Article
Chemistry, Physical
Sunil Kumar, Pravesh Kumar Yadav, Ravi Prakash, Amita Santra, Pralay Maiti
Summary: A new electrolyte with electrolyte active groups (EAG) embedded in structured hard segments was developed using graphene oxide and polyurethane chain. The optimized PUI-GO electrolyte exhibited higher electrical conductivity (4.48 x 10(-3) S/cm) and improved photovoltaic reaction, leading to enhanced power conversion efficiency and open circuit potential in quantum dot-sensitized solar cells (QDSSC).
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Green & Sustainable Science & Technology
Savisha Mahalingam, Abreeza Manap, Azimah Omar, Foo Wah Low, N. F. Afandi, Chin Hua Chia, Nasrudin Abd Rahim
Summary: Graphene quantum dots (GQDs) with outstanding properties can be chemically modified and functionalized for high-performance dye-sensitized solar cells. Optimizing electron transport and electrolyte can further enhance the efficiency of GQD-DSSC.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
In-Rok Jo, Young-Hoon Lee, Hyunsoo Kim, Kwang-Soon Ahn
Summary: Nitrogen-doped graphene quantum dots (N-GQDs) play a crucial role in enhancing the performance of quantum dot-sensitized solar cells by boosting light absorption, facilitating electron transportation, and suppressing charge recombination, leading to a significantly improved power conversion efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Electrochemistry
Savisha Mahalingam, Abreeza Manap, Ramisha Rabeya, Kam Sheng Lau, Chin Hua Chia, Huda Abdullah, Nowshad Amin, Puvaneswaran Chelvanathan
Summary: The goal of this study is to investigate the impact of the chemical treatment of titanium tetrachloride (TiCl4) on graphene quantum dots (GQDs)-based dye-sensitized solar cells (DSSCs). The mechanism of how the TiCl4 treatment provides high surface area and porosity to enhance the adsorption of GQDs and dye is proposed. The electron transport analysis showed that the treatment reduced electron recombination rate and increased electron injection efficiency, resulting in improved performance of the DSSC.
ELECTROCHIMICA ACTA
(2023)
Article
Chemistry, Physical
C. Rosiles-Perez, S. Sidhik, L. Ixtilico-Cortes, F. Robles-Montes, T. Lopez-Luke, A. E. Jimenez-Gonzalez
Summary: By using Bi2S3 quantum dots as the sensitizer material, a high short-circuit current density was achieved in the QDSSC. The addition of 1,2,3-propanetriol as a complexing agent significantly increased the density sensitization of Bi2S3 QDs, leading to an improvement in J(sc).
MATERIALS TODAY ENERGY
(2021)
Article
Energy & Fuels
Roopakala Kottayi, Vignesh Murugadoss, Pratheep Panneerselvam, Ramadasse Sittaramane, Subramania Angaiah
Summary: Cu2AgInS2Se2 alloyed quantum dots were synthesized using a hot injection method, with their structure, optical properties, and composition confirmed through various analyses. The sensitized solar cell using these quantum dots exhibited higher photoconversion efficiency compared to other quantum dots, showcasing their potential for photovoltaic applications.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Review
Chemistry, Applied
J. H. Markna, Prashant K. Rathod
Summary: This review article provides a comprehensive overview of the efficiency of quantum dot sensitized solar cells (QDSCs) based on dye-synthesized solar cells and nanotechnology, and discusses their status under the influence of photoanode and quantum dot sensitizers.
Review
Chemistry, Physical
Akash S. Rasal, Sudesh Yadav, Anil A. Kashale, Ali Altaee, Jia-Yaw Chang
Summary: This review discusses the factors influencing the performance stability of QDSSCs and provides insights into the mechanisms causing degraded performances. It also presents cutting-edge strategies for improving the overall performance stability of QDSSCs.
Article
Chemistry, Physical
S. Liu, R. Fan, Y. Zhao, M. Yu, L. Li, Q. Li, B. Liang, W. Zhang
Summary: In this study, a relatively less toxic CISSe quantum dot was prepared by an organic high-temperature hot injection method for use in QD-sensitized solar cells. Through Sn doping and ZnS passivation, the electron collection efficiency was improved and charge recombination was inhibited, resulting in a power conversion efficiency of 6.7% for the QDSSC.
MATERIALS TODAY ENERGY
(2021)
Article
Polymer Science
Ravi Prakash, Santanu Das, Pralay Maiti
Summary: Functionalization of multi-walled carbon nanotubes (CNTs) was conducted to obtain CNT-tagged polyurethane (PU-CNT) through ultrasonication, chemical attachment, and chain extension. Spectroscopic techniques confirmed the functionalization of CNTs and polymer and thermal measurements revealed improved thermal stability and conductivity. Quantum dots of CuInS2 were synthesized and characterized for potential use in solar cells. Solar cell devices with Au as counter electrode achieved an enhanced power conversion efficiency of 0.81% due to reduced electron-hole pair recombination and improved hole transportation.
Article
Electrochemistry
S. Mahalingam, A. Manap, K. S. Lau, A. Omar, P. Chelvanathan, C. H. Chia, N. Amin, I. J. Mathews, N. F. Afandi, N. A. Rahim
Summary: In the traditional approach of layer-by-layer assembly of graphene quantum dots and dye in quantum dot-cosensitized solar cells, limited light absorption and low affinity to the TiO2 surface hinder its practical application. A new strategy of mixture configuration was investigated, and it was found that the mixture of GQDs + N719 exhibited the highest efficiency, attributed to enhanced electron collection and improved surface adhesion between the photoanode and photosensitizers.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
S. Monika, M. Mahalakshmi, N. Subha, M. Senthil Pandian, P. Ramasamy
Summary: A composite material of zero-dimensional graphene quantum dots anchored on reduced graphene oxide sheets was successfully synthesized and used as a counter electrode material for CdS quantum dot sensitized solar cells. The composite showed significantly improved power conversion efficiency for solar cells.
DIAMOND AND RELATED MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
D. Vinoth Pandi, V. Saraswathi, M. R. Venkatraman, N. Muthukumarasamy, S. Agilan, D. Velauthapillai, K. Brindhadevi, A. Pugazhendhi
Summary: PbS quantum dots and PbS quantum dots-sensitized ZnO nanostructures with rod-like shape were successfully synthesized. The prepared PbS quantum dots exhibited significant visible light absorption, and the light absorption of PbS quantum dots-sensitized ZnO nanorods was higher than that of bare ZnO nanorods. The uniform development of rod-like ZnO nanostructures with deposition of PbS quantum dots on the surface was observed from electron microscope images. The solar cells made using PbS quantum dots-sensitized ZnO nanorods achieved a power conversion efficiency of 1.2%.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Energy & Fuels
Tamal Dey, Arup Ghorai, Soumen Das, Samit K. Ray
Summary: The choice of solvent used in the synthesis of nitrogen-doped graphene quantum dots (N-GQDs) significantly affects the photovoltaic performance of quantum dot sensitized solar cells (QDSSC). Switching to aprotic solvent DMF enhances nitrogen units in the graphene quantum dots framework, improving carrier density and transport properties, and resulting in better photovoltaic performance for QDSSC.
Article
Energy & Fuels
T. Archana, S. Sreelekshmi, G. Subashini, A. Nirmala Grace, M. Arivanandhan, R. Jayavel
Summary: The study investigated the use of graphene quantum dots as a passivating layer for cadmium sulfide quantum dot-sensitized solar cells, which significantly enhanced the photoconversion efficiency of the QDSSCs.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Xuping Liu, Jihuai Wu, Tingting Zhang, Deng Wang, Xiao Jin, Bing Xu, Zhen Huang, Dongyu Li, Qinghua Li
Summary: By doping organic molecules and surface modification, both anion and cation defects in the perovskite layer can be simultaneously mitigated, thus enhancing the performance and stability of perovskite solar cells.
Article
Energy & Fuels
Chunyan Wang, Jihuai Wu, Shibo Wang, Zhongliang Yan, Xuping Liu, Guodong Li, Liqiang Chen, Sijia Zhu, Weihai Sun, Zhang Lan
Summary: Interface engineering with 5-chloroindole (Cl-indole) is demonstrated to enhance the photovoltage performance and stability of perovskite solar cells (PSCs) by optimizing interface contact and passivating interface defects.
Article
Chemistry, Physical
Sijia Zhu, Jihuai Wu, Weihai Sun, Weichun Pan, Fangfang Cai, Juanmei Liu, Liqiang Chen, Xia Chen, Chunyan Wang, Xiaobin Wang
Summary: Researchers have improved the performance and stability of perovskite solar cells by introducing phenylethylamine tetrafluoroborate (PEABF(4)) into the devices. The introduction of PEABF(4) passivates oxygen vacancies, reduces trap-state density and nonradiative recombination, and optimizes the energy match between the perovskite layer and the TiO2 electron transport layer.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Juanmei Liu, Jihuai Wu, Guodong Li, Qi Chen, Xia Chen, Jialian Geng, Qiang Ouyang, Weihai Sun, Zhang Lan
Summary: This study presents a simple defect passivation strategy using N-methyl-N-(thien-2-ylmethyl)amine (NMTMA) as a passivator at the interface between the perovskite layer and the hole transport layer. The NMTMA effectively reduces trap-state density and nonradiative recombination, resulting in improved power conversion efficiency (PCE) and environmental stability for the perovskite solar cells.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Mian Gao, Zhitao Shen, Gentian Yue, Chen Dong, Jihuai Wu, Yueyue Gao, Furui Tan
Summary: In this study, a novel synthesis method was developed to prepare efficient and economical non noble metal counter electrode (CE) electrocatalytic materials with good catalytic ability and stability for dye-sensitized solar cells (DSSCs). The resulting micro-nanostructured composite of CE showed high power conversion efficiency and a distinctive porous structure that facilitated fast charge transport.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Jingxu Tian, Jihuai Wu, Yuhe Lin, Jialian Geng, Jialiang Shi, Wenhui Lin, Wenxuan Hao, Chaoran Ke, Jinhui Yang, Weihai Sun, Zhang Lan
Summary: As a solution to the challenges of improving efficiency and stability in perovskite solar cells (PSCs), a cage polyamine molecule hexamethylenetramine (HMTA) is incorporated into the tin oxide electron transport layer (ETL). The introduction of HMTA improves electron extraction ability and energy-level alignment of functional layers. It also reduces defects and enhances stability, resulting in a PSC with a high power conversion efficiency of 22.37%. This research demonstrates the use of cage polyamines as an effective method for improving the performance and stability of PSCs.
Article
Chemistry, Physical
Chunyan Deng, Jihuai Wu, Yuqian Yang, Yitian Du, Ruoshui Li, Qi Chen, Yuan Xu, Weihai Sun, Zhang Lan, Peng Gao
Summary: By functionalizing the buried interface using DDSI2, the distribution and size of PbI2 clusters can be modulated, leading to improved performance of perovskite films. DDSI2 serves as a multifunctional modifier that optimizes the energy level of SnO2 and passivates buried interface defects. The hydrogen bonding and coordination between DDSI2 and perovskite reduce crystal growth rate and lattice stress, resulting in enhanced perovskite quality and modulated PbI2 distribution. The DDSI2-modified device exhibits a power conversion efficiency of 24.10% and a storage stability of 1800 h, demonstrating a unique strategy for the rational control of PbI2 in efficient and stable perovskite solar cells.
ACS ENERGY LETTERS
(2023)
Review
Materials Science, Multidisciplinary
Zeyu Song, Zhongkai Hao, Xu Zhang, Jihuai Wu
Summary: In recent years, there has been an increase in the development and research of photocapacitors. They have the potential to address the intermittent output problem of solar cells but their efficiency is much lower than that of photovoltaic devices, limiting their usability. As an intersection of photovoltaic devices and supercapacitors, the development of photocapacitors is still in its early stages and faces numerous challenges. This review provides an introduction to the classification of photocapacitors, outlines the development process, and points out the problems that need to be solved.
FUNCTIONAL MATERIALS LETTERS
(2023)
Article
Chemistry, Physical
Anling Tong, Chenwei Zhu, Huiying Yan, Chunhong Zhang, Yinuo Jin, Yunjia Wu, Fengxian Cao, Jihuai Wu, Weihai Sun
Summary: Inorganic CsPbBr3-based perovskite solar cells have excellent humidity and thermal stability, but those without a hole transport layer suffer from serious carrier recombination. To solve this problem, a passivation layer of polymethyl methacrylate (PMMA) is used between the CsPbBr3 film and carbon electrode. This PMMA layer suppresses trap sites, facilitates faster carrier extraction and transportation, improves energy level alignment, and acts as a moisture protective layer. The modified device achieved a champion PCE of 9.60% with a high VOC of 1.58 V, and negligible PCE loss after 400 hours of aging.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Yitian Du, Ying Wang, Jihuai Wu, Qi Chen, Chunyan Deng, Ran Ji, Liuxue Sun, Lina Tan, Xia Chen, Yiming Xie, Yunfang Huang, Yana Vaynzof, Peng Gao, Weihai Sun, Zhang Lan
Summary: Sodium bicarbonate is used as an additive in perovskite solar cells to improve the formation of perovskite film and enhance the crystallinity and grain structure, resulting in improved device efficiency and stability.
Article
Nanoscience & Nanotechnology
Wenhui Lin, Jihuai Wu, Jingxu Tian, Yuhe Lin, Puzhao Yang, Yongheng Huang, Xiaoyuan Jiang, Lin Gao, Ying Wang, Weihai Sun, Zhang Lan, Miaoliang Huang
Summary: The introduction of multifunctional additive TFMBI into perovskite films effectively repairs surface defects, improves the performance of perovskite solar cells, and enhances their environmental stability.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Pengxu Chen, Weichun Pan, Sijia Zhu, Fengxian Cao, Anling Tong, Ruowei He, Zhang Lan, Weihai Sun, Jihuai Wu
Summary: In this study, defects in the SnO2 electron transport layer and perovskite layer were effectively passivated by introducing a multifunctional molecule TMACl. The presence of TMACl suppressed the defects in SnO2 and passivated the defects in PVK, resulting in improved device performance of perovskite solar cells. The devices based on TMACl-doped SnO2 and TMACl-modified SnO2 electron transport layers achieved higher efficiencies compared to the pristine device, and the TMACl-modified SnO2 maintained 88% of its original efficiency after 35 days of storage in a humidity-controlled chamber.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Inorganic & Nuclear
Weichun Pan, Pengxu Chen, Sijia Zhu, Ruowei He, Qingshui Zheng, Fengxian Cao, Zhang Lan, Jihuai Wu, Weihai Sun, Yunlong Li
Summary: The introduction of 6-amino-1-hexanol (HAL) with bilateral electron-donating groups between SnO2 and perovskite (PVK) optimizes the buried interfacial properties and improves the PVK film quality in perovskite solar cells. HAL acts as a molecular bridge to effectively passivate surface defects of SnO2 and stabilize the [PbI6](4)- octahedra at the buried interface. The HAL-modified device exhibits significantly enhanced photovoltaic performance and improved stability after storage.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Jinbiao Jia, Beibei Shi, Jia Dong, Zhe Jiang, Shuaibing Guo, Jihuai Wu, Bingqiang Cao
Summary: By introducing 4-iodo-1H-imidazole into the perovskite precursor, defects in the perovskite films can be prevented, resulting in a significant increase in open-circuit voltage and decreased nonradiative recombination. As a result, the device efficiency is increased by 20% compared to the control device.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yuqian Yang, Qiu Xiong, Jihuai Wu, Yongguang Tu, Tianxiao Sun, Guixiang Li, Xuping Liu, Xiaobing Wang, Yitian Du, Chunyan Deng, Lina Tan, Yuelin Wei, Yu Lin, Yunfang Huang, Miaoliang Huang, Weihai Sun, Leqing Fan, Yiming Xie, Jianming Lin, Zhang Lan, Valerio Stacchinii, Artem Musiienko, Qin Hu, Peng Gao, Antonio Abate, Mohammad Khaja Nazeeruddin
Summary: This study introduces a novel strategy of spinodal decomposition to create a poly(3-hexylthiophene)/perovskite (P3HT/PVK) heterointerface, effectively reducing energy and carrier losses in perovskite solar cells (PSCs). The P3HT/PVK heterointerface improves energy alignment, reducing energy loss at the interface, and the interpenetrating structure bridges a transport channel, decreasing carrier loss at the interface. This innovative approach achieves a remarkable power conversion efficiency of 24.53% for PSCs.
ADVANCED MATERIALS
(2023)
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)
