Article
Chemistry, Physical
Sanjay Kumar Swami, Neetesh Kumar, Daniela R. Radu, Sung Woon Cho, Jongsu Lee
Summary: In this study, a post-lithium (Li) treatment on TiO2 films was performed to enhance the optoelectronic features and power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs). The Li treatment reduced defects and improved the crystallinity of the TiO2 films. DSSCs fabricated using Li-treated TiO2 films as photoanodes showed a performance improvement of approximately 20% and a PCE of 10.5%, compared to the control DSSC with a PCE of 8.7%. The enhanced performance was attributed to improved structural properties, efficient charge transport, and suppression of recombination due to the passivation of trap states.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Environmental Sciences
Naveen Kumar Panneer, Chandrakala Venkatraman, Neena Bachan, Jothi Jeyarani Wilson, Merlin Arnold Edwin, Antony Robinson Jesudasan, Merline Shyla Joseph
Summary: The manuscript describes the fabrication and characterization of an eco-friendly dye-sensitized solar cell (DSSC) using aluminium-doped tin oxide nanoparticles. The doped nanoparticles showed improved optical and electrical properties compared to the undoped ones. The study also investigated the crystal structure, particle size, and photoconductivity of the nanoparticles using analytical tools such as X-ray diffraction and field emission scanning electron microscope. The results demonstrate the potential of Al-doped SnO2 nanoparticles for efficient and environmentally safe photovoltaic applications.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Fengjuan Miao, Bingcheng Sun, Bairui Tao, Yanchun Wang, Paul K. Chu
Summary: This paper demonstrates the application of a novel ternary nanocomposite MoS2/Ag/TiO2 photoanode in high efficiency plasma dye sensitive solar cell. The ternary nanocomposite MoS2/Ag/TiO2 was successfully synthesized without any hazardous substances. The addition of MoS2 improves the light absorption ability and electron transfer rate of the photoanode, leading to a significant enhancement in the photoelectric conversion efficiency of the dye sensitive solar cell.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Haoran Yan, Minghan Chen, Wenbo Liu, Peiyun Wang, Menglin Liu, You Liu, Longqiang Ye, Mengmeng Gu
Summary: To enhance the power conversion efficiency (PCE) of dye-sensitized solar cells (DSSCs), niobium oxide and Ti3C2 quantum dots were introduced into the photoanode, resulting in improved photocurrent and efficiency. The DSSC device with the composite photoanode achieved a remarkable PCE of 7.24%, surpassing the standard device's efficiency of 4.60%.
Article
Energy & Fuels
Debajyoti Das, Prami Nandi
Summary: A simple low-temperature hydrothermal route was used to prepare binary ZnO/g-C3N4 heterostructures, which showed improved performance in DSSC application. The growth of g-C3N4 layer on ZnO nanorods surface delayed electron recombination and increased electron concentration in the photoelectrode.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2022)
Article
Engineering, Electrical & Electronic
Xiaojie Yang, Liwei Cai, Li Zhao, Zuhong Li, Congcong Wu, Junmei Sun, Zihui Liang, Shimin Wang
Summary: By synthesizing graphene oxide, upconversion luminescent material, and porous hollow titanium dioxide microspheres to couple with commercial P25, the light-harvesting and photoelectric performance of dye sensitized solar cells can be improved, with the power conversion efficiency reaching as high as 9.41% using the optimized photoanode structure.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Chemistry, Physical
A. Soundarya Mary, K. B. Bhojanaa, P. Murugan, A. Pandikumar
Summary: Various compositions of CaxBa1-xSnO3 perovskite materials were synthesized by hydrothermal method, with Ca0.1Ba0.9SnO3 showing better efficiency in DSSC. The CBM of Ca0.1Ba0.9SnO3 is mainly distributed by Sn 5s states, providing high electronic mobility.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Energy & Fuels
I. Ibrahim, H. N. Lim, N. W. K. Wan, N. M. Huang, S. P. Lim, W. Busayaporn, H. Nakajima
Summary: This study achieved significant enhancement of dye-sensitized solar cells' performance by constructing a special structured photoanode and incorporating a reflective layer, leading to improvements in power conversion efficiency and short-circuit current density.
Article
Energy & Fuels
Iqbal Singh, Viplove Bhullar, Aman Mahajan
Summary: This study focuses on improving the performance of quantum dot-sensitized TiO2 photoanodes using graphene nanoribbons (GNRs) to reduce recombinations and enhance electron transport. The optimized photoanodes show higher power conversion efficiency and photocurrent density in quantum dot-sensitized solar cells and photoelectrochemical water-splitting applications.
Article
Chemistry, Multidisciplinary
Siqi Zhang, Fuhua Huang, Xugeng Guo, Ye Xiong, Yafei Huang, Hans Agren, Li Wang, Jinglai Zhang
Summary: We have developed a new strategy to create a multifunctional composite photoanode consisting of TiO2 hollow spheres (TiO2-HSs), Au nanoparticles (AuNPs), and novel NaYF:Yb,Er@NaLuF:Eu@SiO2 upconversion nanoparticles (UCNPs). By growing AuNPs on the photoanode film, including TiO2-HSs and UCNPs, through a simple in situ plasmonic treatment, we achieved an impressive power conversion efficiency of 14.13%, which is a record for N719 dye-based dye-sensitized solar cells. This remarkable enhancement is attributed to the collaborative mechanism of TiO2-HSs, UCNPs, and AuNPs, which exhibit excellent light-scattering ability, convert near-infrared photons into visible photons, and present outstanding surface plasmon resonance effect, respectively. Moreover, the champion cell showed a retention efficiency of 95.33% even after 180 hours of measurements, indicating good device stability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
Jung-Min Ji, Chang Ki Kim, Hwan Kyu Kim
Summary: The tellurium-doped carbon nanomaterial Te-MC(P) was developed through soft-templated carbonization, with tellurium atoms homogeneously dispersed in a three-dimensional mesoporous carbon matrix. Te-MC(P) exhibited superior electrocatalytic performance compared to Pt and tellurium-based materials, leading to enhanced photovoltaic efficiency.
DALTON TRANSACTIONS
(2021)
Review
Physics, Applied
Md Sariful Sheikh, Anurag Roy, Alo Dutta, Senthilarasu Sundaram, Tapas K. Mallick, T. P. Sinha
Summary: The dye-sensitized solar cell technology offers low-cost and simple fabrication procedures, but its overall performance still lags behind standard PV technologies. Nanostructured perovskite oxides show promise in overcoming the limitations of traditional DSSCs and improving their efficiency.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Review
Chemistry, Multidisciplinary
Ana Belen Munoz-Garcia, Iacopo Benesperi, Gerrit Boschloo, Javier J. Concepcion, Jared H. Delcamp, Elizabeth A. Gibson, Gerald J. Meyer, Michele Pavone, Henrik Pettersson, Anders Hagfeldt, Marina Freitag
Summary: Dye-sensitized solar cells (DSCs) and dye-sensitized photoelectrochemical cells (DSPECs) have seen a revival in recent years as they offer unique properties such as low cost, non-toxic materials, colorfulness, transparency, and efficiency in low light conditions. This review covers advancements in DSC technology over the past decade, including theoretical studies, characterization techniques, materials, applications, and commercialization efforts by various companies.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Energy & Fuels
Judith Castillo-Rodriguez, Pedro D. Ortiz, Reeda Mahmood, Robert A. Gossage, Jaime Llanos, Dario Espinoza, Ximena Zarate, Bryan D. Koivisto, Eduardo Schott
Summary: Considering the widespread use of windows in modern urban landscapes, converting these substrates into photovoltaic devices would remarkably impact modern energy generation. This study examines the dye-sensitized photoanode, a key component of a flexible dye-sensitized solar cell, and the effect of different nanoparticle composites on device performance.
Article
Chemistry, Multidisciplinary
Pronay Makal, Debajyoti Das
Summary: The study investigated the influence of reduced graphene oxide content on the performance of dye-sensitized solar cells, with TNWG hybrid photoanode containing 8% content demonstrating higher light-to-electricity conversion efficiency. The overall improvement in photovoltaic performance may be attributed to increased surface area leading to intense visible light absorption and faster electron transport.
Article
Cell & Tissue Engineering
Muhammad Umar Aslam Khan, Adnan Haider, Saiful Izwan Abd Razak, Mohammed Rafiq Abdul Kadir, Sajjad Haider, Saqlain A. Shah, Anwarul Hasan, Rawaiz Khan, Salah-ud din Khan, Imran Shakir
Summary: This study focused on addressing bacterial infections during bone implantation using biocomposite scaffolds, while maintaining the scaffold properties for bone regeneration. The scaffolds were characterized for structural changes, porosity, mechanical properties, and compatibility through various techniques. Results showed good antibacterial activity, cellular compatibility, and blood compatibility, indicating the potential for application in bone tissue engineering.
JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE
(2021)
Article
Chemistry, Physical
Khadija Chaudhary, Muhammad Aadil, Sonia Zulfiqar, Sana Ullah, Sajjad Haider, Philips O. Agboola, Muhammad Farooq Warsi, Imran Shakir
Summary: The synthesis of highly active and cheap photo-catalyst materials consisting of ZnO nanochips assembled over graphene derivatives, ZnO@GO and ZnO@RGO, was investigated. Results showed that ZnO@RGO had higher efficiency with 2.4 and 2 times higher kinetic rates for RhB and MB removal, respectively, attributed to the partially restored conjugated structure of RGO leading to better charge migration across semiconductor-carbon heterojunctions. The active species involved in the degradation process were systematically investigated, and a photo-catalytic mechanism was proposed, demonstrating good recyclability and resistance to photo-corrosion for both ZnO@GO and ZnO@RGO even after 360 minutes of consecutive photo-catalytic activity.
FULLERENES NANOTUBES AND CARBON NANOSTRUCTURES
(2021)
Article
Chemistry, Inorganic & Nuclear
Humera Sabeeh, Muhammad Aadil, Sonia Zulfiqar, Imtisal Ayeman, Imran Shakir, Philips O. Agboola, Sajjad Haider, Muhammad Farooq Warsi
Summary: A novel NiS/CNTs nanohybrid with higher specific capacity and cyclic performance was fabricated as an anodic material for supercapacitor applications. The NiS/CNTs electrode exhibited good gravimetric ability and considerable cyclic performance due to its hybrid composition and self-supporting design. The hybrid electrode maintained a high gravimetric capacity even under increased current density, indicating its promising potential for practical applications in advanced energy storage devices.
JOURNAL OF CLUSTER SCIENCE
(2022)
Article
Materials Science, Ceramics
Talya Tahir, Khadija Chaudhary, Muhammad Farooq Warsi, Muhammad Saqib Saif, Ibrahim A. Alsafari, Imran Shakir, Philips O. Agboola, Sajjad Haider, Sonia Zulfiqar
Summary: The report focused on the synthesis of Gd+3 doped V2O5 nanostructures and GVO/MXene binary nanocomposite, characterized using various techniques and analyzed for photocatalytic performance and antibacterial properties. The results demonstrated that GVO/MXene exhibited excellent performance in photocatalytic degradation and bacterial inhibition.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Majid Mahmood, Sonia Zulfiqar, Muhammad Farooq Warsi, Muhammad Aadil, Imran Shakir, Sajjad Haider, Philips O. Agboola, Muhammad Shahid
Summary: The nanohybrid of vanadium pentoxide and MXene shows improved specific capacity and excellent cyclic, electrochemical, and mechanical performance, maintaining high specific capacity even after extensive testing. The hydrothermal synthesis of nanowires and ultrasound route formation of the nanohybrid effectively address the stacking issue of two-dimensional MXene sheets, allowing for effective interface interaction and suppression of stacking.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Qian Liu, Lisi Xie, Jie Liang, Yuchun Ren, Yuanyuan Wang, Longcheng Zhang, Luchao Yue, Tingshuai Li, Yongsong Luo, Na Li, Bo Tang, Yang Liu, Shuyan Gao, Abdulmohsen Ali Alshehri, Imran Shakir, Philips O. Agboola, Qingquan Kong, Qingyuan Wang, Dongwei Ma, Xuping Sun
Summary: NiCo2O4 nanowire array on carbon cloth (NiCo2O4/CC) is proposed as a highly active electrocatalyst for ambient nitrate (NO3-) reduction to ammonia (NH3). It achieves a high Faradic efficiency of 99.0% and a large NH3 yield up to 973.2 mu mol h(-1) cm(-2). The superior catalytic activity comes from its half-metal feature and optimized adsorption energy due to the existence of Ni in the crystal structure.
Review
Chemistry, Multidisciplinary
Fei Wang, Zhao Zhang, Imran Shakir, Chengbing Yu, Yuxi Xu
Summary: This review explores the synthesis, membrane fabrication, and applications of 2D polymer nanosheets, highlighting their potential in membrane separation and suggesting future research directions.
Article
Chemistry, Multidisciplinary
Jie Liang, Pengyu Liu, Qinye Li, Tingshuai Li, Luchao Yue, Yongsong Luo, Qian Liu, Na Li, Bo Tang, Abdulmohsen Ali Alshehri, Imran Shakir, Philips O. Agboola, Chenghua Sun, Xuping Sun
Summary: In this study, an amorphous B2.6C supported on a TiO2 nanoarray was developed as a nanocatalyst for NH3 production. It exhibited high activity and durability in NO electroreduction compared to other catalysts. Additionally, a Zn-NO battery based on this catalyst achieved high power density and NH3 yield.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Physics, Applied
Min Kyun Sohn, Hardeep Singh, Eun-Mi Kim, Gi Seok Heo, Seoung Woo Choi, Do Gi Phyun, Dae Joon Kang
Summary: This study reports the stability and reversibility of insulator-to-metal transition (IMT) in a vanadium dioxide (VO2) thin film grown on flexible glass substrates under the external strain, and discusses the effects of externally applied tensile strain on the electrical resistance.
APPLIED PHYSICS LETTERS
(2022)
Article
Materials Science, Ceramics
Sajjad Haider, Sahar Saad Shar, Imran Shakir, Philips O. Agboola
Summary: In this study, the effect of Cu doping on the photocatalytic activity of Fe2O3 nanoparticles was investigated. The results showed that Cu doping reduced particle aggregation and increased the surface area of nanoparticles. Furthermore, the narrowing bandgap energy of doped hematite contributed to enhanced photocatalytic activity. Among the samples, CF-10 exhibited the highest degradation rate for methylene blue.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Tanveer Ali, Muhammad Farooq Warsi, Sonia Zulfiqar, Abdul Sami, Sana Ullah, A. Rasheed, Ibrahim A. Alsafari, Philips O. Agboola, Imran Shakir, Mirza Mahmood Baig
Summary: The extensive use of broad-spectrum antibiotics has resulted in antibiotic resistance, making multi-drug resistance an increasing issue in the management of various infectious diseases. This study focused on the green synthesis of nickel/nickel oxide nanoparticles using Lactuca Serriola seeds extract and examined their bactericidal effect and photocatalytic activity against human pathogenic bacteria.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Zhiqin Deng, Jie Liang, Qian Liu, Chaoqun Ma, Lisi Xie, Luchao Yue, Yuchun Ren, Tingshuai Li, Yongsong Luo, Na Li, Bo Tang, Abdulmohsen Ali Alshehri, Imran Shakir, Philips O. Agboola, Shihai Yan, Baozhan Zheng, Juan Du, Qingquan Kong, Xuping Sun
Summary: A Co2AlO4 nanosheet array on carbon cloth is proposed as an excellent electrocatalyst for converting nitrate to ammonia. The experimental results show that this electrocatalyst has high yield and efficiency in the process of nitrate conversion to ammonia.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Zhiyi Lyu, Yongteng Qian, Dae Joon Kang
Summary: This study presents a transfer method that allows for the efficient transfer of two-dimensional transition metal dichalcogenides (TMDs) with high yield. The method utilizes a water-soluble sodium salt as a sacrificial layer for easy transfer and a catalytic layer for growing high-quality TMDs using chemical vapor deposition. The transferred TMDs maintain their pristine structural and electrical properties, as demonstrated by the fabrication of functional field-effect transistors with excellent performance. This transfer method has wide applicability and enables the easy fabrication of TMD-based electronics and optoelectronics.
Article
Chemistry, Multidisciplinary
Hyunje Park, Jaeseok Hwang, Jaejong Lee, Dae Joon Kang
Summary: This study introduces an EHIP process using an ultrahigh electric field to accelerate pattern growth evolution, overcoming challenges in process parameter controllability and replicate densely packed nanostructures.
Article
Materials Science, Ceramics
Philips O. Agboola, Imran Shakir, Zeyad Ammar Almutairi, Sahar Saad Shar
Summary: In this study, pure and Cu doped CoS2 nanoparticles were successfully synthesized on Nickel foam using a one-step hydrothermal method. The physiochemical properties of Cu.CoS2 were compared to pure CoS2 using various characterization techniques. Doping with Cu ions significantly enhanced the conductivity of CoS2, and Cu.CoS2 exhibited excellent electrochemical performance and cyclic stability in supercapacitors.
CERAMICS INTERNATIONAL
(2022)
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)