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Structural Evolution Of Molybdenum Carbides In Hot Aqueous Environments And Impact On Low-Temperature Hydroprocessing Of Acetic Acid, Jae-Soon Choi, Viviane Schwartz, Eduardo Santillan-Jimenez, Mark Crocker, Samuel A. Lewis Jr., Michael J. Lance, Harry M. Meyer Iii, Karren L. More
Structural Evolution Of Molybdenum Carbides In Hot Aqueous Environments And Impact On Low-Temperature Hydroprocessing Of Acetic Acid, Jae-Soon Choi, Viviane Schwartz, Eduardo Santillan-Jimenez, Mark Crocker, Samuel A. Lewis Jr., Michael J. Lance, Harry M. Meyer Iii, Karren L. More
Center for Applied Energy Research Faculty and Staff Publications
We investigated the structural evolution of molybdenum carbides subjected to hot aqueous environments and their catalytic performance in low-temperature hydroprocessing of acetic acid. While bulk structures of Mo carbides were maintained after aging in hot liquid water, a portion of carbidic Mo sites were converted to oxidic sites. Water aging also induced changes to the non-carbidic carbon deposited during carbide synthesis and increased surface roughness, which in turn affected carbide pore volume and surface area. The extent of these structural changes was sensitive to the initial carbide structure and was lower under actual hydroprocessing conditions indicating the possibility of further …
Bio-Oil And Biodiesel As Biofuels Derived From Microalgal Oil And Their Characterization By Using Instrumental Techniques, Dipesh Kumar, Bhaskar Singh, Kuldeep Bauddh, John Korstad
Bio-Oil And Biodiesel As Biofuels Derived From Microalgal Oil And Their Characterization By Using Instrumental Techniques, Dipesh Kumar, Bhaskar Singh, Kuldeep Bauddh, John Korstad
College of Science and Engineering Faculty Research and Scholarship
Microalgal oil has been a source for production of biofuels such as bio-oil and biodiesel. These two biofuels can be characterized quantitatively using advanced instrumentation techniques. Nile red fluorescence method, PAM fluorometry, NMR, GC/GC-MS, and FTIR are among the major techniques available for characterization and quantification of algal oil. NMR is a rapid and nondestructive analytical technique as it requires minimal sample preparation, and even one intact algal cell can be analyzed. It can also be used for continuous monitoring of cellular composition of algal culture. NMR can be used to monitor transesterification reaction and oxidation of lipids and biodiesel …