Electrocatalytic CO2 Reduction via a Permeable CNT Hollow-Fiber Electrode Incorporated with SnO2 Nanoparticles

Cited 2 time in webofscience Cited 0 time in scopus
  • Hit : 293
  • Download : 0
Herein, we introduce a permeable carbon nanotube hollow-fiber electrode incorporated with SnO2 nanoparticles (SnO2–CHE) and propose a new type of gas-phase operational mode. Highly efficient electrochemical syngas production from CO2 is made possible by switching the operating mode from liquid phase to gas phase. The operation of SnO2–CHE in the conventional liquid-phase mode yielded a H2/CO ratio higher than 4.59, and the maximum jCO was only 2.16 mA/cm2 at −0.88 V (vs RHE) due to the low solubility and limited mass transfer of CO2 in liquid electrolytes. On the other hand, SnO2–CHE operated under the newly designed gas-phase mode achieved a H2/CO ratio ranging from 1.22 to 4.11 with a maximum jCO of 7.42 mA/cm2 at −0.76 V (vs RHE), which is proper for direct post-conversion processes. Therefore, this work could offer a new avenue for electrochemical syngas production using a nonprecious metal-based hollow-fiber type electrode, which allows for a large electrode surface area and high CO2 availability in gas-phase operation.
Publisher
AMER CHEMICAL SOC
Issue Date
2020-02
Language
English
Article Type
Article
Citation

ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v.8, no.5, pp.2117 - 2121

ISSN
2168-0485
DOI
10.1021/acssuschemeng.9b05701
URI
http://hdl.handle.net/10203/272395
Appears in Collection
CE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 2 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0