CATALYTIC GAS PLATING WITH NICKEL CARBONYL
Exploratory studies were made to determine the value of four potential catalysts in increasing the gas plating rate for nickel carbonyl. The catalysts studied were anhydrous ammonia, water vapor, oxygen, and hydrogen sulfide. No catalytic effect was observed for either ammonla alone or for water vapor alone. Oxygen was not tested alone. With hydrogen sulfide present in the 0.2 to 0.4% concentration range, significant improvement in plating rate was observed. The best results were obtained with mixtures of hydrogen sulfide and water vapor or mixtures of hydrogen sulfide and oxygen, using hydrogen sulfide concentrations of 0.2 to 0.8%, water vapor concentrations of 0.03 to 0.08%, and oxygen concentrations of 0.8 to 1.0%. The catalytic effect can also be used to reduce the temperature required s plating with nickel carbonyl. Using the hydrogen sulfide-oxygen mixture, nickel carbonyl gas plating was performed at room temperature on the following materials: iron, copper, aluminum, glass, paper, cardboard, cotton cloth, and cork. (auth)
- Research Organization:
- Oak Ridge Gaseous Diffusion Plant, Tenn.
- DOE Contract Number:
- W-7405-ENG-26
- NSA Number:
- NSA-17-002942
- OSTI ID:
- 4766952
- Report Number(s):
- K-1533
- Country of Publication:
- United States
- Language:
- English
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