Kinetic modelling for photosynthesis of hydrogen and methane through catalytic reduction of carbon dioxide with water vapour

被引：116

作者：

Tan, Seng Sing ^{[1
]}

Zou, Linda ^{[2
]}

Hu, Eric ^{[3
]}

机构：

[1] Sch Engn, Singapore 569830, Singapore

[2] Victoria Univ, Inst Sustainabil & Innovat, Melbourne, Vic 3000, Australia

[3] Deakin Univ, Sch Engn & Technol, Geelong, Vic 3217, Australia

来源：

CATALYSIS TODAY | 2008年 / 131卷 / 1-4期

关键词：

kinetic model; photocatalysis; reduction of CO(2); energy conversion;

D O I：

10.1016/j.cattod.2007.10.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In a photocatalytic reduction process when products formed are not effectively desorbed, they could hinder the diffusion of intermediates on the surface of the catalyst, as well as increase the chance of collisions among the products, resulting photo-oxidation in a reserve reaction on the surface. This paper analyses a simple kinetic model incorporating the coupled effect of the adsorptive photocatalytic reduction and oxidation. The development is based on Langmuir-Hinshelwood mechanism to model the formation rates of hydrogen and methane through photocatalytic reduction of carbon dioxide with water vapour. Experimental data obtained from literatures have achieved a very good fit. Such model could aid as a tool for related areas of studies. A comparative study using the model developed, showed that product concentration in term of ppm would be an effective measurement of product yields through photocatalytic reduction of carbon dioxide with water vapour. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：125 / 129

页数：5

共 14 条

[11] A miniaturized reactor for photocatalysis and for simultaneous in situ spectroscopy [J].