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通过环境友好的尿素热解对CeO纳米颗粒进行有效的原子氮掺杂及其对活性氧自由基清除的显著影响。

Effective Atomic N Doping on CeO Nanoparticles by Environmentally Benign Urea Thermolysis and Its Significant Effects on the Scavenging of Reactive Oxygen Radicals.

作者信息

Paick Jihun, Hong Seunghee, Bae Ji-Young, Jyoung Jy-Young, Lee Eun-Sook, Lee Doohwan

机构信息

Department of Chemical Engineering, The University of Seoul, Siripdae-gil 13, Jeonnong-dong, Seoul 02504, Republic of Korea.

JNTG Co., Ltd., 240-11 Naehyangan-gil, Jeongnam-myeon, Hwaseong-si, Gyeonggi-do 18523, Republic of Korea.

出版信息

ACS Omega. 2023 Jun 14;8(25):22646-22655. doi: 10.1021/acsomega.3c01305. eCollection 2023 Jun 27.

DOI:10.1021/acsomega.3c01305
PMID:37396232
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10308410/
Abstract

Atomic nitrogen doping on CeO nanoparticles (NPs) by an efficient and environmentally benign urea thermolysis approach is first studied, and its effects on the intrinsic scavenging activity of the CeO NPs for reactive oxygen radicals are investigated. The N-doped CeO (N-CeO) NPs, characterized by X-ray photoelectron and Raman spectroscopy analyses, showed considerably high levels of N atomic doping (2.3-11.6%), accompanying with an order of magnitude increase of the lattice oxygen vacancies on the CeO crystal surface. The radical scavenging properties of the N-CeO NPs are characterized by applying Fenton's reaction with collective and quantitative kinetic analysis. The results revealed that the significant increase of surface oxygen vacancies is the leading cause for the enhancements of radical scavenging properties by the N doping of CeO NPs. Enriched with abundant surface oxygen vacancies, the N-CeO NPs prepared by urea thermolysis provided about 1.4-2.5 times greater radical scavenging properties than the pristine CeO. The collective kinetic analysis revealed that the surface-area-normalized intrinsic radical scavenging activity of the N-CeO NPs is about 6- to 8-fold greater than that of the pristine CeO NPs. The results suggest the high effectiveness of the N doping of CeO by the environmentally benign urea thermolysis approach to enhance the radical scavenging activity of CeO NPs for extensive applications such as that in polymer electrolyte membrane fuel cells.

摘要

首次研究了通过高效且环境友好的尿素热解方法在CeO纳米颗粒（NPs）上进行原子氮掺杂，并研究了其对CeO NPs清除活性氧自由基的固有活性的影响。通过X射线光电子能谱和拉曼光谱分析表征的N掺杂CeO（N-CeO）NPs显示出相当高的N原子掺杂水平（2.3-11.6%），同时CeO晶体表面的晶格氧空位增加了一个数量级。通过应用Fenton反应并进行集体和定量动力学分析来表征N-CeO NPs的自由基清除特性。结果表明，表面氧空位的显著增加是CeO NPs通过N掺杂提高自由基清除特性的主要原因。通过尿素热解制备的N-CeO NPs富含大量表面氧空位，其自由基清除特性比原始CeO高约1.4-2.5倍。集体动力学分析表明，N-CeO NPs的表面积归一化固有自由基清除活性比原始CeO NPs高约6至8倍。结果表明，通过环境友好的尿素热解方法对CeO进行N掺杂以提高CeO NPs的自由基清除活性具有很高的有效性，可广泛应用于聚合物电解质膜燃料电池等领域。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/aef7/10308410/d8049a396120/ao3c01305_0010.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/aef7/10308410/b3d990ea46a4/ao3c01305_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/aef7/10308410/bbc686dc415f/ao3c01305_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/aef7/10308410/0b8f73ac4896/ao3c01305_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/aef7/10308410/308c7c55356f/ao3c01305_0008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/aef7/10308410/d8049a396120/ao3c01305_0010.jpg

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本文引用的文献

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RSC Adv. 2019 Feb 26;9(12):6745-6751. doi: 10.1039/c8ra09766f. eCollection 2019 Feb 22.
2
Ceria nanorods as highly stable free radical scavengers for highly durable proton exchange membranes.用于高度耐用质子交换膜的二氧化铈纳米棒作为高度稳定的自由基清除剂
RSC Adv. 2021 Sep 28;11(51):32012-32021. doi: 10.1039/d1ra05026e. eCollection 2021 Sep 27.
3
Large-Scale Synthesis and Medical Applications of Uniform-Sized Metal Oxide Nanoparticles.
大规模合成及均一尺寸金属氧化物纳米颗粒的医学应用
Adv Mater. 2018 Oct;30(42):e1704290. doi: 10.1002/adma.201704290. Epub 2018 Mar 24.
4
Ceria-Zirconia Nanoparticles as an Enhanced Multi-Antioxidant for Sepsis Treatment.氧化铈-氧化锆纳米颗粒作为增强型多抗氧化剂治疗败血症。
Angew Chem Int Ed Engl. 2017 Sep 11;56(38):11399-11403. doi: 10.1002/anie.201704904. Epub 2017 Jul 5.
5
Ultrasonic-assisted synthesis of ZrO2 nanoparticles and their application to improve the chemical stability of Nafion membrane in proton exchange membrane (PEM) fuel cells.超声辅助合成 ZrO2 纳米粒子及其在质子交换膜 (PEM) 燃料电池中提高 Nafion 膜化学稳定性的应用。
J Colloid Interface Sci. 2016 Dec 1;483:1-10. doi: 10.1016/j.jcis.2016.08.014. Epub 2016 Aug 8.
6
Fundamentals and Catalytic Applications of CeO2-Based Materials.基于 CeO2 的材料的基础原理及催化应用。
Chem Rev. 2016 May 25;116(10):5987-6041. doi: 10.1021/acs.chemrev.5b00603. Epub 2016 Apr 27.
7
A urea-assisted template method to synthesize mesoporous N-doped CeO2 for CO2 capture.一种用于合成介孔氮掺杂二氧化铈以捕获二氧化碳的尿素辅助模板法。
Dalton Trans. 2015 Nov 21;44(43):18718-22. doi: 10.1039/c5dt03562g.
8
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ACS Appl Mater Interfaces. 2012 Oct 24;4(10):5098-102. doi: 10.1021/am3016069. Epub 2012 Sep 25.
9
Investigation of polymer electrolyte membrane chemical degradation and degradation mitigation using in situ fluorescence spectroscopy.采用原位荧光光谱法研究聚合物电解质膜的化学降解及降解缓解。
Proc Natl Acad Sci U S A. 2012 Jan 24;109(4):1029-34. doi: 10.1073/pnas.1114672109. Epub 2012 Jan 4.
10
Decomposition of hydrogen peroxide at water-ceramic oxide interfaces.过氧化氢在水 - 陶瓷氧化物界面的分解
J Phys Chem B. 2005 Mar 3;109(8):3364-70. doi: 10.1021/jp046405d.