稀土改性的氧化镍基低温乙烷氧化脱氢催化剂活性氧物种的Raman光谱研究

利用共沉淀法制备了几种稀土金属氧化物改性的氧化镍催化剂 ,考察了其乙烷氧化脱氢 (ODE)制乙烯的催化性能 ,讨论了不同稀土金属氧化物掺杂浓度对催化剂催化性能的影响 ,利用Raman光谱技术初步表征反应在该类催化剂上的活性氧物种为Raman谱带出现在 1 0 60cm- 1 的表面双原子超氧物种O-2 ,该谱峰的大小与催化剂的ODE性能有很好的对应关系

Selective Electroless Copper Plating Micro-pattern on Ceramics Without Sensitisation and Activation

本文提出一种新的化学镀铜工艺,与激光微细刻蚀技术相结合可在Al2O3基底上实现无敏化活化化学镀铜,获得光亮致密、分辨率较高(40μm),导电性良好的化学镀层.The purpose of this article is to provide a new technology of electroless copper plating without palladium activation steps. By combining the technology of laser micro-etching with the new copper-plating bath, copper plating on ceramics was obtained. The experimental results showed that the solution used for copper electroless plating was stable and the copper coating obtained was bright,dense with good electrical conductivity.The line definition was about 40 μm. The electroless Cu films deposited from this system were gentle and required simple operating conditions.作者联系地址：中科院福建物质结构研究所二部,中科院福建物质结构研究所二部,中科院福建物质结构研究所二部,中科院福建物质结构研究所二部,中科院福建物质结构研究所二部,中科院福建物质结构研究所二部 福建厦门361012中国科学院研究生院,北京100039 ,福建厦门361012 ,福建厦门361012中国科学院研究生院,北京100039 ,福建厦门361012 ,福建厦门361012 ,福建厦门361012Author's Address: 1, 2, GUO Qi-long~1, SHEN Yi-cheng~1, 2, ZHAO Xiong-chao~1, HONG Yan-ping~1, GU Zhi-jun~*11.Institute of Matter Structure Chinese Academy of Sciences, Corrosion Division, Xiamen 361012,China, 2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,China