Electrodeposition and characterization of manganese–bismuth system from chloride based acidic bath
| Autor: | A. Kadri, B. Benfedda, Eric Chainet, Frédéric Charlot, Stéphane Coindeau, N. Benbrahim |
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| Přispěvatelé: | Laboratoire de physique et de chimie des matériaux [Tizi-Ouzou] (LPCM), Université Mouloud Mammeri [Tizi Ouzou] (UMMTO), Laboratoire d'Electrochimie et de Physico-chimie des Matériaux et des Interfaces (LEPMI ), Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Consortium des Moyens Technologiques Communs (CMTC), Institut National Polytechnique de Grenoble (INPG), Science et Ingénierie des Matériaux et Procédés (SIMaP), Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut de Chimie du CNRS (INC)-Institut National Polytechnique de Grenoble (INPG) |
| Rok vydání: | 2011 |
| Předmět: |
Cyclic voltammetry
XRD General Chemical Engineering Inorganic chemistry Energy-dispersive X-ray spectroscopy chemistry.chemical_element 02 engineering and technology Manganese Electrochemistry 01 natural sciences Chloride Bismuth Electrodeposition Transition metal [CHIM.ANAL]Chemical Sciences/Analytical chemistry 0103 physical sciences medicine [CHIM]Chemical Sciences 010302 applied physics Aqueous solution Chemistry Mn–Bi 021001 nanoscience & nanotechnology SEM 0210 nano-technology medicine.drug Nuclear chemistry |
| Zdroj: | Electrochimica Acta Electrochimica Acta, Elsevier, 2011, 56 (3), pp.1275-1282. ⟨10.1016/j.electacta.2010.09.107⟩ |
| ISSN: | 0013-4686 |
| DOI: | 10.1016/j.electacta.2010.09.107 |
| Popis: | In this work, Mn–Bi system has been successfully electrodeposited on Cu/Si substrates from aqueous ammonium chloride containing electrolyte. A thermodynamic study of the electrolysis bath highlights the possible formation of manganese complexes ( MnCl + , MnCl 2 , MnC l 3 − ) and bismuth complexes ( BiCl 2+ , BiC l 2 + , BiCl 3 , BiC l 4 − , BiC l 5 2 − , BiC l 6 3 − ) . The mechanism process involving Mn and Bi electrodeposition is investigated by cyclic voltammetry. Mn–Bi films can be grown under potentiostatic control. The physico-chemical, morphological and structural characterizations of the deposits were carried out by scanning electron microscopy (SEM) and X-rays analysis (XRD). The results reveal a granular surface quality and a heterogeneous chemical composition of the films. The energy dispersive spectroscopy (EDS) analysis reveals the presence of manganese and bismuth peaks whose relative intensities vary according to the imposed potential and the position on the sample. The X-rays diffraction analysis showed three different crystalline phases: α-manganese (body centred cubic system), γ-manganese (body centred tetragonal system) and bismuth (rhombohedral system). |
| Databáze: | OpenAIRE |
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