Hydrogen-reduced Cu/ZnO composite as efficient reusable catalyst for diesel particulate matter oxidation

Grisel Corro; Surinam Cebada; Umapada Pal; Jose Luis García Fierro; Josefina Alvarado

doi:10.1016/j.apcatb.2014.10.048

Hydrogen-reduced Cu/ZnO composite as efficient reusable catalyst for diesel particulate matter oxidation

Grisel Corro, Surinam Cebada, Umapada Pal, Jose Luis García Fierro, Josefina Alvarado

Departamento de Física

Research output: Contribution to journal › Article › peer-review

Abstract

Hydrogen-reduced copper-loaded ZnO (Cu/ZnO) showed a strong diesel particulate matter oxidation activity at temperature as low as 150°C. Cu/ZnO catalyst with 5% nominal Cu content was tested for the oxidation of diesel particulate matter under air flow between 25 and 800°C. The high catalytic performance of reduced 5%Cu/ZnO even after its use in diesel particulate matter oxidation has been assigned to the presence of Cu1+ ions at its surface, determined by Auger electronic spectroscopy. The high stability of Cu1+ could be assigned to the isoelectronic interaction of Cu1+ (3d10) with Zn2+ (3d10) at the Cu2O-ZnO interface. Results presented in this work indicate that the composite catalyst can be considered as part of an exhaust catalytic system, for abating diesel particulate matter emission at low temperature.

Original language	American English
Pages (from-to)	555-565
Number of pages	11
Journal	Applied Catalysis B: Environmental
Volume	165
DOIs	https://doi.org/10.1016/j.apcatb.2014.10.048
State	Published - 1 Apr 2015

Keywords

Cold engine diesel emissions
Cu/ZnO composite catalyst
Cu1+
Diesel particulate matter oxidation

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title = "Hydrogen-reduced Cu/ZnO composite as efficient reusable catalyst for diesel particulate matter oxidation",

abstract = "Hydrogen-reduced copper-loaded ZnO (Cu/ZnO) showed a strong diesel particulate matter oxidation activity at temperature as low as 150°C. Cu/ZnO catalyst with 5% nominal Cu content was tested for the oxidation of diesel particulate matter under air flow between 25 and 800°C. The high catalytic performance of reduced 5%Cu/ZnO even after its use in diesel particulate matter oxidation has been assigned to the presence of Cu1+ ions at its surface, determined by Auger electronic spectroscopy. The high stability of Cu1+ could be assigned to the isoelectronic interaction of Cu1+ (3d10) with Zn2+ (3d10) at the Cu2O-ZnO interface. Results presented in this work indicate that the composite catalyst can be considered as part of an exhaust catalytic system, for abating diesel particulate matter emission at low temperature.",

keywords = "Cold engine diesel emissions, Cu/ZnO composite catalyst, Cu1+, Diesel particulate matter oxidation",

author = "Grisel Corro and Surinam Cebada and Umapada Pal and Fierro, {Jose Luis Garc{\'i}a} and Josefina Alvarado",

year = "2015",

month = apr,

day = "1",

doi = "10.1016/j.apcatb.2014.10.048",

language = "American English",

volume = "165",

pages = "555--565",

journal = "Applied Catalysis B: Environmental",

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TY - JOUR

T1 - Hydrogen-reduced Cu/ZnO composite as efficient reusable catalyst for diesel particulate matter oxidation

AU - Corro, Grisel

AU - Cebada, Surinam

AU - Pal, Umapada

AU - Fierro, Jose Luis García

AU - Alvarado, Josefina

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Hydrogen-reduced copper-loaded ZnO (Cu/ZnO) showed a strong diesel particulate matter oxidation activity at temperature as low as 150°C. Cu/ZnO catalyst with 5% nominal Cu content was tested for the oxidation of diesel particulate matter under air flow between 25 and 800°C. The high catalytic performance of reduced 5%Cu/ZnO even after its use in diesel particulate matter oxidation has been assigned to the presence of Cu1+ ions at its surface, determined by Auger electronic spectroscopy. The high stability of Cu1+ could be assigned to the isoelectronic interaction of Cu1+ (3d10) with Zn2+ (3d10) at the Cu2O-ZnO interface. Results presented in this work indicate that the composite catalyst can be considered as part of an exhaust catalytic system, for abating diesel particulate matter emission at low temperature.

AB - Hydrogen-reduced copper-loaded ZnO (Cu/ZnO) showed a strong diesel particulate matter oxidation activity at temperature as low as 150°C. Cu/ZnO catalyst with 5% nominal Cu content was tested for the oxidation of diesel particulate matter under air flow between 25 and 800°C. The high catalytic performance of reduced 5%Cu/ZnO even after its use in diesel particulate matter oxidation has been assigned to the presence of Cu1+ ions at its surface, determined by Auger electronic spectroscopy. The high stability of Cu1+ could be assigned to the isoelectronic interaction of Cu1+ (3d10) with Zn2+ (3d10) at the Cu2O-ZnO interface. Results presented in this work indicate that the composite catalyst can be considered as part of an exhaust catalytic system, for abating diesel particulate matter emission at low temperature.

KW - Cold engine diesel emissions

KW - Cu/ZnO composite catalyst

KW - Cu1+

KW - Diesel particulate matter oxidation

UR - http://www.mendeley.com/research/hydrogenreduced-cuzno-composite-efficient-reusable-catalyst-diesel-particulate-matter-oxidation

U2 - 10.1016/j.apcatb.2014.10.048

DO - 10.1016/j.apcatb.2014.10.048

M3 - Article

VL - 165

SP - 555

EP - 565

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

SN - 0926-3373

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