The University of New Mexico

Other

Daihatsu Motor Company, Ltd.

Tim S Olson

Plamen B Atanassov

Svitlana Pylypenko

Hirohisa Tanaka

Koji Yamada

Koichiro Asazawa

Ryan Patrick O'Hayre

Dimiter N Petsev

Joseph Victor Kosmoski

Nick Carroll

C Deane Little

Yongan Yang

Kazuya Yamamoto

A chemical process captures and convert hydrogen sulfide (HS) gas into elemental sulfur, polysulfide, sulfur dioxide and/or sulfuric acid while regenerating sodium hydroxide capture agent for further use in an initial HS capture step. Processing may include initial sodium hydroxide scrubbing of gas streams containing HS, electrochemical regeneration of the sodium hydroxide from sodium hydrosulfide or sodium sulfide, recovery of sulfur and/or sulfur dioxide from the electrochemical processing, and production of sulfuric acid from such sulfur and/or sulfur dioxide.

Treatment of hydrogen sulfide

In a fuel cell including an electrolyte layer allowing an anion component to migrate, and a fuel-side electrode and an oxygen-side electrode arranged to face each other while sandwiching the electrolyte layer, the oxygen-side electrode contains a first catalyst containing a first transition metal and polypyrrole, and a second catalyst containing a second transition metal and a porphyrin ring-containing compound so that the mixing ratio of the first catalyst relative to 100 parts by mass of the total amount of the first catalyst and the second catalyst is more than 10 parts by mass, and below 90 parts by mass.

Oxygen side electrode for a fuel cell

The present disclosure provides oxide microparticles with engineered hierarchical porosity and methods of manufacturing the same. Also described are structures that are formed by templating, impregnating, and/or precipitating the oxide microparticles and method for forming the same. Suitable applications include catalysts, electrocatalysts, electrocatalysts support materials, capacitors, drug delivery systems, sensors and chromatography.

Microparticles with hierarchical porosity

A highly dispersed, unsupported, electrocatalyst made of pyrolyzed porphyries and a method for synthesizing the same. The disclosed synthesis procedure allows for optimization of pore size and therefore transport properties. Compounds suitable for use include transition metal N-chelates such as, but not necessarily limited to, N-chelates containing different metal centers including Co, Fe, Mn, Ni, Ru, Cu, etc., and other N-chelates such as porphyrin, phthalocyanies, and structures based on their pyro products.

Self supporting structurally engineered non-platinum electrocatalyst for oxygen reduction in fuel cells

Growing community of inventors

Arvada, CO, United States of America

Tim S Olson