The method comprises forming a gel, or suspension, by admixing: one or more transition metal cyano containing anionic complex solutions wherein at least one solution contains a reducible transition metal, and wherein one or more of {TAIL ~ these solutions} optionally contains a nonreducible metal, with {HEAD ~ one or more solutions} containing polyvalent metal cations 
The method comprises forming a gel , or suspension , by admixing : one or more transition metal cyano containing anionic complex solutions wherein at least one solution contains a reducible transition metal , and wherein one or more of { TAIL ~ these solutions } optionally contains a nonreducible metal , with { HEAD ~ one or more solutions } containing polyvalent metal cations
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