1987 …2023

Research Activity per Year


Personal Profile

Research Interests

Production of premium fuels and chemicals from biomass components

Hydrodeoxygenation of biomass-derived components

High-performance size exclusion chromatography of biomass-derived components


Biomass composition and analysis

Biomass pretreatment

Biomass pyrolysis oil fractionation and analysis

Lignin chemistry

High-temperature and pressure lignin hydrotreating

Catalytic hydrodeoxygenation

Sugar and furan chemistries

Supercritical fluid extraction of biomass components

High-performance liquid and size exclusion chromatographies

Professional Experience

Scientist V, Manager, NREL (2013–present)

Senior Scientist II, NREL (1998–2013)

Acting Branch Manager, NREL (1992–1993)

Senior Chemist, NREL (1989–1998)

Staff Electrochemical Engineer, NREL (1984–1989)

Postdoctoral Fellow, Solar Energy Research Institute (1982–1984)

Postdoctoral Fellow, University of California, Los Angeles (1980–1982)

Education/Academic Qualification

PhD, Electrochemical Engineering, University of Southampton

Bachelor, Chemistry, University of Southampton


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Collaborations and Top Research Areas From the Past 5 Years

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