Abstract
Narrowly sized colloidal Au particles of varying average sizes (3–30 nm) were immobilized on an inert support (SiO2) to study the Au size effect on the aerobic oxidation of ethanol in aqueous solution. Au particles with an average diameter of 5 nm showed an areal activity that was about three times that of the smaller (3 nm), and 15 times that of larger (10–30 nm) Au particles. Investigation on the dependence of product yields on ethanol conversion over these differently sized Au particles clearly uncovered that the yield of acetic acid increased always with the ethanol conversion, while that of acetaldehyde passed a maximum at an ethanol conversion of 20–30%, therefore well demonstrating that acetaldehyde is the intermediate product in the oxidation of ethanol to acetic acid.
Similar content being viewed by others
References
Bond GC, Thompson DT (1999) Catal Rev Sci Eng 41:319
Hashmi ASK, Hutchings GJ (2006) Angew Chem Int Ed 45:7896
Haruta M (2002) Cattech 6:102
Claus P (2005) Appl Catal A 291:222
Zhang X, Shi H, Xu B-Q (2005) Angew Chem Int Ed 44:7132
Shi H, Xu N, Zhao D, Xu B-Q (2008) Catal Commun. doi:10.1016/j.catcom.2008.03.025
Mallat T, Baiker A (2004) Chem Rev 104:3037
Prati L, Rossi M (1998) J Catal 176:552
Billa S, Prati L, Rossi M (2002) J Catal 206:242
Carrettin S, Mcmorn P, Johnston P, Griffin K, Hutchings GJ (2002) Chem Commun 696
Abad A, Concepción P, Corma A, García H (2005) Angew Chem Int Ed 44:4066
Hutchings GJ (2006) Science 311:362
Dimitratos N, Villa A, Bianchi CL, Prati A, Makkee M (2006) Appl Catal A 311:185
Christensen CH, Jørgensen B, Rass-Hansen J, Egeblad K, Madsen R, Klitgaard SK, Hansen SM, Hansen MR, Andersen HC, Riisager A (2006) Angew Chem Int Ed 45:4648
Jørgensen B, Christiansen SE, Thomsen MLD, Christensen CH (2007) J Catal 251:332
Haider P, Baiker A (2007) J Catal 248:175
Bianchi CL, Porta F, Prati L, Rossi M (2000) Top Catal 13:231
Tsunoyama H, Sakurai H, Tsukuda T (2006) Chem Phys Lett 429:528
Onal Y, Schimpf S, Claus P (2004) J Catal 223:122
Comotti M, Pina CD, Matarrese R, Rossi M (2004) Angew Chem Int Ed 43:5812
Demirel S, Lehnert K, Lucas M, Claus P (2007) Appl Catal B 31:637
Porta F, Prati L, Rossi M, Coluccia S, Martra G (2000) Catal Today 61:165
Zhao D, Xu B-Q (2006) Angew Chem Int Ed 45:4955
Enustun BV, Turkevich J (1963) J Am Chem Soc 85:3318
Montejano-Carrizales JM, Aguilera-Granja F, Morán-López JL (1997) Nanostructured Mater 8:269
Overbury SH, Schwartz V, Mullins AR, Yan W, Dai S (2006) J Catal 241:56
Lopez N, Janssens TVW, Clausen BS, Xu Y, Mavrikakis M, Bligaard T, Norskov JK (2004) J Catal 223:232
Claus P, Bruckner A, Mohr C, Hofmeister H (2000) J Am Chem Soc 122:11430
Miller JT, Kropf AJ, Zha Y, Regalnuto JR, Delannoy L, Louis C, Bus E, Van Bokhoven JA (2006) J Catal 240:222
Cleveland CL, Landman U, Schaaf TG, Shafigullin MN (1997) Phys Rev Lett 79:1873
Jacobs PW, Somorjai GA (1998) J Mol Catal A 131:5
Jacobsen CJH, Dahl S, Hansen PL, Törnqvist E, Jensen L, Topsøe H, Prip DV, Møenshaug PB, Chorkendorff I (2000) J Mol Catal A 163:19
Acknowledgements
We thank NSF (Grant No. 20573062) and National Basic Research Project of China (Grant No. 2003CB615804) for financial support of this work.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Sun, KQ., Luo, SW., Xu, N. et al. Gold Nano-size Effect in Au/SiO2 for Selective Ethanol Oxidation in Aqueous Solution. Catal Lett 124, 238–242 (2008). https://doi.org/10.1007/s10562-008-9507-4
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10562-008-9507-4