Apparatus for the production of hydrogen from sodium borohydride in alkaline solution

2008 ◽  
Vol 33 (1) ◽  
pp. 51-56 ◽  
Author(s):  
A POZIO ◽  
M DEFRANCESCO ◽  
G MONTELEONE ◽  
R ORONZIO ◽  
S GALLI ◽  
...  
Keyword(s):  
Alkaline Solution ◽  
Sodium Borohydride ◽  
Production Of Hydrogen

Photochemical production of hydrogen from alkaline solution containing polysulfide dyes

2001 ◽  
Vol 18 (6) ◽  
pp. 894-897 ◽  
Author(s):  
Sang Gi Lee ◽  
Jae-Hyun Kim ◽  
Sangwha Lee ◽  
Ho-In Lee
Keyword(s):  
Alkaline Solution ◽  
Photochemical Production ◽  
Production Of Hydrogen

New oxidation products of tryptophan

1975 ◽  
Vol 28 (10) ◽  
pp. 2275 ◽  
Author(s):  
WE Savige
Keyword(s):  
Acetic Acid ◽  
Carboxylic Acid ◽  
Propionic Acid ◽  
Alkaline Solution ◽  
Sodium Borohydride ◽  
Room Temperature ◽  
Oxidation Products ◽  
Acid Oxidation ◽  
Peroxyacetic Acid ◽  
Molar Equivalent

Oxidation of L- or DL-tryptophan by one molar equivalent of peroxyacetic acid in water at 0-5� gives principally a mixture of 3a- hydroxy-1,2,3,3a,8,8a-hexahydropyrrolo[2,3-b]indole-2-carboxylic acid (A) diastereoisomers, while oxidation by two or three equivalents of oxidant gives mainly N?-formylkynurenine (C11H12N2O4) and a diastereoisomeric product (B), C11H12N2O5, tentatively assigned the structure 2-amino-3-(4-hydroxy-2-oxo-1,4-dihydro-2H-3,1-benzoxazin-4- yl)propionic acid. ��� Oxidation of (A) by peroxyacetic acid also gives formylkynurenine and (B). Rearrangement of (A) to oxindolylalanine occurs in 12N HCl at 20� or 2N HCl at 80�. (A) is also obtained by reduction of dioxindolylalanine with sodium borohydride. Compound (B) readily undergoes decarboxylation to kynurenine in 0.1N acetic acid at 80�, while in neutral or alkaline solution rapid autoxidation can occur even at room temperature.

Study on a Reactor Design and Catalyst for Hydrogen Generation from Alkaline Solution of Sodium Borohydride

2007 ◽  
pp. 2295-2300
Author(s):  
Myung Keun Han ◽  
J.H. Han ◽  
Kyong Jun An ◽  
D.S. Jeon ◽  
Don Gervasio ◽  
...  
Keyword(s):  
Alkaline Solution ◽  
Sodium Borohydride ◽  
Hydrogen Generation ◽  
Reactor Design
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