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Title: CO 2 reduction to acetate in mixtures of ultrasmall (Cu) n ,(Ag) m bimetallic nanoparticles

Abstract

Monodispersed mixtures of 6-nm Cu and Ag nanoparticles were prepared by electrochemical reduction on electrochemically polymerized poly -Fe(vbpy) 3 (PF 6 ) 2 film electrodes on glassy carbon. Conversion of the complex to poly -Fe(vbpy) 2 (CN) 2 followed by surface binding of salts of the cations and electrochemical reduction gave a mixture of chemically distinct clusters on the surface, (Cu) m ,(Ag) n |polymer|glassy carbon electrode (GCE), as shown by X-ray photoelectron spectroscopy (XPS) measurements. A (Cu) 2 ,(Ag) 3 |(80-monolayer- poly -Fe(vbpy) 3 2+ |GCE electrode at −1.33 V vs. reversible hydrogen electrode (RHE) in 0.5 M KHCO 3 , with 8 ppm added benzotriazole (BTA) at 0 °C, gave acetate with a faradaic efficiency of 21.2%.

Authors:
 [1];  [1]; ORCiD logo [2];  [1];  [1];  [1]
  1. Univ. of North Carolina, Chapel Hill, NC (United States). Dept. of Chemistry
  2. Florida International Univ., Miami, FL (United States). Dept. of Chemistry and Biochemistry
Publication Date:
Research Org.:
Energy Frontier Research Centers (EFRC) (United States). Center for Solar Fuels (UNC EFRC)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1414879
Alternate Identifier(s):
OSTI ID: 1470063
Grant/Contract Number:  
SC0001011
Resource Type:
Published Article
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 115; Journal Issue: 2; Related Information: UNC partners with University of North Carolina (lead); Duke University; University of Florida; Georgia Institute of Technology; University; North Carolina Central University; Research Triangle Institute; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; catalysis (homogeneous); catalysis (heterogeneous); solar (photovoltaic); solar (fuels); photosynthesis (natural and artificial); hydrogen and fuel cells, electrodes - solar; charge transport; materials and chemistry by design; synthesis (novel materials); synthesis (self-assembly); CO2 reduction; electrocatalysis; electrodeposition; bimetallic nanoparticles; artificial photosynthesis

Citation Formats

Wang, Ying, Wang, Degao, Dares, Christopher J., Marquard, Seth L., Sheridan, Matthew V., and Meyer, Thomas J. CO2 reduction to acetate in mixtures of ultrasmall (Cu)n ,(Ag)m bimetallic nanoparticles. United States: N. p., 2017. Web. doi:10.1073/pnas.1713962115.
Wang, Ying, Wang, Degao, Dares, Christopher J., Marquard, Seth L., Sheridan, Matthew V., & Meyer, Thomas J. CO2 reduction to acetate in mixtures of ultrasmall (Cu)n ,(Ag)m bimetallic nanoparticles. United States. doi:10.1073/pnas.1713962115.
Wang, Ying, Wang, Degao, Dares, Christopher J., Marquard, Seth L., Sheridan, Matthew V., and Meyer, Thomas J. Tue . "CO2 reduction to acetate in mixtures of ultrasmall (Cu)n ,(Ag)m bimetallic nanoparticles". United States. doi:10.1073/pnas.1713962115.
@article{osti_1414879,
title = {CO2 reduction to acetate in mixtures of ultrasmall (Cu)n ,(Ag)m bimetallic nanoparticles},
author = {Wang, Ying and Wang, Degao and Dares, Christopher J. and Marquard, Seth L. and Sheridan, Matthew V. and Meyer, Thomas J.},
abstractNote = {Monodispersed mixtures of 6-nm Cu and Ag nanoparticles were prepared by electrochemical reduction on electrochemically polymerized poly -Fe(vbpy) 3 (PF 6 ) 2 film electrodes on glassy carbon. Conversion of the complex to poly -Fe(vbpy) 2 (CN) 2 followed by surface binding of salts of the cations and electrochemical reduction gave a mixture of chemically distinct clusters on the surface, (Cu) m ,(Ag) n |polymer|glassy carbon electrode (GCE), as shown by X-ray photoelectron spectroscopy (XPS) measurements. A (Cu) 2 ,(Ag) 3 |(80-monolayer- poly -Fe(vbpy) 3 2+ |GCE electrode at −1.33 V vs. reversible hydrogen electrode (RHE) in 0.5 M KHCO 3 , with 8 ppm added benzotriazole (BTA) at 0 °C, gave acetate with a faradaic efficiency of 21.2%.},
doi = {10.1073/pnas.1713962115},
journal = {Proceedings of the National Academy of Sciences of the United States of America},
number = 2,
volume = 115,
place = {United States},
year = {2017},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1073/pnas.1713962115

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Cited by: 6 works
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