应《网络安全法》要求，自2017年10月1日起，未进行实名认证将不得使用互联网跟帖服务。为保障您的帐号能够正常使用，请尽快对帐号进行手机号验证，感谢您的理解与支持！

24小时热门版块排行榜    

小木虫论坛-学术科研互动平台 » 化学化工区 » 催化 » 版块活动 » 催化知识大科普，欢迎虫友来交流！第二期（氧化铁催化材料）
152/2返回列表上一页12
查看: 2738  |  回复: 14
只看楼主 @他人 存档 新回复提醒 (忽略) 收藏    在APP中查看

gengxin60
祝福
11楼2016-02-24 09:57:19
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

zyhou

专家顾问 (文坛精英)
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
小木虫: 金币+0.5, 给个红包，谢谢回帖
送红花一朵
wonderfulong: 回帖置顶 2016-02-24 10:44:43
wonderfulong: 金币+10, 侯老师辛苦！ 2016-02-24 10:45:05
我们最近也做了一点！看看前言：
Iron (Fe) is one of the most abundant elements on earth and the sixth most abundant elements in the universe. It is of great importance to replace those noble metal based catalysts with artificial Fe-based materials for heterogeneous catalysis. Currently, Fe-based catalysts are widely used in ammonia synthesis [1], [2], [3] and [4], Fischer-Tropsch synthesis [5], and selective catalytic reduction of NOx with ammonia [6], and so on. Recently, it was reported that iron-based catalysts exhibited extraordinary performance for the direct coupling of methane to ethylene [7], for the oxygen-reduction reaction [8], and for selective hydrogenation of nitroarenes [9], where noble metals were required previously. And more recently, it was demonstrated that Fe-based nanohybrids were also capable to catalyze the graphitization of catkin [10], polymers [11], [12] and [13], and N-doped core–shell structured Fe/Fe3C in carbon nanotubes (CNTs) hybrids formed occasionally.
These findings are particularly interesting since the in-situ formed Fe/Fe3C particles ‘etch’ into solid material, leaving CNTs behind, and iron species encapsulated inside CNTs or graphene are extremely active for oxygen reduction reaction [10], [11], [12], [13], [14], [15], [16] and [17], and the selective hydrogenation [5] and [18]. These important achievements inspired us to explore a new strategy for the controlled synthesis and new application of Fe-based catalysts.
Herein, we demonstrated a new, one-step, facile strategy for the controlled synthesis of N-doped graphene layers (G) encapsulated Fe3C nanoparticles that embedded in N-doped carbon nanotubes (denoted as Fe3C@G-CNT) through direct pyrolysis a mixture of glucose (or xylitol, or sucrose), melamine and FeCl3 at varied temperature. The resulting Fe3C@G-CNT composites were applied for catalytic hydrogenation reactions. To our best knowledge, it is reported for the first time that the well-designed Fe3C-based CNTs composites have a great potential for highly catalytic activity and stability for hydrogenation reactions. The prominent catalytic performance and low production cost prove that Fe3C@G-CNT hybrid is a promising candidate to substitute noble metal catalysts in academic research.
赞一下 回复此楼
12楼2016-02-24 10:30:32
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

zyhou

专家顾问 (文坛精英)
★
小木虫: 金币+0.5, 给个红包，谢谢回帖
wonderfulong: 回帖置顶 2016-02-24 10:44:46
文献可以参考：Carbon，Volume 99, April 2016, Pages 330–337
催化知识大科普，欢迎虫友来交流！第二期（氧化铁催化材料）
1-s2.0-S0008622315305297-gr1.jpg
赞一下 回复此楼
13楼2016-02-24 10:32:36
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

jiandanii
顶一下，感谢分享！
14楼2016-03-15 10:48:43
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

百战大侠

新虫 (小有名气)
★
小木虫: 金币+0.5, 给个红包，谢谢回帖
哎，这么好的专题，却没有东西。
赞一下 回复此楼
15楼2016-11-29 10:28:37
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
相关版块跳转 我要订阅楼主 wonderfulong 的主题更新
152/2返回列表上一页12
普通表情 龙 兔 虎 猫 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 材料专硕326求调剂 +5 墨煜姒莘 2026-03-15 5/250 2026-03-16 21:30 by 木瓜膏
[考研] 药学383 求调剂 +3 药学chy 2026-03-15 4/200 2026-03-16 20:51 by 元子^0^
[考研] 286求调剂 +3 lemonzzn 2026-03-16 5/250 2026-03-16 20:43 by lemonzzn
[考研] 085601求调剂 +3 Du.11 2026-03-16 3/150 2026-03-16 20:42 by 无际的草原
[考研] 285求调剂 +6 ytter 2026-03-12 6/300 2026-03-16 15:05 by njzyff
[考研] 268求调剂 +5 一定有学上- 2026-03-14 6/300 2026-03-14 22:20 by 运气yunqi
[考研] 290求调剂 +4 @将就将就看 2026-03-10 8/400 2026-03-14 14:23 by 千千运气
[考研] 297求调剂 +4 学海漂泊 2026-03-13 4/200 2026-03-14 11:51 by 热情沙漠
[基金申请] 有必要更换申报口吗 20+3 fannyamoy 2026-03-11 3/150 2026-03-14 00:52 by zhanghaozhu
[考研] 312求调剂 +6 陌宸希 2026-03-10 6/300 2026-03-14 00:40 by JourneyLucky
[考研] 341求调剂 +3 番茄头--- 2026-03-10 3/150 2026-03-13 23:07 by JourneyLucky
[考研] 285 求调剂 资源与环境 一志愿北京化工大学 +3 未名考生 2026-03-10 3/150 2026-03-13 23:04 by JourneyLucky
[考研] 0703化学调剂 +4 快乐的香蕉 2026-03-11 4/200 2026-03-13 22:41 by JourneyLucky
[考研] 材料与化工求调剂一志愿 985 总分 295 +8 dream…… 2026-03-12 8/400 2026-03-13 22:17 by 星空星月
[考研] 26调剂/材料/英一数二/总分289/已过A区线 +6 步川酷紫123 2026-03-13 6/300 2026-03-13 21:59 by 星空星月
[考研] 328化工专硕求调剂 +4 。，。，。，。i 2026-03-12 4/200 2026-03-13 14:44 by JourneyLucky
[考研] 0856化学工程280分求调剂 +4 shenzxsn 2026-03-11 4/200 2026-03-13 11:55 by ymwdoctor
[考研] 化工学硕306求调剂 +9 42838695 2026-03-12 9/450 2026-03-13 10:16 by houyaoxu
[考研] 298求调剂 +3 Vv呀！ 2026-03-10 3/150 2026-03-10 22:40 by 剑诗杜康
[考研] 收调剂 +7 调剂的考研学生 2026-03-10 7/350 2026-03-10 17:57 by 麦茶汤圆
信息提示
关闭
请填处理意见
关闭