caa a22 4500 469056622 CHVBK 20180323132845.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1163/156856792X00155 doi (NATIONALLICENCE)springer-10.1163/156856792X00155 Study on the method of chemical trapping for formyl intermediates [Elektronische Daten] [H. Wang, J. Liu, J. Fu, H. Zhang, K. Tsai] The method of chemical trapping for formyl intermediates has been studied, with syngas conversion to ethanol over rhodium-based catalysts as the diagnostic reaction concerned, and CH3I as the trapping reagent. Two species of acetaldehyde, i.e., CH3CHO and CH3CDO, were produced in the trapping reaction following CO + 2D2 reaction. It was shown that the formation of CH3CHO in the trapping reaction resulted from dehydrogenation of CH3 from CH3I to give H, which induced the formation of CH3CHO in the presence of CO and CH3 So there may be two pathways for the formation of CH3CDO in the trapping reaction: one, methylation of DCO adspecies; the other, deuteration of CH3 CO formed by CO insertion into CH3 The catalyst surface was purged with Ar following CO + 2D2 reaction before the trapping reaction was performed. By means of this modified method of chemical trapping for formyl intermediates, CH3CDO was found to be mainly derived from the methylation of DCO adspecies. Accordingly, it could be concluded that formyl is a C1 intermediate in the syngas conversion to ethanol over rhodium-based catalysts. Springer, 1992 Wang H. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut Liu J. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut Fu J. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut Zhang H. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut Tsai K. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut Research on Chemical Intermediates Springer Netherlands 17/3(1992-09-01), 233-242 0922-6168 17:3<233 1992 17 11164 https://doi.org/10.1163/156856792X00155 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1163/156856792X00155 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wang H. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Liu J. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Fu J. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Zhang H. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 700 1- Tsai K. The State Key Laboratory for Physical Chemistry of the Solid Surface Department of Chemistry, Xiamen University, 361005, Xiamen, China aut NATIONALLICENCE 773 0- Research on Chemical Intermediates Springer Netherlands 17/3(1992-09-01), 233-242 0922-6168 17:3<233 1992 17 11164 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer