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Electrocatalytic Conversion of Carbon Dioxide and Nitrate Ions to Urea by a Titania-Nafion Composite Electrode

조회수 : 35 등록일 : 2017.11.16 00:00

저자 : Saravanakumar, D (Saravanakumar, Duraisamy); Hur, NH (Hur, Nam Hwi); Shin, W(Shin, Woonsup)
출처 : CHEMSUSCHEM
출판일 : 2017.10.23



Electrocatalytic Conversion of Carbon Dioxide and Nitrate Ions to Urea by a Titania-Nafion Composite Electrode


Saravanakumar, D (Saravanakumar, Duraisamy)1,2,3 ] Song, J (Song, Jieun)2,3 ] Lee, S (Lee, Sunhye)2,3 ] Hur, NH (Hur, Nam Hwi)2,3 ] Shin, W(Shin, Woonsup)2,3 ]


[ 1 ] VIT Univ, Dept Chem, Sch Adv Sci, Vellore 632014, Tamil Nadu, India
[ 2 ] Sogang Univ, Dept Chem, Seoul 121742, South Korea
[ 3 ] Sogang Univ, Korea Ctr Artificial Photosynth, Seoul 121742, South Korea



CO2 and nitrate ions were successfully converted to urea by a TiO2-Nafion nanocomposite electrode under ambient conditions. The composite electrode was constructed by dropcasting the mixture of P25 titania and Nafion solution on an indium-doped tin oxide (ITO) electrode. When the electrode was electrolyzed in CO2-saturated 0.1m KNO3 (pH4.5) solution at -0.98V versus Ag/AgCl, urea was formed with a Faradaic efficiency of 40%. The other reduced products obtained were NH3, CO, and H-2.






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