2 research outputs found
Catalytic Activity Studies of Modified Alumina in the Esterification of Benzyl Alcohol with Different Aliphatic Acids
244-252<span style="font-size:11.0pt;font-family:
" times="" new="" roman";mso-fareast-font-family:"times="" roman";mso-bidi-font-family:="" mangal;mso-ansi-language:en-gb;mso-fareast-language:en-us;mso-bidi-language:="" hi"="" lang="EN-GB">A varied percentage of Fe, Co and Fe-Co mixtures were deposited on alumina
support by dry impregnation method. The prepared materials were analyzed for
their crystallinity, surface functional groups, morphology and elemental
composition by P-XRD, FT-IR, and SEM-EDS techniques. Specific surface area of
the catalytic materials was determined by BET technique using nitrogen as
adsorbent. Further, surface acidity was estimated by TPD-NH3 and n- butylamine back titration method. The
catalytic performances of these materials were checked in the esterification of
benzyl alcohol with various aliphatic acids. The catalytic activity of Fe-Co/Al2O3
with 15% metal loading was found to be superior to other catalysts. The higher
catalytic performance of the catalyst may be attributed to the higher surface
acidity as well as synergetic effect of the metals. Further, the catalyst
Fe-Co/Al2O3 (15%) was recyclable up to 5 times with
negligible loss of its catalytic activity. A close relationship was noticed
between surface acidity and catalytic performance of the materials.</span