Study of Electrolyte reaction mechanism through visualizing the local electric field with developing a micro-electrolyte cell

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K13717
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Analytical chemistry
• Research Institution: University of Tsukuba
• Principal Investigator: FUJITA Jun-ichi 筑波大学, 数理物質系, 教授 (10361320)
• Co-Investigator(Renkei-kenkyūsha): TAKEGUCHI Masaki 物質・材料研究機構, 技術開発・共用部門電子顕微鏡ステーション, ステーション長 (30354327) ; MURAKAMI Katsuhisa 産業技術総合研究所, ナノエレクトロニクス部門, 研究員 (20403123)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 高加速電子線 / Rutherford散乱 / 偏向 / 局在場 / 可視化 / 触媒 / 電化局在 / 走査透過電子顕微鏡

Outline of Final Research Achievements

In this challenging exploratory research, we adopted a localized field detection method using a 200 keV scanning transmission electron microscope with a strong liquid permeability, developed the SiN membrane electrolytic cell, and we created the localized field detection technique by the offset type HARDF detection method. An offset of about 1.3 mm was given to the electron beam axis with respect to the center of the HARDF detector having an inner diameter of 3 mm. The projection lens system was adjusted to have the camera length of 2.23 m. With respect to electrons transmitted through the electrolytic cell, the transmitted electron beam gives 50% HARDF detection intensity at a deflection angle of 0.3 mRad and it is possible to image scattered electron information scattered in the localized field formed in the liquid.

Free Research Field

ナノ物性計測