Article
Materials Science, Multidisciplinary
Songyan Wang, Kaiwen Cao, Lianghua Xu, Yuanjian Tong
Summary: CNTs/RGO composite fibers were fabricated by chemical vapor deposition method, and the hydrophilicity of the fibers was modified by mixed acid treatment. The modified fibers exhibited larger specific surface area and improved electrochemical performance, making them suitable for supercapacitor electrode material.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Physical
Chenxue Yao, Jie Xue, Lijian Xu, Yan Su, Jidong Bu, Rodney D. Priestley, Shifeng Hou
Summary: By synthesizing PDA/CG microspheres, the novel Pt-based electrocatalysts exhibit improved structure and enhanced electrocatalytic performance, showing excellent activity towards methanol oxidation reaction.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Zicheng Li, Yingkui Guo, Hongyan Yue, Xin Gao, Shuo Huang, Xiaohua Zhang, Yanfei Yu, Haopeng Zhang, Hengwei Zhang
Summary: The combination of Ti3C2Tx MXene and graphene oxide into GMA resulted in a highly sensitive electrode for the detection of EP, with a low detection limit and good repeatability and stability when testing real urine samples.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2021)
Article
Green & Sustainable Science & Technology
Anastasia Memetova, Inderjeet Tyagi, Pratibha Singh, Elena Neskoromnaya, Rama Rao Karri, Andrey Zelenin, Nariman Memetov, Alexander Babkin, Roman Stolyarov, Nikolay Chapaksov, Alexander Gusev, Nabisab Mujawar Mubarak, Alexey Tkachev, Suhas
Summary: Aerogel based on reduced graphene oxide was synthesized and its performance in methane storage was investigated. The results showed excellent gravimetric methane adsorption capacity but low volume adsorption. Overall, the aerogel exhibited comparable performance to other adsorbents.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Materials Science, Multidisciplinary
Sachin Kumar, Dilbag Singh, Deepak Pathania, Abhishek Awasthi, Kulvinder Singh
Summary: In recent years, there has been a rapid rise in the pharmaceutical industry, necessitating the importance of monitoring the concentration of potentially hazardous substances in human fluids and the environment. This study presents the synthesis of MoS2/N-rGO for electrochemical sensing of epinephrine. The MoS2/N-rGO heterostructure was prepared using advanced hummer and hydrothermal methods, and characterized by various techniques. The results demonstrated enhanced electrocatalytic performance and excellent selectivity of the MoS2/N-rGO modified GCE for epinephrine sensing.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Rui Zhang, Qingke Tan, Shouchun Bao, Jianbin Deng, Yan Xie, Fei Zheng, Guanglei Wu, Binghui Xu
Summary: This work presents a hierarchical reduced graphene oxide (RGO) supportive matrix with ZnO and SnO2 nanoparticles immobilized, showing outstanding lithium-ion storage performance. The unique hierarchical structure of ZnO@SnO2/RGO-H sample enhances mechanical strength, ionic and electric conductivities, leading to a large specific capacity and good rate capability in lithium-ion storage processes. The industrially mature spray drying method for synthesizing RGO based hierarchical products can be further developed for wider applications.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Physical
Serhii Tkachenko, Vendula Bednarikova, Olha Ksenzova, Michaela Remesova, Karel Slamecka, Jaroslav Cihlar, Matej Balaz, Andrea Deak, Ladislav Celko
Summary: In this study, molybdenum-based composite powders were prepared using the spray drying method. The effects of precursor solution type and chemical composition on the morphology and microstructure of the powders were investigated. The powders produced from water-ethanol suspensions showed superior characteristics compared to those produced from aqueous solutions in terms of particle size, homogeneity of alloying elements, and reduction efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Engineering, Environmental
Raja Nehru, Balamurugan Senthil Kumar, Chiu-Wen Chen, Cheng-Di Dong
Summary: This study successfully designed a MoS2 nanosheet array decorated on reduced graphene oxide for the electrochemical detection of nitrobenzene in water. The developed sensor showed a wide linear range, low limit of detection, excellent sensitivity, good cycle stability, and repeatability. It can effectively detect hazardous nitrobenzene in tap and river water samples.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Jae Hun Choi, Jin-Sung Park, Yun Chan Kang
Summary: This study introduces a procedure for the formation of vanadium dioxide-nanoflake-reduced graphene oxide composite microspheres with open pores through spray pyrolysis, which exhibits high rate capability and stable cycle performance as a cathode for zinc-ion batteries.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Chemical
Yuhui Jia, Guorong Xu, Xiaochan An, Yunxia Hu
Summary: Inspired by the special antiwetting properties of graphene-based membrane, a simple and scalable approach has been developed to fabricate anti-wetting composite membranes with a reduced graphene oxide (rGO) skin layer and a microporous polytetrafluomethylene (PTFE) substrate. The prepared rGO-PTFE composite membrane exhibited outstanding membrane distillation performance with high water flux, excellent salt rejection and robust anti-wetting properties.
Article
Biochemistry & Molecular Biology
Owais Jalil, Chandra Mouli Pandey, Devendra Kumar
Summary: An ultrasensitive electrochemical biosensor was developed using MoS2@rGO nanohybrid as the sensing platform, allowing for label-free detection of EpCAM and successful detection of EpCAM antigen in different samples. The biosensor exhibited high selectivity, reproducibility, and stability.
BIOELECTROCHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Jingyi Wang, Shaojie Lu, Mingyu Ye, Xiaowan Zhan, Hongbing Jia, Xin Liao, Antonio Francisco Arcanjo de Araujo Melo
Summary: Aramid nanofibers/reduced graphene oxide (ANFs/RGO) film electrodes were prepared by vacuum-assisted filtration and hydroiodic acid reduction. These film electrodes exhibit a combination of mechanical and electrochemical properties, with a tensile strength of 184.5 MPa and a volumetric specific capacitance of 134.4 F/cm(3) at a current density of 0.125 mA/cm(2). The film electrodes also show a superior cycle life with 94.6% capacitance retention after 5000 cycles. This type of free-standing film electrode may have great potential for flexible energy-storage devices.
Article
Chemistry, Multidisciplinary
Su-Ho Cho, Jong-Heon Kim, Il-Gyu Kim, Jeong-Ho Park, Ji-Won Jung, Hyun-Suk Kim, Il-Doo Kim
Summary: Sodium-ion batteries (SIBs) are being studied more due to the affordability of sodium (Na) and their similarity to lithium-ion batteries (LIBs). By incorporating molybdenum sulfide (MoS2) into carbon nanofibers encapsulated with reduced graphene oxide (MoS2@CNFs@rGO) composite, high-performance anodes for SIBs were achieved with increased capacity and improved stability over cycles. The synergy between carbon nanofibers (CNFs) and reduced graphene oxide (rGO) provided efficient electron pathways and prevented sulfur dissolution, offering a new perspective on MoS2-based anode materials for practical SIBs.
Article
Materials Science, Ceramics
Mahsa Mohsenpour, Malek Naderi, Arash Ghazitabar, Mohammad Aghabararpour, Davoud Fatmehsari Haghshenas
Summary: The composite of cellulose derived carbon/graphene/ZnO aerogel as an electrode exhibited high capacitance, low resistance, and excellent cyclic stability. Introducing polyaniline further enhanced capacitance and reduced charge transfer resistance in the electrode. Overall, the synthesized composite shows promise for lightweight freestanding electrodes with high electrochemical performance in the new generation.
CERAMICS INTERNATIONAL
(2021)
Article
Electrochemistry
Andrii Kachmar, Maciej Tobis, Elzbieta Frackowiak
Summary: This study investigates the use of pyrite-like structure transition metal dichalcogenides (TMDs) NiS2 in electrochemical capacitors and the preparation of reduced graphene oxide (rGO) as a substrate for NiS2 deposition. The study analyzes the influence of pH on the structural and textural properties of rGO and compares the electrochemical response of rGO samples from different pH solutions. The results show that the addition of 5 wt% NiS2 significantly improves the capacitive response, and an asymmetric cell with rGO/5 wt% NiS2 as the positive electrode and rGO pH 12 as the negative electrode achieves high capacitance and electrochemical efficiency.
Article
Nanoscience & Nanotechnology
Seung-Keun Park, Yun Chan Kang
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Nanoscience & Nanotechnology
Seung-Keun Park, Jul-Sung Park, Yun Chan Kang
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Nanoscience & Nanotechnology
Bo-Young Kim, Ji-Wook Yoon, Jin Koo Kim, Yun Chan Kang, Jong-Heun Lee
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Engineering, Environmental
Jin Koo Kim, Jong Hwa Kim, Yun Chan Kang
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Engineering, Environmental
Seung-Keun Park, Su Hyun Yang, Yun Chan Kang
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Engineering, Environmental
Young Jun Hong, Seung-Keun Park, Kwang Chul Roh, Jung-Kul Lee, Yun Chan Kang
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Engineering, Environmental
Seung-Keun Park, Jin Koo Kim, Yun Chan Kang
CHEMICAL ENGINEERING JOURNAL
(2018)
Article
Thermodynamics
Sanjay K. S. Patel, Sanath Kondaveeti, Sachin V. Otari, Ravi T. Pagolu, Seong Hun Jeong, Sun Chang Kim, Byung-Kwan Cho, Yun Chan Kang, Jung-Kul Lee
Article
Engineering, Environmental
Sanjay K. S. Patel, Sachin V. Otari, Jinglin Li, Dong Rip Kim, Sun Chang Kim, Byung-Kwan Cho, Vipin C. Kalia, Yun Chan Kang, Jung-Kul Lee
JOURNAL OF HAZARDOUS MATERIALS
(2018)
Article
Chemistry, Physical
Jin-Sung Park, Jung Sang Cho, Yun Chan Kang
JOURNAL OF POWER SOURCES
(2018)
Article
Chemistry, Multidisciplinary
Seung-Keun Park, Gi Dae Park, Yun Chan Kang
Article
Chemistry, Multidisciplinary
Gi Dae Park, Yun Chan Kang
Article
Materials Science, Ceramics
Kyong-Soo Hong, Miae Kim, Myoung Gyu Ha, Jong Pil Kim, Jang-Hee Yoon, Jong Hwa Kim, Ho-Soon Yang, Hyun Gyu Kim
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2019)
Article
Chemistry, Physical
Weon-Sik Chae, Sinyoung Cho, Joo-Yun Jung, Jong-Hwa Kim, Jong-Soo Lee
Summary: This study investigates the excited-state exciton recombination dynamics of perovskite quantum dots (QDs). The results reveal that perovskite QDs have multiple intrinsic exciton recombination routes and placing them on a photonic Ag nanotip array improves long-term photoluminescence stability.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Seung-Keun Park, Jung-Kul Lee, Yun Chan Kang
ADVANCED FUNCTIONAL MATERIALS
(2018)
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)