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báo cáo nghiên cứu các đặc trưng hủy positron trên các mẫu zeolite được tổng hợp trong một số điều kiện khác nhau

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4d]-99-=44Dm23BN._H4_`:?J-07?2;<:?J-07?2-6c0.G?0.m-3-`2Z^00-2.Y
;;;-#:;1<#=#=4;H#I<
]-!-N6t{l3k)f$%%
3%.
0 1 2 3 4 5
0

30
60



s

z

{

|

}
.m-3-`2Z^00-2.w.y
Dm23BN.6‚w-y
0 1 2 3 4 5
0
6
120


τ
1

τ
z

τ
{


τ
|

τ
}
.m-3-`2Z^00-2.w.y
.m-3-`2J123w2Jy
{Y'
23
;;;-#:;1<#=#=4;H#I<
]-!-N6t{l3k)f$%%
3%.
®_H?J-07?2
¯ ƒ69W0-`„
-1 0 1 2 3 4 5 6
0
2
4
6
8
10
12
14
Ageing [h]
Average Lifetime [ns]
0
20
40
60

80
100
Diffraction intensity [%]

D
m
2
3

B
N

2
.
-
ƒ
6

9
W

w
-
y
.m-3-`2J12307623hn2.w2Jy
.m-3-`2Z^00-2.w.y
4d]-98-.m-3-`2J12307623hn2.;<4Dm23BN2 ƒ69W0-`„2.DcN0.<c4_`0.m-3-`2Z^00-2.Y
{Y'

SJ6H3-\c2.`2.4.t230.m-3-`2

J12307623hn2.Z 0‰230.m-3-`2
Z^00-2.E0.P /27°4.?0504\4=4
ci623`H4\]4=407W230.=-;U
Bo2..n2.ci6xEs;<zY

.Da23:.=:„)E4Dm23BN2 ƒ69W
4.Šh±0Bj60‰23Z 0.m-3-`2Z^00-2.
@<{3-m0Da23b23;,-4=40-2.0.P
J-@-4`@-0Grsh±0Bj6.n2.0.<2.Y

.Da23:.=:E.n2.\2.Z^00-2.
4.ŠBDI40.P /2J`60.m-3-`2Z^00-2.
{3-mY
}
s
Y •sxx
a i i
I
τ τ
=

24
;;;-#:;1<#=#=4;H#I<
]-!-N6t{l3k)f$%%
3%.
@g]-8-†=2Z>2.@l7l234_`4=4ci6J-@-4`@-0Grsb23;,-0.<2.:.j20.m-3-`2J123‘
{
;<‘
|
0.G?cU.n2.`?r

@L76:
{Y'
i6

{
w2Jy 
{
w2cy ‘
|
w2Jy 
|
w2cy
x sE|‹š xEz{s |E|– xE||š
s sE–{š xEz|™ ‹E}‹ xE}‹‹
z sE–š‹ xEz}| }E™š xE}s‹
{ sE–šz xEz}| }Esš xE|šz
| zEz–™ xE{xš ‹E}x xE}‹}
} sE{x} xEzsx {E–z xE|xz
†=2Z>2.07623hn2.v

w‘
{
yv2¢c07?23;¥233-=07oxE}x
Ÿ xE}– 2c BDm23 Z>2. 4=4 Ze2. he2 07?23
J-@-4`@-0GrsY

w‘
|
yv0Da23b23;,-3-=07oBDm23
Z>2.s2c4_`4=4B-Pc3-`?4_`4=4Ze2.E2e2

4t0.P0.<2.:.j22<H.6‚;,-4=4B-Pc3-`?Y
3
R = 0,251 nm
4
R = 0,50 nm
4d]-9]-/0.•23Ze2.;<4=4280Ze2.4_`4560784u
25
;-CD+E<F#AC;D##=4G

.Da23:.=:.6‚:?J07-?2@<4U234M /6d6\4.?;-/423 e24b64560784EJ`-.€23;<BO4t2 Q64U2307n2.23 e24b607e2;f0@-/691:EBC4h-/0
07e2FG?@-0GY

Ob23LM23:.Da23:.=::?J-07?22.DcN04U234M /6d6\23 e24b607W230.=-4.6HP2:.`45607844_`FG?@-0G0g07W230.=-;UBo2..n2.J`230-2.
0.PY

+,-L\-0.m-3-`2J123L<-3•c}0.<2.:.j24¥234Dm23BN.6‚0Da23b23E:?J-07?2:.\2=2.BDI40>2.4.504_`4560784;<:.X2h1Z.U233-`20SL?
he207?234560784J-@-4`@-0GrsY

D`7`2.f2Bo2.h`2Bj6;QJS0•20W-4_`4=44.500W?cjche207?23Z.62345607844_`J-@-4`@-0Grs;<JS.6‚;,-0.<2.:.j20.m-3-`2J123L<-07e2
07W230.=-;UBo2..n2.Y

?;,-.`-:.Da23:.=:„);<E:.[0.m-3-`2J123:?J-07?22.WH.a207?23;-/4B=2.3-=07W230.=-4.6HP2:.`0g;UBo2..n2.J`230-2.0.P
4_`J-@-4`@-0GrsYt0.PZ^0@6f27¢230.m-3-`2Z^00-2.\2..D]232 Q6B^2BNZ^00-2.4_`0-2.0.PJ-@-4`@-0GrsY

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