Carbon supports for oxygen reduction catalysts

Naskar, Amit K.; Paranthaman, Mariappan; Yang, Xuan; Xia, Younan; Hood, Zachary D.; Li, Yunchao

Carbon supports for oxygen reduction catalysts

Patent · Tue Jul 12 04:00:00 EDT 2022

OSTI ID:1924886

Naskar, Amit K.; Paranthaman, Mariappan; Yang, Xuan; Xia, Younan; Hood, Zachary D.; Li, Yunchao

The invention provides a method of making a electrocatalyst from waste tires. The method comprises the steps of providing rubber pieces; optionally contacting the rubber pieces with a sulfonation bath to produce sulfonated rubber; pyrolyzing the rubber to produce tire-derived carbon composite comprising carbon black, wherein the pyrolyzing comprises heating to at least 200° C.-2400° C.; activating the tire-derived carbon composite by contacting the tire-derived carbon composite with an alkali anion compound to provide activated tire-derived carbon supports; and loading the activated carbon-based supports with platinum cubes. In another embodiment, the tire-derived carbon composite is activated by annealing in a carbon dioxide atmosphere.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC05-00OR22725

Assignee:: UT-Battelle, LLC (Oak Ridge, TN); University of Tennessee Research Foundation (Knoxville, TN)

Patent Number(s):: 11,384,219

Application Number:: 15/961,978

OSTI ID:: 1924886

Country of Publication:: United States

Language:: English

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