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Table 3 X-ray spectral parameters and the phase composition of SCWA-UONI

From: Nanostructured Polyphase Catalysts Based on the Solid Component of Welding Aerosol for Ozone Decomposition

Phase

Freshly prepared sample

Modified sample

 

2θ, °

I N

d, Å

2θ, °

I N

d, Å

   

Exp.

Ref.

  

Exp.

Ref.

(Mn,Fe)(Cr,V)2O4

18.055

54

4.909

4.89

18.068

144

4.906

7.89

29.740

131

3.001

2.99

29.797

299

2.996

2.99

–

–

–

–

42.425

168

2.129

2.12

56.066

160

1.639

1.63

56.130

310

1.637

1.639

61.823

95

1.499

1.50

61.806

257

1.50

1.50

Fe3O4 (magnetite)

35.465

177

2.529

2.53

35.418

726

2.532

2.53

42.880

89

2.107

2.10

42.899

206

2.106

2.10

–

–

–

–

56.837

134

1.619

1.61

62.104

111

1.486

1.48

62.403

316

1.487

1.485

Fe2O3 (goethite, hematite)

24.103

44

3.689

3.68

–

–

–

–

35.844

87

2.503

2.51

35.961

174

2.495

2.51

62.134

106

1.493

1.485

62.137

266

1.493

1.485

β-Fe2O3⋅Н2О (agacansite)

39.243

31

2.293

2.29

39.502

25

2.280

2.29

43.055

92

2.099

2.10

43.112

213

2.097

2.10

Mn3O4

28.749

66

3.103

3.08

–

–

–

–

42.664

88

2.117

2.10

42.634

215

2.119

2.10

62.689

103

1.481

1.48

62.557

339

1.484

1.48

CaF2

28.282

357

3.153

3.15

28.319

1000

3.149

3.15

47.023

317

1.931

1.93

47.075

751

1.929

1.93

68.663

31

1.366

1.365

68.546

54

1.368

1.365

87.361

55

1.115

1.115

87.303

69

1.116

1.115

K2CO3

31.768

208

2.815

2.80

Not detected

37.831

141

2.376

2.37

Not detected

Na2CO3⋅Н2О

40.628

95

2.220

2.24

Not detected

K2CrO4

29.176

40

3.058

3.07

Not detected

53.028

23

1.726

1.72

Not detected

57.110

39

1.612

1.61

Not detected

MgSiO3

30.844

109

2.897

2.908

30.672

94

2.912

2.908

54.978

27

1.669

1.66

55.266

57

1.660

1.66

68.914

16

1.361

1.359

68.852

68

1.362

1.359

Fe3O4;

Mn3O4;

K2CrO4;

Na2CO3

30.073

1000

2.969

2.97

30.046

268

2.972

2.97

   

2.98

   

2.98

   

2.96

   

2.96

   

2.96

   

2.96

K2Cr2O7;

Mn3O4

31.224

239

2.862

2.87

31.090

64

2.874

2.87

   

2.87

   

2.87

K2CO3;

β-Fe2O3⋅Н2О

34.090

255

2.628

2.61

33.914

58

2.671

2.61

   

2.64

   

2.64

(Mn,Fe)(Cr,V)2O4;

β-Fe2O3⋅Н2О;

MgSiO3

35.050

279

2.558

2.55

35.031

775

2.559

2.55

   

2.55

   

2.55

   

2.551

   

2.551

β-Fe2O3⋅Н2О;

Mn3O4;

K2CrO4;

NaF

38.836

184

2.317

2.29

38.854

800

2.316

2.29

   

2.36

   

2.36

   

2.32

   

2.32

   

2.32

   

2.32

β-Fe2O3⋅Н2О;

CaF2;

MgSiO3

55.760

130

1.647

1.648

55.941

340

1.642

1.648

   

1.647

   

1.647

   

1.642

   

1.642

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