DICP OpenIR
Correlation between microstructure and performance of Pt/TiO2 catalysts for formaldehyde catalytic oxidation at ambient temperature: Effects of hydrogen pretreatment
Peng, Jiaxi; Wang, Shudong
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2007-07-12
DOI10.1021/jp070821r
Volume111Issue:27Pages:9897-9904
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordSURFACE FRACTAL DIMENSION ; NONINTEGER DIMENSIONS ; PHYSICAL ADSORPTION ; ELECTRON-MICROSCOPY ; THERMAL-TREATMENT ; METAL-CATALYSTS ; CARBON ; BEHAVIOR ; HETEROGENEITY ; PARTICLES
AbstractAs long-term exposure to indoor air containing even a few ppm of formaldehyde may cause adverse effects on human health, catalytic oxidation is one of the most important and promising processes for the removal of formaldehyde. The catalyst adsorption and transport properties greatly affect its performance, which can be influenced by hydrogen pretreatment. For catalysts pretreated at 450 degrees C, the pore size distribution profile demonstrates the narrowest pore size distribution. Except for the catalyst pretreated at 900 degrees C, all catalysts exhibit a type H2 isotherm according to the IUPAC classification, characteristic of mesoporous materials. On the basis of calculations from the Mahnke and Mogel model, increasing the pretreatment temperature from 300 to 450 degrees C increases the fractal dimension d(f) from 2.23 to 2.39. However, a further increase from 700 to 900 degrees C causes the surface fractal dimension d(f) to decrease from 2.07 to 2.02, respectively. The volcano type of fractal dimension d(f) is also confirmed by the results calculated from Neimark's model, which is coincident with the performance of the catalysts pretreated at different temperatures.
Language英语
WOS IDWOS:000247762000034
Citation statistics
Cited Times:33[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/140652
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Peng, Jiaxi,Wang, Shudong. Correlation between microstructure and performance of Pt/TiO2 catalysts for formaldehyde catalytic oxidation at ambient temperature: Effects of hydrogen pretreatment[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2007,111(27):9897-9904.
APA Peng, Jiaxi,&Wang, Shudong.(2007).Correlation between microstructure and performance of Pt/TiO2 catalysts for formaldehyde catalytic oxidation at ambient temperature: Effects of hydrogen pretreatment.JOURNAL OF PHYSICAL CHEMISTRY C,111(27),9897-9904.
MLA Peng, Jiaxi,et al."Correlation between microstructure and performance of Pt/TiO2 catalysts for formaldehyde catalytic oxidation at ambient temperature: Effects of hydrogen pretreatment".JOURNAL OF PHYSICAL CHEMISTRY C 111.27(2007):9897-9904.
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