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Search Publications by: Winnie Wong-Ng (Assoc)

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Displaying 1 - 25 of 549

Integrating Crystallographic and Computational Approaches to Carbon-Capture Materials for the Mitigation of Climate Change

August 27, 2024
Author(s)
Eric J. Cockayne, Austin McDannald, Winnie Wong-Ng, Yu-Sheng Chen, Felipe Gandara Barragan, Jason Benedict, Christopher H. Hendon, David A. Keen, Ute Kolb, Lan Li, Shengqian Ma, William Morris, Aditya Nandy, Tomce Runcevski, Mustapha Soukri, Anuroop Sriram, Janice A. Steckel, John Findley, Chris Wilmer, Taner N. Yildirim, Wei Zhou, Igor Levin, Craig Brown
This article presents an overview of the current state of the art in the structure determination of microporous carbon-capture materials, as discussed at the recent NIST workshop "Integrating Crystallographic and Computational Approaches to Carbon-Capture

The optical and magnetic properties of Ru-doped hybrid improper perovskite Ca3Mn2O7 via experimental and first-principles calculations

April 7, 2023
Author(s)
Kejia Yuan, Hanwen Zhang, Tianqi Xiao, Zhiyan Li, Winnie Wong-Ng, Wei Zhou, Chao Wang, Shouyu Wang, Weifang Liu
The quasi-2D Ruddlesden-Popper layered perovskites with single-phase multiferroicity have attracted much attention in recent magnetoelectric memory applications. We have systematically investigated the optical and magnetic properties of Ru-doped hybrid

Structural and thermal properties of Eu2Ga11Sn35

March 3, 2023
Author(s)
Wilarachchige Gunatilleke, Mingjian Zhang, Winnie Wong-Ng, Peter Zavalij, George S. Nolas
Clathrates have been reported in a variety of different structure types, however, inorganic clathrate-I materials with a low-cation concentration have yet to be investigated while tin-based compositions have been much less investigated as compared to

Dynamic structural and microstructural responses of a metal organic framework type material to carbon dioxide under dual gas flow and supercritical conditions

February 1, 2023
Author(s)
Andrew J. Allen, Eric J. Cockayne, Winnie Wong-Ng, Jeffrey Culp, Ivan Kuzmenko
The structural and microstructural responses of a model metal-organic framework (MOF) material, Ni(3-Methy-4,4'-bipyridine)[Ni(CN)4] (Ni-BpyMe or PICNIC 21), to CO2 adsorption and desorption are reported for in situ small-angle X-ray scattering (SAXS) and

Entering New Era of Thermoelectric Oxide Ceramics with High Power Factor through Designing Grain Boundaries

January 12, 2023
Author(s)
Cesar-Octavio Romo-De-La-Cruz, Yun Chen, Liang Liang, Sergio Paredes-Navia, Winnie Wong-Ng, Mark Williams, Xueyan Song
Thermoelectric (TE) oxide ceramics could play a significant role in waste heat recovery using TE generators, accelerating clean energy generation and achieving net-zero emissions. In 2003, the TE performance of single-crystal Ca3Co4O9+δ was evaluated with

Reproducible Sorbent Materials Foundry for Carbon Capture at Scale

September 22, 2022
Author(s)
Austin McDannald, Howie Joress, Brian DeCost, Avery Baumann, A. Gilad Kusne, Kamal Choudhary, Taner N. Yildirim, Daniel Siderius, Winnie Wong-Ng, Andrew J. Allen, Christopher Stafford, Diana Ortiz-Montalvo
We envision an autonomous sorbent materials foundry (SMF) for rapidly evaluating materials for direct air capture of carbon dioxide ( CO2), specifically targeting novel metal organic framework materials. Our proposed SMF is hierarchical, simultaneously

Structural and electronic properties of Cu3InSe4

September 11, 2022
Author(s)
Oluwagbemiga Ojo, Winnie Wong-Ng, Teiyan Chang, Yu-Sheng Chen, George S. Nolas
Single crystals of the previously unascertained ternary chalcogenide Cu3InSe4 were obtained by induction melting, allowing for a complete investigation of the crystal structure by employing high-resolution single-crystal synchrotron X-ray diffraction

Thermal and mechanical properties of clathrate-II Na24Si136

June 30, 2022
Author(s)
Matthew Beekman, Antti Karttunen, Winnie Wong-Ng, Mingjian Zhang, Yu-Sheng Chen, Christian Posadas, Andrew Jarymowycz, Ethan Cruise, Wanyue Peng, Alexandra Zevalkink, James A. Kaduk, George S. Nolas
Thermal expansion, lattice dynamics, heat capacity, compressibility, and pressure stability of the intermetallic clathrate Na24Si136 have been investigated by a combination of first principles calculations and experiment. Direct comparison of the

Powder X-ray structural analysis and band gap measurements for (CaxSr2-x)MnWO6 (x = 0.25, 0.5, 0.75, 1.5, 1.75).

June 1, 2022
Author(s)
Winnie Wong-Ng, YuQi Yang, Yu-Cheng Lan, GuangYao Liu, Amrit Kafle, Weifang Liu, Jie Hou, Donald Windover, Qingzhen Huang, Sergiy Krylyuk, James A. Kaduk
The structure, powder diffraction patterns and band gap measurements of a series of manganese- and tungsten-containing alkaline-earth double perovskites (CaxSr2-x)MnWO6 (x=0.25, 0.5, 0.75, 1.5, 1.75) have been investigated. Powder X-ray diffraction

Crystal structure and thermochromic behavior of the quasi-0D lead-free organic-inorganic hybrid compounds (C7H9NF)8M4I16 (M = Bi, Sb)

December 31, 2021
Author(s)
Winnie Wong-Ng, Xiochen Zhao, Yikai Fu, Yunlin Lei, Chao Wang, Wei Zhou, Shouyu Wang, Weifang Liu
Quasi 0-D lead-Free thermochromic organic-inorganic hybrid single crystals (C7H9NF)8M4I16 (M = Bi, Sb) were synthesized by a conventional solvothermal reaction method. The crystal structures were analyzed using single crystal X-ray diffraction (SXRD)