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Submitted on 1 Jan 1981
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NOVEL PROPERTIES OF AMORPHOUS TRANSITION METAL SULFIDES
R. Chianelli
To cite this version:
R. Chianelli. NOVEL PROPERTIES OF AMORPHOUS TRANSITION METAL SULFIDES. Jour-
nal de Physique Colloques, 1981, 42 (C4), pp.C4-1172-C4-1172. �10.1051/jphyscol:19814248�. �jpa-
00220880�
JOURNAL DE PHYSIQUE
CoZZoque C4, suppZ6ment au nOIO, Tome 42, octobre 1981 page C4-1172
NOVEL PROPERTIES OF AMORPHOUS T R A N S I T I O N METAL S U L F I D E S
R. C h i a n e l l i
E a o n Research & EngineerYing Co., Linden, NJ, U.S.A.
A b s t r a c t . - C r y s t a l l i n e chalcogenides o f t r a n s i t i o n m e t a l s of groups IV-V1 B ( T i , Z r , Hf, V, Nb, Ta, MO, W) o c c u r w i t h l a y e r - l i k e s t r u c t u r e s f o r t h e MX, s t o i c h i o m e t r y and w i t h c h a i n - l i k e s t r u c t u r e s f o r t h e MX, s t o i c h i o m e t r y . Recently, amorphous analogs of t h e s e compounds have been o b t a i n e d by low temperature p r e c i p i t a t i o n from non-aqueous s o l u t i o n s a n d / o r by chemical reac- t i o n and thermal decomposition of chalcogen c o n t a i n i n g s a l t s . The p r o p e r t i e s o f t h e s e amorphous s u l f i d e s a r e o f t e n s t r i k i n g l y d i f f e r e n t from t h e i r crys- t a l l i n e c o u n t e r p a r t s where they e x i s t . These novel p r o p e r t i e s make t h e s e m a t e r i a l s p o t e n t i a l l y u s e f u l i n energy r e l a t e d a r e a s . I n t h i s p a p e r we d i s c u s s
t h e p r e p a r a t i o n , c h a r a c t e r i z a t i o n , s t r u c t u r e and p r o p e r t i e s of t h i s c l a s s of m a t e r i a l s / l / . We s h a l l a l s o d i s c u s s e l e c t r o c h e m i c a l s t u d i e s which have i n d i - c a t e d t h a t amorphous MoS3 i s an a t t r a c t i v e e l e c t r o d e m a t e r i a l f o r high energy d e n s i t y secondary b a t t e r y systems. Experimental r e s u l t s of amorphous L i p o S , ( 0
5
X ( 4) u s i n g X-ray RDF, EXAFS, XPS, and magnetic s u s c e p t i b i l i t y measure- ments w i l l be p r e s e n t e d . Mechanism of Li i n t e r c a l a t i o n i n t o MoS3 w i l l bed i s c u s s e d .
Reference
/ l / Liang, K.S., Cramer, S.P., Johnston, D . C . , Chang, C.H., Jacobson, A.J., de N e u f v i l l e , J . P . and C h i a n e l l i , R.R., J. Non-Cryst. Solids
2
(1980) 345.Article published online by EDP Sciences and available at http://dx.doi.org/10.1051/jphyscol:19814248
