Sandia National Laboratories, January 1992 ‑ May 2007; Primary focus on developing and characterizing chemical processes and related active materials. Examples include:
- Catalysts for partial oxidation of hydrocarbons, e.g. to olefins and syngas.
- Catalysts and components for catalytic combustion.
- Emerging radioactive waste treatment technologies including of engineered forms of crystalline silicotitanate ion exchangers and steam reforming technologies for destruction of organics.
- Catalytic hydrotreating/hydrocracking of coal and petroleum liquids.
- Based-catalyzed lignin depolymerization.
- Desalination including forward-osmosis and sweeping-gas membrane distillation.
- Exhaust gas aftertreatment including materials for catalytic NOx storage and reduction.
- Novel nanostructured Pt materials for catalytic and other applications, e.g. fuel cells.
The latter years of the time there were largely directed towards metal-oxide based solar thermochemistry for the production of synthetic fuels from carbon dioxide and water, for thermochemical energy storage, and ammonia synthesis. Dr. Miller served as PI on many efforts and led and contributed directly to multiple areas including materials development and characterization, development of new high temperature thermochemical reactors and systems, and thermodynamic, engineering and technoeconomic analysis.