Enhanced Catalytic Denitrification Performance of Ruthenium-based Catalysts by Hydrogen Spillover from a Palladium Promoter
文献类型：期刊论文
| 作者 | Kong, Xiao2; Xiao, Jun1; Chen, Aitao2; Chen, Long2; Li, Chao2; Feng, Liu2; Ren, Xiaoli2; Fan, Xinzhuang1; Sun, Wuzhu2; Sun, Zhongti3 |
| 刊名 | JOURNAL OF COLLOID AND INTERFACE SCIENCE
 |
| 出版日期 | 2022-02-15 |
| 卷号 | 608页码:2973-2984 |
| 关键词 | Catalytic denitrification Ru-based catalyst Surface oxidation Hydrogen spillover |
| ISSN号 | 0021-9797 |
| DOI | 10.1016/j.jcis.2021.11.018 |
| 通讯作者 | Sun, Wuzhu(sunwuzhu@sdut.edu.cn) ; Sun, Zhongti(zts1989@mail.ustc.edu.cn) |
| 英文摘要 | Catalytic denitrification, a promising technology for nitrate removal, is increasingly limited by the rising price of Pd. Replacing Pd with less-expensive Ru would significantly reduce the cost; however, Ru-based catalysts have been reported to perform inconsistently in denitrification applications, making their replacement prospects unclear. Herein, the surface oxidation of Ru catalysts was confirmed to be a key factor that inhibits activity. A series of Ru-Pd catalysts containing small amounts of Pd (0.5 wt%) was developed to eliminate the Ru surface-oxide layer through the spillover of hydrogen atoms activated on the Pd promoter. Ru-Pd/Fe3O4 exhibited superior catalytic activity to Ru-Pd/C and Ru-Pd/Al2O3 because the reducible carrier (Fe3O4) has a lower resistance to hydrogen spillover and diffusion, as determined experimentally and supported by density functional theory calculations. This study developed a method that eliminates ruthenium surface oxides in situ and restores its denitrification activity, further reducing the barrier to Ru replacing Pd in catalytic aqueous denitrification. (c) 2021 Elsevier Inc. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[52070124] ; National Natural Science Foundation of China[51502305] ; State Key Laboratory of Heavy Oil Processing in China University of Petroleum[Y7F1911191] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000749890200006 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| 资助机构 | National Natural Science Foundation of China ; State Key Laboratory of Heavy Oil Processing in China University of Petroleum |
| 源URL | [http://ir.imr.ac.cn/handle/321006/173557]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Sun, Wuzhu; Sun, Zhongti |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Shandong Univ Technol, Sch Mat Sci & Engn, 266 Xincun West Rd, Zibo, Shandon 255000, Peoples R China 3.Jiangsu Univ, Sch Mat Sci & Engn, 301 Xuefu Rd, Zhenjiang 212013, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kong, Xiao,Xiao, Jun,Chen, Aitao,et al. Enhanced Catalytic Denitrification Performance of Ruthenium-based Catalysts by Hydrogen Spillover from a Palladium Promoter[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2022,608:2973-2984. |
| APA | Kong, Xiao.,Xiao, Jun.,Chen, Aitao.,Chen, Long.,Li, Chao.,...&Sun, Zhongti.(2022).Enhanced Catalytic Denitrification Performance of Ruthenium-based Catalysts by Hydrogen Spillover from a Palladium Promoter.JOURNAL OF COLLOID AND INTERFACE SCIENCE,608,2973-2984. |
| MLA | Kong, Xiao,et al."Enhanced Catalytic Denitrification Performance of Ruthenium-based Catalysts by Hydrogen Spillover from a Palladium Promoter".JOURNAL OF COLLOID AND INTERFACE SCIENCE 608(2022):2973-2984. |
入库方式： OAI收割
来源：金属研究所
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