Article
Chemistry, Physical
Mehdi Zarei, Salman Nourouzi, Roohollah Jamaati, Irene Garcia Cano, Sergi Dosta, Maria Sarret
Summary: Nanoporous tin oxide films were formed on cold-sprayed tin coating via modified electrochemical anodization, with crystallization aided by hot water. The morphology and crystallinity of the films were investigated through XRD, FESEM, and TEM, showing that crystallized tin oxide was formed through dissolution-precipitation mechanism. The texture coefficient and degree of preferred orientation were affected by different conditions during annealing, with variations observed in different samples.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Coatings & Films
Mehdi Zarei, Salman Nourouzi, Roohollah Jamaati, Irene Garcia Cano, Sergi Dosta, Maria Sarret
Summary: In this study, self-organized nanoporous tin oxide films were prepared on cold sprayed tin and tin foil through a voltage-controlled anodization method. A simple way to achieve a completely open nanoporous structure was reported. The porous structures prepared on cold sprayed tin and tin foil were found to be different, and annealing at 350 degrees Celsius was identified as the highest applicable temperature to maintain the nanoporous structure and substrate adhesion.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Nan Gao, Chen Wang, Yanjie Xue, Haitao Ma, Yunpeng Wang, Jinwei Cao
Summary: In this study, a simple continuous electrochemical synthesis strategy was proposed to build 3D hierarchical hybrid conductive networks. The strategy involved sequential template electrodeposition-anodization and in-situ aniline electro-polymerization. The resulting hierarchical metal oxide framework demonstrated enhanced electron transport and structural stability, solving the dead surface problem in energy storage. This multifaceted approach opens up new possibilities for designing efficient binder-free hybrid electrode materials.
MATERIALS RESEARCH BULLETIN
(2023)
Article
Physics, Condensed Matter
Naima Ennassiri, Artjom Roth, Hamid Ez-Zahraouy, Mohammed Es-Souni
Summary: A simple method for fabricating self-ordered CoFe2O4 nanoporous oxide layers by electrochemical anodization is reported in this letter. Optimal electrolyte and anodization conditions were used to achieve an ordered nanoporous structure of CoFe2O4. Characterization by SEM, EDS, and XRD confirmed the nanopores size remained constant at 15 nm regardless of anodization potential, and the transformation of the as-anodized nanoporous oxide layers into CoFe2O4 phase was confirmed.
SOLID STATE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Milad Laghaei, Mohsen Ghasemian, Mahmoud Reza Ghandehari Ferdowsi, Juerg A. Schuetz, Lingxue Kong
Summary: This study investigates the fabrication of nanoporous composites of titanium-vanadium oxide using magnetron sputtering, electrochemical anodization, and annealing processes. The effect of varying vanadium sputtering power on the composite semiconductors and their photodegradation performance was studied. The results showed that the composite with the lowest vanadium content exhibited the highest degradation efficiency under solar-simulated irradiation due to its homogeneous vanadium dispersion and lower recombination possibility.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Electrochemistry
Dae-Woong Hwang, Hyun Ju Yang, Heejung Kang, Je Hyun Bae, Taek Dong Chung
Summary: This article introduces a new method for fabricating nanoporous electrodes and investigates the enhanced catalytic activity. By self-assembling nanocubes, small and uniform pores can be formed in the electrode, improving the reactivity. Moreover, nanoporous electrodes also have the characteristic of rapid mass transfer.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
Magdalena Gurgul, Marcin Koziel, Leszek Zaraska
Summary: Soaking nanoporous tin oxide layers in water initially enhances their photoelectricchemical performance, but prolonged exposure leads to degradation of their properties, including widening of band gap and deterioration of activity under sunlight.
Article
Energy & Fuels
Xuewen Chen, Song-Zhu Kure-Chu, Jiacheng Liu, Takashi Matsubara, Yoko Sakurai, Takehiko Hihara, Sung-Hyung Lee, Minoru Osada, Masazumi Okido
Summary: In this study, nanoporous titanium dioxide films were prepared using a smart anodization method, with the addition of glycine and ethanol to improve conductivity and nanoporous structures. The as-prepared TiO2-TiO films exhibited high initial discharge capacity and cycling stability as a lithium-ion battery anode.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Chemistry, Physical
Jiaqian Yin, Zeyu Xu, Ziwei Xiao, Haibo Shao, Jianming Wang
Summary: A high-performance porous Si@Sn composite material was successfully synthesized using a photo electrochemical deposition strategy, showing excellent lithium storage performance under optimized conditions.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Analytical
Mehdi Zarei, Salman Nourouzi, Roohollah Jamaati, S. H. Esmaeili-Faraj, Irene Garcia Cano, Sergi Dosta, Maria Sarret
Summary: Tin oxide film with regular nano-channels was formed on the surface of cold sprayed tin coating by anodizing, and annealing the samples with water led to crystalline particles formation on the inner surface. The electrochemical performance of the nanoporous tin oxide film was evaluated, showing specific capacitance and enhancement of the active surface area. The investigation of orientation effect on capacitance revealed positive effects of (020) and (031) orientations but a sharp decrease in capacity for (110) and (011) orientations.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Applied
Yasmin M. S. Jamil, Mohammed Ahmed Hussein Awad, Hussein M. A. Al-Maydama, Yassine EL-Ghoul, Ahmed N. Al-Hakimi
Summary: In this study, TiO2 nanotubes were synthesized and used as a support for the deposition of nickel oxide nanoparticles, resulting in an electrocatalyst with high activity and stability for methanol oxidation in alkaline solutions. This research is significant for exploring the application of nanotube materials in electrocatalytic reactions.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Mehdi Zarei, Salman Nourouzi, Roohollah Jamaati, Irene Garcia Cano, Maria Sarret, Sergi Dosta, S. H. Esmaeili-Faraj
Summary: In this study, a hybrid electrode consisting of a nanoporous tin oxide thin film and carbon nanotubes was fabricated on a tin cold sprayed coating. The presence of carbon nanotubes in the structure of the electrode results in a uniform distribution of carbon nanotube particles and high conductivity, leading to improved electrochemical performance. The nanoporous tin oxide-CNT hybrid electrode exhibits higher capacitance compared to the nanoporous tin oxide electrode, indicating its potential application in energy storage.
DIAMOND AND RELATED MATERIALS
(2023)
Article
Electrochemistry
Magdalena Gurgul, Karolina Syrek, Marcin Koziel, Lukasz Pieta, Leszek Zaraska
Summary: A comprehensive study on the electrochemical growth mechanism of hierarchical SnOx nanostructures was conducted. It was found that the initially compact oxide layer gradually transformed into characteristic crater-like structures with prolonged anodization time. The obtained materials exhibited highly porous slopes with cracked morphology. XRPD and Raman spectroscopy confirmed the presence of SnO and Sn3O4 forms in the thermally treated samples. Moreover, the annealed samples showed promising photocatalytic performance, with a degradation efficiency of approximately 84% after 180 minutes of irradiation.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Shi Nee Lou, Melvin Choon Heng See, Sean Lim, Neeraj Sharma, Jason Scott, Da-Wei Wang, Rose Amal, Yun Hau Ng
Summary: A direct thin film approach was used to fabricate large-surface MoS2 nanosheet thin film supercapacitors. The charge storage performances of the thin films exhibited an unusual increase in capacitance on extended cycling. This enhancement in capacitance was attributed to the nucleation of a new MoS2-xOx phase during cycling, shifting the charge storage process from diffusion-limited to capacitive-dominant.
Article
Crystallography
Ewa Wierzbicka, Karolina Syrek, Klaudia Maczka, Grzegorz D. Sulka
Summary: High surface area, self-organized nanoporous ZrO2 arrays with perfect adhesion to Zr substrate were synthesized by anodization in an aqueous electrolyte. The obtained semiconductor materials were tested as photocatalysts for decolorization of methyl red. The photocatalytic efficiency could be improved by annealing at a relatively low temperature of 350 degrees C, but higher annealing temperatures caused a gradual drop in activity.
Article
Engineering, Industrial
Chen Zheng, Yushu An, Zhanxi Wang, Xiansheng Qin, Benoit Eynard, Matthieu Bricogne, Julien Le Duigou, Yicha Zhang
Summary: Robotic manufacturing systems are an effective solution for modern manufacturing enterprises to address customer demands and market competition. However, these systems may not fully satisfy user requirements due to differences between user and design perspectives. A user-customised design approach is needed to alleviate the burden on designers. The authors propose a knowledge-based engineering method to aid users in customising the architectures of robotic manufacturing systems.
INTERNATIONAL JOURNAL OF PRODUCTION RESEARCH
(2023)
Article
Nanoscience & Nanotechnology
Yingchao Li, Junsong Zhang, Martin Saunders, Yang Ren, Hong Yang, Yinong Liu
Summary: By utilizing the principles of lattice strain matching and collective atomic load transfer, ultralarge elastic strains were induced in a brittle NiTi-Nb3Sn eutectic composite, where Nb3Sn lamellae achieved a remarkable elastic lattice strain of -2.4%. This study both tests the applicability of lattice strain matching in brittle materials and explores a novel fabrication approach for in-situ composites via eutectic solidification.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Agricultural Engineering
Jianbo Li, Xiaofei Long, Hongyan Zhu, Zhuo Liu, Xiaofeng Lu, Dongke Zhang
Summary: In this paper, the fusibility of biomass ashes with different chemical and mineral compositions was studied using HT-XRD technique. It was found that ash fusion temperatures (AFTs) increased in the order of walnut shell (WS) < wheat straw (WHS) < peanut shell (PES) < pine sawdust (PS). The chemical compositions of the ashes played a role in these differences. HT-XRD analysis revealed the presence and disappearance of K-bearing minerals in WS ash, the release of KCl and formation of K silicates or aluminosilicate in WHS ash, and the identification of SiO2, MgO, CaAl2Si2O8, and CaAl2SiO6 in PES ash. The macro- and micro-morphological analysis confirmed the sintering behavior of the different ashes at various temperatures.
BIOMASS & BIOENERGY
(2023)
Article
Thermodynamics
Shanshan Zhu, Qiang Xu, Ruoyue Tang, Jian Gao, Zhandong Wang, Jiaying Pan, Dongke Zhang
Summary: The oxidation of ammonia in the presence of dimethyl ether was studied in a jet-stirred reactor at atmospheric pressure. The effects of DME addition on the NH3-NH2 pathway and the formation of nitrogen oxides were investigated. Experimental analysis using a synchrotron vacuum ultraviolet photoionization mass spectrometer and a gas chromatograph was conducted to analyze reaction intermediates and products. A kinetic model for NH3/DME oxidation was developed, and it was found that DME significantly promotes the formation of NH2 and nitrogen oxides under different temperature conditions.
COMBUSTION AND FLAME
(2023)
Article
Physics, Applied
Feng Liu, Kunfeng Chen, Chao Peng, Dongfeng Xue
Summary: This study investigates the multiscale behaviors of sapphire crystal growth along different crystal directions through theoretical and experimental studies. The results show that the growth behavior of sapphire along the c-axis is more complex compared to that along the a- and m-axes, involving solid-liquid and solid-solid transformations. Moreover, an abrupt change in the interfacial structure inhibits the transformation of liquid Al2O3 into α-Al2O3 along the c-axis.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Physical
Chun Cai, Dantong Zhang, Qi Zhang, Kunfeng Chen, Wenchao Hua, Chao Peng, Dongfeng Xue
Summary: The stability of lattice oxygen and transition metal sites in LiNi0.8Co0.1Mn0.1O2 (NCM811) cathode were systematically explored, and the importance of manganese was demonstrated. The effects of lithium vacancies on lattice oxygen and transition metal were investigated through vacancy formation energy, unpaired spins, and net charge. This study provides insights into oxygen release and transition metal dissolution in Ni-rich NCM811.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Yuru Zha, Daqiang Jiang, Yinong Liu, Genfa Kang, Hui Zhang, Xiaohua Jiang, Lishan Cui
Summary: By observing the Elinvar effect in non-magnetic Co-doped TiNi alloys, we added a small amount of Nb to Ti50Ni41Co9 alloy with low Co content to regulate the phase transformation behaviors and induce Elinvar effect. The effects of Nb content on the phase transformation behaviors and temperature dependences of elastic moduli were studied. Ti50Ni41Co9 alloy exhibited B2->R phase transformation during cooling, but it was suppressed by the increase of Nb content and converted to a continuous transformation over a broad temperature range.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Agricultural Engineering
Sabar Pangihutan Simanungkalit, Isabelle Jones, Chiemeka Onyeka Okoye, Zhezi Zhang, Mingming Zhu, Dongke Zhang
Summary: The possibility of direct methanol synthesis from biomass pyrolysis syngas using Cu/ZnO/Al2O3 catalysts was investigated. Methanol yield was influenced by temperature, pressure, and time on-stream. The presence of CO2 in the syngas resulted in decreased catalyst performance, while CH4 did not affect performance. This research provides insights into the challenges of producing methanol from unconventional syngas and motivates future work to develop a robust catalyst for H2-deficient and CO2-rich syngas.
BIOMASS & BIOENERGY
(2023)
Article
Materials Science, Multidisciplinary
Yingchao Li, Sam Bakhtiari, Hong Yang, Martin Saunders, Daqiang Jiang, Yinong Liu
Summary: This study investigated the effects of various point defects on the monoclinic angle of the B19 '' martensite in NiTi. It was found that different defects have different effects on the monoclinic angle, which in turn affects the characteristic strains of the alloy. These findings may provide insights into the variations of recoverable transformation strains of NiTi shape memory alloys observed experimentally.
SHAPE MEMORY AND SUPERELASTICITY
(2023)
Article
Materials Science, Multidisciplinary
Bashir S. Shariat, Yinong Liu
Summary: This study investigated the variation of the Poisson's ratio of a NiTi alloy during pseudoelastic deformation. The results showed that the Poisson's ratio of the alloy changed at different stages.
SHAPE MEMORY AND SUPERELASTICITY
(2023)
Article
Chemistry, Multidisciplinary
Fei Liu, Mengying Zhao, Kunfeng Chen, Mei Hu, Dongfeng Xue
Summary: This work demonstrates that Ce3+-regulated CoNi-LDHs significantly enhance the kinetics of electron transfer and ion motion by increasing layer positive charges and weakening O-H bonds. The addition of Ce3+ also decreases the energy barrier of proton diffusion and increases the hole carrier concentration, resulting in high rate capacitance and fast charge storage kinetics.
Article
Chemistry, Multidisciplinary
Xianjie Zhang, Feng Liu, Kunfeng Chen, Guilin Zhuang, Chao Peng, Dongfeng Xue
Summary: Investigating the liquid structure of yttrium aluminum garnet (YAG) at high temperatures is significant for various fields, and molecular dynamic simulations were used to study the structure of YAG within a certain temperature range and to grow a YAG single crystal. The coordination number and bond length between cations and anions changed after melting, which can be explained by Pauling's third rule. In the liquid YAG, the coordination number decreased and the main structural units were AlO4 and YO7, which provided insight into phase selection and enabled rapid growth of YAG using the Czochralski method.
Article
Nanoscience & Nanotechnology
Zibing An, Shengcheng Mao, Cheng Jiang, Ziyao Li, Shichang Wu, Yadi Zhai, Li Wang, Yinong Liu, Ze Zhang, Xiaodong Han
Summary: A high-entropy alloy (HEA) with low stacking fault energy and high strength was designed using the principle of heterostructure strengthening. The alloy exhibited a multi-scale heterogeneous microstructure containing hierarchical twins. It achieved ultrahigh yield strength, ultimate tensile strength, and large ductility at low temperature, surpassing most FCC HEAs reported so far and breaking the strength-ductility trade-off of conventional metal alloys. The extraordinary mechanical properties were attributed to a suitable strain hardening capability resulting from the synergistic effect of hetero-deformation-induced hardening, twinning-induced plasticity, and deformation-induced phase transformation.
SCRIPTA MATERIALIA
(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)
