Experimental and modeling study of carbon suboxide decomposition behind reflected shock waves

被引：12

作者：

Aghsaee, M.

Boehm, H.

Duerrstein, S. H.

Fikri, M. ^{[1
]}

Schulz, C.

机构：

[1] Univ Duisburg Essen, IVG, Inst Verbrennung & Gasdynam, D-47048 Duisburg, Germany

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2012年 / 14卷 / 03期

关键词：

PARTICLE FORMATION; THERMAL-DECOMPOSITION; PYROLYSIS; HEAT;

D O I：

10.1039/c1cp22044f

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

At temperatures between 1150 and 2000 K and pressures between 0.1 and 0.2 MPa, the thermal decomposition of carbon suboxide (C3O2) behind reflected shock waves was investigated with a high-repetition-rate time-of-flight mass spectrometer (HRR-TOF-MS) connected to the end flange of a shock tube enabling rapid repetitive (100 kHz) measurements of the gas-phase composition. Concentration-time profiles for C3O2 and CO were measured and compared to simulations based on an improved mechanism for C3O2 decomposition and carbon cluster growth. In addition, relative concentrations of C atoms and C-2 molecules were detected and related to model predictions. For temperatures up to 1800 K, satisfactory agreement between experimental data and calculations was obtained. At higher temperatures, measurements and simulations differed noticeably. The importance of C-2 for the growth of carbon clusters was confirmed.

引用

页码：1246 / 1252

页数：7

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