NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 31 of 15738
Hydrogen quantum yields in the 360 nm photolysis of Eu/2+/ solutions and their relationship to photochemical fuel formation
External Online Source: doi:10.1016/0038-092X(77)90100-1
Author and Affiliation:
Ryason, P. R.(California Institute of Technology, Jet Propulsion Laboratory, Pasadena, Calif., United States)
Abstract: Water decomposition by a cyclic photoredox process is discussed in general terms. Thermodynamics determines the wavelength of the charge-transfer band corresponding to electron transfer to or from water of hydration of a cation. These relationships indicate that it is unlikely that a photoreduction reaction resulting in water decomposition will occur in the sea-level solar range of wavelengths. Such is not the case for photooxidation, and an example is known: the photolysis of Eu(2+) in aqueous solution. Hydrogen quantum yields have been determined for this reaction. They are sufficiently high (about 0.3) as to offer encourangement for the further exploration of photoredox reactions as a means of solar energy conversion.
Publication Date: Jan 01, 1977
Document ID:
19770067351
(Acquired Dec 01, 1995)
Accession Number: 77A50203
Subject Category: ENERGY PRODUCTION AND CONVERSION
Document Type: Journal Article
Publication Information: Solar Energy; 19; 5, 19; 1977
Publisher Information: United Kingdom
Contract/Grant/Task Num: NAS7-100
Financial Sponsor: NASA; United States
Organization Source: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ENERGY CONVERSION EFFICIENCY; EUROPIUM; HYDROGEN PRODUCTION; PHOTOLYSIS; SOLAR ENERGY CONVERSION; AQUEOUS SOLUTIONS; CHARGE TRANSFER; CHROMIUM; HYDROGEN FUELS; PHOTOOXIDATION; SUNLIGHT; WATER SPLITTING
Imprint And Other Notes: Solar Energy, vol. 19, no. 5, 1977, p. 445-448.
Miscellaneous Notes: p. 445-4
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 16, 2011
Contact Us