Development of a Pt/stainless steel mesh catalyst and its application in catalytic hydrogen combustion
| Autor: | Charles W. Dunnill, C. Mota das Neves Quaresma, Daniel R. Jones, Dmitri Bessarabov, Anzel Falch, S.P. du Preez |
|---|---|
| Přispěvatelé: | 21220212 - Du Preez, Stephanus Petrus, 22730389 - Bessarabov, Dmitri Georgievich, 20286317 - Falch, Anzel |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Oxide Energy Engineering and Power Technology chemistry.chemical_element Sintering 02 engineering and technology Thermal treatment 010402 general chemistry 01 natural sciences law.invention Catalysis Stainless steel chemistry.chemical_compound Aggregation law Calcination Platinum Renewable Energy Sustainability and the Environment Hydrogen combustion Catalytic hydrogen combustion fungi technology industry and agriculture 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Fuel Technology chemistry Chemical engineering 0210 nano-technology Layer (electronics) |
| Popis: | In this paper, different methods to prepare a Pt/stainless steel mesh catalyst for catalytic hydrogen combustion are reported. Pt was deposited as a thin layer onto stainless steel mesh as a support matrix. Thermal treatment resulted in the formation of uniformly distributed near nano-sized Pt particles on the support's surface. The catalysts were evaluated for catalytic hydrogen combustion, and temperatures of between 420 and 520 °C were achieved and maintained at hydrogen flow rates of 0.2–0.4 Nl/min. SEM and EDX results indicate that stainless steel support calcination promoted the formation of a native oxide layer. This oxide layer stabilized Pt particles during hydrogen combustion procedures, effectively preventing significant Pt aggregation from occurring. It was also found that the Ni content of stainless steel promoted the catalytic hydrogen combustion reaction. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|