Title Page
Contents
Abstract 8
1. Introduction 10
2. Materials and Methods 15
2.1. Chemical reagents and Materials 15
2.2. preparation of ZIF-8 15
2.3. Preparing ZIF-8 derived porous carbon 15
2.4. SnO₂ impregnation 16
2.5. preparation of electrode 16
2.6. Characterization 17
2.7. Electrochemical measurements 17
3. Result and discussion 18
4. Conclusion 35
5. Reference 36
국문초록 41
Table 1. Formate concentration, pH, and Na⁺ ion concentration.[내용없음] 6
Figure 1. Characterization of Sn catalyst supported by ZIF-8 derived carbon (Sn/ZC). (a) XRD patterns of Sn/ZC catalysts heat treated at 100 ° to 300℃ under Ar/H2 gas and pristine... 19
Figure 2. Flow cell scheme for carbon dioxide reduction reaction. 21
Figure 3. (a) Total current densities vs potential curves measured using SnOx/ZC catalysts prepared with thermal annealing at 100℃, 200℃, and 300℃ and without annealing. HCOO¯,...[이미지참조] 23
Figure 4. (a) Electrochemical double layer capacitance of the as-impregnated SnOx/ZC and the heat-treated catalysts obtained at 100 °C, 200 °C, and 300 °C. (b)...[이미지참조] 25
Figure 5. XPS spectra of the as-impregnated and heat-treated SnOx/ZC catalysts measured in the (a) Sn 3d region. (b) the atomic ratio of tin to carbon and the atomic ratio of tin to...[이미지참조] 27
Figure 6. Cell scheme of SSE based system for production of high concentrated formate. 29
Figure 7. performances of formate production in SSE system cell. 0.5M H₂SO₄ was used as an anolyte. (a) I-V curve and (b) is corresponding formate faradaic efficiency and formate... 31
Figure 8. HCOONa production performances of SSE-based cell. (a) I-V curves and (b) sodium formate ratio versus formate at NaOH anolyte, (C) I-V curves and (d) sodium... 34