Electroless deposition of copper in acidic solutions using hypophosphite reducing agent

2005 ◽  
Vol 36 (1) ◽  
pp. 69-75 ◽  
Author(s):  
R. Touir ◽  
H. Larhzil ◽  
M. EbnTouhami ◽  
M. Cherkaoui ◽  
E. Chassaing
Keyword(s):  
Electroless Deposition ◽  
Reducing Agent ◽  
Acidic Solutions

scholarly journals Electroless deposition of Fe-Ni alloys from acidic and alkaline solutions using hypophosphite as a reducing agent

2019 ◽  
Vol 84 (11) ◽  
pp. 1199-1208
Author(s):  
Stojan Djokic ◽  
Zeljka Antic ◽  
Nada Djokic ◽  
Thomas Thundat
Keyword(s):  
Electroless Deposition ◽  
Amorphous Structure ◽  
Reducing Agent ◽  
Experimental Results ◽  
Alkaline Solutions ◽  
Acidic Solutions ◽  
Ni Alloys ◽  
Alkaline Conditions ◽  
Temperature Deposition ◽  
Hydrolysis Of

The deposition of Fe?Ni alloys from acidic and alkaline solutions, using hypophosphite as a reducing agent, is studied in this work. The experimental results confirm the autocatalytic nature of this process. The composition of alloys is practically independent of the temperature deposition. Fe?Ni alloys produced from acidic solutions contained less than 1% Fe. The amount of Fe in Fe?Ni alloys produced from alkaline solutions was estimated to be about 15 %. The deposition of Fe?Ni alloys was significantly faster in the alkaline than in the acidic solutions, due to more pronounced hydrolysis of Fe(II) and Ni(II) ions under the alkaline conditions. The Fe?Ni alloys produced from both acidic and alkaline solutions contain phosphorus and as such have amorphous structure.

Investigation of Cu growth phenomena on Ru substrate during electroless deposition using hydrazine as a reducing agent

2015 ◽  
Vol 151 ◽  
pp. 249-255 ◽  
Author(s):  
Kwang Hwan Kim ◽  
Taeho Lim ◽  
Kyung Ju Park ◽  
Hyo-Chol Koo ◽  
Myung Jun Kim ◽  
...  
Keyword(s):  
Electroless Deposition ◽  
Reducing Agent

Study on the Fabrication and Properties of Ni-P Composite Coating

2013 ◽  
Vol 537 ◽  
pp. 265-268
Author(s):  
Zhao An ◽  
Ming Ya Li ◽  
Nian Hao Ge ◽  
Xiao Ying Li ◽  
Qiu Fan Li ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Heat Treatment ◽  
Phase Composition ◽  
Surface Morphology ◽  
Composite Coating ◽  
Electroless Deposition ◽  
Sample Surface ◽  
Reducing Agent ◽  
Experimental Results ◽  
Complexing Agent

In this paper, the method of electroless deposition of nickel-phosphorous composite coating on the sample surface is employed. The effect of the complexing agent ratio on the surface morphology and phase composition of nickel-phosphorus coating when the main salt and reducing agent concentration unchanged has been studied. The influence of heat treatment on properties and microstructure of coatings are also investigated. Experimental results show that in the case of salt and reducing agent concentration unchanged, complexing agent concentration has strong effect on the morphology of the coatings and the crystal structure of the composite coating. During heat treatment, the morphology of the composite coating changed significantly, and the hardness was improved a certain degree for all the samples, which is related to the precipitation of Ni3P.

scholarly journals Application of a New Dehydroascorbic Acid Reducing Agent in the Analysis of Vitamin C Content in Food

Molecules ◽  
2021 ◽  
Vol 26 (20) ◽  
pp. 6263
Author(s):  
Artur Mazurek ◽  
Marzena Włodarczyk-Stasiak
Keyword(s):  
Vitamin C ◽  
High Performance ◽  
Dehydroascorbic Acid ◽  
Total Content ◽  
High Reactivity ◽  
Reducing Agent ◽  
Spectrophotometric Detection ◽  
Acidic Solutions ◽  
Low Efficiency ◽  
Acid Reduction

The analysis of total vitamin C content in food is most frequently performed by reducing dehydroascorbic acid to ascorbic acid, which is then assayed with the technique of high-performance liquid chromatography combined with spectrophotometric detection. Tris(2-carboxyethyl)phosphine is currently the only agent in use that efficiently reduces dehydroascorbic acid at pH < 2. Therefore, there is a continued need to search for new reducing agents that will display a high reactivity and stability in acidic solutions. The objective of the study was to verify the applicability of unithiol and tris(hydroxypropyl)phosphine for a reducing dehydroascorbic acid in an extraction medium with pH < 2. The conducted validation of the newly developed method of determining the total content of vitamin C using tris(hydroxypropyl)phosphine indicates its applicability for food analysis. The method allows obtaining equivalent results compared to the method based on the use of tris(2-carboxyethyl)phosphine. The low efficiency of dehydroascorbic acid reduction with the use of unithiol does not allow its application as a new reducing agent in vitamin C analysis.

scholarly journals Electroless deposition of Ni–P/Au coating on Cu substrate with improved corrosion resistance from Au(iii)–DMH based cyanide-free plating bath using hypophosphite as a reducing agent

RSC Advances ◽  
2021 ◽  
Vol 11 (62) ◽  
pp. 39153-39168
Author(s):  
Bo Wu ◽  
Baizhao Tan ◽  
Guizhen Tan ◽  
Ming Zeng ◽  
Jinyi Luo ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Electroless Deposition ◽  
Reducing Agent ◽  
Gold Plating ◽  
Plating Bath ◽  
Cu Substrate ◽  
Black Pad ◽  
Electroless Gold

In the Au(iii)–DMH based cyanide-free electroless gold plating bath, the added hypophosphite inhibited the black pad and improved the corrosion resistance of the Cu/Ni–P/Au coating.

Electroless deposition of CoBW coatings using morpholine borane as a reducing agent

2017 ◽  
Vol 636 ◽  
pp. 425-430 ◽  
Author(s):  
Z. Sukackienė ◽  
L. Tamašauskaitė-Tamašiūnaitė ◽  
V. Jasulaitienė ◽  
A. Balčiūnaitė ◽  
A. Naujokaitis ◽  
...  
Keyword(s):  
Electroless Deposition ◽  
Reducing Agent
Sign in / Sign up

Export Citation Format

Share Document