Review
Materials Science, Multidisciplinary
Chufeng Qiu, Yan Wu, Jiaxing Song, Wentao Wang, Zaifang Li
Summary: Perovskite solar cells have seen rapid development recently, with a record efficiency of up to 25.7%. Planar PSCs are the most common type, and ZnO shows promise as an ETL due to its high transparency and electron mobility, as well as its cost-effectiveness.
Article
Chemistry, Multidisciplinary
Kubra Erdogar, Ozgun Yucel, Muhammed Enes Oruc
Summary: In this study, Mg-doped TiO2 nanofibers were successfully fabricated as electron transport material (ETM) layers. Mg doping widened the energy band gap and shifted the edge of the conduction band minimum upward, enhancing the open circuit voltage (V-oc) and short current density (J(sc)) of the solar cells. The electron-hole recombination rate was lowered, and separation efficiency increased with the use of Mg-doped nanofibers as an ETM layer, demonstrating the possibility of improving the efficiency of perovskite solar cells (PSCs).
Article
Chemistry, Physical
Akbar Ali Qureshi, Hafiz Muhammad Asif Javed, Sofia Javed, Ayesha Bashir, Muhammad Usman, Aftab Akram, M. Irfan Ahmad, Usman Ali, Muhammad Shahid, Muhammad Rizwan, Sabir Ali Raza
Summary: The use of zirconium-doped TiO2 nanoparticles as an ETL in PSC significantly improves the power conversion efficiency. Additionally, the newly synthesized Zr-TiO2 nanoparticles also show good performance in photocatalytic activity.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Ghazaleh Bagha, Homam Naffakh-Moosavy, Mansour Rezaee Mersagh
Summary: The study found that the use of 5 wt% Ag doping is beneficial for enhancing the performance of ZnO-based PSCs by reducing the recombination rate. By employing rGO sheets, significant improvements in the electrical properties of both undoped and doped ZnO ETLs were observed, leading to enhanced performance of PSCs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Multidisciplinary Sciences
Faezeh Arjmand, Zahra Golshani, Shahab Maghsoudi, Atena Naeimi, S. Jamiladin Fatemi
Summary: In this study, green SnO2@ZnO nanocomposites were synthesized using Calotropis plant extract as an electron transfer material. The quality of perovskite films was improved by adding a small amount of polyaniline (PANI) polymer. The prepared perovskite solar cells (PSCs) with SnO2@ZnO.PANI nanocomposites showed higher power conversion efficiency and good stability. The optimal PSCs fabricated with mp-TiO2/SnO2@ZnO.PANI nanocomposites as electron transfer layer achieved a power conversion efficiency of 15.45%.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Xiangqing Zhou, Wenfeng Zhang, Xiaohong Wang, Puan Lin, Shenghou Zhou, Taotao Hu, Liuwen Tian, Fang Wen, Gongtao Duan, Lang Yu, Yan Xiang, Bensheng Huang, Yuelong Huang
Summary: This study investigates the application of Cu-doped tin oxide as the electron transport layer in planar perovskite solar cells. The copper doping enhances the conductivity of tin oxide and improves the band alignment with the perovskite layer, thus improving the charge transport efficiency and the quality of the perovskite film.
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Ubaid Khan, Tahseen Iqbal, Mehreen Khan, Rongguang Wu
Summary: By introducing a double electron transport layer (DETL), the energy loss in perovskite solar cells was effectively mitigated, resulting in an improved energy conversion efficiency of 15.22%. The best performance was achieved with an optimized thickness of ZnO layer reaching 210 nm.
Article
Engineering, Electrical & Electronic
Jianping Zhou, Yikun Hua, Biyu Long, Sumei Huang, Xiaohong Chen
Summary: Using interface modification is an effective method to improve the crystallinity and stability of perovskite solar cells. P-type poly(9-vinylcarbazole) (PVK) inserted at the interface of perovskite and electron transport layer (ETL) can enhance the crystallinity and stability of the cells. However, pure PVK modification is sensitive to thickness and UV exposure, resulting in limited improvement compared to reference cells.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Ayse Culu, Ismail Ciha Kaya, Savas Sonmezoglu
Summary: Ta-doped TiO2 films improve the electrical properties and promote efficient electron transfer of perovskite solar cells, while also exhibiting high photostability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Ceramics
Amel Muhson Naji, Sahira Hassan Kareem, Abbas Hasan Faris, Mustafa K. A. Mohammed
Summary: In this study, the efficient strategy of utilizing polyaniline as an additive improved the quality and stability of the perovskite photoactive layer, resulting in optimized crystallinity and reduced trap density. The introduction of polyaniline enhanced the interfacial contact between materials, leading to higher efficiency and stability in the photovoltaic cells. This approach demonstrates the potential for enhanced performance and long-term stability in perovskite solar cells.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ghazaleh Bagha, Mansour Rezaee Mersagh, Homam Naffakh-Moosavy, Laleh Farhang Matin
Summary: The study introduced a new ETL design using rGO/Ag-doped ZnO bilayer in planar PSCs, significantly increasing the power conversion efficiency by more than 30% compared to un-doped ZnO ETL. This approach improves the performance of PSCs by fine tuning the energy levels of ZnO/perovskite to enhance charge-carrier extraction. Using rGO/Ag-doped ZnO bilayer ETL is confirmed as a new methodology for creating stable planar PSCs with low charge recombination rate and high performance.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Jiajiu Ye, Yuze Li, Asma Aicha Medjahed, Stephanie Pouget, Dmitry Aldakov, Yueli Liu, Peter Reiss
Summary: The bilayer ETL consisting of two different doped SnO2 nanoparticle layers improves the open-circuit voltage loss in halide perovskite solar cells, enhances electron transfer efficiency, and reduces carrier recombination processes.
The reduced strain in perovskite layers grown on the bilayer ETL contributes to increased stability and easier preparation of smooth, pinhole-free ETLs.
Additionally, the bilayer SnO2 ETL can be processed at low temperature, showing great potential for use in tandem devices or flexible PSCs.
Article
Engineering, Environmental
Tian Zheng, Bin Fan, Yang Zhao, Bo Jin, Lisheng Fan, Rufang Peng
Summary: In this study, a novel n-self-doping conducive C60-PDI-I dimer ETL was successfully developed by incorporating fullerene and perylene diimide. This hybrid molecule exhibited high mobility and excellent defects passivation ability, leading to significantly higher power conversion efficiency and enhanced long-term stability of perovskite solar cells. The successful application of C60-PDI hybrid dimers provides new insights for designing novel electron transport materials based on PDI.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Yanyan Duan, Gen Zhao, Xiaotao Liu, Jiale Ma, Shuyao Chen, Yanlin Song, Xiaodong Pi, Xuegong Yu, Deren Yang, Yiqiang Zhang, Feng Guo
Summary: The development of a low-temperature chemical bath method for co-doping tantalum and niobium in the TiO2 ETL has shown improved conduction band level, reduced trap-state density, enhanced electron injection efficiency, and decreased charge recombination at the perovskite/ETL interface. This results in a superior power conversion efficiency of 19.44% in planar PSCs, providing new insights for low-cost and highly efficient PSCs fabrication.
Review
Chemistry, Multidisciplinary
Jiang-Yang Shao, Dongmei Li, Jiangjian Shi, Chuang Ma, Yousheng Wang, Xiaomin Liu, Xianyuan Jiang, Mengmeng Hao, Luozheng Zhang, Chang Liu, Yiting Jiang, Zhenhan Wang, Yu-Wu Zhong, Shengzhong Frank Liu, Yaohua Mai, Yongsheng Liu, Yixin Zhao, Zhijun Ning, Lianzhou Wang, Baomin Xu, Lei Meng, Zuqiang Bian, Ziyi Ge, Xiaowei Zhan, Jingbi You, Yongfang Li, Qingbo Meng
Summary: This review provides a summary of the recent major advances in the research of perovskite solar cells from a material science perspective. It covers topics such as different types of perovskite materials, defects, charge transport materials, counter electrodes, and interfacial materials. It also discusses the limitations and future prospects for the development of perovskite solar cells.
SCIENCE CHINA-CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Xin Li, Guibin Shen, Xin Ren Ng, Zhiyong Liu, Yun Meng, Yong-Wei Zhang, Cheng Mu, Zhi Gen Yu, Fen Lin
Summary: This study demonstrates the use of ZnSe as an inorganic ETL in planar perovskite solar cells, achieving improved efficiency and stability. The findings also suggest the applicability of ZnSe in both regular and inverted PSCs, with outstanding performance.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Polymer Science
You Li, Tianshun Xiong, Chaochao Xu, Yongxin Qian, Yang Tao, Luyao Wang, Qinghui Jiang, Yubo Luo, Junyou Yang
Summary: This article introduces a method to prepare high thermal conductivity and flame retardant epoxy resin composites by filling poly-dopamine modified nanoscale Al2O3 spheres and microscale h-BN sheets. The EP composite exhibits good thermal conductivity, flame retardancy, and dynamic mechanical properties, making it a promising candidate for packaging materials in microelectronics.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Guibin Shen, Xin Li, Yuqin Zou, Hongye Dong, Dongping Zhu, Yanglin Jiang, Xin Ren Ng, Fen Lin, Peter Mueller-Buschbaum, Cheng Mu
Summary: In this study, a microstructure-control technology using Pluronic P123 as the structure-directing agent and acetylacetone (AcAc) as the coordination agent is proposed to fabricate porous NiOX films, which improves the contact at the NiOX/perovskite interface in inverted perovskite solar cells (PSCs). The synthesized porous NiOX films enhance hole extraction efficiency and reduce recombination defects, leading to an improvement in the power conversion efficiency (PCE) of PSCs with different absorber layers and the fabrication of large-area PSCs on fluorine-doped tin oxide (FTO) substrates. This study provides a novel strategy for improving the contact at the NiOX/perovskite interface for high-performance large-area perovskite solar cells.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Jinmeng Li, Tian Xu, Zheng Ma, Wang Li, Yongxin Qian, Yang Tao, Yinchao Wei, Qinghui Jiang, Yubo Luo, Junyou Yang
Summary: A new hybrid hydrogel thermoelectric material PAAc/XG/Bi2Se0.3Te2.7 was prepared by in situ polymerization method, which exhibits high stretchable and self-healable performance, as well as good thermoelectric performance. The sample with Bi2Se0.3Te2.7 content of 1.5 wt% shows a room temperature Seebeck coefficient of -0.45 mV K-1, and demonstrates an open-circuit voltage of -17.91 mV and output power of 38.1 nW at a temperature difference of 40 K. The hybrid thermoelectric hydrogel can automatically recover its electrical characteristics within 2.0 s after being completely cut off, and the healed hydrogel retains over 99% of its initial power output. Such stretchable and self-healable hybrid hydrogel thermoelectric materials show promising potential for application in dynamic service conditions, such as wearable electronics.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Applied
Bo Xiao, Yongxin Qian, Xin Li, Yang Tao, Zijun Yi, Qinghui Jiang, Yubo Luo, Junyou Yang
Summary: In this study, an eco-friendly and low-cost organic polymer, cellulose acetate butyrate (CAB), was introduced to improve the stability and efficiency of perovskite solar cells. The CAB-treated perovskite film exhibited a well-matched energy level and superior stability, resulting in a significant improvement in the efficiency of the solar cells and the ability to maintain high efficiency in high humidity and high-temperature conditions.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Zijun Yi, Bo Xiao, Xin Li, Yubo Luo, Qinghui Jiang, Junyou Yang
Summary: We developed a new dual-modification strategy using Ce-containing compounds to minimize interfacial defect density, thus enhancing the performance and stability of flexible perovskite solar cells (PSCs). The introduction of Ce2(SO4)3 improved the electrical properties of SnO2 and reduced SnO2/perovskite interface defects, while Ce(SO4)2 enhanced the hole mobility of spiro-OMeTAD and suppressed perovskite/spiro-OMeTAD interface defects.
Article
Nanoscience & Nanotechnology
Abubakar Yakubu Haruna, Yubo Luo, Zheng Ma, Wang Li, Haiqiang Liu, Xin Li, Qinghui Jiang, Junyou Yang
Summary: The thermoelectric performance of n-type Bi2Te3 can be enhanced by doping and incorporating Cu/Cl and multiscale additives (AgBiSe2), which brings it closer to the performance of its p-type counterpart.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Engineering, Environmental
Zijun Yi, Xin Li, Bo Xiao, Qinghui Jiang, Yubo Luo, Junyou Yang
Summary: Defect-induced charge non-radiative recombination loss at perovskite/charge transport layers interfaces is a major issue for the efficiency and stability of flexible perovskite solar cells. This study proposes a comprehensive strategy to reduce the defect density at these interfaces, using TMPU material to improve conductivity of SnO2 and passivate the SnO2/perovskite interface defects, and TMFS layer to suppress perovskite surface defects and improve environmental stability. With this dual-interface engineering strategy, the optimized flexible and rigid PSCs achieve higher photoelectric conversion efficiency compared to the pristine devices, and the flexible device also demonstrates excellent mechanical durability.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Yongxin Qian, Yubo Luo, You Li, Tianshun Xiong, Luyao Wang, Wenguang Zhang, Shuangfu Gang, Xin Li, Qinghui Jiang, Junyou Yang
Summary: The study proposes a novel strategy for developing an electronic packaging material (BCN@LDH/EP) with exceptional electromagnetic wave absorption, thermal management, and flame-retardant capabilities. The double-level hollow core-shell structure (BCN@LDH) of BCN@LDH/EP offers rich heterogeneous interfaces and high specific surface area, resulting in outstanding EMW absorption performance. Additionally, the closely packed thermally conductive filler BCN@LDH provides significant thermal conductivity improvement and excellent flame retardancy to the EP composite.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Luyao Wang, Xin Li, Yongxin Qian, Wang Li, Tianshun Xiong, Yang Tao, You Li, Junwei Li, Yubo Luo, Qinghui Jiang, Junyou Yang
Summary: Due to the increased integration and miniaturization of electronic devices, traditional electronic packaging materials cannot solve electromagnetic interference in electronic devices. This study presents a novel electronic packaging material, MXene@LDH, which exhibits excellent electromagnetic wave absorption performance, thermal conductivity, and flame retardancy. The optimized MXene@LDH shows a remarkable minimum reflection loss of -52.064 dB and a maximum effective absorption bandwidth of 4.5 GHz, as well as an increase in thermal conductivity and flame retardancy.
Article
Chemistry, Physical
Abubakar Yakubu Haruna, Yubo Luo, Wang Li, Zheng Ma, Linhan Yang, Zhihong Zhang, Qinghui Jiang, Xin Li, Haiqiang Liu, Junyou Yang
Summary: An efficient method for improving the thermoelectric performance of n-type Bi2Te2.69Se0.33Cl0.03 by incorporating Ag8SnSe6 is reported in this study. The incorporation of Ag8SnSe6 increases the carrier effective mass, enhances the Seebeck coefficient, and decreases the thermal conductivity of Bi2Te2.69Se0.33Cl0.03. The high ZT value and cooling temperature drop achieved in this study make Ag8SnSe6 incorporation in n-type Bi2Te3 a strong candidate for practical applications.
MATERIALS TODAY ENERGY
(2023)
Review
Chemistry, Physical
Abdul Basit, Jiwu Xin, G. Murtaza, Lei Wei, Abdul Hameed, Guoyu Wang, Jiyan Y. Dai
Summary: This review summarizes the strategies for designing high-performance thermoelectric materials and modules using approaches such as defect engineering, interfaces, nano-porous inclusions, thin films, dislocations, nano-inclusions, and polycrystalline bulks, and discusses the fundamentals, challenges, outlooks, and future development of liquid-like thermoelectric materials Cu-2(S, Se, Te). It is expected to assist future researchers in selecting potential materials for exploring thermoelectricity and other efficient energy conversion technologies.
Article
Chemistry, Physical
Zheng Ma, Yubo Luo, Wang Li, Yingchao Wei, Chengjun Li, Abubakar Yakubu Haruna, Zhihong Zhang, Xin Li, Qinghui Jiang, Junyou Yang
Summary: Point defects play an important role in regulating the electrical and thermal transport properties of thermoelectric materials. In this study, the solubility of Mn in AgSbSe2 was effectively enhanced through entropy-driven alloying with MnSe. This led to significant improvement in carrier concentration, electrical conductivity, and reduction in lattice thermal conductivity of AgSbSe2, resulting in high ZT values of 0.96 at 750 K for (AgSbSe2)(0.7)(MnSe)(0.3) and further enhanced value of 1.18 at 750 K for (AgSbSe2)(0.7)(Mn0.99Se)(0.3) due to introduced Mn vacancies.
JOURNAL OF MATERIALS CHEMISTRY A
(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)
