• 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

一种柠檬酸辅助沉积策略，用于合成介孔SiO限制的高度分散的LaMnO钙钛矿纳米颗粒用于丁胺催化氧化。

A citric acid-assisted deposition strategy to synthesize mesoporous SiO-confined highly dispersed LaMnO perovskite nanoparticles for -butylamine catalytic oxidation.

作者信息

Chen Huawei, Yang Yanran, Liu Qing, Cui Mifen, Chen Xian, Fei Zhaoyang, Tao Zuliang, Wang Minghong, Qiao Xu

机构信息

State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University Nanjing 210009 PR China

出版信息

RSC Adv. 2019 Mar 14;9(15):8454-8462. doi: 10.1039/c8ra10636c. eCollection 2019 Mar 12.

DOI:10.1039/c8ra10636c
PMID:35518705
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9061879/
Abstract

Catalytic oxidation can efficiently eliminate nitrogen-containing volatile organic compounds (NVOCs) and suppress the generation of toxic NO in order to avoid secondary pollution. In this study, mesoporous SiO-confined LaMnO perovskite nanoparticles with high dispersion were successfully prepared by a citric acid-assisted deposition method (LMO/SiO-SD) and tested for the oxidation of -butylamine. The method utilized the synergistic effect of abundant active hydroxyl groups existing on the SiO gel surface and citric acid, rendering the metal ions more uniformly scattered on the SiO surface. Strikingly, the LMO/SiO-SD sample exhibited the optimum catalytic performance ( at 246 °C) and the highest N selectivity, which was mainly ascribed to its abundant surface acid sites, superior low-temperature reducibility and higher ratio of surface Mn species. The apparent activation energy ( ) for -butylamine oxidation over LMO/SiO-SD sample was 29.0 kJ mol. Furthermore, the reaction mechanism of -butylamine oxidation was investigated by FITR and a reasonable reaction route for -butylamine oxidation over the LMO/SiO-SD sample was proposed.

摘要

催化氧化能够有效消除含氮挥发性有机化合物（NVOCs）并抑制有毒NO的生成，以避免二次污染。在本研究中，通过柠檬酸辅助沉积法（LMO/SiO-SD）成功制备了具有高分散性的介孔SiO负载LaMnO钙钛矿纳米颗粒，并对其氧化正丁胺的性能进行了测试。该方法利用了SiO凝胶表面存在的大量活性羟基与柠檬酸的协同作用，使金属离子更均匀地分散在SiO表面。引人注目的是，LMO/SiO-SD样品表现出最佳的催化性能（246℃时转化率为[具体转化率未给出]）和最高的N选择性，这主要归因于其丰富的表面酸性位点、优异的低温还原性以及较高的表面Mn物种比例。LMO/SiO-SD样品上正丁胺氧化的表观活化能（Ea）为29.0 kJ/mol。此外，通过傅里叶变换红外光谱（FTIR）研究了正丁胺氧化的反应机理，并提出了LMO/SiO-SD样品上正丁胺氧化的合理反应途径。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/2c49cbd8c0c7/c8ra10636c-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/d0c246f56476/c8ra10636c-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/40780f21f8f3/c8ra10636c-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/f4cf196c75fc/c8ra10636c-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/30695c9e186a/c8ra10636c-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/8551b49bce57/c8ra10636c-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/49223ad301bb/c8ra10636c-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/c00a7e5710b4/c8ra10636c-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/851f3289c252/c8ra10636c-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/3a4a5e3dc4e0/c8ra10636c-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/be9845a3f4fb/c8ra10636c-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/2c49cbd8c0c7/c8ra10636c-s2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/d0c246f56476/c8ra10636c-s1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/40780f21f8f3/c8ra10636c-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/f4cf196c75fc/c8ra10636c-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/30695c9e186a/c8ra10636c-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/8551b49bce57/c8ra10636c-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/49223ad301bb/c8ra10636c-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/c00a7e5710b4/c8ra10636c-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/851f3289c252/c8ra10636c-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/3a4a5e3dc4e0/c8ra10636c-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/be9845a3f4fb/c8ra10636c-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/26fd/9061879/2c49cbd8c0c7/c8ra10636c-s2.jpg

相似文献

1
A citric acid-assisted deposition strategy to synthesize mesoporous SiO-confined highly dispersed LaMnO perovskite nanoparticles for -butylamine catalytic oxidation.一种柠檬酸辅助沉积策略，用于合成介孔SiO限制的高度分散的LaMnO钙钛矿纳米颗粒用于丁胺催化氧化。
RSC Adv. 2019 Mar 14;9(15):8454-8462. doi: 10.1039/c8ra10636c. eCollection 2019 Mar 12.
2
Synergistic effects of Cu species and acidity of Cu-ZSM-5 on catalytic performance for selective catalytic oxidation of n-butylamine.Cu 物种与 Cu-ZSM-5 酸性协同作用对正丁胺选择催化氧化反应性能的影响。
J Environ Sci (China). 2020 Oct;96:55-63. doi: 10.1016/j.jes.2020.03.015. Epub 2020 May 6.
3
Rationally Engineering a CuO/Pd@SiO Core-Shell Catalyst with Isolated Bifunctional Pd and Cu Active Sites for -Butylamine Controllable Decomposition.理性设计具有孤立双功能 Pd 和 Cu 活性位的 CuO/Pd@SiO 核壳催化剂用于 -丁胺可控分解。
Environ Sci Technol. 2022 Nov 15;56(22):16189-16199. doi: 10.1021/acs.est.2c04256. Epub 2022 Oct 10.
4
Template-Mediated Ni(II) Dispersion in Mesoporous SiO for Preparation of Highly Dispersed Ni Catalysts: Influence of Template Type.模板介导的 Ni(II)在介孔 SiO2 中的分散用于制备高分散 Ni 催化剂：模板类型的影响。
ACS Appl Mater Interfaces. 2017 Jun 7;9(22):19335-19344. doi: 10.1021/acsami.7b04100. Epub 2017 May 23.
5
Erratum: Preparation of Poly(pentafluorophenyl acrylate) Functionalized SiO2 Beads for Protein Purification.勘误：用于蛋白质纯化的聚（丙烯酸五氟苯酯）功能化二氧化硅微珠的制备
J Vis Exp. 2019 Apr 30(146). doi: 10.3791/6328.
6
Defective Ultrafine MnO Nanoparticles Confined within a Carbon Matrix for Low-Temperature Oxidation of Volatile Organic Compounds.缺陷型超细 MnO 纳米颗粒限域在碳基质中用于低温氧化挥发性有机化合物。
Environ Sci Technol. 2021 Apr 20;55(8):5403-5411. doi: 10.1021/acs.est.0c08335. Epub 2021 Mar 22.
7
Partial substitution of magnesium in lanthanum manganite perovskite for nitric oxide oxidation: The effect of substitution sites.镧锰矿钙钛矿中镁部分替代用于一氧化氮氧化：替代位点的影响
J Colloid Interface Sci. 2020 Nov 15;580:49-55. doi: 10.1016/j.jcis.2020.07.023. Epub 2020 Jul 9.
8
Catalytic oxidation of trichloroethylene from gas streams by perovskite-type catalysts.钙钛矿型催化剂对气流中三氯乙烯的催化氧化。
Environ Sci Pollut Res Int. 2018 Apr;25(12):11584-11594. doi: 10.1007/s11356-018-1440-5. Epub 2018 Feb 10.
9
Morphologically controlled synthesis of porous spherical and cubic LaMnO3 with high activity for the catalytic removal of toluene.形态控制合成多孔球形和立方 LaMnO3 及其对甲苯催化去除的高活性。
ACS Appl Mater Interfaces. 2014 Oct 22;6(20):17394-401. doi: 10.1021/am500489x. Epub 2014 Oct 7.
10
Physico-chemical properties and catalytic activity of the sol-gel prepared Ce-ion doped LaMnO perovskites.溶胶-凝胶法制备的铈离子掺杂钙钛矿型锰酸镧的物理化学性质及催化活性
Sci Rep. 2019 May 23;9(1):7747. doi: 10.1038/s41598-019-44118-1.

引用本文的文献

1
Performance and emission characteristics of a diesel engine fuelled by biodiesel from black soldier fly larvae: Effects of synthesizing catalysts with citric acid.以黑水虻幼虫生物柴油为燃料的柴油机性能与排放特性：柠檬酸合成催化剂的影响
Heliyon. 2023 Oct 27;9(11):e21354. doi: 10.1016/j.heliyon.2023.e21354. eCollection 2023 Nov.

本文引用的文献

1
Sol-gel nanocasting synthesis of patterned hierarchical LaFeO3 fibers with enhanced catalytic CO oxidation activity.溶胶-凝胶纳米铸造法合成具有增强催化 CO 氧化活性的图案化分级 LaFeO3 纤维。
Nanoscale. 2011 Mar;3(3):974-6. doi: 10.1039/c0nr00760a. Epub 2011 Jan 14.
2
DRIFT study on cerium-tungsten/titania catalyst for selective catalytic reduction of NOx with NH3.DRIFT 研究铈-钨/二氧化钛催化剂用于氨选择性催化还原 NOx。
Environ Sci Technol. 2010 Dec 15;44(24):9590-6. doi: 10.1021/es102692b. Epub 2010 Nov 18.
3
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.
4
Chemical structures and performance of perovskite oxides.钙钛矿氧化物的化学结构与性能
Chem Rev. 2001 Jul;101(7):1981-2017. doi: 10.1021/cr980129f.