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Table 1 The lattice parameters and CSR of the lepidocrocite, goethite, and spinel ferrite phases

From: Characteristic of the Nanoparticles Formed on the Carbon Steel Surface Contacting with 3d-Metal Water Salt Solutions in the Open-Air System

Water salt solutions

Mineral phases formed on the steel surface contacting with water salt solutions

γ-FeOOH

α-FeOOH

MeFe2O4

The lattice parameters, nm

The particle size, nm

The lattice parameters, nm

The particle size, nm

The lattice parameters, nm

The particle size, nm

CoCl2

a—0.3865

b—1.2400

c—0.3061

V—0.1467

17.6

a—0.4611

b—1.0178

c—0.2998

V—0.1407

16.6

a—0.8293

V—0.5703

18.7

NiCl2

a—0.3855

b—1.2681

c—0.3024

V—0.1478

18.6

a—0.4648

b—0.9975

c—0.3029

V—0.1404

18.4

a—0.8397

V—0.5920

16.8

ZnCl2

a—0.3876

b—1.2638

c—0.3067

V—0.1502

21.6

The phase is absent

a—0.8395

V—0.5917

16.4

CuCl2

a—0.3871

b—1.2601

c—0.3054

V—0.1490

12.4

a—0.4668

b—0.9740

c—0.3043

V—0.1384

18.32

a—0.8394

V—0.5914

18.5

CoSO4

a—0.3866

b—1.2501

c—0.3059

V—0.1478

20.1

a—0.4629 b—1.0854 c—0.2991 V—0.1503

14.8

a—0.8299

V—0.5716

15.9

NiSO4

a—0.3876

b—1.2546

c—0.3047

V—0.1482

13.7

a—0.4630

b—0.9969

c—0.3016

V—0.1392

14.53

a—0.8370

V—0.5864

24.8

ZnSO4

a—0.3858

b—1.2692

c—0.3062

V—0.1499

21.7

a—0.4626

b—1.0106

c—0.3013

V—0.1408

16.2

a—0.8404

V—0.5936

19.1

CuSO4

a—0.3875

b—1.2565

c—0.3058

V—0.1489

13.3

a—0.4504

b—1.1904

c—0.2993

V—0.1605

13.5

a—0.8377

V—0.5878

24.7

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