当前位置:
X-MOL 学术
›
J. Phys. Chem. C
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
CO2 Reduction on Cu at Low Overpotentials with Surface-Enhanced in Situ Spectroscopy
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2016-08-02 00:00:00 , DOI: 10.1021/acs.jpcc.6b03065
Jeffrey Heyes 1 , Marco Dunwell 1 , Bingjun Xu 1
The Journal of Physical Chemistry C ( IF 3.3 ) Pub Date : 2016-08-02 00:00:00 , DOI: 10.1021/acs.jpcc.6b03065
Jeffrey Heyes 1 , Marco Dunwell 1 , Bingjun Xu 1
Affiliation
![]() |
In situ surface-enhanced spectroscopic and reactivity investigations of the electrochemical reduction of CO2 at low overpotentials (<0.7 V) was conducted on Cu surfaces. Vibrational bands corresponding to adsorbed hydrogen (Had) and carbon monoxide (COad) on Cu have been identified at 2090 and 2060 cm–1, respectively. Spectroscopic investigations show that Had is capable of partially displacing COad; however, COad is unable to displace Had to any detectable level. The preferential adsorption of H over CO on Cu is consistent with the high selectivity toward the hydrogen evolution reaction at potentials >−0.8 V versus reversible hydrogen electrode.
中文翻译:
表面增强原位光谱技术在低超电势下还原CO 2
在铜表面上进行了低过电势(<0.7 V)下电化学还原CO 2的原位表面增强光谱和反应性研究。分别在2090和2060 cm –1处确定了与Cu上吸附的氢(H ad)和一氧化碳(CO ad)对应的振动带。光谱学研究表明,H ad能够部分取代CO ad ; 但是,CO广告无法替换H广告达到任何可检测的水平。H相对于CO在Cu上的优先吸附与在相对于可逆氢电极的电势> -0.8 V时对氢析出反应的高选择性相一致。
更新日期:2016-08-02
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
表面增强原位光谱技术在低超电势下还原CO 2
在铜表面上进行了低过电势(<0.7 V)下电化学还原CO 2的原位表面增强光谱和反应性研究。分别在2090和2060 cm –1处确定了与Cu上吸附的氢(H ad)和一氧化碳(CO ad)对应的振动带。光谱学研究表明,H ad能够部分取代CO ad ; 但是,CO广告无法替换H广告达到任何可检测的水平。H相对于CO在Cu上的优先吸附与在相对于可逆氢电极的电势> -0.8 V时对氢析出反应的高选择性相一致。