View source for Biography:Kyoung-Shin Choi

{{short description|Materials and electrochemist}}
{{family name hatnote|Choi||lang=Korean}}{{Western name order|Choi Kyoung-Shin}}
{{Infobox scientist
| name              = Kyoung-Shin Choi
| fields            = Alfred P. Sloan Research Fellowship
| workplaces        = University of Wisconsin-Madison (2012-present) <br> [[Organization:Purdue University|Purdue University]] (2002-2012) <br> [[Organization:University of California, Santa Barbara|University of California, Santa Barbara]] (2000-2002)
| alma_mater        = Seoul National University {{small | B.S. (1993) M.S. (1995) }} <br> [[Organization:Michigan State University|Michigan State University]] {{small | Ph.D. (2000) }}
| 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            = [[Chemistry:Electrochemistry|Electrochemistry]], Materials chemistry, [[Chemistry:Inorganic chemistry|Inorganic chemistry]], Nanoscience
| website           = {{url | https://choi.chem.wisc.edu/}}
}}
{{Infobox Korean name|hangul={{linktext|최경신}}<ref>{{Cite journal|last1=정덕영|last2=Iordanidis|first2=Lykourgos|last3=최경신|last4=Kanatzidis|first4=Mercouri G.|date=1998|title=Complex Chalcogenides as Thermoelectric Materials: A Solid State Chemistry Approach|url=https://www.koreascience.or.kr/article/JAKO199813464468220.page|journal=Bulletin of the Korean Chemical Society|volume=19|issue=12|pages=1283–1293|issn=0253-2964}}</ref><ref>{{Cite web|date=2005-08-28|title=여성과학기술인대회 참석 재미과학자 최경신 교수|url=https://www.hani.co.kr/arti/society/women/60369.html|access-date=2021-06-09|website=www.hani.co.kr / The Hankyoreh|language=ko}}</ref><ref>{{Cite news|last=전|first=승민|date=2005-11-08|title=700명 뚫고 美 연구과제 따낸 ''여장부''|language=ko|work=No Cut News|url=https://www.nocutnews.co.kr/news/95981|access-date=2021-06-09}}</ref>|hanja=!|mr=Ch'oe Kyŏngsin|rr=Choe Gyeongsin}}'''Kyoung-Shin Choi''' is a professor of chemistry at the University of Wisconsin-Madison.<ref>{{Cite web |title=kschoi {{!}} Department of Chemistry |url=https://www2.chem.wisc.edu/users/kschoi |access-date=2021-06-09 |website=www2.chem.wisc.edu |language=en}}</ref><ref>{{Cite web |title=Kyoung-Shin Choi {{!}} Wisconsin Energy Institute |url=https://energy.wisc.edu/about/energy-experts/kyoung-shin-choi |access-date=2021-06-09 |website=energy.wisc.edu}}</ref> 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.'''<ref name=":0">{{Cite web |date=2005-08-28 |title=여성과학기술인대회 참석 재미과학자 최경신 교수 |url=https://www.hani.co.kr/arti/society/women/60369.html |access-date=2021-06-09 |website=www.hani.co.kr / The Hankyoreh |language=ko}}</ref><ref name=":1">{{Cite news |last=전 |first=승민 |date=2005-11-08 |title=700명 뚫고 美 연구과제 따낸 ''여장부'' |language=ko |work=No Cut News |url=https://www.nocutnews.co.kr/news/95981 |access-date=2021-06-09}}</ref>''' Choi attended college at Seoul National University in {{wipe|South Korea}}, earning her B.S. (major in Food and Nutrition and minor in Chemistry) in 1993 and M.S. in 1995.'''<ref name=":0" /><ref name=":1" />''' She worked with Jin-Ho Choy on the crystal structure, pressure-induced phase transitions, and magnetism of chromium-niobium [[Chemistry:Oxide|oxide]] materials that adopt the [[Physics:Perovskite (structure)|double perovskite structure]].<ref>{{Cite journal |last1=Choy |first1=Jin-Ho |last2=Hong |first2=Seung-Tae |last3=Choi |first3=Kyoung-Shin |date=1996-01-01 |title=Crystal structure, magnetism and phase transformation in perovskites A2CrNbO6(A = Ca, Sr, Ba) |url=https://pubs.rsc.org/en/content/articlelanding/1996/ft/ft9969201051 |journal=Journal of the Chemical Society, Faraday Transactions |language=en |volume=92 |issue=6 |pages=1051–1059 |doi=10.1039/FT9969201051 |issn=1364-5455}}</ref>

For her doctoral study, Choi came to the United States in 1995.<ref name=":0" /><ref name=":1" /> She worked at [[Organization:Michigan State University|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<ref>{{Cite journal |date=1999-10-01 |title=Eightfold Superstructure in K2Gd2Sb2Se9 and K2La2Sb2S9 Caused by Three-Dimensional Ordering of the 5s2 Lone Pair of Sb3+ Ions |url=https://www.sciencedirect.com/science/article/abs/pii/S0022459699982877 |journal=Journal of Solid State Chemistry |language=en |volume=147 |issue=1 |pages=309–319 |doi=10.1006/jssc.1999.8287 |issn=0022-4596|last1=Choi |first1=Kyoung-Shin |last2=Hanko |first2=Jason A. |last3=Kanatzidis |first3=Mercouri G. |bibcode=1999JSSCh.147..309C }}</ref><ref>{{Cite journal |last1=Choi |first1=Kyoung-Shin |last2=Kanatzidis |first2=Mercouri G. |date=2000 |title=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 |url=https://pubs.acs.org/doi/full/10.1021/ic000632m |journal=Inorganic Chemistry |volume=39 |issue=25 |pages=5655–5662 |doi=10.1021/ic000632m |pmid=11151365 |issn=0020-1669}}</ref><ref>{{Cite journal |last1=Choi |first1=Kyoung-Shin |last2=Iordanidis |first2=Lykourgos |last3=Chondroudis |first3=Konstantinos |last4=Kanatzidis |first4=Mercouri G. |date=1997-08-01 |title=KThSb2Se6 and BaLaBi2Q6 (Q = S, Se) Adopt a New Structure Type Stabilized with Dichalcogenide Groups |url=https://pubs.acs.org/doi/full/10.1021/ic970224r |journal=Inorganic Chemistry |volume=36 |issue=18 |pages=3804–3805 |doi=10.1021/ic970224r |issn=0020-1669}}</ref> using the "molten polychalcogenide salt method."<ref>{{Citation |last1=Kanatzidis |first1=Mercouri G. |title=The Application of Polychalcogenide Salts to the Exploratory Synthesis of Solid State Multinary Chalcogenides at Intermediate Temperatures |date=1995 |url=https://onlinelibrary.wiley.com/doi/abs/10.1002/9780470166444.ch2 |work=Progress in Inorganic Chemistry |pages=151–265 |publisher=John Wiley & Sons, Ltd |language=en |doi=10.1002/9780470166444.ch2 |isbn=978-0-470-16644-4 |access-date=2021-06-10 |last2=Sutorik |first2=Anthony C.}}</ref>

Choi then conducted postdoctoral studies from 2000 to 2002 at the [[Organization:University of California, Santa Barbara|University of California, Santa Barbara]] with Galen D. Stucky and Eric W. McFarland. Her postdoctoral research concerned the electrochemical synthesis of nanostructured thin films.<ref>{{Cite journal |last1=Choi |first1=Kyoung-Shin |last2=Lichtenegger |first2=Helga C. |last3=Stucky |first3=Galen D. |last4=McFarland |first4=Eric W. |date=2002-10-01 |title=Electrochemical Synthesis of Nanostructured ZnO Films Utilizing Self-Assembly of Surfactant Molecules at Solid−Liquid Interfaces |url=https://doi.org/10.1021/ja0275562 |journal=Journal of the American Chemical Society |volume=124 |issue=42 |pages=12402–12403 |doi=10.1021/ja0275562 |pmid=12381168 |issn=0002-7863}}</ref><ref>{{Cite journal |last1=Choi |first1=K.-S. |last2=McFarland |first2=E. W. |last3=Stucky |first3=G. D. |date=2003 |title=Electrocatalytic Properties of Thin Mesoporous Platinum Films Synthesized Utilizing Potential-Controlled Surfactant Assembly |url=https://onlinelibrary.wiley.com/doi/abs/10.1002/adma.200304557 |journal=Advanced Materials |volume=15 |issue=23 |pages=2018–2021 |doi=10.1002/adma.200304557 |bibcode=2003AdM....15.2018C |s2cid=93054654 |issn=1521-4095}}</ref>

== Independent career ==
Choi began her independent career at [[Organization:Purdue University|Purdue University]] as an assistant professor in 2002, and was later promoted to associate professor. She was a visiting scholar at the [[Organization:National Renewable Energy Laboratory|National Renewable Energy Laboratory]] in 2008. In 2012, she moved to [[Organization:University of Wisconsin–Madison|University of Wisconsin-Madison]] as a full professor of chemistry.<ref>{{Cite web |date=1504 |title=Professor Kyoung-Shin Choi Joining UW Chemistry In Fall of 2012 |url=https://chem.wisc.edu/2011/10/01/professor-kyoung-shin-choi-joining-uw-chemistry-in-fall-of-2012/ |access-date=2021-06-09 |website=Department of Chemistry |language=en-US}}</ref>

Choi has served as an associate editor of the journal ''[[Chemistry:Chemistry of Materials|Chemistry of Materials]]'' since 2014.<ref>{{Cite web |date=March 17, 2014 |title=Professor Kyoung-Shin Choi Named Associate Editor for Chemistry of Materials |url=https://chem.wisc.edu/2014/03/17/professor-kyoung-shin-choi-named-associate-editor-for-chemistry-of-materials/ |access-date=2021-06-09 |website=Department of Chemistry |language=en-US}}</ref>

== Research ==
The Choi research group studies electrodes and catalysts for use in [[Chemistry:Photoelectrochemical process|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.<ref>{{Cite journal |last1=Siegfried |first1=M. J. |last2=Choi |first2=K.-S. |date=2004-10-04 |title=Electrochemical Crystallization of Cuprous Oxide with Systematic Shape Evolution |url=https://onlinelibrary.wiley.com/doi/10.1002/adma.200400177 |journal=Advanced Materials |language=en |volume=16 |issue=19 |pages=1743–1746 |doi=10.1002/adma.200400177 |bibcode=2004AdM....16.1743S |s2cid=98632540 |issn=0935-9648}}</ref><ref>{{Cite journal |last1=Siegfried |first1=Matthew J. |last2=Choi |first2=Kyoung-Shin |date=2006-08-01 |title=Elucidating the Effect of Additives on the Growth and Stability of Cu 2 O Surfaces via Shape Transformation of Pre-Grown Crystals |url=https://pubs.acs.org/doi/10.1021/ja063574y |journal=Journal of the American Chemical Society |language=en |volume=128 |issue=32 |pages=10356–10357 |doi=10.1021/ja063574y |pmid=16895387 |issn=0002-7863}}</ref>

The Choi group has extensively studied [[Chemistry:Bismuth vanadate|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.<ref>{{Cite journal |last1=Kim |first1=Tae Woo |last2=Choi |first2=Kyoung-Shin |date=2014-02-28 |title=Nanoporous BiVO 4 Photoanodes with Dual-Layer Oxygen Evolution Catalysts for Solar Water Splitting |url=https://www.science.org/doi/10.1126/science.1246913 |journal=Science |language=en |volume=343 |issue=6174 |pages=990–994 |doi=10.1126/science.1246913 |pmid=24526312 |bibcode=2014Sci...343..990K |s2cid=29079551 |issn=0036-8075}}</ref><ref>{{Cite journal |last1=Seabold |first1=Jason A. |last2=Choi |first2=Kyoung-Shin |date=2012-02-01 |title=Efficient and Stable Photo-Oxidation of Water by a Bismuth Vanadate Photoanode Coupled with an Iron Oxyhydroxide Oxygen Evolution Catalyst |url=https://pubs.acs.org/doi/10.1021/ja209001d |journal=Journal of the American Chemical Society |language=en |volume=134 |issue=4 |pages=2186–2192 |doi=10.1021/ja209001d |pmid=22263661 |issn=0002-7863}}</ref> The Choi group has also studied the stability of the bismuth vanadate catalyst,<ref>{{Cite journal |last1=Lee |first1=Dong Ki |last2=Choi |first2=Kyoung-Shin |date=2018 |title=Enhancing long-term photostability of BiVO4 photoanodes for solar water splitting by tuning electrolyte composition |url=https://www.nature.com/articles/s41560-017-0057-0 |journal=Nature Energy |language=en |volume=3 |issue=1 |pages=53–60 |doi=10.1038/s41560-017-0057-0 |bibcode=2018NatEn...3...53L |s2cid=104248531 |issn=2058-7546}}</ref> as well as the effects of surface composition on the interfacial energetics of photoelectrochemical catalysis.<ref>{{Cite journal |last1=Lee |first1=Dongho |last2=Wang |first2=Wennie |last3=Zhou |first3=Chenyu |last4=Tong |first4=Xiao |last5=Liu |first5=Mingzhao |last6=Galli |first6=Giulia |last7=Choi |first7=Kyoung-Shin |date=2021 |title=The impact of surface composition on the interfacial energetics and photoelectrochemical properties of BiVO4 |url=https://www.nature.com/articles/s41560-021-00777-x |journal=Nature Energy |language=en |volume=6 |issue=3 |pages=287–294 |doi=10.1038/s41560-021-00777-x |bibcode=2021NatEn...6..287L |osti=1770734 |s2cid=233921607 |issn=2058-7546}}</ref>

In one report, Choi and coworkers developed a [[Chemistry:Photoelectrochemical cell|photoelectrochemical cell]] (PEC), a device that can split water into hydrogen and oxygen given inputs of light and electricity. PECs are promising devices for [[Chemistry:Hydrogen production|hydrogen production]], for use in a [[Physics:Hydrogen economy|hydrogen economy]]. However, the [[Physics:Anode|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 [[Chemistry:Hydroxymethylfurfural|5-hydroxymethylfurfural]] (HMF) to [[Chemistry:2,5-Furandicarboxylic acid|2,5-furandicarboxylic acid]] (FDCA).<ref>{{Cite journal |last1=Cha |first1=Hyun Gil |last2=Choi |first2=Kyoung-Shin |date=2015 |title=Combined biomass valorization and hydrogen production in a photoelectrochemical cell |url=https://www.nature.com/articles/nchem.2194 |journal=Nature Chemistry |language=en |volume=7 |issue=4 |pages=328–333 |doi=10.1038/nchem.2194 |pmid=25803471 |bibcode=2015NatCh...7..328C |issn=1755-4349}}</ref> This allows them to generate FDCA, a valuable commodity chemical used in plastic production, from HMF, which can be derived from [[Chemistry:Cellulose|cellulose]].<ref>{{Cite web |title=Researchers develop new approach that combines biomass conversion, solar energy conversion |url=https://news.wisc.edu/researchers-develop-new-approach-that-combines-biomass-conversion-solar-energy-conversion/ |access-date=2021-12-26 |website=news.wisc.edu |language=en-US}}</ref>

== Awards<ref>{{Cite web |date=July 7, 2021 |title=Kyoung-Shin Choi CV (NANO KOREA 2021, July 7~9, KINTEX, Korea) |url=https://sympo.nanokorea.or.kr/upload/speakers/1622002838_ylW_ECB59CEAB2BDEC8BA0.pdf }}</ref> ==
* 2023: Ho-Am Prize in Science chemistry and life sciences
* 2019 UW-Madison Villas Faculty Mid-Career Investigator Award<ref>{{Cite web |date=2019-05-08 |title=Kyoung-Shin Choi receives Vilas Faculty Mid-Career Investigator Award |url=https://chem.wisc.edu/2019/05/08/kyoung-shin-choi-receives-vilas-faculty-mid-career-investigator-award/ |access-date=2021-06-14 |website=Department of Chemistry |language=en-US}}</ref>
* 2018 Michigan State University Alumni Lectureship Award
* 2018 Student Selected ECS Speaker ([[Organization:Indiana University|Indiana University]])<ref>{{Cite web |title=Awards and Honors {{!}} Department of Chemistry |url=https://www2.chem.wisc.edu/awards/kschoi |access-date=2021-06-14 |website=www2.chem.wisc.edu}}</ref>
* 2017 MIT Student-Invited Inorganic Seminar Speaker
* 2016 UW-Madison Villas Associate Award<ref>{{Cite web |date=2016-01-08 |title=Professor Kyoung-Shin Choi Named Vilas Associate |url=https://chem.wisc.edu/2016/01/08/professor-kyoung-shin-choi-named-vilas-associate/ |access-date=2021-06-14 |website=Department of Chemistry |language=en-US}}</ref>
* 2015 Wisconsin Alumni Research Foundation (WARF) Innovation Award<ref>{{Cite web |last=Kuran |first=Simon |date=October 13, 2015 |title=Chemistry's Choi wins WARF Innovation Award {{!}} College of Letters & Science, University of Wisconsin-Madison |url=https://ls.wisc.edu/news/chemistrys-choi-wins-warf-innovation-award |access-date=2021-06-09 |website=ls.wisc.edu}}</ref>
* 2015 Camille and Henry Dreyfus Environmental Chemistry Mentor
* 2014 University Housing Honored Instructor
* 2014 Speaker for the Stanford Distinguished Women in Science Colloquia Series
* 2014 Chair, Gordon Research Conference-Electrodeposition
* 2013 Kavli Frontiers of Science Fellow (National Academy of Sciences)<ref>{{Cite web |title=Kyoung-Shin Choi |url=http://www.nasonline.org/programs/kavli-frontiers-of-science/frontiers-alumni/alumni-directory/kyoung-shin-choi.html |access-date=2021-06-09 |website=www.nasonline.org}}</ref>
* 2011 Chair, ACS-Division of Inorganic Chemistry, Solid State Subdivision
* 2011 Volume Organizer of Materials Research Society Bulletin
* 2011 University Faculty Scholar, [[Organization:Purdue University|Purdue University]]
* 2010 Iota Sigma Pi Agnes Fay Morgan Research Award
* 2008 [[Organization:Purdue University|Purdue]] College of Science Outstanding Undergraduate Teaching Award by an Assistant Professor
* 2007 ACS-ExxonMobil Solid State Chemistry Faculty Fellowship<ref>{{Cite web |date=May 21, 2007 |title=Kyoung-Shin Choi Receives ExxonMobil Fellowship |url=https://cen.acs.org/articles/85/i21/Kyoung-Shin-Choi-Receives-ExxonMobil.html |access-date=2021-06-09 |website=cen.acs.org}}</ref>
* 2006 ACS PROGRESS/Dreyfus Lectureship award, American Chemical Society
* 2006 Alfred P. Sloan Research Fellowship, [[Organization:Alfred P. Sloan Foundation|Alfred P. Sloan Foundation]]

== References ==
<references />

== External links ==
* {{google scholar id|ABdB0EUAAAAJ}}


{{DEFAULTSORT:Choi, Kyoung-Shin}}
[[Category:Electrochemists]]

{{Sourceattribution|Kyoung-Shin Choi}}