| ²é¿´: 459 | »Ø¸´: 0 | ||
18363531045гæ (³õÈëÎÄ̳)
|
[ÇóÖú]
Pd-dop-CeO2
|
|
ÇóÖú£º ±¾ÈËÐÂѧ¼ÆË㣬ÏëÎÊÒ»ÏÂÔÚ¸ÃÎÄÏ×ÖÐÌáµ½µÄPd-dopµÄÕý·½ÐÎÆ½Ãæ½á¹¹ÈçºÎÓÉÔÀ´µÄ°ËÃæÌå½á¹¹Öع¹¶øÀ´¡£ As the EXAFS study of Priolkar et al. suggested the existence of a stable structure with a lower Pd−O coordination, we carefully explored alternative structures of the Pd-doped CeO2 surface. This resulted in the identification of a stoichiometric Pd-dop-II structure shown in Figure 1, in which the Pd atom is coordinated in a square planar manner by four O atoms, i.e., one surface O atom, two subsurface O atom, and one O atom in the third atomic layer of CeO2 with respective Pd−O bond lengths of 1.92, 2.01, and 1.97 Å. This square planar Pd configuration can be obtained from the octahedral Pd-dop-I structure by a surface reconstruction, which involves a small barrier of only 0.53 eV. Pd-dop-I and Pd-dop-II are equally stable.@ÔÂÖ»À¶ |
» ±¾Ìû¸½¼þ×ÊÔ´Áбí
-
»¶Ó¼à¶½ºÍ·´À¡£ºÐ¡Ä¾³æ½öÌṩ½»Á÷ƽ̨£¬²»¶Ô¸ÃÄÚÈݸºÔð¡£
±¾ÄÚÈÝÓÉÓû§×ÔÖ÷·¢²¼£¬Èç¹ûÆäÄÚÈÝÉæ¼°µ½ÖªÊ¶²úȨÎÊÌ⣬ÆäÔðÈÎÔÚÓÚÓû§±¾ÈË£¬Èç¶Ô°æÈ¨ÓÐÒìÒ飬ÇëÁªÏµÓÊÏ䣺xiaomuchong@tal.com - ¸½¼þ 1 : Stable_Pd-Doped_Ceria_Structures_for_CH4_Activation_and_CO_Oxidation.pdf
2018-08-27 10:21:58, 2.94 M
» ²ÂÄãϲ»¶
£Ûµ÷¼ÁÐÅÏ¢£Ý211ÖÇÄÜÈ˹¤¸ÐÖª·½Ïò¹ú¼ÒÇàÄêÌØÆ¸×¨¼Ò¿ÎÌâ×éÕÐÊÕµ÷¼ÁÑо¿Éú
ÒѾÓÐ0È˻ظ´
[µ÷¼ÁÐÅÏ¢]211ÖÇÄÜÈ˹¤¸ÐÖª·½Ïò¹ú¼ÒÇàÄêÌØÆ¸×¨¼Ò¿ÎÌâ×éÕÐÊÕµ÷¼ÁÑо¿Éú
ÒѾÓÐ0È˻ظ´
ÎïÀíѧIÂÛÎÄÈóÉ«/·ÒëÔõôÊÕ·Ñ?
ÒѾÓÐ257È˻ظ´
0702Ò»Ö¾Ô¸¼ª´óBÇøÇóµ÷¼Á ±¾¿ÆÆÚ¼ä·¢±íһƪSci
ÒѾÓÐ2È˻ظ´
070200Çóµ÷¼Á£¬Ò»Ö¾Ô¸Ä³211£¬288·Ö
ÒѾÓÐ18È˻ظ´
·¨¹ú²©Ê¿ºóְλ
ÒѾÓÐ0È˻ظ´
ÖØÇì½»´ó26Äê˶ʿÉúÕÐÉúÄâµ÷¼Á֪ͨÒѳö£¡»¶Ó¼ÓÈë»úÆ÷ÊÓ¾õÓë3D¹âѧ³ÉÏñ¿ÎÌâ×é¡£
ÒѾÓÐ0È˻ظ´
¹ãÖÝ´óѧ¹âµçÐÅÏ¢¹¤³Ìרҵµ÷¼Á£¬ÕÐÊÕÎïÀíѧרҵѧÉú
ÒѾÓÐ1È˻ظ´
0702Ò»Ö¾Ô¸¼ª´óBÇøÇóµ÷¼Á ±¾¿ÆÆÚ¼ä·¢±íһƪSci
ÒѾÓÐ0È˻ظ´














»Ø¸´´ËÂ¥