Journal
JOURNAL OF CO2 UTILIZATION
Volume 20, Issue -, Pages 27-33Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2017.05.002
Keywords
CO2 reduction; CuO nanowires; Electrocatalysis; Energy conversion
Funding
- National Natural Science foundation of China [21566025]
- Natural Science Foundation of Jiangxi Province [20152ACB21019]
- Graduate Student Innovation Foundation of Nanchang Hangkong University [YC2015017]
Ask authors/readers for more resources
The daunting challenge in electrochemical conversion of CO2 into carbon resource is to explore high-activity and high-selectivity electrocatalysts for CO2 reduction reaction (CO2RR). Here, we report a water-bath route for tunable synthesis of a set of CuO nanostructures including nanowires (NWs), microsphere and nanoflake. The CuO NWs show a unique one-dimensional (1D) structure constructed by nanoparticles building block and manifest a significantly enhanced electrochemical surface area compared with the counterparts and the bulk CuO. Systematic electrochemical studies demonstrate the CuO NWs, as electrocatalyst of CO2RR, manifests a highly electrocatalytic activity, as demonstrated by reaching a current dentistry of 2 mA cm(-2) at a relative low onset potential and delivering a catalytic current density of up to 100 mA cm(-2) at -1.6 V. The nanoparticles assembled 1D structure provides a large amount of edge active sites and thus contributes to such a high electrocatalytic activity. Besides a small quantity of HCOOH, the major products of CO2RR are H-2, CO, with tunable ratio of H-2/CO in the range of 1.75: 1 to 2.75: 1 depending on the applied potential; such H-2/CO mixture product are potentially used for the syngas that are key feedstocks to produce a variety of liquid fuels in industry.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available