Tsutsumi's group (Energy & Functional Materials), Yamaguchi University

Only one week was remained in "2018."
We had lab cleaning before the Year-end.
And, we had makeup of laboratory after an interval of 5 years.

At night, we had a year-end party at "YORO-NO-TAKI."


(The picture was taken at Illuminations Square in front of Ube-Shinakawa station!)


Everyone, Thank you for your hard work!
Let's continue our success in 2019!
Have a great new year!

We attended Student Mixer to facilitate exchange between 3rd year undergrads and grad students at the department of applied chemistry.

During the Student Mixer, long-rope jump tournament over chemistry department labs was held.
Surprisingly, our lab got Champion belt!
This is the second belt we got through this event held every years.

　

　　

Prof. Tsutsumi had 58th birthday on Dec. 2.
Lab. members celebrated!

Prof. Katayama visited Prof. Yang Shao-Horn's group at Massachusetts Institute of Technology.
Great to see everyone in the lab!
Also, thanks for joining the MIT special seminar on "An In Situ Surface-Enhanced Infrared Adsorption Spectroscopy (SEIRAS) Study of Surface (Electro)chemistry of CO2 on Pt surface".
We very much look forward to working with you in the years to come.

We attended "2018 MRS Fall Meetings & Exhibit", which is one of the biggest international conference.
The conference held in Boston, Massachusetts.

Location; Hynes Convention Center, Sheraton Boston Hotel(Boston)
Attendee; Yuta Kemmizaki, Yu Katayama

<Oral>
Nov. 27
ET06.05.03 "Redox Active Glyme-Li Salt Solvate Ionic Liquids Based on Tetrahalogeno-ferrate(III) Complex as a Catholyte for Lithium Secondary Batteries” Yuta Kemmizaki, Yu Katayama, Hiromori Tsutsumi, Kazuhide Ueno(Yokohama Natl. Univ.)
ET10.06.04 "Non-Covalent Interactions in the Solvation Shell of One-Electron Electron Transfer Reactions” Botao Huang(MIT), Sokseiha Muy(MIT), Shuting Feng(MIT), Yu Katayama, Yi-Chun Lu(The Chinese University of Hong Kong), Gang Chen(MIT), Yang Shao-Horn(MIT)
Nov. 28
CM03.14.04 "Electrode-Electrolyte Reactivity Trends and Coatings Screening at Positive Electrodes in Li-Ion Batteries” Livia Giordano(MIT), Pinar Karayaylali(MIT), Yang Yu(MIT), Yu Katayama, Soo Kim(MIT), Yirui Zhang(MIT), Nenian Charles(MIT), Sokseiha Muy(MIT), Filippo Maglia(BMW group technology office USA), Isaac Lund(BMW group), Yang Shao-Horn(MIT)
Nov. 29
ET03.11.08 “Anion-Exchange Membrane Fuel Cells with Improved CO2-Tolerance—Impact of Chemically Induced Bicarbonate Ion Consumption” Yu Katayama, Kosuke Yamauchi(MIT), Kohei Hayashi(Kyoto Univ.), Takeou Okanishi(Kyoto Univ.), Hiroki Muroyama(Kyoto Univ.), Toshiaki Matsui(Kyoto Univ.), Yuuki Kikkawa(Tokuyama Co.), Takayuki Negishi(Tokuyama Co.), Shin Watanabe(Tokuyama Co.) , Takenori Isomura(Tokuyama Co.), Koichi Eguchi(Kyoto Univ.)

　

We have attended 2018 CSJ Chugoku-Shikoku Branch Meeting in Ehime.

Location: Johoku Campus of Ehime Univ.(Matsuyama)
Attendee: Keitaro Hashimoto, Michika Kijima, Seiko Hirata, Geihi Luo, Yu Katayama

<Oral>
Nov. 17
1A-03「電界紡糸法により調製したCuO/Fe3O4チューブの 色素の分解触媒への応用」
Michika Kijima, Yu Katayama, Hiromori Tsutsumi
1C-12「長鎖アルケニル化合物と硫黄からなる共重合体の 合成とその銅防食剤への応用」
Geihi Luo, Yu Katayama, Kazuhide Ueno (Yokohama Natl. Univ.), Hiromori Tsutsumi
<Poster>
Nov. 17
1P-089「側鎖にアルキル鎖を有するポリオキセタ ン誘導体を用いたポリマー電解質の特性評価」
Seiko Hirata, Ryansu Sai, Kazuhide Ueno (Yokohama Natl. Univ.), Yu Katayama, Hiromori Tsutsumi
Nov. 18
2P-028「有機硫黄化合物を正極材料とする Li-S 電 池における硫黄鎖長の電池特性への影響」
Keitaro Hashimoto, Yu Katayama, Hiromori Tsutsumi

　　



(We also enjoyed eating and drinking!)

We have attended the SPSJ Chugoku-Shikoku Branch Workshop for Young Researchers in Hiroshima.
It was a great opportunity to learn how to explain your work, or how to communicating with other researchers especially for the first time conference attendees.

　　

We also organized mini-quiz competition at the banquet, which went pretty well!
It was a great way for students to meet other students and to have personal interactions with faculty.



Location: JSM ASTERPLAZA (Hiroshima)
Attendee: Ryutaro Isobe, Seiko Hirata, Geihi Luo, Nanami Uesugi, Yukio Daikubara, Keitaro Hashimoto, Koki Yamada, Natsuho Kazahaya, Tomofumi Soma, Riho Matsuoka, Noriyuki Matsumura, Morinaga, Shohei Yuasa, Yu Katayama

<Poster>
Nov. 1
PA13「ポリオキセタンへの無機ナノ粒子複合化による高強度ポリマー電解質の創成」
Ryutaro Isobe, Ryansu Sai, Kazuhide Ueno (Yokohama Natl. Univ.), Yu Katayama, Hiromori Tsutsumi
PA14 「ポリエーテル系樹脂残存型エッジ剥離黒鉛のリチウム硫黄電池正極への応用」
Nanami Uesugi, Yu Katayama, Hiroyuki Nakatani (Sekisui Chemical Co.), Shoji Nozato (Sekisui Chemical Co.), Hiroyuki Nomoto (Sekisui Chemical Co.), Hiromori Tsutsumi
PA15「側鎖にシアノエトキシ基を有するポリエーテルのリチウムイオン電池電解質への応用とその特性評価」
Koki Yamada, Ryutaro Isobe, Ryansu Sai, Yu Katayama, Hiromori Tsutsumi
PA16「リチウムポリマー電池に向けた側鎖極性基を有するエーテル系ポリマーの合成とその特性評価」
Shohei Yuasa, Ryansu Sai, Koki Yamada, Yu Katayama, Hiromori Tsutsumi
PB13「ポリオキセタン系電解質における側鎖アルキル鎖長のリチウムイオン輸送特性への影響」
Seiko Hirata, Ryansu Sai, Kazuhide Ueno (Yokohama Natl. Univ.), Yu Katayama, Hiromori Tsutsumi
PB14「ビスマスを表面修飾したポリアニリン極細繊維の調製とその特性評価」
Yukio Daikubara, Yu Katayama, Hiromori Tsutsumi
PB15「ニトリル基を有するポリエーテル系電解質における側鎖エーテル基の物性とその寄与」
Tomofumi Soma, Ryansu Sai, Yu Katayama, Hiromori Tsutsumi
Nov. 2
PC13「ポリスルフィド結合を主鎖に有する共重合体の側鎖アルキル鎖長が銅防食性能に与える影響」
Geihi Luo, Yu Katayama, Kazuhide Ueno (Yokohama Natl. Univ.), Hiromori Tsutsumi
PC14「種々の硫黄鎖長をもつ有機硫黄化合物のリチウム硫黄電池正極材料への応用」
Keitaro Hashimoto, Yu Katayama, Hiromori Tsutsumi
PC15「添加塩アニオンサイズがポリオキセタン系電解質でのリチウムイオン輸送特性に与える影響」
Riho Matsuoka, Koki Yamada, Ryansu Sai, Yu Katayama, Hiromori Tsutsumi


(After the Meeting, we enjoyed eating Hiroshima special seafood!)

　

Prof. Katayama visited Prof. Ifan E. L. Stephen’s group at Imperial College London and presented a seminar on “Atomic Scale Understanding of the Electrochemical Interfaces：an In Situ Surface-Enhanced Infrared Adsorption Spectroscopy (SEIRAS)”.
Looking forward to many years of collaboration!

Prof. Katayama is appointed as a Visiting Researcher in Prof. Ib Chorkendorff’s group at Technical University of Denmark. Looking forward to a fruitful collaboration!

Location: Kakuma Campus, Kanazawa University
Attendee: Nanami Uesugi, Ryutaro Isobe, Yuta Kemmizaki, Yu Katayama


<Oral>
Sep. 26
2F01 「層間を有する高分散性エッジ剥離黒鉛への硫黄導入法の検討とそのLiS電池正極としての応用」
Nanami Uesugi, Yu Katayama, Shoji Nozato (Sekisui Chemical Co.), Kazuhide Ueno (Yokohama Natl. Univ.), Hiromori Tsutsumi
2F08 「Tetrahalogene-ferrate(III)を錯アニオンとする溶媒和イオン液体の特性評価及び機能性電解質への応用」
Yuta Kemmizaki, Yu Katayama, Hiromori Tsutsumi, Kazuhide Ueno (Yokohama Natl. Univ.)
2F27 「酸化物ナノ粒子複合型ポリオキセタン電解質の(電気)化学的特性評価」
Ryutaro Isobe, Ryansu Sai, Yu Katayama, Hiromori Tsutsumi

We enjoyed various "GORGEOUS" foods at Kanazawa! !

　

We had lab cleaning before the summer break.
After the lab cleaning, we had a drinking party at "Yakiniku Hiroba BONBON."
(Yakiniku is a kind of BBQ held indoors.)

Ph.D. candidate Ryansu Sai participated the International Symposium on Polymer Electrolyte "ISPE" and won the Journal of Materials Chemistry A Poster Prize! Congrats!
The poster summarizes the unique physical properties of polyether electrolyte with nitrile group side chain .


Celebrating with previous member as well as one of the co-authors of this work, Prof. Kazuhide Ueno (Yokohama Natl. Univ.).

Location: Yokohama Symposia
Attendee: Ryansu Sai

<Poster>
Jun. 25
P1-10 "Contribution of ethyl group in poly(oxetane) electrolytes having nitrile groups in their side chain" Ryansu Sai, Kazuhide Ueno (Yokohama Natl. Univ.), Yu Katayama, Hiromori Tsutsumi

We shared our work at the International Meeting on Lithium Battery "IMLB", known as one of the largest conferences related to Lithium Ion Battery.

Location: Kyoto International Conference Center
Attendee: Ryansu Sai, Yu Katayama

<Poster>
Jun. 18
P241 "The Oxide/Electrolyte Interface Formation in Li-ion batteries" Pinar Karayaylali(MIT), Yang Yu(MIT), Yu Katayama, Livia Giordano(MIT), Simon Lux(BMW Group), Filippo Maglia(BMW Group), Isaac Lund(BMW Group Technology Office USA), Yang Shao-Horn(MIT)
P249 "Understanding the interface reactivity and reaction mechanisms between Ni-rich LiNixMnyCo1-x-yO2 cathodes and PF6-based carbonate electrolyte in Li-ion batteries" Yang Yu(MIT), Pinar Karayaylali(MIT), Yu Katayama, Livia Giordano(MIT), Filippo Maglia(BMW Group), Isaac Lund(BMW Group), Simon Lux(BMW Group), Yang Shao-Horn( MIT)
P256 "Probing interfacial reaction pathways between cathodes and PF6-based carbonate electrolyte in Li-ion batteries through in-situ spectroscopic technique" Yu Katayama, Yang Yu(MIT), Pinar Karayaylali(MIT), Livia Giordano(MIT), Filippo Maglia(BMW Group), Isaac Lund(BMW Group), Simon Lux(BMW Group), Yang Shao-Horn(MIT)
Jun. 19
P380 "Li+ transport properties in poly(oxetane) electrolytes having nitrile groups" Ryansu Sai, Yu Katayama, Kazuhide Ueno(Yokohama Natl. Univ.), Hiromori Tsutsumi
Jun. 21
P736 "Understanding the Role of Solvent and Added Water on the Effectiveness of Lithium Iodide as a Redox Mediator in Lithium Oxygen Batteries" Graham M. Leverick(MIT), Michal Tułodziecki(MIT), Yu Katayama, Ryoichi Tatara(MIT), Fanny Bardé(Toyota Motor Europe), Yang Shao-Horn(MIT)

We also enjoyed sightseeing in Kyoto. The picture was taken at Fushimi-Inari shrine.
Thanks to heavy rain, we were the only visitor at that time.


In addition, we enjoyed a dinner with current and previous member of MIT Electrochemical Energy Lab, Professor Ogumi of Kyoto University, and Professor Hubert Gasteiger of Technical University of Munich.

We had softball games over chemistry department labs.
Although it was a bit of disappointment for not qualifying to the next round, we tried hard and had the most exciting game of the day!
Great game, everyone!

Ph.D. students Naoki Terada gave a poster presentation at this year's annual meeting of the Society of Rubber Science and Technology, Japan, which celebrated 90 years of the foundation.

Location: Saitama Hall
Attendee: Naoki Terada

<Poster>
May 30
P-7「溶融電界紡糸法により調整された不溶性硫黄の構造と特性評価」
Naoki Terada (Sanshin Chemical Industry Co., SCI), Katsusige Takashita (SCI), Kazuhide Ueno (Yokohama Natl. Univ.), Hiromori Tsutsumi

Prof. Yu Katayama gave invited lecture, which summarizes the reaction mechanisms of the electrochemical CO2 reduction reaction for future fuel production. The results were obtained through various experimental and theoretical approaches, including in situ infrared spectroscopy, ambient-pressure XPS, and DFT calculations.
We also shared results on the importance of electrolyte design in Li-air batteries development.

Location: Washington State Convention Center (Seattle)
Attendee: Yu Katayama

<Invited>
May 17
B07-0945 "Understanding Product Selectivity in Electrochemical Conversion of CO2: A Combined in Situ Experimental and Theoretical Approach" Yu Katayama, Yang Shao-Horn(MIT)
L04-2276 "Towards Comprehensive Control of Electrochemical Reactions through Electrolyte Design: A Lithium Oxygen Battery Case Study" Graham Leverick, Michal Tułodziecki(MIT), Yu Katayama, Ryoichi Tatara(MIT), Shuting Feng, Fanny Bardé(Toyota Motor Europe), Yang Shao-Horn(MIT)
<Oral>
May 17
A03-0578 "Understanding the Role of Solvent and Added Water on the Effectiveness of Lithium Iodide As a Redox Mediator in Lithium Oxygen Batteries" Graham Leverick(MIT), Michal Tułodziecki(MIT), Yu Katayama, Ryoichi Tatara(MIT), Shuting Feng(MIT), Fanny Bardé(Toyota Motor Europe), Yang Shao-Horn(MIT)

　

We held Welcome Party for New Members!
We enjoyed bowling competition and drinking party with new members!

Undergrads will start full-time research activities from now on.
Let's learn and grow together!

Six undergraduate students and one doctoral student joined our group this year.
We went to Tokiwa Park and held BBQ party under cherry blossom!

Congratulations on your graduation!
One master's students, Mr. Jun Toshimitsu graduated from our group this year.
We hope even greater success in your future career!
We are looking forward to seeing you at the lab alumni meeting.

　　

　　

Six undergrads presented summary of their research.
Presentation time: 7 minutes
Q & A: 2 minutes

<Oral>
C101「エッジ剥離黒鉛/硫黄複合体の調製とそのリチウム硫黄電池正極への応用」Nanami Uesugi
C102「電界紡糸法により作製した鋳型繊維を用いた極細ビスマスチューブの調製とそのマグネシウム二次電池用電極材料としての評価」Yukio Daikubara
C103「ハロゲンを有するスチレン誘導体と硫黄からなる共重合体の合成とそのリチウム二次電池用正極材料への応用」Keitaro Hashimoto
C122「電界紡糸法により作製した後重合可能な官能基を有するポリオキセタン不織布の構造とその光架橋反応性」Tasuku Hitaka
C123「側鎖にトシル基を有するポリオキセタン誘導体の高分子合成反応への応用」Koki Yamada
C124「水酸基を有するアルケニル化合物と硫黄からなる共重合体の合成とその銅防食剤としての評価」Yoshiki Yamamoto


After the presentation, graduation party was held at university co-op.
　
During the party, undergraduate student Nanami Uesugi received the Best Presentation Prize, and master's student Ryansu Sai was awarded CSJ Chugoku-Shikoku Branch Chief Prize.
Congratulations, both of you!

　

Master’s thesis session in faculty of engineering was held.
Ryansu Sai and Jun Toshimitsu shared their results focused on future energy storage devices.
Presentation time: 10 minutes
Q & A: 4 minutes

<Oral>
001「側鎖にニトリル基を有するポリオキセタン電解質におけるリチウムイオン輸送特性に関する研究」Ryansu Sai
002「階層的な細孔を有する多孔性炭素繊維/硫黄複合材料の調製及びその二次電池用正極への応用」Jun Toshimitsu

Prof. Yu Katayama has joined the group as an assistant professor from Jan. 1st.
We held a New Year's party that also served as a welcome party!
Welcome, Prof. Yu Katayama!