Thermal effects during the electrolytic charging of deuterium in the palladium lattice

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Fusion Technology; (United States)

OSTI ID:5522692

Giordano, N; Arico, A S; Antonucci, V ^[1]

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1. Inst. for Transformation and Storage of Energy, National Council of Research Via S. Lucia sopra Contesse 39, 98126 Pistinuna, Messina (IT)

In this paper the formation of palladium deuteride during the electrolysis of heavy water is analyzed. This process is accompanied by thermal effects, such as local overheating, which can induce restructuring of the electrodes. The overheating depends on the size of the palladium-deuterium (Pd-D) clusters and the time scale for heat conduction. With the radius of the octahedral site occupied by deuterium in the Pd-D face-centered-cubic (fcc) lattice being similar or greater than the penetration depth of the temperature field for a single reaction of palladium with deuterium, Ruckenstein and Petty's equation has been applied in the calculation of the local overheating. A value of {approximately} 2350{degrees} C for the maximum average temperature rise has been calculated for the Pd-D cluster formation. Similar calculations for the TiD{sub 2} fcc structure show that overheating probably depends also on the kinetics of D{sub 2} absorption. The presence of these phenomena may play some role in the reproducibility of cold fusion experiments.

• OSTI ID: 5522692
• Journal Information: Fusion Technology; (United States), Vol. 20:1; ISSN 0748-1896
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
42 ENGINEERING
COLD FUSION
EXPERIMENT PLANNING
DEUTERON REACTIONS
TEMPERATURE EFFECTS
HEAVY WATER
ELECTROLYSIS
PALLADIUM COMPOUNDS
CALCULATION METHODS
CHEMICAL REACTION KINETICS
DEUTERIDES
FCC LATTICES
PENETRATION DEPTH
TITANIUM COMPOUNDS
CHARGED-PARTICLE REACTIONS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
CUBIC LATTICES
DEUTERIUM COMPOUNDS
HYDROGEN COMPOUNDS
KINETICS
LYSIS
NUCLEAR REACTIONS
OXYGEN COMPOUNDS
PLANNING
REACTION KINETICS
TRANSITION ELEMENT COMPOUNDS
WATER
700360* - Fusion Reactions- (1992-)
400400 - Electrochemistry
420400 - Engineering- Heat Transfer & Fluid Flow