CO oxidation catalyzed by RuO2 nanoparticles supported on mesoporous Al2O3 prepared via atomic layer deposition

被引：3

作者：

Kim, Il Hee ^{[1
]}

Jeong, Myung-Geun ^{[1
]}

Han, Sang Wook ^{[1
]}

Park, Eun Ji ^{[1
]}

Hwang, Young Kyu ^{[2
]}

Kim, Young Dok ^{[1
,2
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

[2] KRICT, Res Ctr Nanocatalysts, Daejeon 305600, South Korea

来源：

CURRENT APPLIED PHYSICS | 2016年 / 16卷 / 10期

关键词：

Ruthenium oxide; CO oxidation; Atomic layer deposition; Mesoporous Al2O3; AMBIENT-PRESSURE XPS; INFRARED-SPECTROSCOPY; RUTHENIUM CATALYSTS; ROOM-TEMPERATURE; CARBON-MONOXIDE; SURFACE; DEACTIVATION; OXIDE; IDENTIFICATION; REACTIVITY;

D O I：

10.1016/j.cap.2016.07.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Using atomic layer deposition (ALD), RuO2 was deposited on mesoporous Al2O3 with a mean pore size of similar to 12 nm and particle diameter of similar to 1 mm. The entire internal structure of mesoporous Al2O3 was coated by RuO2 nanostructures using ALD, forming a mesoporous bead of RuO2/Al2O3. Substantially high CO oxidation activity at reaction temperatures below 100 degrees C is also shown. There was a decrease in CO oxidation activity with time at 100 degrees C, and post-annealing at 700 degrees C fully recovered the catalytic activity of fresh RuO2/Al2O3. The RuO2/Al2O3 can be useful as an oxidation catalyst for eliminating harmful molecules. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：1407 / 1412

页数：6

共 38 条

[1] Structure and reactivity of surface oxides on Pt(110) during catalytic CO oxidation
Ackermann, MD
Pedersen, TM
Hendriksen, BLM
Robach, O
Bobaru, SC
Popa, I
Quiros, C
Kim, H
Hammer, B
Ferrer, S
Frenken, JWM
[J]. PHYSICAL REVIEW LETTERS, 2005, 95 (25)
[2] Understanding the structural deactivation of ruthenium catalysts on an atomic scale under both oxidizing and reducing conditions
Assmann, J
Crihan, D
Knapp, M
Lundgren, E
Löffler, E
Muhler, M
Narkhede, V
Over, H
Schmid, M
Seitsonen, AP
Varga, P
[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (06) : 917 - 920
[3] On the nature of the active state of supported ruthenium catalysts used for the oxidation of carbon monoxide:: Steady-state and transient kinetics combined with in situ infrared spectroscopy
Assmann, J
Narkhede, V
Khodeir, L
Löffler, E
Hinrichsen, O
Birkner, A
Over, H
Muhler, M
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (38) : 14634 - 14642
[4] Heterogeneous oxidation catalysis on ruthenium: bridging the pressure and materials gaps and beyond
Assmann, J.
Narkhede, V.
Breuer, N. A.
Muhler, M.
Seitsonen, A. P.
Knapp, M.
Crihan, D.
Farkas, A.
Mellau, G.
Over, H.
[J]. JOURNAL OF PHYSICS-CONDENSED MATTER, 2008, 20 (18)
[5] Kinetics and Active Surfaces for CO Oxidation on Pt-Group Metals Under Oxygen Rich Conditions
Chen, Mingshu
Zheng, Yanping
Wan, Huilin
[J]. TOPICS IN CATALYSIS, 2013, 56 (15-17) : 1299 - 1313
[6] Allylic oxidation of cyclohexene over ruthenium-doped titanium-pillared clay
Dali, Ahmed
Rekkab-Hammoumraoui, Ilhem
Choukchou-Braham, Abderrahim
Bachir, Redouane
[J]. RSC ADVANCES, 2015, 5 (37) : 29167 - 29178
[7] Novel Insight in the CO Oxidation on RuO2(110) by in Situ Reflection-Absorption Infrared Spectroscopy
Farkas, A.
Mellau, G. Ch.
Over, H.
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (32) : 14341 - 14355
[8] CO oxidation over ruthenium: identification of the catalytically active phases at near-atmospheric pressures
Gao, Feng
Goodman, D. Wayne
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2012, 14 (19) : 6688 - 6697
[9] CO oxidation catalyzed by NiO supported on mesoporous Al2O3 at room temperature
Han, Sang Wook
Kim, Dae Han
Jeong, Myung-Geun
Park, Ki Jung
Kim, Young Dok
[J]. CHEMICAL ENGINEERING JOURNAL, 2016, 283 : 992 - 998
[10] Competing reactions in three-way catalytic converters:: modelling of the NOx conversion maximum in the light-off curves under net oxidising conditions
Hoebink, JHBJ
van Gemert, RA
van den Tillaart, JAA
Marin, GB
[J]. CHEMICAL ENGINEERING SCIENCE, 2000, 55 (09) : 1573 - 1581

← 1 2 3 4 →