采用热重分析仪(TG)和差热分析仪(DSC)测定海绵Pd试样从室温直至1200℃升温过程中的相对热量和质量变化;采用X射线光电子能谱(XPS)测定不同处理条件下Pd片材试样的表面状态.在吸热-放热曲线上观测到了PdO 形成(260℃)、分解(720℃)和蒸发(877℃)等热效应.750℃以下Pd氧化是一个增重过程,而在更高温度下PdO的分解和蒸发导致失重.当Pd在高于850℃以上加热或淬火时,Pd呈Pd(0)化学态而保持光亮的金属表面:但是在低于此温度加热或淬火时,Pd表面因被PdO膜覆盖而呈暗晦色.
参考文献
| [1] | 谭庆麟;阙振寰.铂族金属[M].北京:冶金工业出版社,1996:11. |
| [2] | 宁远涛.Pd-Ni合金及其捕集网的结构变化[J].贵金属,2001(01):1-7. |
| [3] | 杨正芬,宁远涛,赵怀志.工业Pd-Ni合金捕集网的表面状态研究[J].贵金属,1999(02):1-9. |
| [4] | Rubel M;Pszonicka M .[J].Journal of Materials Science,1986,21:241. |
| [5] | McCabe A R;Smith G D W .[J].Platinum Metals Review,1988,32(01):11. |
| [6] | Contour J P;Mouvier G;Hoogewys M et al.[J].Journal of Catalysis,1997,48(03):217. |
| [7] | 宁远涛.硝酸工厂回收铂的原理和方法[J].贵金属,1996(01):43-50,12. |
| [8] | Yang Zhengfen;Ning Yuantao;Zhao Huaizhi .[J].Journal of Alloys and Compounds,1995,218:51. |
| [9] | Halzmann H .[J].Platinum Metals Review,1969,13(01):2. |
| [10] | Heywood A E .[J].Platinum Metals Review,1973,17(03):118. |
| [11] | Heywood A E .[J].Platinum Metals Review,1982,26(01):28. |
| [12] | Fierro J L G;Palacios J M;Tomas F .[J].Platinum Metals Review,1990,34(02):62. |
| [13] | Fierro J L G;Palacios J M;Tomas F .[J].Surface and Interface Analysis,1989,14:529. |
| [14] | 宁远涛,杨正芬,赵怀志.硝酸工厂钯合金捕集网回收铂的分析[J].贵金属,2000(01):1-7. |
| [15] | Ning Y T;Yang Z F;Zhao H Z .[J].Platinum Metals Review,1995,39(01):19. |
| [16] | Ning Yuantao;Yang Zhengfen;Zhao Huaizhi .[J].Platinum Metals Review,1996,40(02):80. |
| [17] | Raub E;Plate W Z .[J].Zeitschrift fur Metallkunde,1957,48(10):529. |
| [18] | Krier C A;Jaffee R J.[J].Journal of the Less-Common Metals,1963(05):411. |
| [19] | Chaston J C .[J].Platinum Metals Review,1975,19(04):135. |
| [20] | Rubel M;Pszonicka M .[J].Journal of Materials Science,1986,21:241. |
| [21] | Ning Yuantao;Wen Fei;Zhao Husizhi et al.[J].Rare Metals,1994,13(02):143. |
| [22] | 杨正芬,宁远涛,赵怀志.钯合金捕集网表面状态的XPS研究[J].贵金属,1995(01):12-15. |
| [23] | Slavinskyi M P.Physico-Chemical Properties of Elements[M].Moscow:Metallurgizdat,1952 |
| [24] | Hultgren R;Desai P G;Hawkins D T.Selected Values of the Thermodynamic Properties of Elements[M].Metals Park,1973 |
| [25] | Kim K S;Gossmann A F;Winograd N .[J].Analytical Chemistry,1974,46(01):197. |
| [26] | John F M.Handbook of X-Ray Photoelectron Spectroscopy[M].Physical Electronic Division,1992 |
| [27] | 宁远涛 .[J].中国科学基金,1997,2:129. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%