000			02306nam a2200241 a 4500
001			vtls000031332
003			KUKTEM
005			20251114204450.0
008			080829t2008 my a f m 000 0 eng|d
020			_aTHE0004705(Local)
039		9	_a201905131415 _bsmfh _c201107132042 _dVLOAD _c200908141515 _dVLOAD _c200908141445 _dVLOAD _y200808291540 _zida84
040			_aUMP
090			_aTP359.L5 W36 2008 rs Thesis
100	0		_aWan Johari Wan Hanapi
245	1	0	_aRoom temperature of liquified petroleum gas (LPG) sensor based on p-La2O3/n-Fe2O3 / _cWan Johari Wan Hanapi
246	3		_aRoom temperature of liquified petroleum gas (LPG) sensor based on p-La2O3/n-Fe2O3 _h[electronic resource]
260			_aKuantan, Pahang : _bUMP, _c2008
300			_a47 p. : _bill. ; _c30 cm. + _e1 computer disc
502			_aProject paper (Bachelor of Chemical Engineering) --- Universiti Malaysia Pahang - 2008
520	3		_aRecently, owing to environment and safety aspect, interest in utilization of gas sensor is increasing. Gas sensor is used to detect hazardous gas in order to avoid it from spread to the environment. Lanthanum oxide and iron (III) oxide was chosen because of their availability and cost effective. Performance of using lanthanum oxide and iron (III) oxide as sensing element were investigated. Detection of liquefied petroleum gas in this research reported has a very long response time due to the chemical properties of lanthanum oxide. The p-La2O3/n-Fe2O3 sensor has detected the LPG 20 minutes after start flowing the gas inside the modified plastic bottle. This paper also describe the study on thermal stability of each substrate has been done using Thermogravimetric Analysis (TGA). Thermogravimetric Analysis is a type of testing that is performed on samples to determine changes in weight in relation to change in temperature. Such analysis relies on a high degree of precision in three measurements: weight, temperature, and temperature change. Lanthanum oxide shows that at 8000C their original form will be transform into another phase of oxide such as LaO and LaO2. Iron (III) oxide still remains their original form to the end of the sintered. -Author
650		0	_aLiquefied petroleum gas
999			_aVIRTUA40 _c2508 _d2514
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*9992