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引用次数: 0
利用硝酸盐污染物合成尿素
现在,Jianping Lai 及其合作者在《能源与环境科学》(Energy & Environmental Science)杂志上报告了一种由多壁碳纳米管(Ru-CuxBi/CNTs)上的掺杂 Ru 的 CuxBi 合金组成的催化剂(如图),用于尿素的电合成。该合成在较宽的 NO3- 浓度范围(1-1,000 mM)内产量都很高。通过无溶剂微波方法制备一系列具有不同掺杂量和铜铋质量比的 Ru-CuxBi/CNTs 催化剂,发现 Cu9Bi 比率的催化剂具有最大的电化学活性表面积和最佳的催化性能。*H的吸附抑制了相互竞争的氢进化反应。这种效应与 Bi 位点上 NO3- 还原的增强相结合,提高了中间体 *NHO 在催化剂上的覆盖率。Cu 位点促进了 CO2 的吸附和活化。
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