Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States.
Nano Lett. 2010 Nov 10;10(11):4762-6. doi: 10.1021/nl1034545.
We report the first experimental study of catalytic CO oxidation over copper oxide (CuO) nanowires (NWs) grown directly on copper meshes. The catalytic activity of CuO NWs is significantly improved by a brief argon or hydrogen radio frequency plasma treatment. The plasma enhancement effect comes from the generation of grain boundaries and the reduction of Cu(II) to the more active oxidation state Cu(I) according to our TEM, XPS, and kinetic study.
我们报告了在铜网上直接生长的氧化铜（CuO）纳米线（NWs）催化一氧化碳氧化的首次实验研究。通过短暂的氩气或氢气射频等离子体处理，显著提高了 CuO NWs 的催化活性。根据我们的 TEM、XPS 和动力学研究，等离子体增强效应来自晶界的产生和 Cu(II)还原为更活跃的氧化态 Cu(I)。
