Glassy carbon paste electrodes |
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| Affiliation: | 1. Chongqing Key Laboratory of Chemical Process for Clean Energy and Resource Utilization, College of Chemistry and Chemical Engineering, Chongqing University, Chongqing, 400044, PR China;2. Key Laboratory of Biorheology Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, 400044, PR China;1. Department of Chemistry, Faculty of Mathematics and Natural Sciences, University of Pristina Str. Mother Teresa, 10 000 Prishtina, Republic of Kosovo;2. Department of Analytical Chemistry Faculty of Chemical Technology, University of Pardubice Studentská 573, Pardubice 532 10, Czech Republic;3. Alma Mater Europaea Rezonanca, Glloku te Shelgjet, 10 000 Prishtina, Republic of Kosovo;1. Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemical Technology and Engineering, Berdychowo 4, PL-60965 Poznan, Poland;2. Poznan University of Technology, Faculty of Chemical Technology, Institute of Chemistry and Technical Electrochemistry, Berdychowo 4, PL-60965 Poznan, Poland;1. Department of Chemistry, Faculty of Sciences, Shahid Bahonar University of Kerman, Kerman, Iran;2. Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran;3. Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran;1. Department of Clinical Pharmacy Research, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31441, Saudi Arabia;2. Chemistry Department, Faculty of Science, Assiut University, Assiut, Egypt;3. Chemistry Department, College of Sciences, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia |
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| Abstract: | A new carbon composite electrode material, based on mixing glassy carbon (GC) microparticles with an organic pasting liquid is described. The resulting glassy carbon paste electrode (GCPE) combines the electrochemical properties of GC with the various advantages of composite electrodes. Glassy carbon pastes (GCPs) offer high electrochemical reactivity, a wide accessible potential window, a low background current, and are inexpensive, easy to prepare, modify, and renew. The new material has a lower double-layer capacitance and a higher heterogeneous rate constant (for ferricyanide) compared to conventional carbon pastes (CPs). Scanning electron microscopy (SEM) images indicate significant differences in the structure of GCPE and carbon paste electrode (CPE). Factors influencing the electrode kinetics of GCPE surfaces are discussed. The electrochemical properties and advantages of GCPE should be of broad utility in electroanalysis. |
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