Effect of bath pH on Nickel Citrate electroplating bath

Doi, Tadashi; Mizumoto, Kazunari; Tanaka, Shin‐ichi; Yamashita, Tsugito

doi:10.1016/s0026-0576(04)82610-2

Cited by 19 publications

(10 citation statements)

References 5 publications

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“…Bidistilled water and analytical regents were used. Acetate/acetic acid buffer solution was used for adjusting the pH of the solution because the most stable citrate complexes with transition metals are formed under this condition [28,29], while in the case of Na2H2EDTA, H2EDTA is the predominant specie [30], forming very stable complexes.…”

Section: Methodsmentioning

confidence: 99%

Influence of complexing agents on the preparation of bimetallic platinum–ruthenium catalysts supported on O-functionalized graphite cloths

Sieben

Duarte

Mayer

2010

Journal of Alloys and Compounds

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Section: Methodsmentioning

confidence: 99%

Influence of complexing agents on the preparation of bimetallic platinum–ruthenium catalysts supported on O-functionalized graphite cloths

Sieben

Duarte

Mayer

2010

Journal of Alloys and Compounds

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“…Although many plated Fe-Ni films with good soft magnetic properties have been reported, the efficiency are relatively low (60-70%) 11,12 compared to that for plated Ni films (>95%). 13 Recently, we have reported the Fe-Ni films with good soft magnetic properties prepared in a citric-acid-based plating bath. [14][15][16] The efficiency for our process was also low (65%) and we need to improve the efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…The citric acid forms complex with nickel ions and affects the efficiency and the properties of the films. 13 In order to improve the efficiency of the electroplating process, we plated the Fe-Ni films in plating baths with various citric acid contents, and evaluated the effect of the citric acid content on the magnetic properties and the current efficiency.…”

Section: Introductionmentioning

confidence: 99%

Improvement in current efficiency of electroplated Fe-Ni films prepared in citric-acid-based baths

Watanabe

Yanai

Otsubo

et al. 2015

Journal of Applied Physics

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Fe-Ni films were electroplated in a citric-acid-based plating bath, focusing on the current efficiency of the plating process. We prepared the plating baths with various citric acid contents, and evaluated the magnetic properties of the films and the current efficiency. The film with Fe content of approximately 22 at. % was obtained by adjusting the iron sulfate content in the plating bath, and we found that the Fe-Ni films with low coercivity (<30 A/m) could be obtained in the baths with various citric acid contents. For the current efficiency, we found that the baths with low citric acid content are effective to obtain high efficiency. The bath with the citric acid content of 10 g/l showed high current efficiency (85%), and the high efficiency enables us to increase the plating rate. The maximum plating rate was 186 lm/h, and we obtained 1.3 times higher rate compared to that for our previous study. Therefore, we concluded that the bath with low citric acid content is a suitable plating bath to obtain thick Fe-Ni films in a short time. V C 2015 AIP Publishing LLC.

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“…Doi et. al. reported that a plating bath containing citric acid is effective in obtaining fine crystalline Ni films free of texture effects by plating [5,6]. It is well known that fine crystal structures are effective in realizing good soft magnetic properties due to the exchange softening effect [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Soft Magnetic Properties of Electrodeposited Fe-Ni Films Prepared in Citric Acid Based Bath

et al. 2012

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Electrodeposited Fe-Ni films are widely used in device applications. However, there is a growing awareness of the toxicity of the plating bath containing boric acid. In order to avoid boric acid in the deposition process, we have employed a citric acid based bath for electrodeposition of Fe-Ni films and investigated the effect of the acid content in the bath on the structural and magnetic properties of the deposited films. It is found that the Fe content of the film depends largely on the acid concentration and low coercivity values of less than 30 A/m are realized when the Fe content of the film is around 22 at.%. This magnetic softness is attainable in a wide film thickness range between 20 and 120 µm. Our process exhibits a relatively high cathode efficiency of above 55 %. Furthermore, a high deposition rate of 170 µm/h is obtained without sacrificing the magnetic softness of the film by increasing the current density during the deposition. From these results, we conclude that the citric acid based bath is an environmentally friendlier plating bath ideal for mass-production of magnetically soft Fe-Ni films.

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Effect of bath pH on Nickel Citrate electroplating bath

Cited by 19 publications

References 5 publications

Influence of complexing agents on the preparation of bimetallic platinum–ruthenium catalysts supported on O-functionalized graphite cloths

Influence of complexing agents on the preparation of bimetallic platinum–ruthenium catalysts supported on O-functionalized graphite cloths

Improvement in current efficiency of electroplated Fe-Ni films prepared in citric-acid-based baths

Soft Magnetic Properties of Electrodeposited Fe-Ni Films Prepared in Citric Acid Based Bath

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