdong Wang, Zhi-Wen Chen, Kaizhi Gu, Chen Chen, Yingying Liu, Xiaoxiao Wei, Chandra Veer Singh, Shuangyin Wang
Summary: Hexagonal-close-packed Co nanosheets exhibit efficient electrocatalytic nitric oxide reduction activity due to their unique electron structures and proton shuttle effect. In Zn-NO batteries, the hcp-Co cathode shows superior power density compared to previously reported performance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Nataliya Vorobyeva, Marina Rumyantseva, Vadim Platonov, Darya Filatova, Artem Chizhov, Artem Marikutsa, Ivan Bozhev, Alexander Gaskov
Summary: This study investigates the impact of tin doping on Gallium(III) oxide for high temperature gas sensors, with a focus on its effect on material conductivity, phase content, microstructure, adsorption sites, and gas sensor properties. The introduction of tin decreases the crystallite size of Ga2O3 and increases the formation temperature of beta-Ga2O3, leading to non-monotonous sensor responses to CO and NH3.
Article
Materials Science, Multidisciplinary
Xiandong Xiong, Jian Yu, Xiaojian Huang, Dan Zou, Yufei Song, Meigui Xu, Ran Ran, Wei Wang, Wei Zhou, Zongping Shao
Summary: Fuel flexibility is a notable advantage of solid oxide fuel cells (SOFCs), and the combination of ammonia fuel and SOFCs technology shows promise for a clean energy system. However, the large-scale application of direct-ammonia SOFCs (DA-SOFCs) is limited by the anode's sintering resistance and catalytic activity. This study proposes a slightly ruthenium (Ru) doping method to promote alloy nanoparticle exsolution, improving the performance and stability of DA-SOFCs.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Pei Cui, Guo-Tai Li, Pan-Pan Zhang, Tao Wan, Mei-Qing Li, Xue-Li Chen, Yu Zhou, Rui-Qiang Guo, Ming-Ru Su, Yun-Jian Liu, De-Wei Chu
Summary: TiNb2O7 doped with W6+ is synthesized by a solid-state method to improve its ionic and electronic conductivity, and enhance the rate performance of lithium-ion batteries. W6+ doping leads to cation mixing and charge compensation, creating a new Li-conductive environment for faster lithium-ion storage and diffusion. Furthermore, W6+ doping also increases the pseudocapacitive contribution and cycle stability of the material. These findings provide insights for the development of electrode materials for lithium-ion batteries.
Article
Chemistry, Inorganic & Nuclear
Seul Ah Kim, Sk. Khaja Hussain, Muhammad A. Abbas, Jin Ho Bang
Summary: In this study, the stability of TiO2 polymorphs was controlled by particle size and doping level. A solid-state high-temperature treatment was used to transform rutile TiO2 to anatase phase, resulting in a mixture of anatase and rutile phases, with anatase being the major phase.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Chemistry, Physical
K. M. Parida, Lekha Paramanik, Sabiha Sultana
Summary: This study demonstrated the efficient nitrogen reduction to ammonia using a combination of cobalt titanate and nitrogen-doped reduced graphene oxide under visible light irradiation. By optimizing the concentration of nitrogen-doped reduced graphene oxide, the production of ammonia was significantly improved, paving the way for the development of highly active catalyst materials for sustainable energy conversion in the future.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Zhichun Liu, Junsheng Liang, Hao Zhou, Hongyi Sun, Wenqi Lu, Biling Wang, Qiang Li, Xin Zhao, Dazhi Wang, Jun Xu
Summary: In this study, various ITO thin films were deposited using RF magnetron sputtering with different nitrogen partial pressures. It was found that the nitrogen partial pressure significantly affected the properties of the films. The 20% N-2 ITO thin film exhibited the best chemical stability and resistance drift rate among all the tested films.
APPLIED SURFACE SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Li Yang, Baiqi Liu, Zongbiao Ye, Chi Yang, Zhijun Wang, Bo Chen, Jianjun Chen, Peng Sha, Chao Dong, Jie Zhu, Zhiling Li, Rong Yan, Rui Ding, Kun Zhang, Fujun Gou
Summary: Different methods were used to analyze the surface morphology and depth composition of nitrogen-doped niobium. The results showed densely distributed trigonal precipitates on the surface after nitrogen doping, and beta-Nb2N was dominant in the topmost 9.7 nm extending to a depth of 575 nm.
Article
Chemistry, Multidisciplinary
Benjamin Apeleo Zubiri, Janis Wirth, Dominik Drobek, Silvan Englisch, Thomas Przybilla, Tobias Weissenberger, Wilhelm Schwieger, Erdmann Spiecker
Summary: This study explores the capabilities of correlative 360 degrees electron tomography (ET) and lab-based nano X-ray computed tomography (Nano-CT) enabling 3D analyses of volumes of up to (60 mu m)(3) with down to nm resolution, as demonstrated for zeolite particles with embedded macropores. By first applying the two techniques to the same particle the higher resolution and fidelity of ET are used to improve the segmentation of pore space in the Nano-CT reconstruction. Extended statistical relevance and access to interparticle pore space are obtained from reconstructions of larger particle agglomerates, using the large-field-of-view mode of the Nano-CT.
ADVANCED MATERIALS INTERFACES
(2021)
Editorial Material
Chemistry, Multidisciplinary
Martin Hartmann, Wilhelm Schwieger, Matthias Thommes
ADVANCED MATERIALS INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Yunpeng Zuo, Tingting Li, Ning Zhang, Tianyun Jing, Dewei Rao, Patrik Schmuki, Stepan Kment, Radek Zboril, Yang Chai
Summary: The process of reducing catalyst size to single-atom level can significantly enhance its catalytic activity. By utilizing a spatially confined synthetic strategy with a specific compound and porous hollow carbon nitride (p-CN), it is possible to mass synthesize metal single-atom catalysts to further improve catalytic activity.
Article
Chemistry, Physical
Hana Kmentova, Olivier Henrotte, Rambabu Yalavarthi, Mareike Haensch, Christian Heinemann, Radek Zboril, Patrik Schmuki, Stepan Kment, Alberto Naldoni
Summary: The highest photocurrent density was achieved for a BiVO4/CdS composite due to enhanced optical absorption properties and charge separation at the heterojunction between BiVO4 and CdS. Additionally, the photostability was substantially increased by protecting the BiVO4/CdS photoanode with a CoOx layer, resulting in a highly stable photocurrent density of about 5 mA cm(-2).
Article
Chemistry, Multidisciplinary
Zhenni Wu, Imgon Hwang, Gihoon Cha, Shanshan Qin, Ondrej Tomanec, Zdenek Badura, Stepan Kment, Radek Zboril, Patrik Schmuki
Summary: Anodic TiO2 nanotubes are shown to have excellent properties for harvesting Pt single atoms from highly dilute solutions. The tube walls provide suitable trapping sites for Pt SAs, and a high activity for photocatalytic H-2 generation can be achieved by immersing the nanotubes in a low concentration Pt solution. Overall, these findings demonstrate the potential of anodic TiO2 nanotubes for efficient Pt extraction and recovery, leading to highly active photocatalysts.
Article
Chemistry, Multidisciplinary
Shanshan Qin, Lancang Shui, Benedict Osuagwu, Nikita Denisov, Alexander B. Tesler, Patrik Schmuki
Summary: The study suggests that octahedral nanocubes with abundant {101} facets in anatase TiO2 nanocrystals produce over 4 times more H2 in photocatalytic H2 evolution compared to nanosheets enriched in {001} facets under co-catalyst-free conditions. However, when samples carry Pt co-catalyst on both {001} and {101} facets, the significance of faceting diminishes, indicating that the beneficial role of faceting is relevant only for co-catalyst-free surfaces.
Article
Energy & Fuels
Shanshan Qin, Nikita Denisov, Johannes Will, Jan Kolarik, Erdmann Spiecker, Patrik Schmuki
Summary: Removing non-active Pt SAs on TiO2 by cyanide leaching dramatically increases the co-catalytic activity of remaining Pt SAs, achieving a remarkable turnover frequency of 4.87 x 10(5) h(-1) for H-2 evolution.
Article
Energy & Fuels
Amer Inayat, Alexandra Inayat, Wilhelm Schwieger, Barbora Sokolova, Pavel Lestinsky
Summary: This study investigates the thermo-catalytic pyrolysis of LDPE using HZSM-5 catalysts with different acid site densities. The results show that the catalyst with the highest acid site density produces the highest concentration of aromatics, while the catalyst with the lowest acid site density produces the highest concentration of C-2-C-4 olefins. These findings are important for the chemical recycling of plastic wastes.
Article
Chemistry, Physical
Amara Nasir, Anca Mazare, Xin Zhou, Shanshan Qin, Nikita Denisov, Lukas Zdrazil, Stepan Kment, Radek Zboril, Tariq Yasin, Patrik Schmuki
Summary: This study presents a low-cost, one-step photocatalytic method for synthesizing graphene oxide (GO) using commercial graphite and grey TiO2. GO formation is achieved through UV illumination of a slurry containing well-dispersed grey TiO2 and commercial graphite. The resulting GO-decorated TiO2 acts as a visible-light-active photocatalyst for applications such as pollutant degradation.
Article
Nanoscience & Nanotechnology
Patrick Hartwich, Christian Pritzel, Manuela S. Killian
Summary: This study proposes an alternative utilization of titanium dioxide by covering surfaces of cement-based materials with a regular-shaped monolayer of photocatalytically active titanium dioxide nanotube arrays. The study also presents a proposal for the synthesis of TiO2 nanotubes and transferring them onto material surfaces, providing the opportunity for applying the material to precast elements.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Chemistry, Physical
Seyedsina Hejazi, Manuela S. Killian, Anca Mazare, Shiva Mohajernia
Summary: The single-atom decoration of TiO2 nanostructures is a promising approach in photocatalytic water splitting, as it helps overcome the scarcity and high cost of noble metals and advances their application.
Article
Chemistry, Physical
Merve Kubra Aktan, Guglielmo Attilio Coppola, Marie Van der Gucht, Tomohiko Yoshioka, Manuela S. Killian, Rob Lavigne, Erik Van der Eycken, Hans P. Steenackers, Annabel Braem
Summary: This study investigates the immobilization of biomolecules on implant surfaces. By combining a bioinspired polydopamine functionalization strategy and alternating current electrophoretic deposition, bovine serum albumin was successfully attached to a metal surface, demonstrating an efficient coating method.
SURFACES AND INTERFACES
(2022)
Review
Engineering, Biomedical
Andreea Mariana Negrescu, Manuela S. Killian, Swathi N. V. Raghu, Patrik Schmuki, Anca Mazare, Anisoara Cimpean
Summary: The progress in nanotechnology has led to the development of metal oxide nanoparticles with unique physicochemical characteristics for biomedical applications. Despite their advantages, these nanoparticles can have cytotoxic effects, which can be reduced by better control of the synthetic parameters.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2022)
Article
Materials Science, Ceramics
Swathi N. V. Raghu, Patrick Hartwich, Adam Patalas, Mateusz Marczewski, Rafal Talar, Christian Pritzel, Manuela S. Killian
Summary: This article describes a facile strategy for imparting nanostructured morphology to commercially available ceramic-preforms used in dentistry. The process involves depositing nanotubular zirconium-oxide membranes onto zirconia ceramic discs at ambient conditions. This simple technique has the potential to enhance the design of "smart" implants in the field of ceramic-biomaterial applications.
Article
Chemistry, Multidisciplinary
Bowen Jin, Seyedsina Hejazi, Hongqi Chu, Gihoon Cha, Marco Altomare, Min Yang, Patrik Schmuki
Summary: This study proposes a strategy to overcome the drawbacks of MoO3 by fabricating electrodes composed of self-ordered one-dimensional (1D) MoTaOx nanotubes synthesized via electrochemical anodization. The resulting MoTaOx nanotubes, composed of octahedral MoO3 and rhombohedral Mo2Ta2O11 phases, exhibit remarkable electrochemical stability and Al-ion storage properties in aqueous electrolytes.
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)
