• 文献检索
  • 文档翻译
  • 深度研究
  • 学术资讯
  • Suppr Zotero 插件Zotero 插件
  • 邀请有礼
  • 套餐&价格
  • 历史记录
应用&插件
Suppr Zotero 插件Zotero 插件浏览器插件Mac 客户端Windows 客户端微信小程序
定价
高级版会员购买积分包购买API积分包
服务
文献检索文档翻译深度研究API 文档MCP 服务
关于我们
关于 Suppr公司介绍联系我们用户协议隐私条款
关注我们

Suppr 超能文献

核心技术专利：CN118964589B侵权必究
粤ICP备2023148730 号-1Suppr @ 2026

文献检索

告别复杂PubMed语法，用中文像聊天一样搜索，搜遍4000万医学文献。AI智能推荐，让科研检索更轻松。

立即免费搜索

文件翻译

保留排版，准确专业，支持PDF/Word/PPT等文件格式，支持 12+语言互译。

免费翻译文档

深度研究

AI帮你快速写综述，25分钟生成高质量综述，智能提取关键信息，辅助科研写作。

立即免费体验

以稻壳基活性炭为载体的锰铈混合氧化物，对氨低温选择性催化还原氮氧化物具有高硫耐受性。

Manganese-cerium mixed oxides supported on rice husk based activated carbon with high sulfur tolerance for low-temperature selective catalytic reduction of nitrogen oxides with ammonia.

作者信息

Shu Yun, Zhang Fan, Wang Hongchang

机构信息

State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences Beijing 100012 China

出版信息

RSC Adv. 2019 Aug 5;9(41):23964-23972. doi: 10.1039/c9ra03937f. eCollection 2019 Jul 29.

DOI:10.1039/c9ra03937f
PMID:35530622
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9069626/
Abstract

A rice husk-derived activated carbon supported manganese-cerium mixed oxide catalyst (Mn-Ce/RAC) was prepared by an impregnation method and tested for the selective catalytic reduction of nitrogen oxides with ammonia (NH-SCR). 5 wt% Mn-Ce/RAC catalyst showed the highest activity, yielding nearly 100% NO conversion and N selectivity at 240 °C at a space velocity of 30 000 h. Compared with commercial activated carbon supported manganese-cerium mixed oxide catalyst (Mn-Ce/SAC), a higher SCR performance with good SO tolerance could be observed in the tested temperature range over the Mn-Ce/RAC catalyst. The characterization results revealed that the Mn-Ce/RAC catalyst had a higher Mn/Mn ratio, amount of chemisorbed oxygen and more Brønsted acid sites than the Mn-Ce/SAC catalyst. The XRD analysis indicated that Mn-Ce oxides were highly dispersed on the RAC support. These properties of Mn-Ce/RAC assisted the SCR reaction. Moreover, DRIFTS results demonstrated that sulfate species formation on Mn-Ce/RAC was much less in the presence of SO than that of Mn-Ce/SAC, which might be ascribed to the reduced alkalinity of the catalyst by the presence of SiO in RAC.

摘要

采用浸渍法制备了稻壳基活性炭负载锰铈混合氧化物催化剂（Mn-Ce/RAC），并对其进行了氨选择性催化还原氮氧化物（NH-SCR）测试。5 wt%的Mn-Ce/RAC催化剂表现出最高的活性，在240℃、空速为30000 h时，NO转化率接近100%，N选择性良好。与商业活性炭负载锰铈混合氧化物催化剂（Mn-Ce/SAC）相比，在测试温度范围内，Mn-Ce/RAC催化剂表现出更高的SCR性能和良好的SO耐受性。表征结果表明，Mn-Ce/RAC催化剂比Mn-Ce/SAC催化剂具有更高的Mn/Mn比、化学吸附氧量和更多的布朗斯特酸位点。XRD分析表明，Mn-Ce氧化物高度分散在RAC载体上。Mn-Ce/RAC的这些性质有助于SCR反应。此外，DRIFTS结果表明，在SO存在下，Mn-Ce/RAC上硫酸盐物种的形成比Mn-Ce/SAC少得多，这可能归因于RAC中SiO的存在降低了催化剂的碱性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/abdf71a87ea3/c9ra03937f-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/cfb7a1ff4574/c9ra03937f-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/7a8ae032fa6e/c9ra03937f-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/2a142697ef95/c9ra03937f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/70be1463ca68/c9ra03937f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/104962607187/c9ra03937f-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/e5a957e4ac4c/c9ra03937f-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/d42a8ca1b646/c9ra03937f-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/a9d66e946129/c9ra03937f-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/28e8333d1ff4/c9ra03937f-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/abdf71a87ea3/c9ra03937f-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/cfb7a1ff4574/c9ra03937f-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/7a8ae032fa6e/c9ra03937f-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/2a142697ef95/c9ra03937f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/70be1463ca68/c9ra03937f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/104962607187/c9ra03937f-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/e5a957e4ac4c/c9ra03937f-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/d42a8ca1b646/c9ra03937f-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/a9d66e946129/c9ra03937f-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/28e8333d1ff4/c9ra03937f-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c5bb/9069626/abdf71a87ea3/c9ra03937f-f10.jpg

相似文献

1
Manganese-cerium mixed oxides supported on rice husk based activated carbon with high sulfur tolerance for low-temperature selective catalytic reduction of nitrogen oxides with ammonia.以稻壳基活性炭为载体的锰铈混合氧化物，对氨低温选择性催化还原氮氧化物具有高硫耐受性。
RSC Adv. 2019 Aug 5;9(41):23964-23972. doi: 10.1039/c9ra03937f. eCollection 2019 Jul 29.
2
Low temperature performance and sulfur resistance enhancement of Mn-Ce oxides supported on W-modified MWCNT for NH-SCR removal of NO.低温性能和抗硫增强 Mn-Ce 氧化物负载在 W 修饰 MWCNT 上用于 NH-SCR 去除 NO。
J Air Waste Manag Assoc. 2021 Jun;71(6):689-700. doi: 10.1080/10962247.2021.1873205. Epub 2021 Feb 5.
3
Promotional effect of rare earth-doped manganese oxides supported on activated semi-coke for selective catalytic reduction of NO with NH.负载于活化半焦上的稀土掺杂锰氧化物对 NH3 选择性催化还原 NO 的促进作用。
Environ Sci Pollut Res Int. 2017 Nov;24(31):24473-24484. doi: 10.1007/s11356-017-0084-1. Epub 2017 Sep 12.
4
A comparative study of Mn/CeO2, Mn/ZrO2 and Mn/Ce-ZrO2 for low temperature selective catalytic reduction of NO with NH3 in the presence of SO2 and H2O.在 SO2 和 H2O 存在的情况下，Mn/CeO2、Mn/ZrO2 和 Mn/Ce-ZrO2 用于低温选择性催化还原 NO 与 NH3 的对比研究。
J Environ Sci (China). 2013 Apr 1;25(4):791-800. doi: 10.1016/s1001-0742(12)60109-0.
5
Effect of K-Modified Blue Coke-Based Activated Carbon on Low Temperature Catalytic Performance of Supported Mn-Ce/Activated Carbon.钾改性蓝焦炭基活性炭对负载型锰铈/活性炭低温催化性能的影响
ACS Omega. 2022 Mar 4;7(10):8798-8807. doi: 10.1021/acsomega.1c07076. eCollection 2022 Mar 15.
6
Acid modification enhances selective catalytic reduction activity and sulfur dioxide resistance of manganese-cerium-cobalt catalysts: Insight into the role of phosphotungstic acid.酸改性提高了锰铈钴催化剂的选择性催化还原活性和抗二氧化硫性能：磷钨酸作用的深入研究。
J Colloid Interface Sci. 2021 Dec;603:291-306. doi: 10.1016/j.jcis.2021.06.114. Epub 2021 Jun 23.
7
Insight into the promoting effect of support pretreatment with sulfate acid on selective catalytic reduction performance of CeO/ZrO catalysts.深入了解硫酸预处理对 CeO/ZrO2 催化剂选择性催化还原性能的促进作用。
J Colloid Interface Sci. 2022 Feb 15;608(Pt 3):2718-2729. doi: 10.1016/j.jcis.2021.10.191. Epub 2021 Nov 5.
8
Iron-doped Mn-Ce/TiO2 catalyst for low temperature selective catalytic reduction of NO with NH3.铁掺杂的 Mn-Ce/TiO2 催化剂用于氨低温选择性催化还原 NO。
J Environ Sci (China). 2010;22(9):1447-54. doi: 10.1016/s1001-0742(09)60274-6.
9
MnNiO spinel catalyst for high-efficiency selective catalytic reduction of nitrogen oxides with good resistance to HO and SO at low temperature.具有良好抗低温 HO 和 SO 性能的 MnNiO 尖晶石催化剂，用于高效选择性催化还原氮氧化物。
J Environ Sci (China). 2020 Mar;89:145-155. doi: 10.1016/j.jes.2019.10.010. Epub 2019 Nov 9.
10
Enhancement of activity and sulfur resistance of CeO2 supported on TiO2-SiO2 for the selective catalytic reduction of NO by NH3.在 TiO2-SiO2 负载的 CeO2 上增强活性和抗硫性，用于 NH3 选择性催化还原 NO。
Environ Sci Technol. 2012 Jun 5;46(11):6182-9. doi: 10.1021/es3001773. Epub 2012 May 11.

本文引用的文献

1
Ce-Ti amorphous oxides for selective catalytic reduction of NO with NH3: confirmation of Ce-O-Ti active sites.用于氨选择性催化还原 NO 的 Ce-Ti 非晶态氧化物：Ce-O-Ti 活性位的确证。
Environ Sci Technol. 2012 Sep 4;46(17):9600-5. doi: 10.1021/es301661r. Epub 2012 Aug 21.
2
Enhancement of activity and sulfur resistance of CeO2 supported on TiO2-SiO2 for the selective catalytic reduction of NO by NH3.在 TiO2-SiO2 负载的 CeO2 上增强活性和抗硫性，用于 NH3 选择性催化还原 NO。
Environ Sci Technol. 2012 Jun 5;46(11):6182-9. doi: 10.1021/es3001773. Epub 2012 May 11.
3
Catalytic reduction of NOx with NH3 over different-shaped MnO2 at low temperature.
低温下不同形状 MnO2 上用 NH3 催化还原 NOx。
J Hazard Mater. 2011 Apr 15;188(1-3):105-9. doi: 10.1016/j.jhazmat.2011.01.078. Epub 2011 Jan 26.
4
Influences of pyrolysis condition and acid treatment on properties of durian peel-based activated carbon.热解条件和酸处理对榴莲皮基活性炭性能的影响。
Bioresour Technol. 2010 Jan;101(1):426-9. doi: 10.1016/j.biortech.2009.07.040. Epub 2009 Aug 19.
5
DRIFT study of manganese/ titania-based catalysts for low-temperature selective catalytic reduction of NO with NH3.基于锰/二氧化钛的催化剂用于低温氨选择性催化还原NO的漫反射红外傅里叶变换光谱研究
Environ Sci Technol. 2007 Aug 15;41(16):5812-7. doi: 10.1021/es0700350.
6
Effect of Cr and Pt promoters on the surface properties of tungstated zirconia: FTIR spectroscopy of probe molecules (CO and NO).铬和铂助剂对钨酸锆表面性质的影响：探针分子（CO和NO）的傅里叶变换红外光谱分析
Phys Chem Chem Phys. 2006 Jan 21;8(3):407-17. doi: 10.1039/b511641d. Epub 2005 Nov 16.
7
A superior catalyst for low-temperature NO reduction with NH3.一种用于低温下用氨还原一氧化氮的优质催化剂。
Chem Commun (Camb). 2003 Apr 7(7):848-9. doi: 10.1039/b212725c.