Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Max A. Mellmer"'
Autor:
Max A. Mellmer, Chotitath Sanpitakseree, Benginur Demir, Kaiwen Ma, William A. Elliott, Peng Bai, Robert L. Johnson, Theodore W. Walker, Brent H. Shanks, Robert M. Rioux, Matthew Neurock, James A. Dumesic
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Despite the potential advantages of using polar aprotic solvents for biomass upgrading reactions, fundamental understanding of these solvation effects is limited at present. Here, the authors show that further increases in catalyst performance in pol
Externí odkaz:
https://doaj.org/article/89c6d31288c6424ab738ef7bef82e606
Autor:
Marek Pruski, Takeshi Kobayashi, Frédéric A. Perras, Thomas F. Garrison, Max A. Mellmer, Michael P. Hanrahan, Aaron J. Rossini, James A. Dumesic, Robert L. Johnson, Brent H. Shanks
Publikováno v:
ACS Catalysis. 9:11568-11578
Catalyst deactivation resulting from the hydrothermal leaching of sulfonic acid residues and the deposition of carbonaceous residues was studied using condensed phase flow reactor experiments along...
Autor:
Robert L. Johnson, Matthew Neurock, Theodore W. Walker, William A. Elliott, James A. Dumesic, Brent H. Shanks, Peng Bai, Benginur Demir, Chotitath Sanpitakseree, Max A. Mellmer, Kaiwen Ma, Robert M. Rioux
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-10 (2019)
Nature Communications
Nature Communications
The use of polar aprotic solvents in acid-catalyzed biomass conversion reactions can lead to improved reaction rates and selectivities. We show that further increases in catalyst performance in polar aprotic solvents can be achieved through the addit
Autor:
James A. Dumesic, Matthew Neurock, Benginur Demir, Peng Bai, Kaiwen Ma, Chotitath Sanpitakseree, Max A. Mellmer
Publikováno v:
Nature Catalysis. 1:199-207
The use of organic solvents in biomass conversion reactions can lead to high rates and improved selectivities. Here, we elucidate the effects of organic solvent mixtures with water on the kinetics of acid-catalysed dehydration reactions of relevance
Autor:
Robert L. Johnson, James A. Dumesic, Brent H. Shanks, Aaron J. Rossini, Michael P. Hanrahan, Max A. Mellmer
Publikováno v:
The Journal of Physical Chemistry C. 121:17226-17234
High-resolution magic angle spinning (HR-MAS) NMR spectroscopy was used to study the effect of mixed solvent systems on the acidity at the solid–liquid interface of solid acid catalysts. A method was developed that can exploit benefits of both solu
Selective Hydrogenation of Unsaturated Carbon–Carbon Bonds in Aromatic-Containing Platform Molecules
Autor:
Ali Hussain Motagamwala, Thomas J. Schwartz, James A. Dumesic, Max A. Mellmer, Spencer D. Lyman
Publikováno v:
ACS Catalysis. 6:2047-2054
The combination of chemical and biological catalysis enables the production from biomass of coumarin and dihydrocoumarin (DHC), opening new routes to the formation of fine chemicals and pharmaceutical building blocks. Each of these products requires
Publikováno v:
ChemSusChem. 8:3983-3986
Reaction kinetics were studied to quantify the effects of water on the conversion of hydroxymethylfurfural (HMF) in THF over Cu/γ-Al2 O3 at 448 K using molecular H2 as the hydrogen source. We show that low concentrations of water (5 wt %) in the THF
Publikováno v:
ACS Catalysis. 5:3354-3359
Furfuryl alcohol in high concentrations (1 M) was hydrolyzed to levulinic acid in high yields (>70%) using H-ZSM-5 zeolite as the catalyst in monophasic tetrahydrofuran (THF)–water solvent systems. Reaction kinetics studies using H-ZSM-5 were carri
Autor:
Jingming Tao, Ali Hussain Motagamwala, Carl J. Houtman, Valerie Garcia-Negron, Sikander H. Hakim, David Martin Alonso, Troy Runge, Christos T. Maravelias, Omid Hosseinaei, Nicole Labbé, Max A. Mellmer, Wangyun Won, David P. Harper, Shengfei Zhou, James A. Dumesic, Kefeng Huang
Publikováno v:
Science Advances
Replacing petroleum by biomass can be economically feasible by generating revenue from the three primary biomass constituents.
The production of renewable chemicals and biofuels must be cost- and performance- competitive with petroleum-derived e
The production of renewable chemicals and biofuels must be cost- and performance- competitive with petroleum-derived e
Autor:
James A. Dumesic, Canan Sener, Jean Marcel R. Gallo, Max A. Mellmer, Jeremy S. Luterbacher, David Martin Alonso
Publikováno v:
Angewandte Chemie. 126:12066-12069
Reaction kinetics were studied to quantify the effects of polar aprotic organic solvents on the acid-catalyzed conversion of xylose into furfural. A solvent of particular importance is g-valerolactone (GVL), which leads to signifi- cant increases in