Article
Environmental Sciences
Monika Patel, Neha Bisht, Priyanka Prabhakar, Raj Kumar Sen, Pradip Kumar, Neeraj Dwivedi, Mohammad Ashiq, D. P. Mondal, Avanish Kumar Srivastava, Chetna Dhand
Summary: We developed an effective electrochemical sensor using a ternary nanocomposite of reduced graphene oxide functionalized with polydopamine and alanine for simultaneous detection of four heavy metal ions (Cd2+, Pb2+, Fe2+, and Cu2+). The sensor exhibited high sensitivity and low interference in detecting the targeted heavy metal ions in water and soil samples with detection limits and sensitivities provided.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Analytical
Mengjie Su, Haitian Lan, Liang Tian, Mengyuan Jiang, Xiaoqing Cao, Cailing Zhu, Chunmei Yu
Summary: A novel electrochemical sensor based on Ti3C2Tx-rGO nanocomposite was developed for the detection of serotonin in human biofluids. The sensor exhibited high sensitivity, excellent specificity, and good stability, making it suitable for the prevention and rapid diagnosis of serotonin-related diseases.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Physical
S. Kiranmai, Charan Kuchi, Bathinapalta Sravani, Teresa Luczak, Myung Jong Kim, G. Madhavi, Y. Veera Manohara Reddy
Summary: A facile sensing platform using titanium dioxide-reduced graphene oxide nanofibers was developed for the accurate detection of epinephrine in biological fluids and pharmaceutical drugs.
SURFACES AND INTERFACES
(2022)
Article
Food Science & Technology
Jamil A. Buledi, Nasrullah Mahar, Arfana Mallah, Amber R. Solangi, Ismail M. Palabiyik, Nadeem Qambrani, Fatemeh Karimi, Yasser Vasseghian, Hassan Karimi-Maleh
Summary: This study presents a method for electrochemical monitoring of mancozeb using WO3/rGO nanocomposite. The nanocomposite was characterized and found to have good crystallinity and nanometric size. By modifying a glassy carbon electrode, the detection of mancozeb was achieved, and acceptable recovery values were obtained in real vegetable samples.
FOOD AND CHEMICAL TOXICOLOGY
(2022)
Article
Chemistry, Analytical
Jianzhi Huang, Zhixin Qiu, Jinhao Lin, Junlong Lin, Fuqing Zhu, Guohao Lai, Yanliang Li
Summary: In this study, a flower-like cobalt anchored on reduced graphene oxide (f-Co@rGO) nanocomposite was synthesized using a simple one-pot hydrothermal reduction method. The prepared f-Co@rGO/GCE electrochemical sensor achieved ultrasensitive quantitative determination of metronidazole at the nanomole per liter level, with a wide linear detection range of 0.025-500 nM and a low detection limit of 0.015 nM (S/N = 3), surpassing previous works. Moreover, the sensor was successfully used for accurate determination of metronidazole in real serum samples. The f-Co@rGO/GCE electrochemical sensor has great potential for clinical monitoring and drug quality control of metronidazole.
MICROCHEMICAL JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Jinhua Shao, Chao Wang, Yiling Shen, Jinlei Shi, Dongqing Ding
Summary: This study systematically surveys the literature on the electrochemical analysis of tea and analyzes its development. Through bibliometric analysis, it identifies three stages of electrochemical analysis of tea and highlights the investigation of the electrochemical behavior of key components. High-performance electrochemical sensors have become a hot research topic with advancements in materials science.
FRONTIERS IN CHEMISTRY
(2022)
Article
Chemistry, Physical
Xiaoqian Zha, Xin Sun, Huacong Chu, Yang Wang
Summary: Here, a novel core-shell structured FeNi/covalent organic framework (TAPB-DMTP-COF) nanocomposite was synthesized and its structural and electrochemical characteristics were analyzed. The FeNi@TAPB-DMTP-COF core-shell nanocomposite exhibited excellent electrochemical oxidation response toward gallic acid. A feasible electrochemical sensor was established by optimizing the parameters, and it was successfully applied to the analysis of gallic acid in real samples.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Food Science & Technology
Jamil A. Buledi, Amber R. Solangi, Ali Hyder, Nadir H. Khand, Saba A. Memon, Arfana Mallah, Nasrullah Mahar, Elena Niculina Dragoi, Pau Show, Marzyeh Behzadpour, Hassan Karimi-Maleh
Summary: Recent studies have evaluated the widespread use of azo dyes as food colorants, highlighting the potential health risks associated with excessive consumption. To address the need for reliable quantification of the azo dye amaranth, researchers have developed a chemically modified sensor using SnO2/rGO nanocomposites. The sensor exhibited excellent electrocatalytic properties and showed promising results for the quantification of amaranth in soft drinks and water samples. The study also optimized various parameters for the determination process and demonstrated the sensor's anti-interference and stability profiles.
FOOD AND CHEMICAL TOXICOLOGY
(2022)
Article
Engineering, Environmental
Damini Verma, Amit K. Yadav, Maumita Das Mukherjee, Pratima R. Solanki
Summary: A highly efficient electrochemical BPA sensor utilizing reduced graphene oxide and molybdenum trioxide nanoparticles nanocomposite has been developed, providing excellent sensitivity and accuracy for BPA detection. The in situ synthesis of MoO(3)Nps onto the surface of rGO sheets through one-pot hydrothermal synthesis has created a superior platform for BPA detection, promising potential application in detecting other estrogenic substrates in the future.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Mohammad Ashfaq, Neetu Talreja, Divya Chauhan, C. A. Rodriguez, Adriana C. Mera, Mangalaraja Ramalinga Viswanathan
Summary: Gallic acid (GA) is a commonly found polyphenols compound that has significant impacts on aquatic and human life. This study successfully synthesized r-GO-Cu/Bi-NRs nanorods with enhanced photocatalytic degradation ability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Chuanqin Zhou, Shuting Shi, Yanping Wei, Aiting Chen, Nana Tang, Jingsong Zuo, Quanguo He, Peihong Deng
Summary: In this study, hollow tubular manganese-cobalt sulfide (MnS/Co3S4) hybrids were synthesized and anchored on graphene oxide (GO) using a hydrothermal method and ultrasonic dispersion. The resulting nanocomposites were drop-coated onto a glassy carbon electrode (GCE) to construct a sensitive sensor for acetaminophen (AC) detection. The electrochemical performance of the MnS/Co3S4-ERGO/GCE was evaluated, showing excellent electrocatalytic activity for AC oxidation. The method demonstrated high accuracy for AC determination in commercial tablets and human serum samples, with satisfactory recoveries.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Ana Barra, Oana Lazar, Aida Pantazi, Maria J. Hortiguela, Gonzalo Otero-Irurueta, Marius Enachescu, Eduardo Ruiz-Hitzky, Claudia Nunes, Paula Ferreira
Summary: A green, simple, and cost-effective one-step reduction methodology using caffeic acid as reducing agent is presented in this study. The improvement of hydrothermal reduction in the presence of CA is confirmed by experimental analyses, showing promising applications for the synthesized rGO.
Article
Materials Science, Multidisciplinary
B. R. Sivasankaran, M. Balaji
Summary: Gallium oxide (Ga2O3) nanoparticles were prepared through ultrasonic irradiation and calcination, while Ga2O3/rGO nanocomposites were synthesized by hydrothermal method. The nanocomposites exhibited excellent ammonia sensing response at room temperature.
Article
Biotechnology & Applied Microbiology
Ahmad Umar, Ahmed A. Ibrahim, Hassan Algadi, Hasan Albargi, Mabkhoot A. Alsairi, Yao Wang, Sheikh Akbar
Summary: Herein, a room-temperature NO2 gas sensor based on supramolecularly assembled isonicotinamide-graphene oxide nanocomposite (Iso-rGO) and Iso-rGO/Carbon felt (CF) electrode was prepared and studied. The sensor showed excellent reductive behavior of NO2 gas at room temperature, with a linear range of 1-30 ppm and a low detection limit of 1 ppm. The Iso-rGO/CF electrode exhibited high sensitivity and good stability for more than 30 days, making it suitable for the sensitive detection of gaseous NO2 in real samples.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2022)
Article
Chemistry, Analytical
Smita R. Bhardiya, Ambika Asati, Harendra Sheshma, Ankita Rai, Vijai K. Rai, Manorama Singh
Summary: An ecofriendly SnO2 nanoparticles@bioconjugated reduced graphene oxide nanocomposite was constructed for selective and sensitive detection of cadmium (II) in water samples. The synergistic effect of SnO2 and bioconjugated reduced graphene oxide significantly enhanced the electrocatalytic efficiency of the electrode, resulting in a linear quantification range of 0.001-0.4 ppm with a detection limit of 1 x 10(-4) ppm and sensitivity of 67.43 mu A/ppm. Real sample analysis using tap water and ground water samples showed excellent recovery results.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
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)