• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Physical chemistry chemical physics: PCCP >Simple photoreduction of carbon dioxide to formic acid and true quantum yield
【24h】

Simple photoreduction of carbon dioxide to formic acid and true quantum yield

机译：二氧化碳对甲酸的简单拍摄和真数量产量

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

There is a need to develop techniques for conversion of carbon dioxide to useful products such as formaldehyde, formic acid, methanol, and hydrocarbons. Carbon dioxide can be converted into these products using either photochemically, electrochemically, thermochemical or hydrogenation by bacteria. Formate is of interest due to the possibility of being used in liquid fuel cells, as an additive in pyrolysis vapors and as a precursor for biological fuels. In this work, conversion of carbon dioxide to formic acid under acidic conditions and formate under basic or neutral conditions was accomplished through photoreduction using an inexpensive setup consisting of titanium dioxide, metal phthalocyanines and inexpensive incandescent sources. The yield of formic acid based on anion chromatography was 1.54%. This work also discusses and presents a true quantum yield determined using chemical actinometry which was near 2.0%. Detailed studies of the photoreduction process showed that the amount of sensitizer, light intensity and pH affect the amount of formate generated.
机译：需要开发用于将二氧化碳转化为有用的产品的技术，例如甲醛，甲酸，甲醇和烃。可以使用微细胞使用光化学，电化学，热化学或氢化将二氧化碳转化为这些产品。由于在液体燃料电池中使用的可能性，甲醛是感兴趣的，作为热解蒸汽中的添加剂和作为生物燃料的前体。在这项工作中，通过使用由二氧化钛，金属酞菁和廉价的白炽灯源组成的廉价设置将二氧化碳转化为酸性条件下的酸性条件和中性条件下的甲酸和甲醛。基于阴离子色谱法的甲酸产率为1.54％。这项工作还讨论并呈现了使用近2.0％的化学活化仪测定的真正量子产率。对光电引导过程的详细研究表明，敏化剂，光强度和pH的量影响甲酸的量。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号