Kyoung-Shin Choi Explained

Kyoung-Shin Choi
Fields:Alfred P. Sloan Research Fellowship
Workplaces:University of Wisconsin-Madison (2012-present)
Purdue University (2002-2012)
University of California, Santa Barbara (2000-2002)
Thesis Title:Studies on the multinary antimony chalocogenides and related compounds prepared by the molten salt method
Thesis Url:https://www.worldcat.org/oclc/47442268
Thesis Year:2000
Doctoral Advisor:Mercouri G. Kanatzidis
Academic Advisors:Jin-Ho Choy, Galen D. Stucky, Eric W. McFarland
Awards:Electrochemistry, Materials chemistry, Inorganic chemistry, Nanoscience
Hangul:최경신[1] [2] [3]
Hanja:!
Mr:Ch'oe Kyŏngsin
Rr:Choe Gyeongsin

Kyoung-Shin Choi is a professor of chemistry at the University of Wisconsin-Madison.[4] [5] Choi's research focuses on the electrochemical synthesis of electrode materials, for use in electrochemical and photoelectrochemical devices.

Early life and education

Choi studied piano at Yewon Middle School, Korea's first middle school dedicated to the arts. In high school, Choi liked Chemistry and Physics classes tremendously and decided to become a scientist.[6] [7] Choi attended college at Seoul National University in South Korea, earning her B.S. (major in Food and Nutrition and minor in Chemistry) in 1993 and M.S. in 1995. She worked with Jin-Ho Choy on the crystal structure, pressure-induced phase transitions, and magnetism of chromium-niobium oxide materials that adopt the double perovskite structure.[8]

For her doctoral study, Choi came to the United States in 1995. She worked at Michigan State University in the laboratory of Mercouri G. Kanatzidis, earning her Ph.D. in chemistry in 2000. Her graduate work focused on the synthesis of various solid state antimony and bismuth-containing chalcogenides[9] [10] [11] using the "molten polychalcogenide salt method."

Choi then conducted postdoctoral studies from 2000 to 2002 at the University of California, Santa Barbara with Galen D. Stucky and Eric W. McFarland. Her postdoctoral research concerned the electrochemical synthesis of nanostructured thin films.[12] [13]

Independent career

Choi began her independent career at Purdue University as an assistant professor in 2002, and was later promoted to associate professor. She was a visiting scholar at the National Renewable Energy Laboratory in 2008. In 2012, she moved to University of Wisconsin-Madison as a full professor of chemistry.[14]

Choi has served as an associate editor of the journal Chemistry of Materials since 2014.[15]

Research

The Choi research group studies electrodes and catalysts for use in photoelectrochemical and electrochemical applications. Earlier work in the group has included the crystallization of cuprous oxide in various morphologies, in which the authors utilized electrochemistry to control the crystallization process and resultant crystal morphologies.[16] [17]

The Choi group has extensively studied bismuth vanadate, a photoanode for light-driven water splitting. This material suffers from facile bulk electron-hole recombination, but by combining the bismuth vanadate catalyst with oxygen-evolution catalysts such as FeOOH and NiOOH, Choi and coworkers were able to minimize this deleterious process and achieve higher catalytic efficiencies.[18] [19] The Choi group has also studied the stability of the bismuth vanadate catalyst,[20] as well as the effects of surface composition on the interfacial energetics of photoelectrochemical catalysis.[21]

In one report, Choi and coworkers developed a photoelectrochemical cell (PEC), a device that can split water into hydrogen and oxygen given inputs of light and electricity. PECs are promising devices for hydrogen production, for use in a hydrogen economy. However, the anodic reaction, the oxygen evolution reaction (OER), is slow and limits the overall process. To sidestep this problem, Choi and coworkers paired the hydrogen evolution reaction (HER) with oxidation of 5-hydroxymethylfurfural (HMF) to 2,5-furandicarboxylic acid (FDCA).[22] This allows them to generate FDCA, a valuable commodity chemical used in plastic production, from HMF, which can be derived from cellulose.[23]

Awards[24]

References

  1. 정덕영. Iordanidis. Lykourgos. 최경신. Kanatzidis. Mercouri G.. 1998. Complex Chalcogenides as Thermoelectric Materials: A Solid State Chemistry Approach. Bulletin of the Korean Chemical Society. 19. 12. 1283–1293. 0253-2964.
  2. Web site: 2005-08-28. 여성과학기술인대회 참석 재미과학자 최경신 교수. 2021-06-09. The Hankyoreh. ko.
  3. News: 전. 승민. 2005-11-08. 700명 뚫고 美 연구과제 따낸 여장부. ko. No Cut News. 2021-06-09.
  4. Web site: kschoi Department of Chemistry . 2021-06-09 . www2.chem.wisc.edu . en.
  5. Web site: Kyoung-Shin Choi Wisconsin Energy Institute . 2021-06-09 . energy.wisc.edu.
  6. Web site: 2005-08-28 . 여성과학기술인대회 참석 재미과학자 최경신 교수 . 2021-06-09 . . ko.
  7. News: 전 . 승민 . 2005-11-08 . 700명 뚫고 美 연구과제 따낸 여장부 . ko . . 2021-06-09.
  8. Choy . Jin-Ho . Hong . Seung-Tae . Choi . Kyoung-Shin . 1996-01-01 . Crystal structure, magnetism and phase transformation in perovskites A2CrNbO6(A = Ca, Sr, Ba) . Journal of the Chemical Society, Faraday Transactions . en . 92 . 6 . 1051–1059 . 10.1039/FT9969201051 . 1364-5455.
  9. 1999-10-01 . Eightfold Superstructure in K2Gd2Sb2Se9 and K2La2Sb2S9 Caused by Three-Dimensional Ordering of the 5s2 Lone Pair of Sb3+ Ions . Journal of Solid State Chemistry . en . 147 . 1 . 309–319 . 10.1006/jssc.1999.8287 . 0022-4596. Choi . Kyoung-Shin . Hanko . Jason A. . Kanatzidis . Mercouri G. . 1999JSSCh.147..309C .
  10. Choi . Kyoung-Shin . Kanatzidis . Mercouri G. . 2000 . Sulfosalts with Alkaline Earth Metals. Centrosymmetric vs Acentric Interplay in Ba3Sb4.66S10and Ba2.62Pb1.38Sb4S10Based on the Ba/Pb/Sb Ratio. Phases Related to Arsenosulfide Minerals of the Rathite Group and the Novel Polysulfide Sr6Sb6S17 . Inorganic Chemistry . 39 . 25 . 5655–5662 . 10.1021/ic000632m . 11151365 . 0020-1669.
  11. Choi . Kyoung-Shin . Iordanidis . Lykourgos . Chondroudis . Konstantinos . Kanatzidis . Mercouri G. . 1997-08-01 . KThSb2Se6 and BaLaBi2Q6 (Q = S, Se) Adopt a New Structure Type Stabilized with Dichalcogenide Groups . Inorganic Chemistry . 36 . 18 . 3804–3805 . 10.1021/ic970224r . 0020-1669.
  12. Choi . Kyoung-Shin . Lichtenegger . Helga C. . Stucky . Galen D. . McFarland . Eric W. . 2002-10-01 . Electrochemical Synthesis of Nanostructured ZnO Films Utilizing Self-Assembly of Surfactant Molecules at Solid−Liquid Interfaces . Journal of the American Chemical Society . 124 . 42 . 12402–12403 . 10.1021/ja0275562 . 12381168 . 0002-7863.
  13. Choi . K.-S. . McFarland . E. W. . Stucky . G. D. . 2003 . Electrocatalytic Properties of Thin Mesoporous Platinum Films Synthesized Utilizing Potential-Controlled Surfactant Assembly . Advanced Materials . 15 . 23 . 2018–2021 . 10.1002/adma.200304557 . 2003AdM....15.2018C . 93054654 . 1521-4095.
  14. Web site: 1504 . Professor Kyoung-Shin Choi Joining UW Chemistry In Fall of 2012 . 2021-06-09 . Department of Chemistry . en-US.
  15. Web site: March 17, 2014 . Professor Kyoung-Shin Choi Named Associate Editor for Chemistry of Materials . 2021-06-09 . Department of Chemistry . en-US.
  16. Siegfried . M. J. . Choi . K.-S. . 2004-10-04 . Electrochemical Crystallization of Cuprous Oxide with Systematic Shape Evolution . Advanced Materials . en . 16 . 19 . 1743–1746 . 10.1002/adma.200400177 . 2004AdM....16.1743S . 98632540 . 0935-9648.
  17. Siegfried . Matthew J. . Choi . Kyoung-Shin . 2006-08-01 . Elucidating the Effect of Additives on the Growth and Stability of Cu 2 O Surfaces via Shape Transformation of Pre-Grown Crystals . Journal of the American Chemical Society . en . 128 . 32 . 10356–10357 . 10.1021/ja063574y . 16895387 . 0002-7863.
  18. Kim . Tae Woo . Choi . Kyoung-Shin . 2014-02-28 . Nanoporous BiVO 4 Photoanodes with Dual-Layer Oxygen Evolution Catalysts for Solar Water Splitting . Science . en . 343 . 6174 . 990–994 . 10.1126/science.1246913 . 24526312 . 2014Sci...343..990K . 29079551 . 0036-8075.
  19. Seabold . Jason A. . Choi . Kyoung-Shin . 2012-02-01 . Efficient and Stable Photo-Oxidation of Water by a Bismuth Vanadate Photoanode Coupled with an Iron Oxyhydroxide Oxygen Evolution Catalyst . Journal of the American Chemical Society . en . 134 . 4 . 2186–2192 . 10.1021/ja209001d . 22263661 . 0002-7863.
  20. Lee . Dong Ki . Choi . Kyoung-Shin . 2018 . Enhancing long-term photostability of BiVO4 photoanodes for solar water splitting by tuning electrolyte composition . Nature Energy . en . 3 . 1 . 53–60 . 10.1038/s41560-017-0057-0 . 2018NatEn...3...53L . 104248531 . 2058-7546.
  21. Lee . Dongho . Wang . Wennie . Zhou . Chenyu . Tong . Xiao . Liu . Mingzhao . Galli . Giulia . Choi . Kyoung-Shin . 2021 . The impact of surface composition on the interfacial energetics and photoelectrochemical properties of BiVO4 . Nature Energy . en . 6 . 3 . 287–294 . 10.1038/s41560-021-00777-x . 2021NatEn...6..287L . 1770734 . 233921607 . 2058-7546.
  22. Cha . Hyun Gil . Choi . Kyoung-Shin . 2015 . Combined biomass valorization and hydrogen production in a photoelectrochemical cell . Nature Chemistry . en . 7 . 4 . 328–333 . 10.1038/nchem.2194 . 25803471 . 2015NatCh...7..328C . 1755-4349.
  23. Web site: Researchers develop new approach that combines biomass conversion, solar energy conversion . 2021-12-26 . news.wisc.edu . en-US.
  24. Web site: July 7, 2021 . Kyoung-Shin Choi CV (NANO KOREA 2021, July 7~9, KINTEX, Korea) .
  25. Web site: 2019-05-08 . Kyoung-Shin Choi receives Vilas Faculty Mid-Career Investigator Award . 2021-06-14 . Department of Chemistry . en-US.
  26. Web site: Awards and Honors Department of Chemistry . 2021-06-14 . www2.chem.wisc.edu.
  27. Web site: 2016-01-08 . Professor Kyoung-Shin Choi Named Vilas Associate . 2021-06-14 . Department of Chemistry . en-US.
  28. Web site: Kuran . Simon . October 13, 2015 . Chemistry's Choi wins WARF Innovation Award College of Letters & Science, University of Wisconsin-Madison . 2021-06-09 . ls.wisc.edu.
  29. Web site: Kyoung-Shin Choi . 2021-06-09 . www.nasonline.org.
  30. Web site: May 21, 2007 . Kyoung-Shin Choi Receives ExxonMobil Fellowship . 2021-06-09 . cen.acs.org.

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