DOI QR코드

DOI QR Code

다공성 탄소전극상 무전해 니켈도금의 산성과 알칼리용액 비교 연구

천소영;강인석;임영목;김두현;이재호
Chun, So-Young;Kang, In-Seok;Rhym, Young-Mok;Kim, Doo-Hyun;Lee, Jae-Ho

  • 투고 : 2010.04.12
  • 심사 : 2010.04.26
  • 발행 : 2010.04.30

초록

Electroless nickel plating on porous carbon substrate for the application of MCFC electrodes was investigated. Acidic and alkaline bath were used for the electroless nickel plating. The pore sizes of carbon substrates were 16-20 ${\mu}m$ and over 20 ${\mu}m$. The carbon surface was changed from hydrophobic to hydrophilic after immersing the substrate in an ammonia solution for 40 min at $60^{\circ}C$. The contact angle of water was decreased from $85^{\circ}C$ to less than $20^{\circ}$ after ammonia pretreatment. The deposition rate in the alkaline bath was higher than that in the acidic bath. The deposition rate was increased with increasing pH in both acidic and alkaline bath. The content of phosphorous in nickel deposit was decreased with increasing pH in both acidic and alkaline bath. The contents of phosphorous is low in alkaline bath. The minimum concentration of $PdCl_2$ for the electroless nickel plating was 10 ppm in alkaline bath and 5 ppm in acidic bath. The thickness of nickel was not affected by the concentration of $PdCl_2$.

키워드

Electroless nickel plating;Porous carbon;Palladium chloride

참고문헌

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피인용 문헌

  1. Effects of Heat Treatment Conditions on the Interfacial Reactions and Crack Propagation Behaviors in Electroless Ni/electroplated Cr Coatings vol.23, pp.3, 2016, https://doi.org/10.5695/JKISE.2010.43.2.105

과제정보

연구 과제 주관 기관 : 지식경제부