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Title: Method to prevent sulfur accumulation in membrane electrode assembly

A method of operating a hybrid sulfur electrolyzer to generate hydrogen is provided that includes the steps of providing an anolyte with a concentration of sulfur dioxide, and applying a current. During steady state generation of hydrogen a plot of applied current density versus concentration of sulfur dioxide is below a boundary line. The boundary line may be linear and extend through the origin of the graph with a slope of 0.001 in which the current density is measured in mA/cm2 and the concentration of sulfur dioxide is measured in moles of sulfur dioxide per liter of anolyte.
Authors:
; ;
Publication Date:
OSTI Identifier:
1130082
Report Number(s):
8,709,229
12/930,486
DOE Contract Number:
AC09-08SR22470
Resource Type:
Patent
Research Org:
SRNL (Savannah River National Laboratory (formerly SRTC) (United States))
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY