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Li R, Liu J, Xiao M, Sun Y, Liu F, Gan J, Gao S. Atomic Strain Wave-Featured LaRuIr Nanocrystals: Achieving Simultaneous Enhancement of Catalytic Activity and Stability toward Acidic Water Splitting. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2400095. [PMID: 38529761 DOI: 10.1002/smll.202400095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Revised: 03/07/2024] [Indexed: 03/27/2024]
Abstract
Rare earth microalloying nanocrystals have gotten widespread attention due to their unprecedented performances with customization-defected nanostructures, divided energy bands, and ensembled surface chemistry, regarded as a class of ideal electrocatalysts for oxygen evolution reaction (OER). Herein, a lanthanide microalloying strategy is proposed to fabricate strain wave-featured LaRuIr nanocrystals with oxide skin through a rapid crystal nucleation, using thermally assisted sodium borohydride reduction in aqueous solution at 60 °C. The atomic strain waves with alternating compressive and tensile strains, resulting from La-stabilized edge dislocations in form of Cottrell atmospheres. In 0.5 m H2SO4, the LaRuIr displays an overpotential of 184 mV at 10 mA cm-2, running at a steadily cell voltage for 60 h at 50 mA cm-2, eightfold enhancement of IrO2||Pt/C assemble in PEMWE. The coupled compressive and tensile profiles boost the OER kinetics via faster AEM and LOM pathways. Moreover, the tensile facilitates surface structure stabilization through dynamic refilling of lattice oxygen vacancies by the adsorbed oxyanions on La, Ru, and Ir sites, eventually achieving a long-term stability. This work contributes to developing advanced catalysts with unique strain to realize simultaneous improvement of activity and durability by breaking the so-called seesaw relationship between them during OER for water splitting.
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Affiliation(s)
- Rongchao Li
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jingjun Liu
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Mingyue Xiao
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yanhui Sun
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Feng Liu
- Yunnan Precious Metals Lab, Kunming, 650100, China
| | - Jun Gan
- Yunnan Precious Metals Lab, Kunming, 650100, China
| | - Shixin Gao
- Yunnan Precious Metals Lab, Kunming, 650100, China
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2
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Huang Z, Zhao L, Guo Q, Fan D, Ren X, Wei Q, Wu D. Controlled-Release Electrochemiluminescence Biosensor with Strong Self-On Effect by a Multiple Signal Amplification Strategy for Trace Detection of Prostate-Specific Antigen. Anal Chem 2024; 96:6659-6665. [PMID: 38635916 DOI: 10.1021/acs.analchem.4c00048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The enhancement of sensitivity in biological analysis detection can reduce the probability of false positives of the biosensor. In this work, a novel self-on controlled-release electrochemiluminescence (CRE) biosensor was designed by multiple signal amplification and framework-enhanced stability strategies. As a result, the changes of the ECL signal were enhanced before and after the controlled-release process, achieving sensitive detection of prostate-specific antigen (PSA). Specifically, for one thing, Fe3O4@CeO2-NH2 with two paths for enhancing the generation of coreactant radicals was used as the coreaction accelerator to boost ECL performance. For another, due to the framework stability, zeolitic imidazolate framework-8-NH2 (ZIF-8-NH2) was combined with luminol to make the ECL signal more stable. Based on these strategies, the constructed CRE biosensor showed a strong self-on effect in the presence of PSA and high sensitivity in a series of tests. The detection range and limit of detection (LOD) were 5 fg/mL to 10 ng/mL and 2.8 fg/mL (S/N = 3), respectively, providing a feasible approach for clinical detection of PSA.
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Affiliation(s)
- Ziqiu Huang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Lu Zhao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Qingfang Guo
- Shandong Water Conservancy Vocational College, Rizhao 276826, P. R. China
| | - Dawei Fan
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Xiang Ren
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Qin Wei
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
| | - Dan Wu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, P. R. China
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3
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Xiong Z, Zhu Y, Liu J, Du Y, Zhou F, Jin J, Yang Q, Lu W. The influence of H 2O or/and O 2 introduction during the low-temperature gas-phase sulfation of organic COS + CS 2 on the conversion and deposition of sulfur-containing species in the sulfated CeO 2-OS catalyst for NH 3-SCR. NANOSCALE 2024; 16:1223-1237. [PMID: 38115815 DOI: 10.1039/d3nr04686a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
Herein, the typical components of blast furnace gas, including H2O and O2, were introduced to improve the NH3-SCR activity of the sulfated CeO2-OS catalyst during the gas-phase sulfation of organic COS + CS2 at 50 °C. The characterization results demonstrate that the introduction of O2 or H2O during gas-phase sulfation enhances the conversion of organic COS + CS2 on a cubic fluorite CeO2 surface and reduces the formation of sulfur and sulfates in the catalyst, but decreases the BET surface area and pore volume of the sulfated CeO2-OS catalyst. However, the introduction of O2 or H2O during the gas-phase sulfation increases the molar ratios of Ce3+/(Ce3+ + Ce4+) and Oβ/(Oα + Oβ + Oγ) on the sulfated CeO2-OS catalyst surface, thus promoting the formation of surface oxygen vacancies and chemisorbed oxygen, and these properties of the catalyst are further enhanced by the co-existence of O2 and H2O. Furthermore, the reduction of sulfates formed under the action of O2 or H2O decreases the weak acid sites of the sulfated CeO2-OS catalyst, but the few and highly dispersive sulfates present stronger reducibility, and the proportion of medium-strong acid sites of the catalyst increases. These factors help to improve the NH3-SCR activity of the sulfated CeO2-OS catalyst. Thus, there exists a synergistic effect of H2O and O2 introduction during gas-phase sulfation on the physical-chemical properties and catalytic performance of the sulfated CeO2-OS catalyst by organic COS + CS2 at 50 °C.
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Affiliation(s)
- Zhibo Xiong
- School of Energy and Power Engineering, University of Shanghai for Science & Technology, Shanghai, 200093, China.
| | - Yafei Zhu
- School of Energy and Power Engineering, University of Shanghai for Science & Technology, Shanghai, 200093, China.
| | - Jiaxing Liu
- School of Energy and Power Engineering, University of Shanghai for Science & Technology, Shanghai, 200093, China.
| | - Yanping Du
- School of Engineering, Lancaster University, Lancaster, LA1 4YW, UK
| | - Fei Zhou
- Jiangsu Guoxin Jingjiang Power Co. Ltd., Jingjiang 214500, Jiangsu, China
| | - Jing Jin
- School of Energy and Power Engineering, University of Shanghai for Science & Technology, Shanghai, 200093, China.
| | - Qiguo Yang
- School of Energy and Power Engineering, University of Shanghai for Science & Technology, Shanghai, 200093, China.
| | - Wei Lu
- School of Energy and Power Engineering, University of Shanghai for Science & Technology, Shanghai, 200093, China.
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4
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Huang Z, Zhao L, Li Y, Wang H, Ma H, Wei Q, Wu D. Glucose oxidation induced pH stimuli response controlled release electrochemiluminescence biosensor for ultrasensitive detection of CYFRA 21-1. Talanta 2024; 266:124955. [PMID: 37478763 DOI: 10.1016/j.talanta.2023.124955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/12/2023] [Accepted: 07/15/2023] [Indexed: 07/23/2023]
Abstract
Herein, a self on electrochemiluminescence (ECL) biosensor was constructed by pH stimuli response controlled release strategy, in which SiO2-PEI as the carrier, BSA/luminol-Ab2 as the encapsulated substance, gold nanoparticles (Au NPs) as the blocking cap, glucose as the inducer. In addition, CeO2-Au was used as catalyst, which generated more O2•- to increase the ECL signal. Under the action of voltage, the glucose was oxidized to gluconic acid, which induced the pH to decrease accordingly. Therefore, Au NPs were stimulated to fall from the surface of SiO2-PEI, releasing the BSA/luminol-Ab2 to realize self on mode. With such design, the constructed self on ECL biosensor owned an ultrasensitive detection capacity of CYFRA 21-1, showing an excellent linear relationship in the range of 0.001-100000 ng/L and 0.4 fg/mL low limit of detection (LOD). It provided an innovative idea for the biosensor construction to clinical detection of lung cancer.
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Affiliation(s)
- Ziqiu Huang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, Shandong, China
| | - Lu Zhao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, Shandong, China
| | - Yuyang Li
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, Shandong, China
| | - Huan Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, Shandong, China
| | - Hongmin Ma
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, Shandong, China
| | - Qin Wei
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, Shandong, China; Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
| | - Dan Wu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022, Shandong, China.
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5
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Promotional Effect of Zirconium Doping on the NH
3
‐SCR Activity of CeO
2
and CeO
2
‐TA Modified by Thiourea: A Comparative Study. ChemCatChem 2023. [DOI: 10.1002/cctc.202201578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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6
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Li F, Wang S, Li T, Tian Y, Wang M, Cai W. Effect of Calcination Temperature on the Performance of SiO2@Co@CeO2 Catalyst in CO2 Reforming With Ethanol. Catal Letters 2023. [DOI: 10.1007/s10562-023-04282-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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7
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The synergistic promotional effect of W doping and sulfate modification on the NH3-SCR activity of CeO2 catalyst. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112250] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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8
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Zhang L, Xing X, Sun R, Hu M. Catalytic conversion of carbohydrates into 5-ethoxymethylfurfural using γ-AlOOH and CeO 2@B 2O 3 catalyst synergistic effect. RSC Adv 2022; 12:23118-23128. [PMID: 36090408 PMCID: PMC9380190 DOI: 10.1039/d2ra01866g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/01/2022] [Indexed: 11/21/2022] Open
Abstract
Selective catalytic conversion of carbohydrates to 5-ethoxymethylfurfural (EMF) is a critical approach to the biorefinery. In this work, solid acid catalysts of γ-AlOOH and CeO2@B2O3 were used to convert carbohydrates to EMF in a one-pot process, performed in an ethanol/DMSO solvent system. The synergistic effect of γ-AlOOH and CeO2@B2O3 was studied. Furthermore, the morpho-structural properties of the catalysts were characterized, and the effects of reaction time, reaction temperature, catalyst load, and the amount of cosolvent on the conversion of glucose to EMF were examined and optimized. Under the reaction conditions of 170 °C for 20 h, glucose, sucrose, cellobiose, inulin and starch were used as raw materials, and the EMF yield range was 9.2–27.7%. The results showed that the synergistic effect of γ-AlOOH and CeO2@B2O3 further causes the combination of multiple acid sites with different types and strength distributions. Particularly, the collaboration between weak, medium-strong, and strong acid, as well as between Lewis and Brønsted acidity, is of great significance for EMF generation. The reusability experiments showed that the combined catalytic system was easily separated and maintained catalytic activity for five successive reactions without further intermediate regeneration steps. This work provides a promising route for the catalytic conversion of biomass-derived carbohydrates into EMF. γ-AlOOH and CeO2@B2O3 solid acid catalysts were synthesized for the one-pot selective conversion of carbohydrates into 5-ethoxymethylfurfural under their synergistic catalysis.![]()
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Affiliation(s)
- Luxin Zhang
- College of Environmental and Municipal Engineering, Shaanxi Key Laboratory of Environmental Engineering, Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, P. R. China
| | - Xu Xing
- College of Environmental and Municipal Engineering, Shaanxi Key Laboratory of Environmental Engineering, Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, P. R. China
| | - Ruijun Sun
- College of Environmental and Municipal Engineering, Shaanxi Key Laboratory of Environmental Engineering, Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, P. R. China
| | - Meng Hu
- College of Environmental and Municipal Engineering, Shaanxi Key Laboratory of Environmental Engineering, Key Lab of Northwest Water Resource, Environment and Ecology, MOE, Xi'an University of Architecture and Technology, Xi'an 710055, P. R. China
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9
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Zhao L, Song X, Ren X, Fan D, Wei Q, Wu D. Rare Self-Luminous Mixed-Valence Eu-MOF with a Self-Enhanced Characteristic as a Near-Infrared Fluorescent ECL Probe for Nondestructive Immunodetection. Anal Chem 2021; 93:8613-8621. [PMID: 34115479 DOI: 10.1021/acs.analchem.1c01531] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Steady and efficient sensitized emission of Eu2+ to Eu3+ can be achieved through a rare mixed-valence Eu-MOF (L4EuIII2EuII). Compared with the sensitization of other substances, the similar ion radius and configuration of the extranuclear electron between Eu2+ and Eu3+ make sensitization easier and more efficient. The sensitization of Eu2+ to Eu3+ is of great assistance for the self-enhanced luminescence of L4EuIII2EuII, the longer luminous time, and the more stable electrochemiluminescence (ECL) signal. Simultaneously, L4EuIII2EuII possesses near-infrared (NIR) fluorescence of around 900 nm and a mighty self-luminous characteristic, which render it useful as a NIR fluorescent probe and as a luminophore to establish a NIR ECL biosensor. This NIR biosensor can greatly reduce the damage to the detected samples and even achieve a nondestructive test and improve the detection sensitivity by virtue of strong susceptibility and environmental suitability of NIR. In addition, the CeO2@Co3O4 triple-shelled microspheres further enhanced the ECL intensity due to two redox pairs of Ce3+/Ce4+ and Co2+/Co3+. The NIR ECL biosensor based on these strategies owns an ultrasensitive detection ability of CYFRA 21-1 with a low limit of detection of 1.70 fg/mL and also provides a novel idea for the construction of a highly effective nondestructive immunodetection biosensor.
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Affiliation(s)
- Lu Zhao
- Collaborative Innovation Centre for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022 Shandong, China
| | - Xianzhen Song
- Collaborative Innovation Centre for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022 Shandong, China
| | - Xiang Ren
- Collaborative Innovation Centre for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022 Shandong, China
| | - Dawei Fan
- Collaborative Innovation Centre for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022 Shandong, China
| | - Qin Wei
- Collaborative Innovation Centre for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022 Shandong, China
| | - Dan Wu
- Collaborative Innovation Centre for Green Chemical Manufacturing and Accurate Detection School of Chemistry and Chemical Engineering, Key Laboratory of Interfacial Reaction & Sensing Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, 250022 Shandong, China
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10
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Trivedi S, Prasad R, Mishra A, Kalam A, Yadav P. Current scenario of CNG vehicular pollution and their possible abatement technologies: an overview. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:39977-40000. [PMID: 32803583 PMCID: PMC7429099 DOI: 10.1007/s11356-020-10361-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 08/03/2020] [Indexed: 05/25/2023]
Abstract
Compressed natural gas is an alternative green fuel for automobile industry. Recently, the Indian government is targeting to replace all the conventional fuel vehicles by compressed natural gas (CNG) automobiles due to its several merits. Still, the presence of a significant amount of CO, CH4, and NOx gases in the CNG vehicle exhaust are quiet a matter of concern. Thus, to control the emissions from CNG engines, the major advances are under development of and oxidation is one of them in catalytic converter. In literature, the catalysts such as noble and non-noble metals have been reported for separate oxidation of CO and CH4.. Experimentally, it was found that non-noble metal catalysts are preferred due to its low cost, good thermal stability, and molding tractability. In literature, several articles have been published for CO and CH4 oxidation but no review paper is still available. Thus, the present review provides a comprehensive overview of separate as well as simultaneous CO and CH4 oxidation reactions for CNG vehicular emission control.
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Affiliation(s)
- Suverna Trivedi
- Department of Chemical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India.
- Department of Chemical Engineering, National Institute of Technology, Rourkela, Odisha, India.
| | - Ram Prasad
- Department of Chemical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
| | - Ashuthosh Mishra
- Department of Chemical Engineering, Indian Institute of Technology, Banaras Hindu University, Varanasi, India
- Department of Environment Engineering, CSIR, National Environment and Engineering Research Institute, Noida, India
| | - Abul Kalam
- Department of Chemistry, College of Science, King Khalid University, Guraiger, Saudi Arabia
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, Guraiger, Saudi Arabia
| | - Pankaj Yadav
- Department of Solar Energy, Pandit Deendayal Petroleum University, Gandhinagar, Gujarat, 382 007, India
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11
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Shilina M, Udalova O, Krotova I, Ivanin I, Boichenko A. Oxidation of Carbon Monoxide on Co−Ce‐Modified ZSM‐5 Zeolites: Impact of Mixed Oxo‐Species. ChemCatChem 2020. [DOI: 10.1002/cctc.201902063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marina Shilina
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
| | - Olga Udalova
- Semenov Institute of Chemical Physics RAS Kosygina street, 4 119991 Moscow Russia
| | - Irina Krotova
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
| | - Igor Ivanin
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
| | - Anton Boichenko
- Department of Chemistry Lomonosov Moscow State University Leninskie Gory, 1/3 119991 Moscow Russia
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12
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CeO2/Co3O4 hollow microsphere: Pollen-biotemplated preparation and application in photo-catalytic degradation. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124193] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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13
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Feng X, Liu D, Li W, Jin X, Zhang Z, Zhang Y. Catalytic activity boost of CeO 2/Co 3O 4 nanospheres derived from CeCo-glycolate via yolk–shell structural evolution. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01162e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
CeO2/Co3O4 hybrid nanospheres have been successfully prepared via thermal decomposition of CeCo-glycolate precursors.
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Affiliation(s)
- Xilan Feng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing 100191
- China
| | - Dapeng Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing 100191
- China
| | - Wang Li
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing 100191
- China
| | - Xin Jin
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing 100191
- China
| | - Zheng Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing 100191
- China
| | - Yu Zhang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education
- School of Chemistry
- Beihang University
- Beijing 100191
- China
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14
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The controlled preparation and performance of Fe, Co-modified porous ceria nanorods for the total oxidation of propane. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2019.110663] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Zeng J, Zhong X, Yu J, Zhang T, Wang Y, Chang H. Promotional Effect of Preparation Methods on Catalytic Reduction of NO by CO over CoCeO x Catalysts. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b04232] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jie Zeng
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
| | - Xuemei Zhong
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
| | - Jie Yu
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
| | - Tao Zhang
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
| | - Yazhou Wang
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
| | - Huazhen Chang
- School of Environment and Natural Resources, Renmin University of China, Beijing 100872, China
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16
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Abstract
Ceria in nanoscale with different morphologies, rod, tube and cube, were prepared through a hydrothermal process. The structure, morphology and textural properties were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM) and isothermal N2 adsorption-desorption. Ceria with different morphologies were evaluated as catalysts for CO oxidation. CeO2 nanorods showed superior activity to the others. When space velocity was 12,000 mL·gcat−1·h−1, the reaction temperature for 90% CO conversion (T90) was 228 °C. The main reason for the high activity was the existence of large amounts of easily reducible oxygen species, with a reduction temperature of 217 °C on the surface of CeO2 nanorods. Another cause was their relatively large surface area.
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17
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Mukherjee D, Devaiah D, Venkataswamy P, Vinodkumar T, Smirniotis PG, Reddy BM. Superior catalytic performance of a CoOx/Sn–CeO2 hybrid material for catalytic diesel soot oxidation. NEW J CHEM 2018. [DOI: 10.1039/c8nj01184b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Co3O4/Sn–CeO2 hybrid catalyst exhibited superior soot oxidation activity due to the existence of synergism among the multivalent cations and the stepped surface of the hybrid catalyst.
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Affiliation(s)
- Deboshree Mukherjee
- Inorganic and Physical Chemistry Division
- CSIR – Indian Institute of Chemical Technology
- Uppal Road
- Hyderabad 500 007
- India
| | - Damma Devaiah
- Chemical Engineering
- College of Engineering and Applied Science
- University of Cincinnati
- Cincinnati
- USA
| | | | - T. Vinodkumar
- Department of Chemistry
- Indian Institute of Technology
- Hyderabad 502 285
- India
| | - Panagiotis G. Smirniotis
- Chemical Engineering
- College of Engineering and Applied Science
- University of Cincinnati
- Cincinnati
- USA
| | - Benjaram M. Reddy
- Inorganic and Physical Chemistry Division
- CSIR – Indian Institute of Chemical Technology
- Uppal Road
- Hyderabad 500 007
- India
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