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Showing 1 to 12 of 51 entries
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Stabilization of copper catalysts for liquid-phase reactions by atomic layer deposition.

Angewandte Chemie (International ed. in English)

O'Neill BJ, Jackson DH, Crisci AJ, Farberow CA, Shi F, Alba-Rubio AC, Lu J, Dietrich PJ, Gu X, Marshall CL, Stair PC, Elam JW, Miller JT, Ribeiro FH, Voyles PM, Greeley J, Mavrikakis M, Scott SL, Kuech TF, Dumesic JA.
PMID: 24282166
Angew Chem Int Ed Engl. 2013 Dec 16;52(51):13808-12. doi: 10.1002/anie.201308245. Epub 2013 Nov 26.

Atomic layer deposition (ALD) of an alumina overcoat can stabilize a base metal catalyst (e.g., copper) for liquid-phase catalytic reactions (e.g., hydrogenation of biomass-derived furfural in alcoholic solvents or water), thereby eliminating the deactivation of conventional catalysts by sintering...

Tuning Acid-Base Properties Using Mg-Al Oxide Atomic Layer Deposition.

ACS applied materials & interfaces

Jackson DH, O'Neill BJ, Lee J, Huber GW, Dumesic JA, Kuech TF.
PMID: 26168188
ACS Appl Mater Interfaces. 2015 Aug 05;7(30):16573-80. doi: 10.1021/acsami.5b04107. Epub 2015 Jul 23.

Atomic layer deposition (ALD) was used to coat γ-Al2O3 particles with oxide films of varying Mg/Al atomic ratios, which resulted in systematic variation of the acid and base site areal densities. Variation of Mg/Al also affected morphological features such...

Surface, catalytic, and magnetic properties of small iron particles: The effect of chemisorption of hydrogen on magnetic anisotropy.

Proceedings of the National Academy of Sciences of the United States of America

Boudart M, Dumesic JA, Topsøe H.
PMID: 16592390
Proc Natl Acad Sci U S A. 1977 Mar;74(3):806-10. doi: 10.1073/pnas.74.3.806.

The superparamagnetic behavior of very small particles of metallic iron (ca 1.5 nm), with about half of their atoms at the surface, is changed reversibly by adsorption and desorption of hydrogen below the superparamagnetic transition temperature. The change after...

Preferential oxidation of CO in H2 by aqueous polyoxometalates over metal catalysts.

Angewandte Chemie (International ed. in English)

Kim WB, Voitl T, Rodriguez-Rivera GJ, Evans ST, Dumesic JA.
PMID: 15619253
Angew Chem Int Ed Engl. 2005 Jan 21;44(5):778-82. doi: 10.1002/anie.200461601.

No abstract available.

Hydrogenation of benzene using aqueous solution of polyoxometalates reduced by CO over gold catalysts.

Journal of the American Chemical Society

Rodriguez-Rivera GJ, Kim WB, Evans ST, Voitl T, Dumesic JA.
PMID: 16076159
J Am Chem Soc. 2005 Aug 10;127(31):10790-1. doi: 10.1021/ja052453f.

Aqueous polyoxometalate (H3PMo12O40) solution reduced by CO with liquid water using gold nanoparticle catalysts at room temperature, which contains protons in liquid water and electrons associated with the reduced polyoxometalate, can produce gaseous H2 or can hydrogenate benzene over...

Integrated catalytic conversion of gamma-valerolactone to liquid alkenes for transportation fuels.

Science (New York, N.Y.)

Bond JQ, Alonso DM, Wang D, West RM, Dumesic JA.
PMID: 20185721
Science. 2010 Feb 26;327(5969):1110-4. doi: 10.1126/science.1184362.

Efficient synthesis of renewable fuels remains a challenging and important line of research. We report a strategy by which aqueous solutions of gamma-valerolactone (GVL), produced from biomass-derived carbohydrates, can be converted to liquid alkenes in the molecular weight range...

Catalytic Production of Glucose-Galactose Syrup from Greek Yogurt Acid Whey in a Continuous-Flow Reactor.

ChemSusChem

Lindsay MJ, Huang K, Buchinger BA, Maravelias CT, Dumesic JA, Rankin SA, Huber GW.
PMID: 31872524
ChemSusChem. 2020 Feb 21;13(4):791-802. doi: 10.1002/cssc.201902847. Epub 2020 Jan 21.

The hydrolysis of lactose in aqueous solutions and dairy waste streams was studied using Amberlyst 70 as a heterogeneous acid catalyst in a continuous-flow packed-bed reactor. The catalyst was stable during hydrolysis of an aqueous lactose feed but deactivated...

Polycystic ovary syndrome as a plausible evolutionary outcome of metabolic adaptation.

Reproductive biology and endocrinology : RB&E

Dumesic DA, Padmanabhan V, Chazenbalk GD, Abbott DH.
PMID: 35012577
Reprod Biol Endocrinol. 2022 Jan 10;20(1):12. doi: 10.1186/s12958-021-00878-y.

As a common endocrinopathy of reproductive-aged women, polycystic ovary syndrome (PCOS) is characterized by hyperandrogenism, oligo-anovulation and polycystic ovarian morphology. It is linked with insulin resistance through preferential abdominal fat accumulation that is worsened by obesity. Over the past...

Effects of chloride ions in acid-catalyzed biomass dehydration reactions in polar aprotic solvents.

Nature communications

Mellmer MA, Sanpitakseree C, Demir B, Ma K, Elliott WA, Bai P, Johnson RL, Walker TW, Shanks BH, Rioux RM, Neurock M, Dumesic JA.
PMID: 30850608
Nat Commun. 2019 Mar 08;10(1):1132. doi: 10.1038/s41467-019-09090-4.

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 addition of inorganic...

Glycerol as a source for fuels and chemicals by low-temperature catalytic processing.

Angewandte Chemie (International ed. in English)

Soares RR, Simonetti DA, Dumesic JA.
PMID: 16683289
Angew Chem Int Ed Engl. 2006 Jun 12;45(24):3982-5. doi: 10.1002/anie.200600212.

No abstract available.

Powering fuel cells with CO via aqueous polyoxometalates and gold catalysts.

Science (New York, N.Y.)

Kim WB, Voitl T, Rodriguez-Rivera GJ, Dumesic JA.
PMID: 15333837
Science. 2004 Aug 27;305(5688):1280-3. doi: 10.1126/science.1100860.

Electricity was produced by catalytic oxidation of carbon monoxide (CO) by using gold catalysts at room temperature. The observed rates are faster than conventional processes operating at 500 kelvin or higher for the conversion of CO with water to...

Catalytic reforming of oxygenated hydrocarbons for hydrogen with low levels of carbon monoxide.

Angewandte Chemie (International ed. in English)

Davda RR, Dumesic JA.
PMID: 12973772
Angew Chem Int Ed Engl. 2003 Sep 05;42(34):4068-71. doi: 10.1002/anie.200351664.

No abstract available.

Showing 1 to 12 of 51 entries