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Author: Winnie Wong-Ng

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1. Evaluation of the Current Status of the Combinatorial Approach for the Study of Phase Diagrams
Series: Journal of Research (NIST JRES)
Report Number: 117.018
Published: 12/21/2012
Author: Winnie K Wong-Ng
Abstract: This paper provides an evaluation of the effectiveness of using the high throughput combinatorial approach for preparing phase diagrams of thin film and bulk materials. Our evaluation is based primarily on examples of combinatorial phase diagrams ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909765

2. Time dependent CO2 sorption hysteresis in a one-dimensional microporous octahedral molecular sieve
Published: 4/6/2012
Authors: Laura Espinal, Winnie K Wong-Ng, Andrew John Allen, Daniel W Siderius, Chad R Snyder, Eric J Cockayne, Lan (Lan) Li, James A. Kaduk, Anais E. Espinal, Steven L. Suib, Chun Chiu
Abstract: A critical challenge in the development of novel carbon capture materials with engineered porous architectures is to understand and control the phenomenon of sorption hysteresis, whereby the path to adsorption of gas molecules by the porous host diff ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909707

3. Development of a Seebeck Coefficient Standard Reference Material (SRM)™
Published: 8/1/2011
Authors: Nathan Lowhorn, Winnie K Wong-Ng, John Lu, Joshua Brooks Martin, Martin L Green, John E Bonevich, Evan L. Thomas, Neil Dilley, Jeff Sharp
Abstract: We have successfully developed a Seebeck coefficient Standard Reference Material (SRM™), Bi2Te3, that is essential for interlaboratory data comparison and for instrument calibration. Certification measurements were performed using a differential stea ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907792

4. Selective Adsorption of CO2 from Light Gas Mixtures Using a Structurally Dynamic Porous Coordination Polymer
Published: 4/29/2011
Authors: Winnie K Wong-Ng, Andrew John Allen, Laura Espinal, Kristi L Kauffman, Jeffrey T Culp, Angela Goodman, Thomas D Brown, Mark P Bernardo, Russel J Pancoast, Danielle Chirdon, Christopher Matranga
Abstract: The selective adsorption of CO2 from binary mixtures of N2 and CH4 was investigated using a structurally dynamic porous coordination polymer, catena-bis(dibenzoylmethanato)-(4,4’bipyridyl)nickel (II), ‘NiDBM-Bpy’, as the separation sorbent. A third g ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908322

5. High Resolution Reference X-ray Diffraction Pattern for Bis(2-methylimidazolyl)-Zinc, C8H10N4Zn (ZIF-8)
Published: 4/24/2011
Authors: Winnie K Wong-Ng, James A Kaduk, Laura Espinal, Matthew Suchomel, Andrew John Allen
Abstract: The family of zeolitic imidazolate framework (ZIF) compounds are efficient sorbent materials that can be used for catalytic, ion exchange, gas storage and gas separation applications. A high resolution reference x-ray powder diffraction pattern for o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906156

6. On the Design of High Efficiency Thermoelectric Type I Clathrates through Transition Metal Doping
Published: 4/14/2010
Authors: Winnie K Wong-Ng, X Shi, Joing Yang, S Bai, Jihui Yang, Hsin Wang, James Salvador, W Zhang, L Chen
Abstract: We have developed a scheme for improving the thermoelectric properties of type I Ba8Ga16Ge30 clathrates by doping transition metals, TM, on the Ga sites. TM doping introduces charge distortion and lattice defects into the materials which increases t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902384

7. Phase Compatibility of the Thermoelectric Compounds in the Sr-Ca-Co-O System
Published: 4/14/2010
Authors: Winnie K Wong-Ng, Guangyao Liu, Joshua Brooks Martin, Evan L. Thomas, Nathan Lowhorn, James A. Kaduk
Abstract: Two low-dimensional cobaltite series in the Sr-Ca-Co-O system have been investigated for their solid solution limit, structure, and compatibility phase relationships (850 deg C in air). Thermoelectric properties have been measured for selected member ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903156

8. The 2009 Material Research Society (MRS) Spring Meeting Report
Published: 12/31/2009
Author: Winnie K Wong-Ng
Abstract: The 2009 Materials Research Society (MRS) Spring Meeting took place in San Francisco Moscone Center from April 13 through 17. This large-scale meeting included forty-one technical symposia, nine symposium tutorials, three poster sessions, a popular S ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903921

9. RECENT INVESTIGATIONS OF Sr-Ca-Co-O THERMOELECTRIC MATERIALS
Published: 12/21/2009
Authors: Winnie K Wong-Ng, Guangyao Liu, Makoto Otani, Evan L. Thomas, Nathan Lowhorn, Martin L Green, James A. Kaduk
Abstract: Three low-dimension cobaltites in the Sr-Ca-Co-O system have been studied for their structure and thermoelectric properties. Using x-ray pole figure construction technique, a Ca3Co4O9 thin film showed excellent fiber texture but no ab in-plane textur ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901376

10. Reference X-ray Powder Diffraction Pattern of a New High-Pressure Phase, CaCo2O4
Published: 12/17/2009
Authors: Winnie K Wong-Ng, James A Kaduk, Masaaki Isobe
Abstract: Research in new cobaltites is important for waste heat recovery applications. A new calcium cobaltite phase, CaCo2O4, prepared under high pressure, has been reported recently to have a large Seebeck coefficient. This paper reports the reference x-ray ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902371