Definitions for platinum black
plat·inum black

Princeton's WordNetRate this definition:0.0 / 0 votes

1. platinum blacknoun

   a fine black powder of platinum; used as a catalyst in chemical reactions

WikipediaRate this definition:0.0 / 0 votes

1. Platinum black

   Platinum black (Pt black) is a fine powder of platinum with good catalytic properties. The name of platinum black is due to its black color. It is used in many ways; as a thin film electrode, a fuel cell membrane catalyst, or as a catalytic ignition of flammable gases for "self-lighting' gas lamps, ovens, and stove burners.

ChatGPTRate this definition:0.0 / 0 votes

1. platinum black

   Platinum black is a fine powder of platinum with good catalytic properties. It is used in catalysis, gas detection, fuel cells and other applications. The term "black" refers to its dark, powdery appearance. It has a much greater surface area compared to platinum in bulk, making it highly desired for various chemical processes.

WikidataRate this definition:0.0 / 0 votes

1. Platinum black

   Platinum black is a fine powder of platinum with good catalytic properties. The name of platinum black is due to its black color. Platinum black is widely used as a thin film covering solid platinum metal, forming platinum electrodes for applications in electrochemistry. The process of covering platinum electrodes with such a layer of platinum black is called "platinization of platinum". The platinized platinum has a true surface area much higher than the geometrical surface area of the electrode and, therefore, exhibits catalytic action superior to that of shiny platinum. Platinum black powder is used as a catalyst in proton exchange membrane fuel cells. In common practice, the platinum black is either sprayed or hot pressed onto the membrane or gas diffusion layer. A suspension of platinum black and carbon powder in ethanol-water solutions serves to optimize the uniformity of the coating, electrical conductivity, and in the case of application to the membrane, to prevent dehydration of the membrane during the application.

The Standard Electrical DictionaryRate this definition:0.0 / 0 votes

1. Platinum Black

   Finely divided platinum. It is made by boiling a solution of platinic chloride with excess of sodium carbonate and a quantity of sugar, until the precipitate is perfectly black and the supernatant liquid is colorless. It seems to possess a great power of occluding oxygen gas. When heated to redness it becomes spongy platinum. The negative plates of a Smee battery are coated with platinum black.

Matched Categories

1. • Catalyst

How to pronounce platinum black?

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Numerology

1. Chaldean Numerology

   The numerical value of platinum black in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of platinum black in Pythagorean Numerology is: 9

References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=platinum black
2. ^ Wikipedia
   https://en.wikipedia.org/wiki/Platinum_Black
3. ^ ChatGPT
   https://chat.openai.com
4. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=platinum black
5. ^ The Standard Electrical Dictionary
   https://www.gutenberg.org/cache/epub/26535/pg26535-images.html#:~:text=platinum black