Search Results - "Baertsch, Chelsey D."

Study of active sites and mechanism responsible for highly selective CO oxidation in H2 rich atmospheres on a mixed Cu and Ce oxide catalyst by POLSTER, Christopher S, NAIR, Hari, BAERTSCH, Chelsey D

“…Reaction mechanisms and active sites are studied for CO and H2 oxidation on CuO x -CeO2 catalysts. High selectivity results primarily from an inhibition of H2…”
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Selectivity loss of Pt/CeO2 PROX catalysts at low CO concentrations: mechanism and active site study by POLSTER, Christopher S, RONG ZHANG, CYB, Michael T, MILLER, Jeffrey T, BAERTSCH, Chelsey D

“…A dual pathway mechanism for CO and H2 oxidation on Pt/CeO2 is proposed and evaluated. Reaction selectivity depends heavily on the prevalent dominant pathway…”
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Support effects on Brønsted acid site densities and alcohol dehydration turnover rates on tungsten oxide domains by Macht, Josef, Baertsch, Chelsey D., May-Lozano, Marcos, Soled, Stuart L., Wang, Yong, Iglesia, Enrique

“…The effects of support identity on catalytic 2-butanol dehydration rates, Brønsted acid site density, and reducibility are examined for WO x domains supported…”
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Spatially resolved in situ FTIR analysis of CO adsorption and reaction on Pt/SiO2 in a silicon microreactor by Tan, Chung Kwang Christopher, Delgass, W. Nicholas, Baertsch, Chelsey D.

“…The design, fabrication and testing of a microreactor-FTIR imaging system is shown and used for the first time to demonstrate the ability to obtain in situ…”
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Fabrication and structural characterization of self-supporting electrolyte membranes for a micro solid-oxide fuel cell by Baertsch, Chelsey D., Jensen, Klavs F., Hertz, Joshua L., Tuller, Harry L., Vengallatore, Srikar T., Spearing, S. Mark, Schmidt, Martin A.

“…Micromachined fuel cells are among a class of microscale devices being explored for portable power generation. In this paper, we report processing and…”
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Mechanistic insights into the formation of acetaldehyde and diethyl ether from ethanol over supported VOx, MoOx, and WOx catalysts by Nair, Hari, Gatt, Joseph E., Miller, Jeffrey T., Baertsch, Chelsey D.

“…Mechanisms for ethanol oxidative dehydrogenation to acetaldehyde and condensation to diethyl ether over supported metal oxides of molybdenum, tungsten and…”
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Reaction and Deactivation Pathways in Xylene Isomerization on Zirconia Modified by Tungsten Oxide by Wilson, Ryan D., Barton, David G., Baertsch, Chelsey D., Iglesia, Enrique

“…The effect of H2 on isomerization pathways and on the acid site density on WOx-ZrO2 catalysts was explored using kinetic measurements of acid-catalyzed…”
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Differences in Catalytic Sites for CO Oxidation and Propylene Epoxidation on Au Nanoparticles by Lee, Wen-Sheng, Zhang, Rong, Akatay, M. Cem, Baertsch, Chelsey D, Stach, Eric A, Ribeiro, Fabio H, Delgass, W. Nicholas

“…Sintering and increased Au loading of Au/TS-1 causes the rate of CO oxidation per mole of Au to increase, whereas that for epoxidation of propylene in O2 and…”
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Genesis of Brønsted Acid Sites during Dehydration of 2-Butanol on Tungsten Oxide Catalysts by Baertsch, Chelsey D., Komala, Kenny T., Chua, Yong-Hwee, Iglesia, Enrique

“…In situ measurements of Brønsted acid sites (by titration with 2,6-di-tert-butyl-pyridine) and reduced centers (by UV–vis spectroscopy) were carried out on…”
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Method for quantifying redox site densities in metal oxide catalysts: Application to the comparison of turnover frequencies for ethanol oxidative dehydrogenation over alumina-supported VOx, MoOx, and WOx catalysts by NAIR, Hari, BAERTSCH, Chelsey D

“…Isothermal anaerobic titration with ethanol as a probe molecule is proposed as an accurate technique to quantify active redox site densities in supported metal…”
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Application of VOx/Al2O3 and Fe2(MoO4)3–MoO3 catalysts for the selective reaction and detection of ethanol in multi-component hydrocarbon fuel mixtures by Gatt, Joseph E., Nair, Hari, Baertsch, Chelsey D.

“…[Display omitted] ▶ Selective reaction of ethanol in typical gasoline constituents is possible. ▶ Metal oxides provide chemical specificity for electrothermal…”
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Identifying the active redox oxygen sites in a mixed Cu and Ce oxide catalyst by in situ X-ray absorption spectroscopy and anaerobic reactions with CO in concentrated H2 by Zhang, Rong, Miller, Jeffery T., Baertsch, Chelsey D.

“…The active redox oxygen sites in a mixed Cu and Ce oxide catalyst (Cu0.07Ce0.93O2) have been for the first time identified to be the first oxygen neighbor of…”
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Mechanism of dynamic structural reorganization in polyoxometalate catalysts by Nair, Hari, Miller, Jeffrey T., Stach, Eric A., Baertsch, Chelsey D.

“…The molecular rearrangement of phosphomolybdic acid during thermal treatment is shown to occur through the formation and transmission of annealing twins…”
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Isotopic and Chemical Titration of Acid Sites in Tungsten Oxide Domains Supported on Zirconia by Baertsch, Chelsey D., Soled, Stuart L., Iglesia, Enrique

“…The acid and surface properties of WO x −ZrO2 solid acid catalysts were examined as a function of WO x surface density. Surface density strongly influences the…”
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Effects of Metal Oxide Domain Size, Dispersion, and Interaction in Mixed WOx/MoOx Catalysts Supported on Al2O3 for the Partial Oxidation of Ethanol to Acetaldehyde by NAIR, Hari, LISZKA, Michael J., GATT, Joseph E., BAERTSCH, Chelsey D.

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Simulating the Performance of a Catalytic Microsensor for Quantifying Ethanol in Inert and Reactive Environments by Nair, Hari, Gatt, Joseph E, Zhang, Rong, Thomsen, Julianne M, Bordley, Justin A, Choung, Sara Y, Baertsch, Chelsey D

“…The selective detection of hydrocarbons using portable microsensors remains a fundamental challenge in materials and microsystem development. This work…”
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Analyzing the Function of Cartilage Replacements: A Laboratory Activity to Teach High School Students Chemical and Tissue Engineering Concepts by Renner, Julie N, Emady, Heather N, Galas, Richards J., Jr, Zhange, Rong, Baertsch, Chelsey D, Liu, Julie C

“…A cartilage tissue engineering laboratory activity was developed as part of the Exciting Discoveries for Girls in Engineering (EDGE) Summer Camp sponsored by…”
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Identifying the active redox oxygen sites in a mixed Cu and Ce oxide catalyst by in situ X-ray absorption spectroscopy and anaerobic reactions with CO in concentrated H by Zhang, Rong, Miller, Jeffery T, Baertsch, Chelsey D

“…The active redox oxygen site of a mixed copper cerium oxide catalyst (Cu₀.₀₇Ce₀.₉₃O₂) and the active copper species for CO preferential oxidation in rich H₂…”
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Method for quantifying redox site densities in metal oxide catalysts: Application to the comparison of turnover frequencies for ethanol oxidative dehydrogenation over alumina-supported VO x , MoO x , and WO x catalysts by Nair, Hari, Baertsch, Chelsey D.

“…Isothermal anaerobic titration with ethanol as a probe molecule is proposed as an accurate technique to quantify active redox site densities in supported metal…”
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Application of VO sub(x)/Al sub(2)O sub(3) and Fe sub(2)(MoO sub(4)) sub(3)-MoO sub(3) catalysts for the selective reaction and detection of ethanol in multi-component hydrocarbon fuel mixtures by Gatt, Joseph E, Nair, Hari, Baertsch, Chelsey D

“…This work presents for the first time the development of a selective catalyst to enable selective hydrocarbon detection when coupled with a microcalorimetric…”
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