Talk:Cerium(IV) oxide

From WikiProjectMed
Jump to navigation Jump to search

Untitled

The statement that Ce2O3 is more stable than CeO2 is based on incorrect interpretation of the thermodynamic data. Yes, the standard enthalpy of formation of Ce2O3 is higher, but more Ce and O atoms are involved in the reaction as well. If you do the calculation correctly you will see that CeO2 is actually the more stable oxide. 131.211.44.116 (talk) 08:37, 18 September 2014 (UTC)[reply]


Assessment comment

The comment(s) below were originally left at Talk:Cerium(IV) oxide/Comments, and are posted here for posterity. Following several discussions in past years, these subpages are now deprecated. The comments may be irrelevant or outdated; if so, please feel free to remove this section.

Comment(s)Press [show] to view →
The canonical text on catalysis by ceria is "A. Trovarelli,, Ed.; Catalysis by Ceria and Related Materials; Imperial College

Press: 2002." I inserted what I have read in this book into the article, or at least the most important parts, regarding how the oxygen defects contribute to catalysis.


Hi, I'm new to contributing to Wikipedia. I wanted to identify myself as the author of reference #2 in this article, i.e. it is my Ph.D. dissertation. I don't believe my work supports the statement, "Powdered ceria is slightly hygroscopic and will also absorb a small amount of carbon dioxide from the atmosphere." The measurements I made on ceria were in atmospheres consisting of different ratios of CO2 and CO. I am certain that CO2 is absorbed on ceria (as one step in being reduced to CO) but I don't think my work indicates that CO2 would preferentially be absorbed over oxygen or other gas in a nominal air atmosphere. I am familiar with the Trovarelli reference mentioned above, but don't have access to a copy at this time to see if there is a stronger reference to support the aforementioned statement. Anyway, I would be willing to help the author in trying to find a work support this statement. Also, if the author is still interested in referencing my work, I can edit the article and provide a statement that it does support (i.e. in addition to use as a solid oxide cell electrolyte, ceria can also be used as a solid oxide electrode material because of its mixed ionic-electronic property. and my work indicates that as an electrode, it can electrocatalytically reduce CO2...there is also other references that it can be used as an anode to oxide hydrocarbons). Please note that I'm a bit uncomfortable editing the complete article as I do NOT have a good background in material science; I'm a chemical engineer with a background in solid state electrochemistry.

--Rdgreen60 (talk) 02:50, 25 October 2011 (UTC)[reply]

Last edited at 02:50, 25 October 2011 (UTC). Substituted at 11:10, 29 April 2016 (UTC)

External links modified

Hello fellow Wikipedians,

I have just modified 2 external links on Cerium(IV) oxide. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, please set the checked parameter below to true or failed to let others know (documentation at {{Sourcecheck}}).

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 17:01, 18 November 2016 (UTC)[reply]

Ceryllium

I ran across the term "ceryllium", associated with "ceryllium oxide" which was identified as CeO2. It appears to be a trade name for cerium oxide, but I couldn't confirm this. If anyone has anything on this, perhaps it should be mentioned here as a name. Dismalscholar (talk) 06:31, 12 April 2017 (UTC)[reply]

External links modified (January 2018)

Hello fellow Wikipedians,

I have just modified one external link on Cerium(IV) oxide. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:

When you have finished reviewing my changes, you may follow the instructions on the template below to fix any issues with the URLs.

This message was posted before February 2018. After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than regular verification using the archive tool instructions below. Editors have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the RfC before doing mass systematic removals. This message is updated dynamically through the template {{source check}} (last update: 18 January 2022).

  • If you have discovered URLs which were erroneously considered dead by the bot, you can report them with this tool.
  • If you found an error with any archives or the URLs themselves, you can fix them with this tool.

Cheers.—InternetArchiveBot (Report bug) 03:03, 24 January 2018 (UTC)[reply]

Is >30% covalent...

...but still is written with the oxidation number in parens. Am I missing something? Alfa-ketosav (talk) 16:23, 3 May 2018 (UTC)[reply]

With a melting point of 2400 °C, it certainly seems like a textbook predominantly ionic compound. Where do you get ">30% covalent" from? Double sharp (talk) 05:11, 5 May 2018 (UTC)[reply]

Report from Chemical Abstracts

In a search for "ceria" we get this information: 43437 references, of which 28269 have appeared since 2008 (about 7 publications/reports per day), of which 431 are reviews. So we really need to stick to WP:SECONDARY. --Smokefoot (talk) 23:02, 10 April 2019 (UTC)[reply]

Mineral name

One of the names of the related mineral, that appears in the "Glossary of chemical formulae", is wrong, as it goes "cerianite". There is no such mineral. The only correct name is: cerianite-(Ce). The more no other cerianites are known until now (and it is likely we never get known any other "cerianites").Eudialytos (talk) 12:37, 11 November 2020 (UTC)[reply]

Retrieved from "https://mdwiki.org/wiki/Talk:Cerium(IV)_oxide"