Growth mechanism and formaldehyde sensing of mixed phase cobalt oxide nanowalls
Sushil Barala, Sri Aurobindo Panda, Arnab Hazra, Subhashis Gangopadhyay · 2025
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Description
Sushil Barala and co-authors make cobalt oxide nanowalls in 2025 and test them as sensors for formaldehyde vapor. The shape and chemical mix of metal oxide surfaces shape how well they sense gas and drive reactions. Their films began as pure cobalt laid on glass, then heated in air to set temperatures.
At lower heat, one oxide phase held a thin, porous wall like form. At higher heat, a second phase took over and the form turned to even grains. Careful analysis showed walls with a core of the first phase and a shell of the second. Those mixed walls sensed formaldehyde far more strongly than the grain films and picked it out well against other vapors, even at low levels. The work links growth control to sensor performance for a harmful indoor gas.
Catalog record
| CREATOR | Sushil Barala, Sri Aurobindo Panda, Arnab Hazra, Subhashis Gangopadhyay |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 66 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |