Copper nanoparticles incorporated manganese dioxide nanocomposites for electrochemical capacitance application
نویسندگان
چکیده
Chemically produced coppercontaining MnO2 nanoparticles were studied using FTIR, UV-Vis spectroscopy, XRD, AFM, cyclic voltammetric and charge/discharge behaviour. Mixed nanocomposites have a crystalline size of 50 nm was calculated through Debye Scherrer’s equation from XRD analysis. The FTIR spectra recorded region 400- 4000 cm-1, clean doped Manganese dioxide nanoparticles. Mn–O can be ascribed to the stretching vibration band at 631 cm-1. bending vibrations O-H group are fundamental absorption peaks 1620 cm-1 3400 cm-1.AFM is used characterize impact surface roughness on properties MnO2, copper induced particles. Electrochemical impedance experiments investigate behaviour individual mixed as supercapacitors.
منابع مشابه
Capacitance‐Assisted Sustainable Electrochemical Carbon Dioxide Mineralisation
An electrochemical cell comprising a novel dual-component graphite and Earth-crust abundant metal anode, a hydrogen producing cathode and an aqueous sodium chloride electrolyte was constructed and used for carbon dioxide mineralisation. Under an atmosphere of 5 % carbon dioxide in nitrogen, the cell exhibited both capacitive and oxidative electrochemistry at the anode. The graphite acted as a s...
متن کاملSynergistic geometric and electronic effects for electrochemical reduction of carbon dioxide using gold-copper bimetallic nanoparticles.
Highly efficient and selective electrochemical reduction of carbon dioxide represents one of the biggest scientific challenges in artificial photosynthesis, where carbon dioxide and water are converted into chemical fuels from solar energy. However, our fundamental understanding of the reaction is still limited and we do not have the capability to design an outstanding catalyst with great activ...
متن کاملElectrochemical Quantized Capacitance Charging of Surface Ensembles of Gold Nanoparticles
Quantized double layer capacitance charging is observed for monolayers of nanometer-sized monolayer protected gold clusters (Au MPCs) anchored to macroscopic gold electrodes. The clusters were anchored in two ways. One method involves ligand place-exchange binding of an MPC covered with a butanethiolate monolayer to a preformed, self-assembled monolayer of 4,4′-thiobisbenzenethiol (TBBT) on Au....
متن کاملInvestigations on structural, optical, and AC conductivity of Polyaniline/Manganese Dioxide nanocomposites
A Polyaniline/Manganese dioxide (PANI/MnO2) nanocomposite contains five weight percentages of MnO2. It has been successfully prepared by in situ polymerization. The structural, optical, and conductivity of nanocomposites remain relative to changes with respect to the weight percentage of MnO2. The structural, morphological, optical, and electrical conductivity i...
متن کاملNano-graphene oxide-manganese dioxide nanocomposites for overcoming tumor hypoxia and enhancing cancer radioisotope therapy.
While radiotherapy (RT) is commonly used in clinics for cancer treatment, the therapeutic efficiency is not satisfactory owing to the existence of the hypoxic tumor microenvironment which seriously affects the efficiency of RT. Herein, we design polyethylene glycol (PEG)-modified reduced nano-graphene oxide-manganese dioxide (rGO-MnO2-PEG) nanocomposites to trigger oxygen generation from H2O2 t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of New Materials For Electrochemical Systems
سال: 2022
ISSN: ['1480-2430', '2292-1168', '1480-2422']
DOI: https://doi.org/10.14447/jnmes.v25i3.a05