Zinc-Graphite

The U S. EPA is funding research at Ionedge Corporation, Fort Collins, Colorado, to develop a process for zinc-graphite and zinc-cadmium alloy dry plating as environmentally safer alternatives to cadmium electroplating in cyanide baths. Successful development of these technique could lead to a method which would potentially eliminate the environmental and occupational hazards associated with cadmium electroplating. 

ZnO displays similar redox and alloying chemistry to the tin oxides on Li insertion [353]. Therefore, it may be an interesting network modifier for tin oxides. Also, ZnSnOs was proposed as a new anode material for lithium-ion batteries [354]. It was prepared as the amorphous product by pyrolysis of ZnSn(OH)6. The reversible capacity of the ZnSn03 electrode was found to be more than 0.8 Ah/g. Zhao and Cao [356] studied antimony-zinc alloy as a potential material for such batteries. Also, zinc-graphite composite was investigated [357] as a candidate for an electrode in lithium-ion batteries. Zinc parhcles were deposited mainly onto graphite surfaces. Also, zinc-polyaniline batteries were developed [358]. The authors examined the parameters that affect the life cycle of such batteries. They found that Zn passivahon is the main factor of the life cycle of zinc-polyaniline batteries. In recent times [359], zinc-poly(anihne-co-o-aminophenol) rechargeable battery was also studied. Other types of batteries based on zinc were of some interest [360]. 

Zinc-Graphite, Zn-Gr (1). This metal is obtained by reaction of anhydDus ZnCl, with potassium-graphite suspended in THF (exothermic reaction). 

REFORMATSKY REACTION Chlorotrime-thylsilane. Tri-n-butyltinlilhium-Diethylal-uminum chloride-Zinc. Zinc-Graphite. 

Boidrini, G. P., Savoia, D., Tagiiavini, E., Trombini, C., Umani-Ronchi, A. Active metais from potassium-graphite. Zinc-graphite promoted synthesis of 3-hydroxy esters, homoaiiyiic aicohois and a-methyiene-y-butyroiactones. J. Org. Chem. 1983,48,4108-4111. 

An assortment of batteries. In front of the lead-acid automobile battery are, from left to right, three types of rechargeable nickel-cadmium batteries, three types of nonrechargeable alkaline batteries, and a zinc-graphite dry cell (also nonrechargeable). 

Table 2.69 Summary of Mechanical Properties of Composite (5) Zinc and Zinc-Graphite...

The zinc/graphite composite bath, which is based on a modification of a conventional bright acid chloride was developed by a plating process supplier, working with the Ford Motor Company. The deposit resembles a black phosphate coating and is specified by some car manufacturers for black fasteners used under the hood. 

Zinc/Graphite. Transition metal lamellar compounds of graphite can be prepared by utilizing the reducing properties of potassium-graphite (CgK) towards transition metal salts [115] (see also [116]) ... 

Zinc-graphite Zn/Gr prepared in this way, was used in several Reformatsky reactions as well as in Zn-Barbier reactions [116] in which allyl and crotyl bromides were involved. Products were obtained in excellent yields ... 

Zinc/Graphite, Zinc/graphite, Zn/Gr, prepared from CgK and anhydrous ZnCl2 in refluxing THF under argon has been used successfully in many reactions in which usually normal zinc is applied [48]. 

Cadmium, copper, iron, lead, zinc Graphite furnace AAS - [60]... 

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