S. No

Cr content (x)

d (nm)

a (Å)

ρx (g/cc)

ρb (g/cc)

%P

S (m2/g)

1

x = 0.0

75

8.3200

5.410

4.46

17.4

17.7

2

x = 0.1

56

8.3545

5.328

3.29

38.2

32.6

3

x = 0.2

57

8.3524

5.332

3.27

38.6

32.2

4

x = 0.3

62

8.3624

5.304

2.73

48.5

35.5

5

x = 0.4

65

8.3621

5.296

3.38

36.1

27.3

6

x = 0.5

64

8.3604

5.288

3.40

35.7

27.6