Optimizing Hydrogen Combustion Catalysts for Efficient Stove Design

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SUMMARY

This discussion focuses on optimizing hydrogen combustion catalysts for efficient stove design, specifically highlighting the use of nickel over platinum. The catalytic performance of Cu-doped SnO2 catalysts was noted, achieving a T50% of 250 °C at a gas hourly space velocity (GHSV) of 42310 h–1. Additionally, the performance of Pd- and Pt-substituted ZrO2 and TiO2 catalysts was examined, with T50% values of 70 °C and 95 °C for ZrO2 and significantly lower temperatures of 37 °C and 35 °C for TiO2. Proper burner configuration is crucial due to the rapid movement of the flame front, necessitating a high flow speed of hydrogen.

PREREQUISITES
  • Understanding of catalytic materials, specifically nickel and platinum.
  • Familiarity with gas hourly space velocity (GHSV) and its significance in combustion.
  • Knowledge of combustion temperatures and their implications for stove design.
  • Basic principles of burner configuration and flame dynamics.
NEXT STEPS
  • Research the catalytic properties of nickel versus platinum for hydrogen combustion.
  • Study the combustion characteristics of Cu-doped SnO2 catalysts in detail.
  • Investigate the effects of burner configuration on flame stability and efficiency.
  • Explore the latest advancements in hydrogen combustion technology and materials.
USEFUL FOR

This discussion is beneficial for engineers, researchers, and hobbyists interested in developing efficient hydrogen stoves, as well as those focused on advancements in catalytic combustion technology.

seandepagnier
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I am interested in build a hydrogen stove for cooking and wish to use a catalytic stove. I cannot find much information about this anywhere, but only that nickel can be used for hydrogen rather than platinum.

1) Can I just use stainless scotch brite scrub pad as catalyst assuming it contains nickel? Or stainless steel wool?
2) Where can I find information about the combustion temperatures of hydrogen with various catalysts including platinum?
 
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Here is one article with much lower temperatures than a stove:
https://pubs.acs.org/doi/10.1021/acsami.6b08019
(found with: https://www.google.com/search?&q=hydrogen+flame+catalyst)

The catalytic hydrogen combustion on Cu doped SnO2 catalysts was studied and the T50% was found to be 250 °C at a GHSV of 42310 h–1.(34) Hydrogen combustion with both reducible (TiO2) and nonreducible (ZrO2) supports has been studied with Pt and Pd substituted supports at a GHSV of 20000 h–1 and 2:1 ratio of H2:O2. T50% were obtained at 70 and 95 °C with Pd- and Pt-substituted ZrO2 catalysts, whereas Pt and Pd substituted reducible support TiO2 showed much higher activity by reducing temperatures to 37 and 35 °C.

Also pay attention to your burner configuration, the flame front moves rather quickly, generally requiring a high flow speed of the Hydrogen.

Cheers,
Tom
 

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