Article
Electrochemistry
Salih Zeki Bas, Nese Yuncu, Keziban Atacan, Mustafa Ozmen
Summary: The electrochemical results showed that the NiFe2O4-rGO nanocomposite modified SPE exhibited higher sensing performance towards the oxidation of bisphenol A than other ferrite-based SPEs, with good linearity, low detection limit, and high sensitivity. The specificity of the sensor towards BPA was evaluated by analyzing interference effects, and satisfactory responses were obtained when detecting BPA in water bottle samples using only a few drops of the real sample diluted with a phosphate buffer solution.
ELECTROCHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Supakeit Chanarsa, Jaroon Jakmunee, Kontad Ounnunkad
Summary: A bi-functional material based on silver nanoparticles-reduced graphene oxide composite was successfully synthesized for the construction of a label-free electrochemical immunosensor. The material showed good conductivity/electroreactivity and could generate an analytical response for the detection of human immunoglobulin G. Detection of IgG in human serum using the immunosensor displayed satisfactory accuracy and the potential for further development in clinical diagnosis.
FRONTIERS IN CHEMISTRY
(2021)
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
Ishita Garima, Abhay Sachdev, Ishita Matai
Summary: In this study, an electrochemical sensor based on self-assembled hybrid nanocomposite of cobalt oxyhydroxide nanoflakes and reduced graphene oxide was developed for the determination of clonazepam in different beverages. The sensor showed high sensitivity and reliable detection limit, making it suitable for on-site screening of illicit drugs in clinical and forensic settings.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
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, Analytical
Ahmad Umar, M. Shaheer Akhtar, Sadia Ameen, M. Imran, Rajesh Kumar, Yao Wang, Ahmed A. Ibrahim, H. Albargi, Mohammed Jalalah, Mabkhoot A. Alsaiari, M. S. Al-Assiri
Summary: This work describes the preparation of spinel NiMn2O4 nanodisks decorated reduced graphene oxide (rGO) via low-temperature colloidal solution method and analyzes their performances as electro-active electrode for electrochemical sensor and supercapacitors. The results showed high sensitivity and specific capacitance of the NiMn2O4/rGO composite, making it a promising electrode material for high-performance sensing and supercapacitors.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Sana T. K. Fathima, Arshiya A. Banu, T. Devasena, Sundara Ramaprabhu
Summary: A sensitive electrochemical sensor for detecting 1,4-dioxane was developed by modifying a glassy carbon electrode with a reduced graphene oxide-curcumin nanocomposite. The sensor showed superior sensitivity with a lower detection limit compared to the target defined by the World Health Organization.
Review
Environmental Sciences
Guangzhen Liu, Zhensheng Xiong, Liming Yang, Hui Shi, Difan Fang, Mei Wang, Penghui Shao, Xubiao Luo
Summary: Graphene has great potential in various applications due to its excellent properties, but still has some defects; the electrochemical method is a simple, clean method to prepare graphene and its derivatives rapidly, with important environmental significance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Food Science & Technology
Haotian Yu, Wei Guo, Xin Lu, Hui Xu, Qian Yang, Jianxin Tan, Wei Zhang
Summary: This review tracks the development of reduced graphene oxide (rGO) nanocomposite materials electrochemical biosensors for the detection of foodborne pathogenic bacteria, discussing the preparation of rGO nanocomposite electrochemical biosensors and their working mechanism.
Article
Chemistry, Multidisciplinary
Behzad Mirzaei, Ali Zarrabi, Abdollah Noorbakhsh, Abbas Amini, Pooyan Makvandi
Summary: Curcumin is a polyphenolic compound with anti-oxidative and anti-cancer properties, which is crucial in cancer therapy. An electrochemical sensor based on beta-cyclodextrin-reduced graphene oxide nanocomposite was fabricated for measuring curcumin concentration, showing good electrochemical properties and sensitivity. The sensor exhibited selectivity in detecting curcumin in the presence of other electroactive species, with a linear response over a specific range and a low detection limit.
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
Chemistry, Multidisciplinary
Luyen Thi Tran, Hoang Vinh Tran, Hue Thi Minh Dang, Anh Van Nguyen, Thuy Hong Tran, Chinh Dang Huynh
Summary: A novel nanostructured electrode material based on ERGO/PANi NWs/AgNFs was fabricated site-specifically onto a Pt microelectrode using a three-step electrochemical procedure, showing high electrochemical activity and biocompatibility. This optimized nanocomposite was used for developing an electrochemical DNA sensor with enhanced signal and a detection limit of 2.70 x 10(-15) M, highlighting its potential for miniaturization and high sensitivity.
Article
Energy & Fuels
M. Muthuselvi, K. Jeyasubramanian, G. S. Hikku, M. Muthuselvan, Muthusankar Eswaran, N. Senthil Kumar, Vinoth Kumar Ponnusamy
Summary: In this study, Y(2)O(3)NPs-doped rGONSs nanocomposites (Y-rGO) were prepared and applied as hybrid electrode materials for evaluating supercapacitor performances. It was found that the 5 wt% Y-rGO displayed improved supercapacitor performance with high specific capacitance and excellent cyclic retention, suggesting its commercial viability for energy storage devices.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
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
Vahid Riahifar, Nahid Haghnazari, Fatemeh Keshavarzi, Fariborz Nasri
Summary: The modified Fe3O4@Au@Cys/rGO/GCE sensor showed excellent electrocatalytic response for nitrite detection, with a detection range of 0.03-344 and 344-2215 μM and a limit of detection of 8 nM. The sensor exhibited reliable quantitative measurement of nitrite in human serum, urine, and water, as well as high stability and reproducibility in all evaluations. The analytical results were compared with similar methods reported in the literature.
MICROCHEMICAL JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Xiao-Sheng Liu, Hai-Zhen Liu, Ning Qiu, Yan-Bing Zhang, Guang-Yao Zhao, Li Xu, Zhi-Qiang Lan, Jin Guo
Summary: In this study, NbF5 was successfully used to improve the cycling properties of MgH2-AlH3 composite, leading to a stable hydrogen desorption capacity during cycling. The addition of NbF5 is able to reduce pulverization of the composite during cycling, enhancing the material's stability.
Article
Chemistry, Physical
Hao Zhang, Wenzheng Zhou, Dongyuan Huang, Limin Ou, Zhiqiang Lan, Xianqing Liang, Haifu Huang, Dan Huang, Jin Guo
Summary: A novel tri-doped hierarchical porous carbon for sulfur host was prepared by pyrolysis of gelatin and a facile template process, and a sulfur-porous carbon composite was synthesized as cathode material for lithium sulfur battery via melt diffusion. The composite electrode with optimum melting time showed high specific discharge capacity, super rate capacity, and excellent long cycle stability, attributed to the effective nitrogen-containing and oxygen-containing groups and strong S-O bonds. The appropriate macropores and/or macrohollows not only provided charge transfer channels, but also effectively adsorbed crystalline sulfur, leading to improved electrochemical performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Hua Ning, Junlong Deng, Zhipeng Meng, Xingyu Zhou, Zhiqiang Lan, Jin Guo
Summary: The Mg17Al12-BaO composite synthesized via mechanical milling shows superior hydrogen storage performance, with BaO decreasing the enthalpy of hydrogenation of Mg17Al12 and lowering the hydrogen absorption/desorption temperature. Density functional theory calculations demonstrate that BaO improves adsorption energy and dissociation barrier of hydrogen on the Mg17Al12(110) surface.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Geng Wei, Liqing Yan, Haifu Huang, Faxin Yan, Xianqing Liang, Shuaikai Xu, Zhiqiang Lan, Wenzheng Zhou, Jin Guo
Summary: A self-supported 3D hetero-structured Co3O4 array was successfully synthesized on Ni foam under hydrothermal conditions, with Co3O4 nanowires anchored onto Co3O4 nanoflakes to enhance surface area and promote electrolyte ion diffusion. The optimized hetero-structured Co3O4 array exhibited remarkable super-capacitive performance, with high specific capacitance and rate capability. Additionally, the hybrid supercapacitor device assembled using the Co3O4 array and graphene showed high energy density and cycle stability, demonstrating great potential for supercapacitor application.
APPLIED SURFACE SCIENCE
(2021)
Article
Nanoscience & Nanotechnology
Haizhen Liu, Chenglin Lu, Xinchun Wang, Li Xu, Xiantun Huang, Xinhua Wang, Hua Ning, Zhiqiang Lan, Jin Guo
Summary: The combination of V2C and Ti3C2 in MgH2 significantly improves hydrogen storage performance, enhancing hydrogen desorption rate and cycling stability. V2C and Ti3C2 promote the hydrogen-releasing process of MgH2 and may facilitate the transfer of hydrogen atoms or molecules through grain boundaries and interfaces. This study provides new insights into the hydrogen storage behaviors and mechanisms of MgH2 catalyzed by MXenes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Metallurgy & Metallurgical Engineering
Chenglin Lu, Haizhen Liu, Li Xu, Hui Luo, Shixuan He, Xingqing Duan, Xiantun Huang, Xinhua Wang, Zhiqiang Lan, Jin Guo
Summary: This work demonstrates the significant improvement of hydrogen sorption performance of MgH2 by introducing two-dimensional V2C MXene. The addition of V2C reduces the onset hydrogen desorption temperature and enhances the hydrogen release capacity and cycling stability of MgH2. Microstructure studies reveal that V2C acts as an efficient catalyst for the hydrogen desorption reaction. The density functional theory calculations provide insights into the mechanism of performance enhancement.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
Hong Fu, Jiawei Nong, Xiaobin Wen, Huiren Liang, Jin Guo, Wenzheng Zhou, Xiantun Huang, Haizhen Liu, Hua Ning, Zhiqiang Lan
Summary: The synthesis of a carbon-supported manganese monoxide nanocomposite (MnO@C) significantly improved the dehydrogenation/hydrogenation properties of magnesium hydride (MgH2), with reduced activation energies and enhanced hydrogen storage performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Engineering, Environmental
Zhiqiang Lan, Hong Fu, Ruolin Zhao, Haizhen Liu, Wenzheng Zhou, Hua Ning, Jin Guo
Summary: In this study, the hydrogen storage properties of MgH2 were improved by doping nitrogen-doped niobium carbide-supported niobium pentoxide. The doped composite showed a higher hydrogen uptake capacity, better cyclic stability, and the ability to release hydrogen at lower temperatures. Mechanism analysis revealed that the improvement was attributed to the suppression of MgH2 grain size, the presence of more active sites, and the elongation of Mg-H bond length.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Hua Ning, Guang Wei, Lili Zhao, Zhipeng Meng, Zhiwen Wang, Zhiqiang Lan, Haizhen Liu, Jin Guo, Junlong Deng
Summary: Using density functional theory, it was found that Ti-containing clusters can effectively enhance the adsorption energy and dissociation barrier of hydrogen on the Mg17Al12 surface, promoting hydrogenation reactions. Additionally, H2 molecules can spontaneously dissociate into H atoms on certain Ti-containing surfaces.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Chemistry, Multidisciplinary
Limin Ou, Shengheng Nong, Ruoxi Yang, Yaoying Li, Jinrong Tao, Pan Zhang, Haifu Huang, Xianqing Liang, Zhiqiang Lan, Haizhen Liu, Dan Huang, Jin Guo, Wenzheng Zhou
Summary: Compared with the polycrystalline system, the single-crystalline ternary cathode material has better cycle stability. In this study, a simple method of adding and calcination was used to investigate the surface modification of the single-crystalline nickel-rich ternary cathode material, and it was found that both doping and coating can enhance the structural stability and cycling performance, with the single coating showing the best effect.
Article
Nanoscience & Nanotechnology
Haizhen Liu, Shixuan He, Guangxu Li, Ye Wang, Li Xu, Peng Sheng, Xinhua Wang, Tao Jiang, Cunke Huang, Zhiqiang Lan, Wenzheng Zhou, Jin Guo
Summary: AlH3 ball milled in air with layered Ti3C2 shows excellent hydrogen storage performance, with low initial decomposition temperature and high hydrogen release capacity, offering a promising solution for achieving high-capacity and low-temperature hydrogen storage economically and conveniently.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Zhiqiang Lan, Xiaobin Wen, Liang Zeng, Ziqi Luo, Huiren Liang, Weitao Shi, Feifan Hong, Haizhen Liu, Hua Ning, Wenzheng Zhou, Jin Guo
Summary: The incorporation of (Ni-V2O3)@C nanoparticles was introduced to enhance the hydrogen storage performance of Mg/MgH2 systems. The composite sample exhibited improved hydrogenation and dehydrogenation kinetics, with a lower initial hydrogenation temperature and higher hydrogen absorption and desorption capacities compared to pristine MgH2. The addition of (Ni-V2O3)@C nanoparticles acted as a hydrogen pump, promoting hydrogen diffusion and dissociation within the Mg/MgH2 system.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Metallurgy & Metallurgical Engineering
Liang Zeng, Zhiqiang Lan, Baobao Li, Huiren Liang, Xiaobin Wen, Xiantun Huang, Jun Tan, Haizhen Liu, Wenzheng Zhou, Jin Guo
Summary: Carbon-supported Ni3S2 catalyst can effectively improve the hydrogen storage performance of MgH2, enhancing its hydrogenation/dehydrogenation kinetics and hydrogen absorption/release capacities. The improvement is attributed to the multi-phase catalytic action of C, Mg2Ni, and MgS formed by the reaction between Ni3S2 and Mg.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
Xiaobin Wen, Huiren Liang, Ruolin Zhao, Feifan Hong, Weitao Shi, Haizhen Liu, Haiqiang Chen, Wenzheng Zhou, Jin Guo, Zhiqiang Lan
Summary: In this study, different types of porous niobium pentoxide were prepared to improve the hydrogen storage properties of magnesium hydride. It was found that carbon-embedded porous niobium pentoxide played a crucial role in enhancing the hydrogen storage performance of magnesium hydride.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Haizhen Liu, Li Xu, Yu Han, Xin Chen, Peng Sheng, Shumao Wang, Xiantun Huang, Xinhua Wang, Chenglin Lu, Hui Luo, Shixuan He, Zhiqiang Lan, Jin Guo
Summary: A gaseous and solid-state (G-S) hybrid hydrogen storage system has been developed with a high volumetric hydrogen storage density and energy storage efficiency. It combines gas and solid-state hydrogen storage technologies to store hydrogen at low working pressure, showing promise for stationary hydrogen storage applications.
GREEN ENERGY & ENVIRONMENT
(2021)