| MnWO4/生物质衍生碳纳米复合催化剂的制备及催化性能 |
| Synthesis and Electrocatalytic Properties of MnWO4/Biomass-Derived Carbon Nanocomposite Catalyst |
| 作者 | 单位 | E-mail | | 刘卓磊 | 西安建筑科技大学材料科学与工程学院, 功能材料研究所, 西安 710055 | | | 李静文 | 西安建筑科技大学材料科学与工程学院, 功能材料研究所, 西安 710055 | | | 孙梦龙 | 西安建筑科技大学材料科学与工程学院, 功能材料研究所, 西安 710055 | | | 张永伟 | 西安建筑科技大学材料科学与工程学院, 功能材料研究所, 西安 710055 | | | 党长伟 | 西安建筑科技大学材料科学与工程学院, 功能材料研究所, 西安 710055 | | | 云斯宁 | 西安建筑科技大学材料科学与工程学院, 功能材料研究所, 西安 710055 | yunsining@xauat.edu.cn |
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| 摘要: 通过共沉淀法合成了双金属氧化物MnWO4镶嵌生物质衍生碳（MnWO4/BC）纳米复合催化剂，并将其作为对电极（counter electrode，CE）催化剂组装了染料敏化太阳能电池（dye-sensitized solar cell，DSSC），探究了MnWO4/BC在非碘体系中的催化性能和光伏性能。结果表明：在铜氧化还原（Cu2+/Cu+）电对DSSC中获得的光电能量转换效率（power conversion efficiency，PCE）为3.57%（D35）和1.59%（Y123），高于Pt电极的PCE（3.12%，1.16%）；50次连续循环伏安测试表明，MnWO4/BC催化剂具有较好的电化学稳定性。 |
| 关键词: 染料敏化太阳能电池 双金属氧化物 生物质衍生碳 铜氧化还原电对 对电极催化剂 |
| 基金项目: 国家自然科学基金（No.51672208）和陕西省重点研发计划-国际合作重点项目（No.2019KWZ-03）资助。 |
| Abstract: A bimetal oxide embedded biomass-derived carbon (MnWO4/BC) nanocomposite catalyst was synthesized using a co-precipitation approach, and it was used as a counter electrode (CE) catalyst to assemble a dye-sensitized solar cell (DSSC). The catalytic performance and photovoltaic performance of MnWO4/BC in non-iodine system was explored. To boost the photovoltaic performance of DSSC, a novel copper redox couple (Cu2+/Cu+) and dye (D35, Y123) were adopted for replacing the traditional I-/I3- redox couple and N719 dye, respectively. The resulting novel DSSC with MnWO4/BC nanocomposite CE catalyst had a photovoltage of approximately 0.89 V. Moreover, it exhibited power conversion efficiency (PCE) of 3.57% and 1.59% for D35 and Y123 dyes, respectively, which were 14.4% and 27.0%, respectively, higher than that in the case of Pt. Fifty continuous cyclic voltammetry tests show that MnWO4/BC catalyst has good electrochemical stability. It is observed that the catalytic activity of MnWO4/BC enhanced significantly due to the superior conductivity and the special pore structure of BC, the excellent electrocatalytic ability of MnWO4, and the synergistic effect between MnWO4 and BC. |
| Keywords: dye-sensitized solar cell bimetal oxide biomass-derived carbon copper redox couple counter electrode catalyst |
| 投稿时间：2021-07-04 修订日期：2021-09-14 |
| 摘要点击次数: 2154 |
| 全文下载次数: 899 |
| 刘卓磊,李静文,孙梦龙,张永伟,党长伟,云斯宁.MnWO4/生物质衍生碳纳米复合催化剂的制备及催化性能[J].无机化学学报,2021,37(12):2219-2226. |
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