以氰胺为原料,通过硬模板法制备了介孔石墨相C3 N4 (mg-C3 N4).用mg-C3 N4代替Pt制备染料敏化太阳能电池对电极,并对其电催化性能进行了研究.N2吸附数据表明所制备的mg-C3 N4具有较高的比表面积(87.4m2/g)和较大孔体积(0.45 cm3/g).电化学阻抗谱分析表明所制备的mg-G N4电极的电荷跃迁电阻为42.5Ω·cm2,证明mg-GN4电极对I3-还原反应具有较高的电催化活性.以mg-C3 N4电极作为对电极组装染料敏化太阳能电池,在100 mW/cm2光照下(AM 1.5),电池的光电转换效率达到3.72%,比无孔石墨相C3N4对电极所组装染料敏化太阳能电池的光电转换效率提高了103%.
参考文献
[1] | Aswani Yella;Hsuan-Wei Lee;Hoi Nok Tsao;Chenyi Yi;Aravind Kumar Chandiran;Khaja Nazeeruddin;Eric Wei-Guang Diau;Chen-Yu Yeh;Shaik M Zakeeruddin;Michael Gratzel.Porphyrin-Sensitized Solar Cells with Cobalt (Ⅱ/Ⅲ)-Based Redox Electrolyte Exceed 12 Percent Efficiency[J].Science,2011Nov.4 TN.6056(Nov.4 TN.6056):629-634. |
[2] | Murakami TN;Ito S;Wang Q;Nazeeruddin MK;Bessho T;Cesar I;Liska P;Humphry-Baker R;Comte P;Pechy P.Highly efficient dye-sensitized solar cells based on carbon black counter electrodes[J].Journal of the Electrochemical Society,200612(12):A2255-A2261. |
[3] | Han, J.;Kim, H.;Kim, D.Y.;Jo, S.M.;Jang, S.-Y..Water-soluble polyelectrolyte-grafted multiwalled carbon nanotube thin films for efficient counter electrode of dye-sensitized solar cells[J].ACS nano,20106(6):3503-3509. |
[4] | Jo, Y.;Cheon, J.Y.;Yu, J.;Jeong, H.Y.;Han, C.-H.;Jun, Y.;Joo, S.H..Highly interconnected ordered mesoporous carbon-carbon nanotube nanocomposites: Pt-free, highly efficient, and durable counter electrodes for dye-sensitized solar cells[J].Chemical communications,201265(65):8057-8059. |
[5] | Bin Zhao;Hut Huang;Peng Jiang.Flexible Counter Electrodes Based on Mesoporous Carbon Aerogel for High-Performance Dye-Sensitized Solar Cells[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201145(45):22615-22621. |
[6] | Hui Wang;Yun Hang Hu.Graphene as a counter electrode material for dye-sensitized solar cells[J].Energy & environmental science: EES,20128(8):8182-8188. |
[7] | Peng Zhai;Tzu-Chien Wei;Ya-Huei Chang;Yu-Ting Huang;Wei-Ting Yeh;Haijun Su;Shien-Ping Feng.High Electrocatalytic and Wettable Nitrogen-Doped Microwave-Exfoliated Graphene Nanosheets as Counter Electrode for Dye-Sensitized Solar Cells[J].Small,201416(16):3347-3353. |
[8] | Lee, K.S.;Lee, W.J.;Park, N.-G.;Kim, S.O.;Park, J.H..Transferred vertically aligned N-doped carbon nanotube arrays: Use in dye-sensitized solar cells as counter electrodes[J].Chemical communications,201114(14):4264-4266. |
[9] | Yao Zheng;Jian Liu;Ji Liang;Mietek Jaroniec;Shi Zhang Qiao.Graphitic carbon nitride materials: controllable synthesis and applications in fuel cells and photocatalysis[J].Energy & environmental science: EES,20125(5):6717-6731. |
[10] | Xu, J.;Wang, Y.;Zhu, Y..Nanoporous graphitic carbon nitride with enhanced photocatalytic performance[J].Langmuir: The ACS Journal of Surfaces and Colloids,201333(33):10566-10572. |
[11] | Sun, Y.;Li, C.;Xu, Y.;Bai, H.;Yao, Z.;Shi, G..Chemically converted graphene as substrate for immobilizing and enhancing the activity of a polymeric catalyst[J].Chemical communications,201026(26):4740-4742. |
[12] | Arne Thomas;Anna Fischer;Frederic Goettmann.Graphitic carbon nitride materials: variation of structure and morphology and their use as metal-free catalysts[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,200841(41):4893-4908. |
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