Article
Materials Science, Ceramics
Satiye Korkmaz, I. Afsin Kariper, Onur Karaman, Ceren Karaman
Summary: In this study, ruthenium was bonded to reduced graphene oxide to create aerogel electrodes with high specific capacitance and energy density for symmetrical supercapacitors. Through CV voltammograms testing, the aerogel exhibited a highest specific capacitance of 328.6 F g-1 and maintained a high energy density even at high power densities.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Electrical & Electronic
Hoanh Van Ngo, Hung Tran Nguyen, Hieu Trung Le, Thanh Huu Le, Thien Tri Vu, Kien Trung Pham, Thinh Xuan Phung
Summary: This article investigates the design and manufacturing of composite electrode materials for supercapacitors. The rGO/CoFe2O4 composite material is produced by growing cobalt ferrite particles on the surface of rGO using a simple and efficient thermal reduction technique. The addition of cobalt ferrite significantly improves the electrochemical properties of rGO, making rGO/CoFe2O4 composites potential electrode materials for supercapacitors in the future.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Muhammad Sajjad, Rao Tao, Kun Kang, Shichang Luo, Li Qiu
Summary: In this study, a solvothermal synthesis method for phosphine-based POPs and rGO aerogel composites was reported, which can enhance the electrochemical performance of POPs electrodes, achieving high cycling stability and energy density. This provides a new approach for the development of high-performance supercapacitors.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Engineering, Environmental
Yuanjing Cheng, Xianxian Sun, Shuang Yang, Dan Wang, Lei Liang, Shasha Wang, Yuanhao Ning, Weilong Yin, Yibin Li
Summary: The application of advanced radar and infrared detection technology promotes the development of microwave-infrared compatible stealth technology. The preparation of hierarchically porous aerogels with excellent stealth properties has achieved remarkable results.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Peyman Khodaei Kahriz, Ali Akbar Heidari, Ali Ehsani, Hossein Mahdavi, Mohmmad Bigdeloo, Zahra Rezaei
Summary: The study investigated the use of benzidine as a reducing agent and spacer in the synthesis of graphene nanocomposites, which exhibited high specific capacitance and good cycle stability. The introduction of poly ortho aminophenol into the composite structure further enhanced its overall performance, demonstrating synergistic effects between the two materials. This composite electrode with high surface area and pore volume showed promising potential for energy storage applications.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Yury M. Volfkovich, Alexey Y. Rychagov, Valentin E. Sosenkin, Sergey A. Baskakov, Eugene N. Kabachkov, Yury M. Shulga
Summary: The study investigates the electrochemical properties of highly porous reduced graphene oxide/titanium dioxide (rGO/TiO2) nanocomposite for potential use as a supercapacitor electrode. The nanocomposite exhibited a hydrophilic specific surface area approximately half of the total surface area, and showed a reversible Faraday reaction with high recharge rate. The characteristics of the nanocomposite make it suitable for fast energy storage systems such as hybrid supercapacitors.
Article
Materials Science, Ceramics
Amira Alazmi
Summary: In this study, a novel, flexible, and self-supporting electrode based on nanostructured CoFe2O4 and rGO nanohybrid was prepared using the hydrothermal method for supercapacitor applications. The electrode exhibited high specific capacitance and excellent rate performance, attributed to its improved conductivity, nanoarchitecture, self-supporting design, flexible current collector, and hybrid composition. The integration of features in the CoFe2O4/rGO@CC electrode shows great potential for emerging supercapacitor applications.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Yuan Guo, Hui Huang, Yongpeng Zhao, Chengwei Li, Tianze Cong, Hao Zhang, Ningxuan Wen, Zeng Fan, Lujun Pan
Summary: In this study, a multidimensional all-carbon aerogel electrode composed of helical carbon nanocoils (CNCs), reduced graphene oxide (rGO), and carbon nanofibers (CNFs) was synthesized. The intercalated CNCs and the growth of CNFs enhanced the capacitance performance and cycling durability of the electrode.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Peyman Khodaei Kahriz, Ali Ehsani, Ali Akbar Heidari, Hossein Mahdavi, Mohammad Bigdeloo, Mehdi Kalhor
Summary: In this study, a simple chemical method to synthesize PPD for functionalizing graphene oxide was introduced. The PPD-rGO Aerogel was found to improve the electrochemical performance of polyorthoaminophenol electroactive film. The composite electrode exhibited a high capacitance of 1180 F/g at a current density of 1.0 A/g, showing potential for supercapacitor applications.
APPLIED NANOSCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Ting Xu, Yaxuan Wang, Kun Liu, Qingshuang Zhao, Qidi Liang, Meng Zhang, Chuanling Si
Summary: An ultralight and robust MXene/carbon nanotube aerogel with abundant pore structures, superior conductivity, and good mechanical properties is constructed. The all-solid-state supercapacitor with MXene/carbon nanotube aerogel exhibits outstanding electrochemical performance, and the flexible device can be bent from 0 to 90 degrees.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Degang Jiang, Jizhen Zhang, Si Qin, Dylan Hegh, Ken Aldren S. Usman, Jinfeng Wang, Weiwei Lei, Jingquan Liu, Joselito M. Razal
Summary: The use of porous melamine foam as a template for MXene/reduced graphene oxide aerogel allows for the successful fabrication of large size and controllable shape MXene-based aerogels, showcasing excellent performance characteristics.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Changwei Lai, Xiaoxiao Qu, Huihui Zhao, Suck Won Hong, Kwan Lee
Summary: We developed a robust asymmetric supercapacitor with improved electrochemical performance and excellent long cycle life. Innovative hierarchical honeycomb-structured NiCo2O4 electrode materials were synthesized and utilized, along with 3D rGO-PPy aerogels as negative electrode materials. The resulting asymmetric supercapacitors demonstrated significant energy storage capability and cycling performance.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Kian Yousefipour, Rasoul Sarraf-Mamoory, Amin Yourdkhani
Summary: Researchers improved the electrical conductivity and supercapacitive properties of hydrated nickel molybdate by synthesizing Fe-doped HNMO/rGO materials. They found that the material with 15 mg mL(-1) graphene oxide suspension exhibited the best electrochemical performance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Biochemistry & Molecular Biology
Xiuya Wang, Ke Wan, Pengbo Xie, Yuanyuan Miao, Zhenbo Liu
Summary: The study prepared graphene-cellulose hydrogels by a one-step hydrothermal method, followed by the preparation of porous, ultra-light, and mechanically strong graphene-cellulose aerogels through freeze-drying. These composite aerogels exhibit excellent mechanical strength and high specific capacitance, capable of bearing about 1095 times the pressure of their own weight.
Article
Polymer Science
Jelena D. Jovanovic, Stevan N. Blagojevic, Borivoj K. Adnadjevic
Summary: Composite hydrogels containing poly(methyl methacrylate/butyl acrylate/2-hydroxyethylmethacrylate) (poly-OH) and up to 60% reduced graphene oxide (rGO) were synthesized by self-assembly of graphene oxide (GO) platelets within a polymer matrix and in situ chemical reduction of GO. The effects of rGO weight fraction and drying method on the properties of the dried hydrogels were investigated. The results showed that the drying method and rGO weight fraction influenced the textural, morphological, thermal, and rheological properties of the samples.
Article
Chemistry, Physical
A. Ehsani, M. Esfahaniha, P. Khodaei Kahriz, R. Safari, H. Parsimehr
Summary: The study utilized chemically synthesized F-rGO aerogel for catechol sensing, demonstrating excellent selectivity and electrocatalytic activity. The electrode showed a linear range of 10 to 300 μM with a detection limit of 0.056 μM, along with high durability and reproducibility.
SURFACES AND INTERFACES
(2021)
Article
Engineering, Chemical
Ali Akbar Heidari, Hossein Mahdavi, Peyman Khodaei Kahriz
Summary: The study fabricated a TFC membrane for SRNF application with outstanding properties, incorporating a novel HDPE support and polydopamine layer for enhanced separation performance and solvent resistance, achieving high dye rejection rates and methanol flux.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Peyman Khodaei Kahriz, Ali Akbar Heidari, Ali Ehsani, Hossein Mahdavi, Mohmmad Bigdeloo, Zahra Rezaei
Summary: The study investigated the use of benzidine as a reducing agent and spacer in the synthesis of graphene nanocomposites, which exhibited high specific capacitance and good cycle stability. The introduction of poly ortho aminophenol into the composite structure further enhanced its overall performance, demonstrating synergistic effects between the two materials. This composite electrode with high surface area and pore volume showed promising potential for energy storage applications.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2021)
Article
Chemistry, Analytical
A. Ehsani, Z. Rezaei, A. Agah, H. Mohammad Shiri, A. A. Heidari
Summary: In this study, 4,4'-methylenedianiline was incorporated into reduced graphene oxide to form F-rGO Aerogel with high surface area and conductivity. The modified electrode showed sensitive Pb (II) sensor performance, with excellent conductivity, effective surface area, and high adsorption ability for lead (II) ions. Molecular geometry optimization and structural calculations were used to study the adsorption process, revealing strong chemisorption interaction between the graphene species and lead cations. Under optimized conditions, the active electrode system exhibited a low detection limit of 0.03 μM and a detection range of 0.01-0.3 μM, with satisfactory reproducibility and stability.
MICROCHEMICAL JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Peyman Khodaei Kahriz, Ali Ehsani, Ali Akbar Heidari, Hossein Mahdavi, Mohammad Bigdeloo, Mehdi Kalhor
Summary: In this study, a simple chemical method to synthesize PPD for functionalizing graphene oxide was introduced. The PPD-rGO Aerogel was found to improve the electrochemical performance of polyorthoaminophenol electroactive film. The composite electrode exhibited a high capacitance of 1180 F/g at a current density of 1.0 A/g, showing potential for supercapacitor applications.
APPLIED NANOSCIENCE
(2021)
Article
Engineering, Chemical
Hossein Mahdavi, Milad Karami, Ali Akbar Heidari, Peyman Khodaei Kahriz
Summary: The study demonstrates that by utilizing Polysulfone-MIL-53(Al) mixed matrix membranes, high rejection performance for various dyes and high water flux can be achieved.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Polymer Science
Zahra Nadizadeh, Hossein Mahdavi, Ali Akbar Heidari, Peyman Khodaei Kahriz
Summary: Pd-PTI nanocatalysts were synthesized with PTI as solid support and loaded Pd nanoparticles onto highly crystalline 2-D PTI nanosheets. Among them, PTI-1500-Pd showed the highest catalytic performance with ultra-high efficiency, stability, and excellent recovery of expensive Pd nanoparticles.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Engineering, Chemical
Ali Akbar Heidari, Hossein Mahdavi
Summary: This study focuses on the fabrication of thin film composite organic solvent nanofiltration (TFC OSN) membranes using a highly solvent-stable ultrafiltration (UF) support. The UF support was modified through several steps to enhance its performance and solvent stability. The resulting TFC membrane exhibited excellent rejection capability and good permeance for dyes and methanol in OSN applications, and maintained excellent solvent stability even after prolonged exposure to DMF.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2022)
Article
Engineering, Environmental
Hossein Mahdavi, Nazanin Zeinalipour, Mohammad Amin Kerachian, Ali Akbar Heidari
Summary: In this study, high-performance mixed matrix nanofiltration PVDF membranes (MMMs) were fabricated by incorporating PVDF-g-PMMA copolymer and GO and GO@SiO2 nanoparticles. The membrane showed high dye rejection and water flux enhancement due to the addition of hydrophilic copolymer and nanoparticles to the PVDF matrix. The durability and antifouling abilities of the membrane were also investigated, and significant performance was obtained.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Polymer Science
Hossein Mahdavi, Nazanin Zeinalipour, Ali Akbar Heidari
Summary: The ATRP polymerization technique was used to graft methyl methacrylate monomers onto a Poly(vinylidene fluoride) backbone, creating high rejection and good permeate Flux membranes for dye separation.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Roham Ghanbari, Peyman Khodaei Kahriz, Hossein Mahdavi
Summary: In this study, a suitable membrane was fabricated using VIPS and NIPS methods, and the synergistic effect of nanoparticles and nanosheets in the membrane was systematically investigated. The optimized membrane exhibited high flux rate, excellent dye rejection properties, significant antifouling feature, and outstanding long-term stability.
MATERIALS CHEMISTRY AND PHYSICS
(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)