Updated on 2024/12/24

写真a

 
MOTOYAMA MUNEKAZU
 
Organization
Kyushu University Platform of Inter/Transdisciplinary Energy Research Associate Professor
Kyushu University Platform of Inter/Transdisciplinary Energy Research (Concurrent)
Title
Associate Professor
Contact information
メールアドレス
Tel
0925837798
Profile
エネルギー研究教育機構、研究推進部門のサブコーディネーターとして、コーディネーター等と協力しながら、クラスターならびにモジュールを跨ぐ学際的研究、教育、産学官連携の企画、調整、支援に取り組んでいます。
External link

Research Areas

  • Nanotechnology/Materials / Nanomaterials

  • Nanotechnology/Materials / Composite materials and interfaces

Degree

  • Dr. (Energy Science)

Research History

  • Kyushu University Platform of Inter/Transdisciplinary Energy Research Associate Professor 

    2022.4 - Present

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  • Nagoya University Graduate School of Engineering Materials Design Innovation Engineering Lecturer 

    2015.4 - 2022.3

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  • 名古屋大学(2013.1〜2022.3)   

Education

  • Kyoto University   Graduate School of Energy Science   Department of Fundamental Energy Science

    - 2006.9

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    Country:Japan

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Research Interests・Research Keywords

  • Research theme: Developments of Energy Conversion Devices Based on Materials Science, Electrochemistry, and Nanotechnology

    Keyword: Electrochemistry, Crystal Growth, Surface and Interface Science, All-Solid-State Battery, Nanomaterial Science

    Research period: 2022.4

Awards

  • 2018年電池技術委員会賞

    2018.11   電池技術委員会  

  • Best Oral Presentation Award for Symposium A02 "Challenges in Advanced Analytical Tools and Techniques for Batteries: in Honor of Prof. Zempachi Ogumi" (PRiME2016, Honolulu, HI)

    2016.10   The Electrochemical Society  

  • 2015年電気化学会東海支部若手研究者特別賞

    2015.2   電気化学会東海支部  

  • Best Poster Award for the "4th International Symposium on Electrochemical Processing of Tailored Materials" (Kyoto, Japan)

    2005.10   Organizing Committee of the "4th International Symposium on EPTM"  

Papers

  • Electrochemical lithium-ion insertion/extraction reactions of multilayered graphene with random twist angles Reviewed

    Satoshi Yamamoto, Ryotaro Sakakibara, Soichi Shima, Shinsuke Matsuura, Takeshi Yajima, Munekazu Motoyama, Wataru Norimatsu, Yuta Kimura, Koji Amezawa, Yasutoshi Iriyama

    Chemical Communications   60 ( 99 )   14790 - 14793   2024.12   ISSN:1359-7345 eISSN:1364-548X

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Royal Society of Chemistry (RSC)  

    A multilayer graphene film with random twist angles between layers (TAGr) on SiC(0001̄) shows six pairs of redox peaks for Li+ insertion/extraction reaction.

    DOI: 10.1039/d4cc04441j

    DOI: 10.1039/d4cc04441j

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    Other Link: https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=kikir2023&SrcAuth=WosAPI&KeyUT=WOS:001362010500001&DestLinkType=FullRecord&DestApp=WOS_CPL

  • Uncovering the Dynamics of Li-Au Alloying and Li Nucleation at the Au/LiPON Interface with In Situ Z Contrast and Surface Roughness Contrast Imaging via Scanning Electron Microscopy Reviewed

    Motoyama, M; Shimizu, K; Kimura, T; Yamamoto, T; Watanabe, S; Iriyama, Y

    JACS Au   4 ( 12 )   4700 - 4714   2024.12   eISSN:2691-3704

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:JACS Au  

    Controlling the nucleation, growth, and dissolution of Li is crucial for the high cycling stability in rechargeable Li metal batteries. The overpotential for Li nucleation (ηnc) on Li alloys such as Li-Au is generally lower than that on metal current collectors (CCs) with very limited Li solubility like Cu. However, the alloying process of CC and its impact on the Li nucleation kinetics remain unclear. Herein, we experimentally investigate the Li nucleation mechanism on Li-Au alloys using scanning electron microscopy with multiple detectors to distinguish the atomic number and topography contrast. Nonequilibrium processes near the Au CC film/lithium phosphorus oxynitride (LiPON) glass electrolyte interface were observed. Local dissolution of Li occurs concurrently with the Li plating process. This phenomenon indicates that Li nucleates as a metastable phase in Li-Au alloy CC films during Li plating due to the substantially lower interfacial energy of Li with the alloy phase. This low interfacial energy also leads to a low ηnc. Moreover, the local Li redissolution process results in a nonrandom spatial distribution of Li growth sites. Consequently, the alloy layer acts as a buffer, facilitating a more uniform distribution of the reaction sites.

    DOI: 10.1021/jacsau.4c00530

    DOI: 10.1021/jacsau.4c00530

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  • Synergistic Impact of Alloying with Ni on Cu Cathode Interfaces for Fluoride Batteries Reviewed

    Motoyama, M.; Sakurai, K.; Nakagawa, T.; Nakatani, T.; Kiuchi, H.; Nakanishi, K.; Fujinami, S.; Yamamoto, T.; Ogumi, Z.; Abe, T.

    ACS Applied Materials & Interfaces   16 ( 40 )   53631 - 53642   2024.9   ISSN:1944-8244 eISSN:1944-8252

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    Authorship:Lead author, Corresponding author   Language:English   Publishing type:Research paper (scientific journal)   Publisher:ACS Applied Materials and Interfaces  

    All-solid-state fluoride batteries have the potential to achieve energy densities significantly higher than those of lithium-ion batteries. A common cathode material for fluoride batteries is Cu. Cu has a low polarization, but its rapid capacity degradation due to grain growth and subsequent delamination from the solid-state electrolyte are critical issues. To enhance the performance of Cu-based cathodes in all-solid-state fluoride batteries, we explore alloying of Cu with Ni to create metastable solid solution phases (CuxNi1-x with x = 0, 0.32, 0.52, 0.72, 0.89, and 1.0). Compared to Cu, Ni has a higher polarization but exhibits superior capacity retention. The Cu0.72Ni0.28 alloy demonstrates a polarization as low as Cu, but it has a significantly improved capacity retention, which is comparable to Ni. Transmission electron microscopy observations demonstrate that the thin Ni-rich region formed near the interface inhibits Cu grain growth and delamination from the LaF3 electrolyte. By incorporating an appropriate amount of Ni into Cu, Cu-Ni alloy films combine the advantages of both metals, improving the performance of fluoride batteries.

    DOI: 10.1021/acsami.4c06502

    DOI: 10.1021/acsami.4c06502

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  • Electrochemical Lithium-Ion Insertion/Extraction Reactions of Multilayered Graphene with Random Twist Angles Reviewed

    Satoshi Yamamoto, Ryotaro Sakakibara, Soichi Shima, Shinsuke Matsuura, Takeshi Yajima, Munekazu Motoyama, Yuta Kimura, Koji Amezawa, Wataru Norimatsu, and Yasutoshi Iriyama

    Chemical Communications   2024

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    Language:English   Publishing type:Research paper (scientific journal)  

  • "In situ microscopy techniques for understanding Li plating and stripping in solid-state batteries" Invited Reviewed International journal

    Motoyama, M.

    Microscopy   73 ( 2 )   184 - 195   2023.12   ISSN:2050-5698 eISSN:2050-5701

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    Language:English   Publishing type:Research paper (scientific journal)   Publisher:Microscopy  

    Solid-state batteries have potential to realize a rechargeable Li-metal anode. However, several challenges persist in the charging and discharging processes of the Li-metal anode, which require a fundamental understanding of Li plating and stripping across the interface of solid-state electrolytes (SEs) to address. This review overviews studies on Li-metal anodes in solid-state batteries using in situ observation techniques with an emphasis on Li electrodeposition and dissolution using scanning electron microscopy and SEs such as lithium phosphorus oxynitride and garnet-type compounds such as Li7La3Zr2O12. The previous research is categorized into three topics: (i) Li nucleation, growth and dissolution at the anode-free interface, (ii) electrochemical reduction of SE and (iii) short-circuit phenomena in SE. The current trends of each topic are summarized.

    DOI: 10.1093/jmicro/dfad058

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Books

  • 「全固体リチウム電池の開発動向と応用展望」(辰巳砂昌弘,林晃敏監修)第5章 酸化物系無機固体電解質を介したLi金属の析出溶解機構

    @#B本山宗主#BR,入山恭寿(Role:Joint author)

    シーエムシー出版  2019.6 

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    Responsible for pages:pp. 167-178   Language:Japanese   Book type:Scholarly book

  • 「エアロゾルデポジション法の新展開 −常温衝撃固化現象活用の最前線−」(明渡純監修)第18章 酸化物全固体リチウム二次電池の開発

    入山恭寿,@#B本山宗主#BR,山本貴之(Role:Joint author)

    シーエムシー出版  2019.2 

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    Responsible for pages:pp. 248-259   Language:Japanese   Book type:Scholarly book

  • 「全固体電池の基礎理論と開発最前線」(菅野了次監修)第8章 無機固体電解質上のLiの析出溶解反応のin-situ SEM観察

    @#B本山宗主#BR,入山恭寿(Role:Joint author)

    シーエムシー・リサーチ  2018.7 

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    Responsible for pages:pp. 106-118   Language:Japanese   Book type:Scholarly book

  • 「全固体電池のイオン伝導性向上技術と材料、製造プロセスの開発」第11章 LiPONガラス電解質上で起こるLiの核生成・成長過程のその場走査型電子顕微鏡観察

    @#B本山宗主#BR(Role:Sole author)

    技術情報協会  2017.2 

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    Responsible for pages:pp. 459-465   Language:Japanese   Book type:Scholarly book

Presentations

  • "(Invited) Critical current densities for short-circuiting of solid-state electrolytes" Invited International conference

    Kurose, R.; Iriyama, Y.; @#BMotoyama, M.#BR

    2024 MRS Spring Meeting & Exhibit  2024.5 

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    Event date: 2024.5

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Seattle, WA   Country:United States  

  • "(Invited) Critical current densities for short-circuiting of solid-state electrolytes" Invited International conference

    Kurose, R.; Iriyama, Y.; <b>Motoyama, M.</b>

    <i>2024 MRS Spring Meeting & Exhibit</i>  2024.5 

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    Event date: 2024.5

    Language:English  

    Venue:Seattle, WA   Country:United States  

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  • "Electrochemical performance of Cu-Alloy cathodes for thin-film-all-solid-state-fluoride batteries" International conference

    @#BMotoyama, M.#BR; Nakagawa, T.; Ogumi, Z.; Abe, T.

    3rd Nucleation and Growth Research Conference  2023.11 

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    Event date: 2023.11

    Language:English   Presentation type:Oral presentation (general)  

    Venue:関西セミナーハウス、京都市   Country:Japan  

  • "Electrochemical performance of Cu-Alloy cathodes for thin-film-all-solid-state-fluoride batteries" International conference

    <b>Motoyama, M.</b>; Nakagawa, T.; Ogumi, Z.; Abe, T.

    3rd Nucleation and Growth Research Conference  2023.11 

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    Event date: 2023.11

    Language:English  

    Venue:関西セミナーハウス、京都市   Country:Japan  

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  • “(招待)フッ化物電池のための高機能正極活物質の開発” Invited

    @#B本山宗主#BR,中川 嵩士,小久見 善八,安部 武志

    電気化学会九州支部・令和5年度秋季講演会  2023.10 

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    Event date: 2023.10

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:長崎大学   Country:Japan  

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MISC

  • “アンチペロブスカイト型結晶構造を有する低融点固体電解質の研究開発” Reviewed

    山本貴之,@#B本山宗主#BR,入山恭寿

    月刊 車載テクノロジー 2021年3月号   2021.3

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • “エアロゾルデポジションを活用した酸化物全固体電池の研究開発” Reviewed

    山本貴之,@#B本山宗主#BR,入山恭寿

    粉体および粉末冶金   2020.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.2497/jjspm.67.200

  • “酸化物系全固体Li 電池におけるLi金属負極の課題” Reviewed

    @#B本山宗主#BR,山本貴之,入山恭寿

    工業材料   2020.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

  • “全固体Li 電池の高性能化に向けた固体電解質の短絡機構の解明” Reviewed

    @#B本山宗主#BR,山本貴之,入山恭寿

    応用物理   2020.4

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.11470/oubutsu.89.4_213

  • “酸化物系無機固体電解質を介したLi金属の析出溶解機構” Reviewed

    @#B本山宗主#BR,入山恭寿

    電気化学   2018.12

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    Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (scientific journal)  

    DOI: 10.5796/denkikagaku.18-FE0028

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Industrial property rights

Patent   Number of applications: 1   Number of registrations: 1
Utility model   Number of applications: 0   Number of registrations: 0
Design   Number of applications: 0   Number of registrations: 0
Trademark   Number of applications: 0   Number of registrations: 0

Professional Memberships

  • Materials Research Society (MRS)

  • The Electrochemical Society (ECS)

  • Japan Society of Applied Physics

  • The Electrochemical Society of Japan

  • Materials Research Society

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Committee Memberships

  • 九州大学   九州脱炭素化研究会(Q-DeCS)運営委員  

    2023.2   

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    Committee type:Other

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  • 九州大学   研究推進部門サブコーディネーター  

    2022.4   

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    Committee type:Other

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Academic Activities

  • 電気化学

    2023.4 - Present

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    Type:Academic society, research group, etc. 

  • <i>電気化学</i>

    Role(s): Review, evaluation

    2023.4

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    Type:Peer review 

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  • Ionics International contribution

    2023.2 - Present

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    Type:Academic society, research group, etc. 

  • <i>Ionics</i> International contribution

    Role(s): Review, evaluation

    2023.2

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    Type:Peer review 

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  • Screening of academic papers

    Role(s): Peer review

    2023

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    Type:Peer review 

    Number of peer-reviewed articles in foreign language journals:19

    Number of peer-reviewed articles in Japanese journals:0

    Proceedings of International Conference Number of peer-reviewed papers:0

    Proceedings of domestic conference Number of peer-reviewed papers:0

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Research Projects

  • Development of an Electrochemical Cell for Versatile Operando Measurement by Simultaneous Ink Jetting of Multiple Types of Particles

    Grant number:24K21811  2024.6 - 2026.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Challenging Research (Exploratory)

    本山 宗主, 渡邉 賢

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    Grant type:Scientific research funding

    無機固体電解質(SE)を利用したデバイスの実用化研究を進める中で、解析に適した実験系の構築は重要となる。合剤電極を用いた全固体電池(SEの両側に正極と負極を接合させた蓄電池)のoperando計測を微小スケールで行う場合は、合剤電極の一部のみを測定することになる。そのため、測定外領域の影響を考慮できない。本研究では、電極活物質とSEの異種粒子を混合分散させた溶液をインクに用い、基板上に負極、SE、正極が高精度に配置された微小固体電気化学セルを描画作製する。これにより、合剤電極を用いた系でも正極の端から負極の端にいたる全領域にわたり、ラマン分光装置などを用い、一括でoperando計測できる。

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  • ⚫︎ JST 革新的GX技術創出事業(GteX):高エネルギー密度・高安全な硫化物型全固体電池の開発/全固体リチウム金属電池の高性能化に向けた材料力学的アプローチ

    2023.10

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    Authorship:Collaborating Investigator(s) (not designated on Grant-in-Aid) 

  • 全固体リチウム金属電池の高性能化に向けた材料力学的アプローチ

    2023 - 2033

    JST「革新的GX技術創出事業(GteX)」:高エネルギー密度・高安全な硫化物型全固体電池の開発

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    Authorship:Principal investigator  Grant type:Contract research

  • ⚫︎ JSPS科研費 基盤研究(B):Li/酸化物系固体電解質界面の電荷移動抵抗・親和性・電気化学的安定性の包括的理解

    2022.4 - 2025.3

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    Authorship:Principal investigator 

  • Comprehensive Understanding of Charge Transfer Resistance, Affinity, and Electrochemical Stability of the Li/Oxide-Solid-State Electrolyte Interface

    Grant number:23K23446  2022.4 - 2025.3

    Grants-in-Aid for Scientific Research  Grant-in-Aid for Scientific Research (B)

    本山 宗主

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    Grant type:Scientific research funding

    本研究課題で用いる“固体電解質(SE)”という言葉は、「Liイオン(Li+)が伝導する固体の無機化合物」を指す。本研究では、Li金属とSEから成る固固界面の「Li = Li+ + e- の反応のエネルギー障壁の高さ」、「界面の親和性」、「SEの耐還元性」の三つの性質の相関を原子・分子スケールの視点から理解する。実験には、Li2S-P2S5系ガラス電解質、アルジロダイト型Li6PS5ClなどのSEを用い、Li金属との界面に対し、高真空下での接触角測定などを行う。最終的に、Li金属とSEの界面の特徴を記述できる指標・変数を見出し、a priori な(経験に先立つ)界面設計の指針を構築する。

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Educational Activities

  • エネルギー研究教育機構、教育推進部門と協力し、(1) エネルギー教育プログラムの企画、開発、運営、(2) 本学教員や企業等との連携による大学院生、学術研究員等のキャリアパス形成支援、に取り組んでいます。

Class subject

  • 新エネルギー工学

    2023.12 - 2024.2   Winter quarter

  • 脱炭素エネルギー概論

    2023.4 - 2023.6   Spring quarter

FD Participation

  • 2023.10   Role:Participation   Title:先導物質化学研究所FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2023.2   Role:Participation   Title:先導物質化学研究所FD

    Organizer:[Undergraduate school/graduate school/graduate faculty]

  • 2022.4   Role:Participation   Title:令和4年度 第1回全学FD(新任教員の研修)

    Organizer:University-wide

Visiting, concurrent, or part-time lecturers at other universities, institutions, etc.

  • 2022  名古屋大学・工学部, 招へい教員  Domestic/International Classification:Japan 

Social Activities

  • 平成30年度 豊西総合大学

    愛知県立豊田西高等学校  2018.11

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    Audience:Infants, Schoolchildren, Junior students, High school students

    Type:Seminar, workshop

  • 平成30年度 豊西総合大学

    愛知県立豊田西高等学校  2018.11

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    Type:Seminar, workshop

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  • 技術情報協会主催セミナー「全固体電池、固体電解質の観察、評価技術」

    技術情報協会  2018.2

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    Audience:General, Scientific, Company, Civic organization, Governmental agency

    Type:Seminar, workshop

  • 技術情報協会主催セミナー「全固体電池、固体電解質の観察、評価技術」

    技術情報協会  2018.2

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    Type:Seminar, workshop

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Travel Abroad

  • 2009.2 - 2011.2

    Staying countory name 1:United States   Staying institution name 1:University of California, Berkeley

  • 2007.10 - 2012.12

    Staying countory name 1:United States   Staying institution name 1:Stanford University