Article
Energy & Fuels
Aycan Atli, Abdullah Yildiz
Summary: An opaque platinum film as a counter electrode in dye-sensitized solar cells demonstrates enhanced reflectivity, smaller resistance, and excellent adhesion properties. As a result, the DSSC with the opaque platinum film achieves a higher electrical power conversion efficiency compared to the transparent platinum film under the same conditions.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Inorganic & Nuclear
Lu Zhang, Weichao Chen, Ting Wang, Yunjiang Li, Chunhui Ma, Yuxiao Zheng, Jian Gong
Summary: This study presents a one-step strategy for loading PW11Co polyoxometalates on graphene-like Co0.85Se on conductive glass substrates, forming a transparent PW11Co/Co0.85Se composite counter electrode with excellent electrocatalytic performance. The efficiencies of DSSCs using this composite electrode are higher than those with Pt or pure Co0.85Se electrodes, marking the first use of polyoxometalates in bifacial DSSCs and expanding their application in photoelectronic devices.
INORGANIC CHEMISTRY FRONTIERS
(2021)
Article
Polymer Science
Jia-Wun Li, Yu-Sheng Chen, Yan-Feng Chen, Jian-Xun Chen, Chung-Feng Jeffrey Kuo, Liang-Yih Chen, Chih-Wei Chiu
Summary: Polymer-assisted dispersants were used to stabilize nanohybrids of platinum nanoparticles (PtNPs) and carbon nanotubes (CNTs) for DSSCs, showing high photoelectric conversion efficiency. The PtNPs/CNTs nanohybrids as counter electrode materials exhibit excellent conductivity and redox potential, providing a cost-effective alternative to traditional FTO glass electrodes.
Article
Materials Science, Multidisciplinary
Ariane Aparecida de Lima, Gidea Taques Tractz, Andreia Gerniski Macedo, Fabiano Thomazi, Paulo Rogerio Pinto Rodrigues, Cesar Augusto Dartora
Summary: This study found that incorporating niobium pentoxide in the counter electrode of dye-sensitized solar cells can significantly improve its performance. Compared to using only poly(3,4-ethylenedioxythiophene) polystyrene sulfonate, the addition of niobium pentoxide reduces charge transfer resistance and increases photo-electrochemical parameters, resulting in improved collection efficiency of the cell.
Article
Materials Science, Multidisciplinary
Manik Chandra Sil, Hong-Da Chang, Jhih-Jhu Jhan, Chih-Ming Chen
Summary: Research on a polymeric layer of poly(spiroBiProDOT) as a better replacement of electrocatalytic platinum on counter electrodes of dye-sensitized solar cells (DSSCs) has shown promising results, with improved charge transfer and efficiency compared to traditional Pt and PEDOT materials. The use of an ordered thiophene moiety connected by a spiro linkage in poly(spiroBiProDOT) leads to higher photocurrent density, contributing to the enhanced cell efficiency.
JOURNAL OF MATERIALS CHEMISTRY C
(2021)
Article
Materials Science, Multidisciplinary
J. Luo, J. C. Liu, Z. Q. Zhao, S. H. Sun, Y. Zhu, Y. M. Hu
Summary: Orthogonal Cu3SnS4 (CTS) nano-crystals were synthesized, with Cu7S4 seeds forming first at 130 degrees C and orthorhombic CTS nano-crystals forming at 180 degrees C. Selenization at 500 degrees C for 20 minutes resulted in the formation of CTSXSe4-X, which showed good conductivity and electrocatalytic activity for I-3(-) reduction when used as counter electrodes in dye-sensitized solar cells. The optimal 1.7 μm thick CTSXSe4-X counter electrode achieved a power conversion efficiency of 7.57%.
Article
Chemistry, Physical
Shanmuganathan Venkatesan, Dornauli Manurung, Hsisheng Teng, Yuh-Lang Lee
Summary: Different methods were used to fabricate PEDOT/Pt and PEDOT-Pt composite films as counter electrodes for dye-sensitized solar cells. It was found that PEDOT/Pt film exhibited the highest efficiency, while the PEDOT-Pt film showed the lowest efficiency. X-ray analysis revealed that Pt in the PEDOT/Pt film maintained a crystalline structure with slight interaction with PEDOT, while Pt in the PEDOT-Pt film was amorphous. The crystalline Pt and its interaction with PEDOT were identified as the key factors contributing to the high efficiencies of the corresponding cells.
JOURNAL OF POWER SOURCES
(2022)
Article
Physics, Applied
Mathew K. Francis, P. Balaji Bhargav, N. Santhosh, Nafis Ahmed, C. Balaji, R. Govindaraj
Summary: MoS2-based transition metal dichalcogenide nanoflowers were synthesized using the hydrothermal method in this study to examine their potential as a counter electrode in dye-sensitized solar cells (DSSCs). MoS2-HCP counter electrode showed better electrochemical performance with 5% power conversion efficiency achieved. The bifacial concept of DSSC was demonstrated with 2.2% power conversion efficiency under rear-side illumination.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Paul K. Ngumbi, Simon W. Mugo, James M. Ngaruiya, Sebusi Odisitse, Cecil K. King'ondu
Summary: The study investigated the plasmonic influence of gold nanoparticles on the performance of graphene-platinum nano-composite counter electrodes in dye-sensitized solar cells. The results showed that the synergy of graphene and gold nanoparticles in the platinum-based counter electrodes could significantly enhance the efficiency of the solar cells.
Article
Electrochemistry
Suman Kushwaha, Sudip Mandal
Summary: A non-platinum metal catalyst TiNx-C was synthesized through high-pressure pyrolysis method, which exhibited comparable electrical performance with Pt in dye-sensitized solar cell. Replacing Pt with inexpensive TiNx-C can lower the cost of DSSC.
JOURNAL OF SOLID STATE ELECTROCHEMISTRY
(2023)
Article
Chemistry, Physical
Hina Pervaiz, Zuhair S. Khan, Nadia Shahzad, Ghulam Ali, Naseem Iqbal, Sofia Javed
Summary: This study introduces a method for synthesizing and depositing organic/inorganic composite ink for the preparation of counter electrodes in flexible dye-sensitized solar cells. The results demonstrate that the composite ink-based counter electrodes exhibit higher catalytic activity, power conversion efficiencies, and redox diffusion rate compared to traditional counter electrodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Energy & Fuels
Abdelaal S. A. Ahmed, Wanchun Xiang, Fatma S. M. Hashem, Xiujian Zhao
Summary: By preparing CB-SiO2 composite as CEs for DSSCs, higher electrocatalytic activity and power conversion efficiency can be achieved. Increasing the thickness of CE significantly enhances the performance of the devices.
Article
Chemistry, Inorganic & Nuclear
Arimakula Chamatam Kasi Reddy, Maddala Gurulakshmi, Parnapalli Muni Mounika, Ambapuram Meenakshamma, Katta Venkateswarlu, Yorva Pedda Venkata Subbaiah, Mitty Raghavender
Summary: Counter electrodes (CEs) for dye-sensitized solar cells (DSSC) were fabricated using poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate (PEDOT:PSS) and platinum (Pt) solution, with high transparency and adhesion on an FTO glass substrate, through the Marker pen lithography coating method. The morphology and roughness of the PEDOT:PSS-MPL and Pt-MPL CEs were analyzed using scanning electron microscopy (SEM) and atomic force microscopy (AFM), while the electrochemical properties were evaluated using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The device performance was assessed through current density-voltage (J-V) measurements, with the Pt-MPL and PEDOT:PSS-MPL CEs achieving power conversion efficiencies (PCE) of 4.25% and 3.00%, respectively, compared to dip coated PEDOT:PSS-DC and Pt-DC CEs.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Fan Yang, Yurui Gao, Pengcheng Zhao, Yuan He, Yuqiao Wang
Summary: In this study, 1D ZnO@C@MoS(2) nanoarrays on conducting glass were fabricated as an effective counter electrode for dye-sensitized solar cells. The power conversion efficiency reached 3.61% due to enhanced electron transfer and electrocatalytic activity.
Article
Materials Science, Multidisciplinary
G. Syrrokostas, K. Bhorkar, L. Sygellou, V. Dracopoulos, G. Leftheriotis, S. N. Yannopoulos
Summary: In this study, it is demonstrated that PtSe2 films, prepared by soft selenization of pre-deposited Pt, are highly efficient counter electrodes (CEs) in dye sensitized solar cells (DSSCs). Devices based on PtSe2 achieve better photoconversion efficiency (9.5±1.2%) compared to those using bare Pt CE (9.18±0.21%), even with lower Pt loading. The improved performance of PtSe2 CEs is attributed to the higher availability of catalytic active sites and more effective mechanism of interfacial electron transfer.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Wenyi Bian, Xueli Shen, Huang Tan, Xing Fan, Yunxia Liu, Haiping Lin, Youyong Li
Summary: The intrinsic coordinating effect of Fe single-atom catalysts in propane dehydrogenation was systematically studied using density functional theory (DFT) calculations. The Fe-N3P-C dual-coordinated site exhibited superior catalytic activity and selectivity at industrial temperatures due to its in-plane configuration that promotes C-H bond scission and offers an appropriate H diffusion rate, ensuring high propylene selectivity and catalyst regeneration.
CHINESE CHEMICAL LETTERS
(2023)
Article
Multidisciplinary Sciences
Fan Liao, Kui Yin, Yujin Ji, Wenxiang Zhu, Zhenglong Fan, Youyong Li, Jun Zhong, Mingwang Shao, Zhenhui Kang, Qi Shao
Summary: In this study, a monoclinic phase iridium oxide nanoribbon with a space group of C2/m is successfully obtained, which is distinct from rutile iridium oxide with a stable tetragonal phase (P42/mnm). The formation mechanism of IrO2 nanoribbon is clearly revealed, with its further conversion to IrO2 nanosheet with a trigonal phase. Well-defined metastable phase nanostructures are a core issue for catalyst design.
NATURE COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Jie Feng, Zhihao Dong, Yujin Ji, Youyong Li
Summary: By introducing a dynamic embedding layer, we propose a universal graph neural network called CrystalGNN, which can automatically update atomic inputs during the training process. We train a model based on this framework to accurately predict the formation energies of 10,500 IrO2 configurations and discover 8 unreported metastable phases. Among them, C2/m-IrO2 and P62-IrO2 are identified as excellent electrocatalysts that can reach the theoretical OER overpotential limit at their most stable surfaces. Our self-learning-input CrystalGNN framework exhibits reliable accuracy, generalization, and transferring ability and successfully accelerates the bottom-up catalyst design to boost the OER activity.
Article
Chemistry, Physical
Zhihao Dong, Jie Feng, Yujin Ji, Youyong Li
Summary: We propose a self-learning-input graph neural network framework, called SLI-GNN, to predict the properties of both crystals and molecules. By using a dynamic embedding layer and the Infomax mechanism, the input features are dynamically updated and the average mutual information between local and global features is maximized. Experimental results show that our SLI-GNN achieves comparable performance to other GNNs in material property prediction, indicating promising potential for accelerating new material discovery.
JOURNAL OF PHYSICAL CHEMISTRY A
(2023)
Article
Chemistry, Physical
Hongshuai Wang, Jie Feng, Zhihao Dong, Lujie Jin, Miaomiao Li, Jianyu Yuan, Youyong Li
Summary: Organic photovoltaics have gained global attention for their unique advantages in developing low-cost, lightweight, and flexible power sources. Researchers have proposed functional molecular design and synthesis to accelerate the discovery of ideal organic semiconductors. However, experimental screening of a wide range of organic compounds is prohibitively expensive. In this study, a framework combining a deep learning model and an ensemble learning model is developed for rapid and accurate screening of organic photovoltaic molecules. This framework establishes the relationship between molecular structure, properties, and device efficiency, providing an efficient method for developing new organic optoelectronic materials.
NPJ COMPUTATIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Yanxia Ma, Yuyan Liu, Yujin Ji, Youyong Li
Summary: In this study, the structural stabilities, electronic properties, and hydrogen evolution performances of nine kinds of 2D M4/3B2 materials were investigated using density functional theory calculations. The results showed that most of the materials were stable and promising for hydrogen production, except for Cr4/3B2. Monolayers of metallic Ti4/3B2 and Ta4/3B2 were susceptible to oxidation in aqueous environments, but had optimal hydrogen adsorption free energies and exchange current densities.
MATERIALS TODAY ENERGY
(2023)
Article
Chemistry, Physical
Rongfeng Guan, Pan Wang, Yujin Ji, Youyong Li, Yang Song
Summary: In this work, the pressure-induced phase transitions of N2H4BH3 were studied using vibrational spectroscopy, X-ray diffraction, and density functional theory (DFT). It was found that N2H4BH3 exhibits remarkable structural stability up to 15 GPa, followed by two phase transitions. DFT calculations revealed that the stability of N2H4BH3 and the late phase transformations are related to the pressure-mediated evolutions of dihydrogen bonding frameworks, the compressibility, and the enthalpies of the high-pressure polymorphs. These findings provide important insights into the structures and bonding properties of N2H4BH3 for hydrogen storage applications.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Jie Feng, Yujin Ji, Youyong Li
Summary: We investigated the performance of copper alloys in NO electroreduction reaction (NORR) using first-principles calculations and machine learning (ML). We found that the adsorption energy of N atoms is an effective catalytic descriptor for NORR. By screening 140 copper alloys, Cu@Cu3Ni and Cu2Ni2@Cu3Ni were discovered with low limiting potentials and kinetic barriers. We constructed an accurate ML model predicting the adsorption energy and identified Ni as an optimal alloy element to enhance NORR activity. This work opens up new possibilities for efficient alloy catalyst design and ML-accelerated discovery of novel NORR catalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Wenzhen Xu, Yunpeng Shu, Mengmeng Xu, Juan Xie, Youyong Li, Huilong Dong
Summary: In this study, the effect of strain engineering on the electrocatalysis of CO reduction reaction (CORR) by 2D transition metal embedded polyphthalocyanines (MPPcs) was computationally explored. It was found that only CrPPc under biaxial strain had the potential to significantly enhance the catalytic performance. The free energy diagrams showed that the optimal reaction pathway and rate-determining step were changed under specific biaxial strains, and applying 5% compressive strain on CrPPc resulted in unexpected electrocatalytic activity.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Biochemistry & Molecular Biology
Wentao Qi, Dong Zhai, Danna Song, Chengcheng Liu, Junxia Yang, Lei Sun, Youyong Li, Xingwei Li, Weiqiao Deng
Summary: Considering the global challenge of low-cost and efficient anti-COVID-19 drug production, we developed a low-cost and efficient synthesis route for favipiravir using improved retrosynthesis software. This route involves only 3 steps under safe and near-ambient air conditions, achieving a yield of 32% and cost of $1.54 per g. We also applied the same strategy to optimize the synthesis of sabizabulin. These synthetic routes are expected to contribute to the prevention and treatment of COVID-19.
RSC MEDICINAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Lamei Li, Zifang Cheng, Jiaqi Su, Beibei Song, Hao Yu, Yujin Ji, Qi Shao, Jianmei Lu
Summary: In this study, one-dimensional amorphous porous iridium-ruthenium bimetallic oxide nanobelts were successfully prepared, showing low overpotential and high activity, which have potential applications in acidic oxygen evolution reaction.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Piao Wang, Changle Zhang, Jiabao Ding, Yujin Ji, Youyong Li, Weifeng Zhang
Summary: Combining iridium dopants with highly active iridium atoms, Ir-SMO exhibits excellent performance for water oxidation in acidic conditions, making it an efficient and stable electrocatalyst.
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)
