ZrO 2, ZrO 2. (M ) W O 3g ( 100% ) SO 4 2- W O 3 M oo 3, SO ( Zr (OH ) 4 ) ( ( 0. 1 mo l. L - 1 A gno 3 ), Zr (OH ) 4 SO (0.

Σχετικά έγγραφα
GPS, 0. 5 kg ( In tegrated Fertility Index, IF I) 1. 1 SPSS 10. IF I =

(H ipp op hae rham noid es L. ) , ; SHB 2g , 1. 0, 2. 0, 3. 0, 4. 0, 5. 0 ml mm. : Y = X - 0.

(T rip tery g ium w ilf ord ii Hook) ,Beroza [6 ] 4 W ilfo rine W ilfo rdine W ilfo rgine W il2. Euon ine 1. 0% 1980, 1. 1 ; 1. 0%, ; 0.

F ig. 1 Flow chart of comprehen sive design in the research of com patibil ity. E2m ail: ac. cn

26 3 V o l. 26 N o A cta Eco logiae A n im alis Dom astici M ay ,

6 cm, 1. 2 IAA, NAA, 2. 1

TR IBOLO GY N ov, 2004 , P I2. , 120 M Pa, P I. 6 mm 7 mm 30 mm [7, 8 ] mm,. JSM 25600LV 1. 1 (EDXA ).

(TPP)Co 1. 1 ], [ 1, 2 ] V o l. 3 N o. 4 N ov EL ECTROCH EM ISTR Y ) ) ,, Co V V. (T PP) Co (Py) , - 1.

; (A con itum kusnez of f ii R eichb. ),.

CH EM ICAL JOU RNAL O F CH IN ESE UN IV ERS IT IES nm, nm nm,,,. [1, 2 ] :

, ( , (P anax qu inquef olius) ) ; L C2V P series U H PE), M Pa R E252. C18 (5 Λm, 250 mm 4. 6 mm ) ( )

TR IBOLO GY July, %. [1 3 ]. [7, 8 ], , mm mm , 350 # 700 # 900 # 1. 1 PAN. R a = Λm, : ( ).

U (x, y ) = : K (x i- x k) K (x i- x k, y j- y l), 2. 1

( , ,

,, 1 mm,, : 250 g, 200 g, 120 g, 50 g g T, 80, , ;,, ,,,,, %, 2%, 3% , 15 d, 60 d ( )

, ( CO 2+ O 2+ N 2, ], N 2 [ 14, 15 ] O 2. ( 0. 1 ml ) ; (23 Jayasingh h atm ) (2001) [ 7 ]

A ( SPA ) Su lfo succin im idyl 62[ 3 2( 22pyridyldith io ) p rop ionam ido ]hexanoate (Su lfo2l C2SPD P) C E2m ail: w

China Academic Journal Electronic Publishing House. All rights reserved. O ct., 2005

1. 2 , N RC (1998) d m g 1

Mean bond enthalpy Standard enthalpy of formation Bond N H N N N N H O O O

, 2166 m, 4162 m,,, m 3 gs, m 3,, 5 10, 7117%, 11 4, 2813%,, m 3 gs, ;, ;,,,,,,,,

A R, H ilbert2h uang T ran sfo rm and A R M odel

(g ) A quanau tics,, , 33. 1%. O , O CH EM ICAL JOU RNAL O F CH IN ESE UN IV ERS IT IES (,,, )

Synthesis of Imines from Amines in Aliphatic Alcohols on Pd/ZrO 2 Catalyst at Ambient Conditions

Use of Site-D irected M utagenesis to Investiga te the Properties of Recom binan t H irud in-hv2

, 300 # , 26. 7% g N ac l 0. 4 g KC l g CaC l2 2H 2O g N a2s 2H 2O g N ah 2PO 4. . P indbo rg [4 ],

, E, PRO GR ESS IN GEO GRA PH Y. V o l122, N o15 Sep t1, 2003 : (2003) , 263, (0 1m ) P93511; P42616

Το άτομο του Υδρογόνου

Jour. of N o rthw est Sci2T ech U niv. of A gri. and Fo r. (N aṫ Sci. Ed. ) Sep , 1 [7 ] ,, 2 ,, 1 85% [1 4 ], [ ]

ΑΓΓΕΛΗΣ ΧΡΗΣΤΟΣ ΠΑΝΑΓΙΩΤΗΣ 6 OO ΑΓΓΕΛΙΔΗΣ ΧΑΡΙΛΑΟΣ ΧΡΗΣΤΟΣ 4 OO ΑΓΓΟΥ ΑΝΑΣΤΑΣΙΑ ΔΗΜΗΤΡΙΟΣ 6 OO ΑΔΑΜΙΔΟΥ ΕΥΑΓΓΕΛΙΑ ΑΒΡΑΑΜ 3 OO ΑΛΕΒΙΖΟΥ ΠΑΝΑΓΙΩΤΑ

Stud ies on Chem ica l Con stituen ts and M orpholog ica l Characters of the Fruits of Seven Labia tae Plan ts

Fo recasting Stock M arket Q uo tation s via Fuzzy N eu ral N etw o rk Based on T 2S M odel

Experiment on axial compressive properties of high2strength concrete column wrapped w ith CFRP

College of Life Science, Dalian Nationalities University, Dalian , PR China.

TR IBOLO GY N ov, T EER Coating L td, U K) M H 25 [4 ] ( [6 ] ). (SEM ),. V G %. PS2168

Νόµοςπεριοδικότητας του Moseley:Η χηµική συµπεριφορά (οι ιδιότητες) των στοιχείων είναι περιοδική συνάρτηση του ατοµικού τους αριθµού.


hm 2,, , hm 2, A CTA GEO GRA PH ICA S IN ICA

17 1 V o l. 17 N o CH IN ESE JOU RNAL O F COM PU TA T IONAL M ECHAN ICS February 2000 : A

:,UV IKON 810, 700 nm. DU 27Spectropho to neter 1. 1 U S2KT P

V o l122, N o13 M ay, 2003 PRO GR ESS IN GEO GRA PH Y : (2003) , : TU 984. , (Eco logy fo r evil) [1 ] (R ich Boyer), 2.

, 4, 6, 8 m in; 30%, 50%, 70%, 90% 100% 15, 30, 45, 60, s V c

Con struction and D emon stration of an Index System of Know ledge Amoun t of Po sition

ΜΕΤΑΠΤΥΧΙΑΚΗ ΕΡΕΥΝΗΤΙΚΗ ΔΙΑΤΡΙΒΗ

SUPPLEMENTARY INFORMATION

Effects of PD on IL -6- induced Growth Arrest and Term ina l D ifferen tia tion of M 1 Cells

E#ects of Drying on Bacterial Activity and Iron Formation in Acid Sulfate Soils

ΓΗ ΚΑΙ ΣΥΜΠΑΝ. Εικόνα 1. Φωτογραφία του γαλαξία μας (από αρχείο της NASA)

T he Op tim al L PM Po rtfo lio M odel of H arlow s and Its So lving M ethod

Rub isco. Rubisco. R ubisco R ubisco , R ubisco

Emulsifying Properties of Egg Yolk as a Function of Diacylglycerol Oil

Antimicrobial Ability of Limonene, a Natural and Active Monoterpene

!"!# ""$ %%"" %$" &" %" "!'! " #$!

Optimizing Microwave-assisted Extraction Process for Paprika Red Pigments Using Response Surface Methodology

Appendix B Table of Radionuclides Γ Container 1 Posting Level cm per (mci) mci

Jou rnal of M athem atical Study

1999, 17 (1): J ourna l of W uhan B otan ica l Resea rch ( ) ( ) 2, 3. (Celosia cristata L. ),

ΝΟΜΟΣ ΤΗΣ ΠΕΡΙΟ ΙΚΟΤΗΤΑΣ : Οι ιδιότητες των χηµικών στοιχείων είναι περιοδική συνάρτηση του ατοµικού τους αριθµού.

Bank A ssetgl iab ility Sheet w ith Em bedded Op tion s

Stem Character istics of W heat w ith Stem L odging and Effects of L odging on Gra in Y ield and Qual ity

(H yaluronic acid, HA ) , HA,. HA,, HA. N T G (S trep tococcus zooep id em icus J 18), 50 g

Neutralization E#ects of Acidity of Rain by Cover Plants on Slope Land

Heavier chalcogenone complexes of bismuth(iii)trihalides: Potential catalysts for acylative cleavage of cyclic ethers. Supporting Information

ΚΕΦΑΛΑΙΟ 4 ΘΕΡΜΟΦΥΣΙΚΕΣ Ι ΙΟΤΗΤΕΣ ΤΩΝ ΤΡΟΦΙΜΩΝ

V o l. 3 N o. 1 Feb EL ECTROCH EM ISTR Y ) V, ; ,,, ] [ ],, [ JW Y30S 791. ( cm 2 ), P t

P Ò±,. Ï ± ˆ ˆŒˆ Š ƒ ˆŸ. Œ ƒ Œ ˆˆ γ-š Œˆ ƒ ƒˆ 23 ŒÔ. ² μ Ê ². Í μ ²Ó Ò Í É Ö ÒÌ ² μ, É μí±, μ²óï

STUD IES ON THE GENOTOX IC ITY OF 83- ITS M AJOR M ETABOL ITE 1 HERB IC ID E AND. H eng Zhengchang 1, T O ng 2

Ι ΙΟΤΗΤΕΣ ΤΩΝ ΑΤΟΜΩΝ. Παππάς Χρήστος Επίκουρος Καθηγητής

MnZn. MnZn Ferrites with Low Loss and High Flux Density for Power Supply Transformer. Abstract:

DY NAM IC CHANGE OF EP ID ERM AL STEM CELL S IN THE WOUND HEAL ING COURSE OF D IABETIC RATSg

Preparation and Application of Amorphous Alloy Catalyst

) V o l. 40 N o. 6 : A : Q ,, W ard [ 1 ] (A v icenn ia m a rina) (K and elia cand el)

10 mm 10 mm 20 mm, 180 # 240 # 600 # 800 # # 2 mm 2 mm, TR IBOLO GY Sep, 2004

9-amino-(9-deoxy)cinchona alkaloids-derived novel chiral phase-transfer catalysts

Estimation of grain boundary segregation enthalpy and its role in stable nanocrystalline alloy design

Aluminium triflate as a Lewis acid catalyst for the ring opening of epoxides in alcohols

300071; 3. , ) E2m ail: 263. net CH EM ICAL JOU RNAL O F CH IN ESE UN IV ERS IT IES CH 2CO 2H N H H N

ΠΕΡΙΟΔΙΚΟΣ ΠΙΝΑΚΑΣ ΣΤΟΙΧΕΙΩΝ

SUPPLEMENTARY INFORMATION

TR IBOLO GY Sep, 1998 ( ) ( ) C C , , TH [1 5 ].

Design and Fabrication of Water Heater with Electromagnetic Induction Heating

Properties of Nikon i-line Glass Series

Μελέτη των μεταβολών των χρήσεων γης στο Ζαγόρι Ιωαννίνων 0

IL - 13 /IL - 18 ELISA PCR RT - PCR. IL - 13 IL - 18 mrna. 13 IL - 18 mrna IL - 13 /IL Th1 /Th2

Η ΕΠΙΔΡΑΣΗ ΤΗΣ ΑΙΘΑΝΟΛΗΣ,ΤΗΣ ΜΕΘΑΝΟΛΗΣ ΚΑΙ ΤΟΥ ΑΙΘΥΛΟΤΡΙΤΟΤΑΓΗ ΒΟΥΤΥΛΑΙΘΕΡΑ ΣΤΙΣ ΙΔΙΟΤΗΤΕΣ ΤΗΣ ΒΕΝΖΙΝΗΣ

Θωμάς ΣΑΛΟΝΙΚΙΟΣ 1, Χρήστος ΚΑΡΑΚΩΣΤΑΣ 2, Βασίλειος ΛΕΚΙΔΗΣ 2, Μίλτων ΔΗΜΟΣΘΕΝΟΥΣ 1, Τριαντάφυλλος ΜΑΚΑΡΙΟΣ 3,

Το αντικείμενο αυτό είναι χειροποίητο από 100% οικολογικό βαμβάκι, με φυτικές βαφές και φυτική κόλλα.

Fe, Cu, Zn,M n, Se I 54. 0, 9. 2, 11. 0, 66. 5, 0. 08, m ggkg, 100%, 200%, 300%

cm, ph 7 8, m 1. 3 m 1. 5 m, 1. 5 cm,, , mm

Supporting information. An unusual bifunctional Tb-MOF for highly sensing of Ba 2+ ions and remarkable selectivities of CO 2 /N 2 and CO 2 /CH 4

ΠΑΝΕΠΙΣΤΗΜΙΟ ΘΕΣΣΑΛΙΑΣ

Αλληλεπίδραση ακτίνων-χ με την ύλη

Ελαφρές κυψελωτές πλάκες - ένα νέο προϊόν για την επιπλοποιία και ξυλουργική. ΒΑΣΙΛΕΙΟΥ ΒΑΣΙΛΕΙΟΣ και ΜΠΑΡΜΠΟΥΤΗΣ ΙΩΑΝΝΗΣ

o l. 26 N o Jou rnal of N an jing In stitu te of M eteo ro logy Feb. 2003

CHEM ICAL JOU RNAL O F CH IN ESE UN IV ERS IT IES 10 15

(α) Στη στήλη «Θέσεις 1993» ο αριθμός «36» αντικαθίσταται. (β) Στη στήλη των επεξηγήσεων αναγράφεται η ακόλουθη

Reaction of a Platinum Electrode for the Measurement of Redox Potential of Paddy Soil

MULTILAYER CHIP VARISTOR JMV S & E Series: (SMD Surge Protection)

ΕΘΝΙΚΟ ΜΕΤΣΟΒΙΟ ΠΟΛΥΤΕΧΝΕΙΟ

BAY ES IAN INFERENCE FO R CO INTEGRATED SY STEM S

Transcript:

14 2 V o l. 14,N o. 2 2000 4 JOU RNAL O F M OL ECULA R CA TAL YS IS (CH INA ) A p r. 2000 : 100123555 (2000) 0220111208 WO 3gZrO 2 - g. ZrO 2,,, 1) (, 130022) : ZrO 2 WO 3gZrO 2 SO 4 2- gzro 2 M oo 3gZrO 2, XRD D TA 2 T G H 22T PR N H 32T PD, ZrO 2 T 2, Zr (OH ) 4, ZrO 2 T 2,,, ZrO 2, 2, Zr (OH ) 4,,, C 5 C 7, C 8 0 : WO 3gZrO 2 ; ZrO 2; 2 : O 643. 32 : A (M ) W O 3g ZrO 2 2 ( 100% ) C 8 0 (> 80% ) [1 ]. (Β2 SO 4 2- [2 ]. gzro 2 ),, [3 ]., ZrO 2 W O 3gZrO 2, ZrO 2 [4 ]., ( Zr (OH ) 4 ) ( SO 4 2- ), Zr (OH ) 4 SO 4 2- M xo y, ZrO 2 T (T etragonal) 2 T 2 M (M onoclin ic) 2, T 2 [ 5 ], (SCFD T ) ZrO 2 T 2 ( 700 ). ZrO 2, SO 4 2- W O 3 M oo 3,, T 2 ZrO 2 1 1. 1 1. 1. 1 ZrO 2 [5 ] 500 ml (0. 17 mo l L - 1 ) ZrOC l2, (28% ), ph 10. 30, Zr (OH ) 4 2 h,, C l - ( 0. 1 mo l. L - 1 A gno 3 ), 500 ml, Zr (OH ) 4 (0. 043 mm ),, 400 ml,,, : 1999210218; : 1999212227. : ( 29792076). :,, 38,, 1)

112 14 (T = 533 K, p = 7. 5 M Pa), 0. 5 h,,,,, ZrO 2 ( ZO ). 1. 1. 2 W O 3gZO SO 4 2- gzo M oo 3gZO ZrO 2 [ (N H 4) 5H 5 [H 2 (W O 4) 6 ] H 2O ] 0. 5 mo l H 2SO 4 [ (N H 4) 6M o 7O 24 4H 2O ], 368 K 24 h, 4 h, ZrO 2 W O 3gZO SO 4 2- gzo M oo 3gZO 3 W ZO SZO M ZO. Zr (OH ) 4 [1 ],, Zr (OH ) 4 W O 3gZrO 2 SO 4 2- IM 2W IM 2S IM 2M. 1. 2 gzro 2 M oo 3gZrO 2 JEQL JXA 2840 (SEM ), 20 kv. BET XRD, R igaku D gm ax2g X2 (CuKΑg, N i ), 2Η 10 80, X 40 kv 20 ma. R igaku 2 (T G2D TA ), 10 Kgm in, 50 ml gm in. ( T PR ), W O 3 SO 4 2- M oo 3 0. 1000 g 6 mm, ( 30 ml gm in), 923 K 1 h,, (5%H 2), (10 gm in) 1 073 K,, N H 32T PD,, 0. 1000 g 6 mm, ( 30 ml gm in), 923 K, 1 h, (288 K) 1 h, 100 m in,,, H amm ett, (pkbh + = - 13. 16) 2, 42 (pkbh + = - 13. 75) 2, 42 (pkbh + = - 14. 52) 1, 3, 52 (pkbh + = - 16. 12), 1. 3 [1 ]. 10 mm, 20 cm. 0. 40 0. 20 mm 2 g, 573 K 3 h, 353 K,, ( g 8), (L SHV ) 2,, 1. 4 M Pa. 103, 3 mm, 10 m, 6201 Β, Β 2, 200 K, GC2 112, ( 50 m, 0. 25 mm, SE254). 303 K, 473 K, 5 Kgm in, (V G2Q uattro H P25890A ) 2 2. 1 2. 1. 1 1 SEM, Zr (OH ) 4 (393 K) (A ),, ; 923 K, (C) ; ZrO 2 (B ),,, 2, Zr (OH ) 4 (a) ; ZrO 2 T 2 (b)., (T = 533 K, P = 7. 5 M Pa) Zr (OH ) 4 T 2, ZrO 2 923 K, M 2 (c), Zr (OH ) 4 923 K, ( ). Zr (OH ) 4 ( ) 923 K, T 2 (d). T 2 ZrO 2,, T 2 ( 2 e g).

2 : WO 3gZrO 2 2 g. 113 1 SEM F ig. 1 SEM im ages of different carriers (A ) Zr (OH ) 4 ( 3 000); (B ) superfine ZrO 2 ( 10 000); (C) ZrO 2 (923 K) ( 1 000) 2 XRD F ig. 2 XRD patterns of M 2ZrO 2 and T 2ZrO 2 samp les, W O 3gZrO 2 W O 3 0. 189 0. 265 g, T 2 ZrO 2 79. 2% 82. 6% ( 1).,, W O 3, ZrO 2 M 2, T 2 SZO M ZO, 923 K 1 023 K, SZO, T 2 ZrO 2 75. 7% 40. 7% ; M ZO, T 2 ZrO 2 77. 7% 70. 7%., W ZO T 2 SZO M ZO 2. 1. 2 1. ZrO 2 275 m 2 g - 1, [ 6 ] (923 K), ZrO 2 M 2, 44 m 2 g - 1, Zr (OH ) 4 (923 K) ZrO 2 36 m 2 g - 1 ZrO 2 W ZO SZO M ZO, IM,. ZrO 2,, ( ) ZrO 2 T 2 ;,, ZrO 2, ZrO 2 W ZO, W O 3 0. 189 g W O 3g g ZrO 2 0. 265 g W O 3 g ZrO 2, 195 216 m 2 g - 1, T 2 ZrO 2, W ZO SZO M ZO,,, T 2 ZrO 2, SZO (1 023 K),, T 2 ZrO 2 40. 7%, 48 m 2 g - 1.

114 14 1 T able 1 Physicochem ical p roperties and catalytic activities of catalysts Com po sition Calcination T 2ZrO 2 Specific A cid amound A cid Initial Catalyst tem perature surface area (283 923 K) strength activity (g g ZrO 2) (K) (% ) (m 2 g) (mmo l N H 3 g) (pkbh ) (% ) ZO 0-85. 2 275 - - - - ZO 0 923 7. 8 44 1. 0 - - - W ZO 0. 189 923 79. 0 195 9. 87-16. 12 100 65. 00 0. 227 923 81. 6 207 11. 7-16. 12 100 63. 84 0. 265 923 82. 6 216 12. 1-16. 12 100 61. 56 0. 265 973-210 9. 9-16. 12 100 61. 34 0. 265 1 023 78. 3 186 6. 43-16. 12 100 59. 46 SZO 0. 5 mo l H 2SO 4 923 75. 7 154 8. 3-14. 52 99. 5 69. 40 0. 5 mo l H 2SO 4 1 023 40. 7 48 3. 1-14. 52 71. 3 84. 87 M ZO 0. 115 923 77. 7 173 8. 7-13. 75 92. 5 83. 89 0. 115 1 023 70. 7 140 7. 2-13. 15 80. 0 85. 00 C 8 (% ) 2. 1. 3 2 2 (T G2D TA ) ( 3), ZrO 2, 3 T G2D TA F ig. 3 T G2D TA curves of samp les 423 K, 7. 7% ( 3 (A ) T G (ZO ) ), ; 473 K 773 K,, 5. 8%, ZrO 2 D TA ( 3 (A ) D TA (ZO ) ), 373 K 723 K,. Zr (OH ) 4 D TA ( 3 (A ) ), 633 K 713 K, T 2 ZrO 2 M 2 ZrO 2,, ZrO 2, ZrO 2 ( 3 (A ) W ZO ), 473 K,, ; 473 K 793 K,, ZrO 2, 578 K, Zr (OH ) 4, 90 K, ZrO 2 (T 2 ) SZO, 833 K,, M ZO W ZO, 573 K, Zr (OH ) 4 IM 2M, D TA IM 2W 823 K

2 : WO 3gZrO 2 2 g. 115 ZrO 2 T 2 M oo 3 Zr (M oo 4) 2, M o- O - Zr 2. 2 2. 2. 1 H 22T PR ( 4), Zr (OH ) 4 ( 4 a), 873 K 4 H 22T PR F ig. 4 H 22T PR p rofiles of samp les a: Zr (OH ) 4; c: ZO (923 K); d: IM 2W (0. 227, 923 K); e: W ZO (0. 189, 923 K); f: W ZO (0. 227, 923 K); g: W ZO (0. 265, 923 K); h: W ZO (0. 265, 1 023 K); i: SZO (1 023 K); j: SZO (1 023 K); k: M ZO (0. 115, 923 K); l: M ZO (0. 115, 1 023 K) 1 073 K ( 1 053 K ), [7 ]. ZrO 2, 673 K 1 123 K (c),,, Zr (OH ) 4 IM 2W, 773 1 073 K 2 ( 4 (A ) d). (770 870 K) W O 3 ; W (g ) ZrO 2 W ZO (923 K), ( 4 (A ) e f),, W O 3, 0. 265 g W O 3 g ZrO 2 ( 4 (A ) g), W O 3,, ( 4 (A ) g h), W O 3 XRD W O 3, 2 ; Zr (OH ) 4, 0. 227 g W O 3 g ZrO 2 ( 1 023 K ), XRD W O 3, ZrO 2,. T 2 ZrO 2 W ZO, IM 2W,, W ZO, W O 3 SZO ( 4 (B ) i j), 710 K 1 000 K, SO 2 [6, 7 ]. 923 K, SZO (1 073 K) ( 4 (B ) j),, 1 000 K M ZO W O 3gZrO 2, 2, 773 K M oo 3, W O 3, 860 K M o (g )., M oo 3, 2. 2. 2 N H 32T PD,, 5 ZrO 2 ( 533 K ),

116 14 420 K ( 5 b) ; 923 K, ( 5 c). T 2 ZrO 2 5 N H 32T PD F ig. 5 N H 32T PD p rofiles of samp les b: ZO ; c: ZO (923 K); d: IM 2W (0. 227, 923 K); e: W ZO (0. 189, 923 K); f: W ZO (0. 227, 923 K); g: W ZO (0. 265, 923 K); h: W ZO (0. 265, 1 023 K); i: SZO (923 K); j: SZO (1 023 K); k: M ZO (0. 115, 923 K); l: M ZO (0. 115, 1 023 K) ZrO 2 W ZO, (383 923 K ) IM 2W ( 1), W ZO (0. 265 g W O 3 g ZrO 2), T 2ZrO 2, SZO, SZO (1 023 K ), T 2ZrO 2% 40. 7%,, SZO (923 K) IM 2S (923 K), M ZO, W ZO SZO, H amm ett 1. ZrO 2, IM, IM 2W (1 023 K), W O 3, ; W ZO (1 023 K ), W O 3, 1, 3, 52, W ZO,, 0. 115 g M oo 3 g ZrO 2 (923 K) IM 2M, 2. 3 2. 3. 1, C 4 =, (, % ) : 1. 46 12 + 9. 97 82. 96 22 0. 65 4. 51 22 0. 50 88. 93 11. 12 C 4 0 gc 4 = 8. 0; ic 4 0 gc 4 = = 7. 4 923 K, 2 2, W ZO, 0. 189 0. 265 g W O 3 g ZrO 2,, ZrO 2,, IM 2W, 0. 189 0. 227 g W O 3 g ZrO 2, ; 0. 265 g W O 3g g ZrO 2, IM 2W, 0. 227 g W O 3 g ZrO 2,, 60 m in, W ZO IM 2W SZO IM 2S M ZO IM 2S,, 6. W ZO, 0. 265 g W O 3 g ZrO 2 973 K 1 023 K,,

118 14 W O 3gZrO 2 ( ), W O 3, 3. 3, ZrO 2 C 5 C 7, C 8 0 [1 ],,,. WO 3gZrO 2 2 ( I). W [J ]., 2000, 21 (3) [2 ] Co rm a A, M artinez A. Chem istry, Catalysts and P rocesses fo r Isoparaffin2o lefin A lkylation: A ctual Situation and Future T rend [J ]. Catal R ev2s ci E ng, 1993, 35 (4): 483 [3 ],,,. WO 3gZrO 2 2 ( II). [J ]., [4 ] A rata K. P reparation of Superacid by M etal O xides fo r R eaction of Butanes and Peutanes[J ]. A pp l Catal A General, 1996, 146: 3 [5 ],,,. [J ]., 1995, 11 (1): 46 [6 ] Sayari A, D icko A. T he State of P latinum in P t on Sulfated Zirconia Supperacid Catalysts [J ]. 1994, 146: 561 J Catal, [7 ] M o rterra C, Cerrato G. P latinum 2P romo ted and U np rom eted Sulfated Zirconia Catalysts P repared by a O ne2step A erogel P rocedure[j ]. J Catal, 1997, 165: 172 Study of the A lkylation of Isobutane with n-butenes over WO 3gZrO 2 Strong Solid Ac id g. Effect of Superf ine ZrO 2 Carr ier on Physico-chem ical Properties and Catalytic Behav iours of the Catalyst SUN W en2dong, ZHAO Zhen2bo, L IU yu, W U Yue (Chang chun Institu te of A pp lied Chem istry. T he Ch inese A cad em y of S ciences, C hang chun 130022) Abstract: A series of W O 3gZrO 2, SO 4 2- gzro 2, and M oo 3gZrO 2 strong so lid acids w ere p repared. T heir crystal structu re, su rface state and acidity w ere determ ined by XRD, T G2D TA, H 22T PR and N H 32T PD. T he resu lts revealed that superfine ZrO 2 m ain ly ex ists in tetragonal phase, how ever, the amoun t of T 2 phase ZrO 2 decreases, bu t it has a larger specific area, acid amoun ts and loading capacity as compared w ith catalyst p repared by traditional app roach u sing Zr (OH ) 4 as carrier. A cid strength of the catalyst increases w ith the calcination temperatu re, w h ich indicates that its su rface state has changed sign ifican tly. T he isobu tane alkylation of n2bu tene catalysed by variou s catalysts has been investigated. Experim en tal resu lts indicated that better o lefin conversion s are reached than that over catalyst p repared by traditional Zr (OH ) 4 as carrierṡ C 8 0 selectivity decreases due to the fo rm ation of mo re crack ing p roducts of C 5 C 7. Key words: W O 3gZrO 2; Strong so lid acid; Superfine ZrO 2; Isobu tanegbutene alkylation