Influence of oxalate anions on manganese electrodeposition in sulfate solution

Xue, Jianrong; Zhong, Hong; Wang, S.; Li, C. X.; Wu, Fangfang

doi:10.1007/s11581-015-1584-y

Cited by 5 publications

(4 citation statements)

References 31 publications

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“…In the industrial metallic Mn electrodeposition, NH 4 + ions were generally used as additives to buffer the pH value of the solution and adjust the coordination environment of Mn 2+ ions. [52][53][54][55] In addition, a small amount of SeO 2 additive was also considered to be beneficial to the electrodeposition of metallic Mn. [56][57][58][59][60] We therefore compared the CV tests of MnSO 4 (1 mol L À1 MnSO 4 ), SeO 2 -free MnSO 4 (1 mol L À1 MnSO 4 + 1 mol L À1 (NH 4 ) 2 SO 4 ), and SeO 2 -additive MnSO 4 (1 mol L À1 MnSO 4 + 1 mol L À1 (NH 4 ) 2 SO 4 + 0.02 g L À1 SeO 2 ) electrolytes in a three-electrode configuration using Cu foil, graphite rod and Ag/AgCl as the working, counter, and reference electrodes, respectively.…”

Section: Energy and Environmental Science Papermentioning

confidence: 99%

Aqueous all-manganese batteries

Wang,

Meng,

et al. 2023

Energy Environ. Sci.

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Section: Energy and Environmental Science Papermentioning

confidence: 99%

Aqueous all-manganese batteries

Wang,

Meng,

et al. 2023

Energy Environ. Sci.

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“…It is generally that hydrogen bubbles influence the nucleation and growth of grains and result in pitting, loose and powdery coating. 33 Chloride ions in the electrolyte can induce and promote the cathodic reduction of Au (I) so that the hydrogen bubbles generated from the side reaction of hydrogen evolution are reduced, resulting in the finer size of the gold particles. This result is favorable for obtaining bright and finegrained gold coatings especially at a low concentration of Au(I).…”

Section: Effect Of Chloride Ions On the Electroreduction Of Au(i)mentioning

confidence: 99%

Insights into the Effects of Chloride ions on Cyanide-Free Gold Electrodeposition

Yang

Jin

et al. 2020

J. Electrochem. Soc.

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It is very simple and convenient using the commercial chloroauric acid instead of sodium gold sulfite as the main salt in the Au(I) sulfite electrodeposition bath. In this paper, the effects of chloride ions on cyanide-free Au(I) electrodeposition in the gold sulfite bath are carefully investigated. Both UV-vis absorption spectroscopy and visual inspection reveal that chloride ions suppress the disproportionation reaction of Au(I) and improve the bath stability. Cyclic voltammetry indicates that chloride ions promote the cathodic reduction of Au(I). EC-SERS spectra elucidate that in the sodium sulfite solution, SO 3 2− ions firstly adsorb on the gold electrode, then experience a structural transformation (SO 3 2− → S 2 O 5 2−), and last electroreduce to) as the potential shifts negatively. In the gold sulfite electrolytes, the cathodic reduction of Au(I) and chloride ions hinder the reduction of S 2 O 5 2− ions. The gold coatings obtained from the gold sulfite electrolyte containing chloride ions present in fine and pure grains without chlorine and sulfur inclusion.

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“…As an important metal, manganese is broadly used in steelmaking and alloys of different metals, battery industry, electronics, agriculture, medicine and other industry as well as the daily life [1,2]. The main route for obtaining manganese in the industry is to electrolyse ammonium sulphate and manganese sulphate solutions, and rhodochrosite and pyrolusite are always used as the raw material in producing electrolytic manganese metal [3,4].…”

Section: Introductionmentioning

confidence: 99%

Characterisation and anti-corrosion property of Ti conversion coating on manganese surface

Qiu

Lü

Wang

et al. 2019

Corrosion Engineering, Science and Technology

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To solve the problem of chromium pollution in electrolytic manganese industry, a novel Ti conversion coating for electrolytic manganese was found to improve its anti-corrosion property. The excellent Ti conversion coating was formed on manganese surface under the optimized conditions of Ti 4+ concentration: 0.01 mol L −1 , H 2 SO 4 concentration: 4.60 g L −1 , H 2 O 2 concentration: 60 ml L −1 and immersion time: 20 s. The results of the electrochemical test exhibited that the Ti conversion coating can work well in inhibiting the Mn from corrosion, and the corrosion current density was obviously dropped from 3.52×10−4 to 7.97×10 −7 A•cm −2 . The results of XPS showed that the main composition of the conversion coating was MnO 2 , Mn 2 O 3 and TiO 2 , and the formation mechanism of the Ti conversion coating was revealed.

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Influence of oxalate anions on manganese electrodeposition in sulfate solution

Cited by 5 publications

References 31 publications

Aqueous all-manganese batteries

Aqueous all-manganese batteries

Insights into the Effects of Chloride ions on Cyanide-Free Gold Electrodeposition

Characterisation and anti-corrosion property of Ti conversion coating on manganese surface

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