PMID- 27626404
OWN - NLM
STAT- MEDLINE
DCOM- 20170417
LR  - 20200225
IS  - 1420-3049 (Electronic)
IS  - 1420-3049 (Linking)
VI  - 21
IP  - 9
DP  - 2016 Sep 12
TI  - Spectroelectrochemical Study of Carbon Monoxide and Ethanol Oxidation on Pt/C, 
      PtSn(3:1)/C and PtSn(1:1)/C Catalysts.
LID - 10.3390/molecules21091225 [doi]
LID - 1225
AB  - PtSn-based catalysts are one of the most active materials toward that contribute 
      ethanol oxidation reaction (EOR). In order to gain a better understanding of the 
      Sn influence on the carbon monoxide (principal catalyst poison) and ethanol 
      oxidation reactions in acidic media, a systematic spectroelectrochemical study 
      was carried out. With this end, carbon-supported PtSnx (x = 0, 1/3 and 1) 
      materials were synthesized and employed as anodic catalysts for both reactions. 
      In situ Fourier transform infrared spectroscopy (FTIRS) and differential 
      electrochemical mass spectrometry (DEMS) indicate that Sn diminishes the amount 
      of bridge bonded CO (COB) and greatly improves the CO tolerance of Pt-based 
      catalysts. Regarding the effect of Sn loading on the EOR, it enhances the 
      catalytic activity and decreases the onset potential. FTIRS and DEMS analysis 
      indicate that the C-C bond scission occurs at low overpotentials and at the same 
      potential values regardless of the Sn loading, although the amount of C-C bond 
      breaking decreases with the rise of Sn in the catalytic material. Therefore, the 
      elevated catalytic activity toward the EOR at PtSn-based electrodes is mainly 
      associated with the improved CO tolerance and the incomplete oxidation of ethanol 
      to form acetic acid and acetaldehyde species, causing the formation of a higher 
      amount of both C2 products with the rise of Sn loading.
FAU - Rizo, Ruben
AU  - Rizo R
AD  - Departamento de Quimica, Instituto de Materiales y Nanotecnologia, Universidad de 
      La Laguna, Avda. Astrofisico Francisco Sanchez s/n, La Laguna 38071, Santa Cruz 
      de Tenerife, Spain. rjrizo57@gmail.com.
FAU - Lazaro, Maria Jesus
AU  - Lazaro MJ
AD  - Instituto de Carboquimica (CSIC) Miguel Luesma Castan 4, Zaragoza 50018, Spain. 
      mlazaro@icb.csic.es.
FAU - Pastor, Elena
AU  - Pastor E
AD  - Departamento de Quimica, Instituto de Materiales y Nanotecnologia, Universidad de 
      La Laguna, Avda. Astrofisico Francisco Sanchez s/n, La Laguna 38071, Santa Cruz 
      de Tenerife, Spain. epastor@ull.edu.es.
FAU - Garcia, Gonzalo
AU  - Garcia G
AD  - Departamento de Quimica, Instituto de Materiales y Nanotecnologia, Universidad de 
      La Laguna, Avda. Astrofisico Francisco Sanchez s/n, La Laguna 38071, Santa Cruz 
      de Tenerife, Spain. ggarcia@ull.edu.es.
LA  - eng
PT  - Journal Article
DEP - 20160912
PL  - Switzerland
TA  - Molecules
JT  - Molecules (Basel, Switzerland)
JID - 100964009
RN  - 3K9958V90M (Ethanol)
RN  - 49DFR088MY (Platinum)
RN  - 7440-31-5 (Tin)
RN  - 7U1EE4V452 (Carbon Monoxide)
SB  - IM
MH  - Carbon Monoxide/*chemistry
MH  - Catalysis
MH  - Electrochemical Techniques
MH  - Ethanol/*chemistry
MH  - Oxidation-Reduction
MH  - Platinum/*chemistry
MH  - Tin/*chemistry
PMC - PMC6273622
OTO - NOTNLM
OT  - DEMS
OT  - FTIRS
OT  - Pt-Sn electrocatalysts
OT  - direct ethanol fuel cell
OT  - ethanol electrooxidation
COIS- The authors declare no conflict of interest.
EDAT- 2016/09/15 06:00
MHDA- 2017/04/18 06:00
PMCR- 2016/09/12
CRDT- 2016/09/15 06:00
PHST- 2016/07/17 00:00 [received]
PHST- 2016/08/30 00:00 [revised]
PHST- 2016/09/07 00:00 [accepted]
PHST- 2016/09/15 06:00 [entrez]
PHST- 2016/09/15 06:00 [pubmed]
PHST- 2017/04/18 06:00 [medline]
PHST- 2016/09/12 00:00 [pmc-release]
AID - molecules21091225 [pii]
AID - molecules-21-01225 [pii]
AID - 10.3390/molecules21091225 [doi]
PST - epublish
SO  - Molecules. 2016 Sep 12;21(9):1225. doi: 10.3390/molecules21091225.