Facile synthesis of PbTiO3 truncated octahedra via solid-state reaction and their application in low-temperature CO oxidation by loading Pt nanoparticles

2014 ◽  
Vol 2 (24) ◽  
pp. 9035-9039 ◽  
Author(s):  
Simin Yin ◽  
Yihan Zhu ◽  
Zhaohui Ren ◽  
Chunying Chao ◽  
Xiang Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Solid State ◽  
Low Temperature ◽  
Co Oxidation ◽  
Solid State Reaction ◽  
Pt Nanoparticles ◽  
Facile Synthesis ◽  
Low Temperature Co Oxidation

Pt NPs have been investigated to selectively nucleate on the {111} facets of PbTiO3 truncated octahedra, exhibiting a remarkable low-temperature catalytic activity towards CO oxidation with a 100% conversion at ∼50 °C.

Facile synthesis of Co3O4@SiO2/Carbon Nanocomposite Catalysts from Rice Husk for Low-Temperature CO Oxidation

2022 ◽  
Vol 518 ◽  
pp. 112053
Author(s):  
Luong Xuan Dien ◽  
Huynh Dang Chinh ◽  
Nguyen Kim Nga ◽  
Rafael Luque ◽  
Sameh M. Osman ◽  
...  
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Rice Husk ◽  
Facile Synthesis ◽  
Low Temperature Co Oxidation ◽  
Nanocomposite Catalysts ◽  
Carbon Nanocomposite

Enhanced catalytic activity of Au-CeO2/Al2O3 monolith for low-temperature CO oxidation

2019 ◽  
Vol 129 ◽  
pp. 105729 ◽  
Author(s):  
Zhiwen Li ◽  
Huan Wang ◽  
Weiwei Zhao ◽  
Xin Xu ◽  
Quan Jin ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Co Oxidation ◽  
Low Temperature Co Oxidation

Low-temperature CO oxidation over CeO2 and CeO2@Co3O4 core–shell microspheres

2017 ◽  
Vol 41 (22) ◽  
pp. 13418-13424 ◽  
Author(s):  
Lu Zhang ◽  
Li Zhang ◽  
Guancheng Xu ◽  
Chi Zhang ◽  
Xin Li ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Co Oxidation ◽  
Core Shell ◽  
Synergistic Interactions ◽  
Low Temperature Co Oxidation

The excellent CO catalytic activity and stability of CeO2@Co3O4 composite were ascribed to the synergistic interactions between Co3O4 and CeO2.

scholarly journals Tailoring the reducibility and catalytic activity of CuO nanoparticles for low temperature CO oxidation

RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19499-19511 ◽  
Author(s):  
Abdallah F. Zedan ◽  
Assem T. Mohamed ◽  
M. Samy El-Shall ◽  
Siham Y. AlQaradawi ◽  
Amina S. AlJaber
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Copper Oxide ◽  
Co Oxidation ◽  
Cuo Nanoparticles ◽  
Low Temperature Co Oxidation

Copper oxide (CuO) nanoparticles of tailored reducibility could be used as inexpensive, efficient and durable catalysts for CO oxidation at low temperature.

Pt NPs immobilized on a N-doped graphene@Al2O3 hybrid support as robust catalysts for low temperature CO oxidation

2018 ◽  
Vol 54 (79) ◽  
pp. 11168-11171 ◽  
Author(s):  
Zhimin Jia ◽  
Fei Huang ◽  
Jiangyong Diao ◽  
Jiayun Zhang ◽  
Jia Wang ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Co Oxidation ◽  
Platinum Nanoparticles ◽  
Support Interaction ◽  
Metal Support Interaction ◽  
Metal Support ◽  
Low Temperature Co Oxidation ◽  
Doped Graphene ◽  
Strong Metal Support Interaction

Platinum nanoparticles (Pt NPs) immobilized on a N-doped graphene@Al2O3 hybrid support (Al2O3@CNx) were synthesized and exhibit superior catalytic activity for low temperature CO oxidation, due to a strong metal–support interaction between Pt NPs and the N-doped.

scholarly journals Catalytic activity of nanostructured Au: Scale effects versus bimetallic/bifunctional effects in low-temperature CO oxidation on nanoporous Au

2013 ◽  
Vol 4 ◽  
pp. 111-128 ◽  
Author(s):  
Lu-Cun Wang ◽  
Yi Zhong ◽  
Haijun Jin ◽  
Daniel Widmann ◽  
Jörg Weissmüller ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Co Oxidation ◽  
Surface Area ◽  
Photoelectron Spectroscopy ◽  
Scale Effects ◽  
Structural Parameters ◽  
Kinetic Measurements ◽  
X Ray ◽  
Low Temperature Co Oxidation

The catalytic properties of nanostructured Au and their physical origin were investigated by using the low-temperature CO oxidation as a test reaction. In order to distinguish between structural effects (structure–activity correlations) and bimetallic/bifunctional effects, unsupported nanoporous gold (NPG) samples prepared from different Au alloys (AuAg, AuCu) by selective leaching of a less noble metal (Ag, Cu) were employed, whose structure (surface area, ligament size) as well as their residual amount of the second metal were systematically varied by applying different potentials for dealloying. The structural and chemical properties before and after 1000 min reaction were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The catalytic behavior was evaluated by kinetic measurements in a conventional microreactor and by dynamic measurements in a temporal analysis of products (TAP) reactor. The data reveal a clear influence of the surface contents of residual Ag and Cu species on both O2 activation and catalytic activity, while correlations between activity and structural parameters such as surface area or ligament/crystallite size are less evident. Consequences for the mechanistic understanding and the role of the nanostructure in these NPG catalysts are discussed.

Facile Synthesis of Ammonium Aluminum Carbonate Hydroxide Multilayered Nanofiber by Using Solid State Reaction

2011 ◽  
Vol 415-417 ◽  
pp. 580-584 ◽  
Author(s):  
Xiao Fu Hu ◽  
Yun Qi Liu ◽  
Chen Guang Liu
Keyword(s):  
Phase Transformation ◽  
Elevated Temperature ◽  
Solid State ◽  
Low Temperature ◽  
Aluminum Oxide ◽  
Solid State Reaction ◽  
Particle Sizes ◽  
Facile Synthesis ◽  
New Synthesis ◽  
Carbonate Hydroxide

In this paper, we make systematical investigation for the new synthesis pathway of AACH multilayered nanofiber, which has been prepared by a low-temperature solid-state reaction. The phase transformation sequence of AACH on heating is found that the precursor converts into γ-Al2O3at 700-900°C and elevated temperature results in the θ-Al2O3and α- Al2O3crystal phase formation at 1000°C. With a higher calcination temperature at 1100°C, α- Al2O3pattern appears. The specific surface area (SBET) of aluminum oxide specie calcined at 500°C for 4h is still in 420.2m2/g. Meanwhile, it suggests a partial change in particle sizes and morphology of sample calcined at 500°C for 4h.

A highly moisture-resistant Fe-doped mesoporous Co3O4 catalyst for efficient low-temperature CO oxidation

2015 ◽  
Vol 39 (3) ◽  
pp. 1742-1748 ◽  
Author(s):  
Gengnan Li ◽  
Liang Li ◽  
Yongsheng Li ◽  
Jianlin Shi
Keyword(s):  
Catalytic Activity ◽  
Low Temperature ◽  
Co Oxidation ◽  
High Catalytic Activity ◽  
Low Temperature Co Oxidation ◽  
Moisture Conditions ◽  
Moisture Resistant

Compared with pure Co3O4 spinel, the Fe-doped catalyst demonstrates high catalytic activity and stability in low temperature CO oxidation under moisture conditions.

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