Microfabricated reactors for on-chip heterogeneous catalysis

被引：37

作者：

McCreedy, T ^{[1
]}

Wilson, NG ^{[1
]}

机构：

[1] Univ Hull, Dept Chem, Kingston Upon Hull HU6 7RX, N Humberside, England

来源：

ANALYST | 2001年 / 126卷 / 01期

关键词：

D O I：

10.1039/b007223k

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Microfabricated devices constructed from glass and polydimethylsiloxane with integral heaters are described, which can be used for heterogeneous catalysis reactions. Sulfated zirconia is used as the catalyst in an open channel reactor, with either a syringe pump or electroosmotic flow being used to deliver the reactants. The results clearly demonstrate that very high conversion efficiencies are possible, however, the thermodynamics of the reactions are the same as in bulk systems. Ethanol and hexanol are dehydrated to ethene and hexene, respectively, with conversion efficiencies approaching 100%, and the esterification of ethanol is investigated. Yields of approximately 30% ethyl acetate are obtained by gas chromatographic analysis. This is the first time such a method for fabricating a catalyst micro reactor has been reported, yet it demonstrates sufficient robustness and resistance to leakage. The use of electroosmotic flow in a heated catalyst reactor is a significant advancement in reactor design.

引用

页码：21 / 23

页数：3

共 13 条

[1]

Chen YH, 1999, CLIN CHEM, V45, P1938

[2] The fabrication of micro-porous silica structures for micro-reactor technology [J].

Christensen, PD ;

Johnson, SWP ;

McCreedy, T ;

Skelton, V ;

Wilson, NG .

ANALYTICAL COMMUNICATIONS, 1998, 35 (10) :341-343

[3] Activity and regenerability of sulfated zirconia superacid catalysts in isobutane/1-butene alkylation [J].

Das, D ;

Chakrabarty, DK .

ENERGY & FUELS, 1998, 12 (01) :109-114

[4] Further studies into the development of a micro-FIA (μFIA) system based on electroosmotic flow for the determination of phosphate as orthophosphate [J].

Doku, GN ;

Haswell, SJ .

ANALYTICA CHIMICA ACTA, 1999, 382 (1-2) :1-13

[5] Characterisation of a micro-total analytical system for the determination of nitrite with spectrophotometric detection [J].

Greenway, GM ;

Haswell, SJ ;

Petsul, PH .

ANALYTICA CHIMICA ACTA, 1999, 387 (01) :1-10

[6] Microfluidic assays of acetylcholinesterase inhibitors [J].

Hadd, AG ;

Jacobson, SC ;

Ramsey, JM .

ANALYTICAL CHEMISTRY, 1999, 71 (22) :5206-5212

[7] Microfabricated filters for microfluidic analytical systems [J].

He, B ;

Tan, L ;

Regnier, F .

ANALYTICAL CHEMISTRY, 1999, 71 (07) :1464-1468

[8] Integration of microfabricated devices to capillary electrophoresis-electrospray mass spectrometry using a low dead volume connection: Application to rapid analyses of proteolytic digests [J].

Li, JJ ;

Thibault, P ;

Bings, NH ;

Skinner, CD ;

Wang, C ;

Colyer, C ;

Harrison, J .

ANALYTICAL CHEMISTRY, 1999, 71 (15) :3036-3045

[9] Rapid prototyping of glass and PDMS microstructures for micro total analytical systems and micro chemical reactors by microfabrication in the general laboratory [J].

McCreedy, T .

ANALYTICA CHIMICA ACTA, 2001, 427 (01) :39-43

[10] THE CONVERSION OF METHANOL INTO HYDROCARBONS OVER MODIFIED ZIRCONIA [J].

NITTA, M ;

SAKOH, H ;

AOMURA, K .

APPLIED CATALYSIS, 1984, 10 (02) :215-217

← 1 2 →