バルク液中電気化学用ホルダー

Generation V: Introducing the world's first bulk liquid-electrochemistry TEM holder

技術仕様

1490 series
Total Electrodes 6
True Reference Electrode Yes-  drift rate less than 0.1 mV/min
True Counter Electrode Yes
Counter Electrode  Material User’s choice of material
Electrolytes Aqueous, Wide range of organics*
Spacer range 100nm to 2 um*
Heating Capability Yes
EELS/ EDS Compatible Yes
TEM Compatibility TFS/FEI, JEOL, Hitachi

* Contact us for Custom Configurations

特徴

注目の研究

バルク電気化学実験をその場で再現

第5世代バルク液中電気化学用ホルダーにより、透過型電子顕微鏡内で、初めて、バルクと同等なレベルの電気化学環境を完全に再現することができるようになりました 。さらに 、新規に開発されたハードウェアシステムにより、バルク同様のサイクルを有する完全な電気化学プロセスを、定量的に測定することが可能になりました。

モデル化合物であるCuSO4溶液のサイクリックボルタンメトリー(CV)測定を行い、活性電極からの銅のメッキと剥離を観察した結果を動画として紹介します。銅のメッキと剥離は作用電極で起こっており、実際のバルクの挙動を示しています。

当社の新しい液中用チップセルにより、世界で初めてTEMによるバルクレベルのデータを再現することが可 能 になりました。

Video  Right: その場液中セルによる銅メッキと CuSO4 溶液からの剥離。画像の黄色い点は、対応するCVカーブの位置を示しています。

ペンシルバニア大学のRui Filipe Serra Maia博士およびEric Stach博士と共同で取得した社内データです。

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Electrochemical deposition of a conducting polymer on a gold electrode

Video on the left shows the methodological and controlled deposition of polyaniline – a conducting polymer – from solution into a gold electrode. The deposition starts at the interface between the working electrode and electrolyte solution. The electrode surface is heavily modified as the polymer deposits. This observation helps understanding the rate determining processes of nucleation and growth, which has an important application in corrosion protection of materials.

Hummingbird Scientific internal data.

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主な出版物

Khim Karki, Rui Serra-Maia, Eric Stach, Daan Hein Alsem, Norman Salmon. “Realistic Bulk Electrochemistry in Liquid Cell Microscopy.” Microscopy & Microanalysis (2020) Abstract
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S.W. Chee, F.M. Ross, D. Duquette, and R. Hull. “Studies of Corrosion of Al Thin Films using Liquid-Cell Transmission Electron Microscopy,” MRS Proceedings 1525 (2013) Abstract
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Y.Z. Liu, X.M. Lin, Y.G. Sun, T. Rajh. “In-Situ Visualization of Self-Assembly of Charged Gold Nanoparticles.” J. Am. Chem. Soc. 135:10 (2013) pp. 3764–3767 Abstract
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T.J. Woehl , J. E. Evans, I. Arslan, W.D. Ristenpart , N.D. Browning “Direct in-situ determination of the mechanisms controlling nanoparticle nucleation and growth,” ACS Nano 6:10 (2012) pp. 8599–8610  Abstract
R.R. Unocic, L. Baggetto, K.A. Unocic, G.M. Veith, N.J. Dudney, and K.L. More. “Coupling EELS/EFTEM Imaging with Environmental Fluid Cell Microscopy.” Microscopy and Microanalysis 18 (Suppl 2), (2012) 1104-1105 Abstract
K.L. Jungjohann, J.E. Evans, I. Arslan, N.D. Browning. “Electron Energy Loss Spectroscopy for Aqueous in-Situ Scanning Transmission Electron Microscopy.” Microscopy & Microanaysis 17:S2 (2011) pp. 778–779. Abstract
E.R. White, M. Mecklenburg, B. Shevitski, S.B. Singer, and B.C. Regan, “Charged nanoparticle dynamics in water induced by scanning transmission electron microscopy,” Langmuir 28:8 (2012) pp. 3695–3698  Abstract
R.R. Unocic, L.A. Adamczyk, N.J. Dudney, D.H. Alsem, N.J. Salmon, and K.L. More. “In-Situ Electron Microscopy of Electrical Energy Storage Materials,” ECS Fall Meeting 2010 Abstract
C.M. Wang, W. Xu, J. Liu, D.W. Choi, B. Arey, L.V. Saraf, J.G. Zhang, Z.G. Yang, S. Thevuthasan, D.R. Baer, and N. Salmon. “In-situ transmission electron microscopy and spectroscopy studies of interfaces in Li ion batteries: Challenges and opportunities,” J. Mater. Res. 25:8 (2010) pp. 1541–1547 Abstract

 

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