摘要
通过水热法分别制备Co掺杂及Ti掺杂的Mn-Ce/石墨烯催化剂,并通过X射线衍射(XRD),X射线光电子能谱(XPS),拉曼(Raman)光谱,H_2程序升温还原(H_2-TPR)及NH_3程序升温脱附(NH_3-TPD)等表征手段对两种催化剂分别进行结构和理化性质的分析。再通过对比两种催化剂去除NO_x的催化活性,N_2选择性与抗硫性可知,Co掺杂Mn-Ce/石墨烯催化剂在低温情况下有较高的催化活性,并且很好地改善了Mn-Ce/石墨烯催化剂的N_2选择性及抗硫性。
Mn-Ce/GR catalysts doped with Co and Ti were prepared by a hydrothermal method respectively.These two kinds of catalysts were characterized systematically to elucidate their morphological structure and physicochemical properties by X-ray diffraction (XRD),X-ray photoelectron spectroscopy (XPS),Raman spectrum,H2temperature programmed reduction (H2-TPR),NH3temperature programmed desorption (NH3-TPD),etc.Through comparing the catalytic activity of NO removal, N2 selectivity and sulfur resistance of these two kinds of catalysts,it can be seen that Co could enhance Mn-Ce/GR catalyst' s catalytic activity at low temperature,and improve its N2selectivity and sulfur resistance.
作者
周鹏飞
尤晓晨
李舒健
盛重义
肖香
俞丹青
杨柳
ZHOU Peng-fei;YOU Xiao-chen;LI Shu-jian;SHENG Zhong-yi;XIAO Xiang;YU Dan-qing;YANG Liu(School of Environment,Nanjing Normal University,Nanjing 210023,China;Suzhou Industrial Technology Research Institute of Zhejiang University,Suzhou 215163,China;School of Chemical Engineering and Technology,Wuhan University of Science and technology,Wuhan 430081,China)
出处
《环境工程》
CAS
CSCD
北大核心
2018年第11期94-99,104,共7页
Environmental Engineering
基金
国家自然科学基金项目(51508281,41771498)
江苏省高校自然科学研究项目(16KJD610001).
