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VersaScan微区扫描电化学工作站是一个建立在电化学扫描探针的设计基础上的,进行*高测量分辨率及空间分辨率的非接触式微区形貌及电化学微区测试系统。它是提供给电化学及材料测试以极高空间分辨率的一个测试平台。每个VersaSCAN都具有高分辨率,长工作距离的闭环定位系统并安装于抗震光学平台上。不同的辅助选件都安装于定位系统上,辅助选件包括,如电位计,压电振动单元,或者激光传感器,为不同扫描探针试验,定位系统提供不同的功能。VersaSTAT恒电位仪和Signal Recovery 7230锁相放大器和定位系统整合在一起,由以太网来控制,保证小信号的精确测量。
它是一个模块化配置的系统,可以实现如下现今所有微区扫描探针电化学技术以及激光非接触式微区形貌测试:
-AC-SECM 无氧化还原介质扫描电化学显微镜
-Stylus-Probe 柔性探针技术-等距离扫描电化学显微镜
以上每项技术使用不同的测量探针,且安装位置与样品非常接近,但是不接触到样品。随着探针测试的进行,改变探针的空间位置。然后将所记录的数据对探针位置作图,针对不同技术,该图可以呈现微区电化学电流,阻抗,相对功函或者是表面形貌图。
VersaSCAN SECM 整合了定位系统、两台VersaSTAT恒电位仪和锥形抛光的*微电极探针为一体。SECM多样化的技术提供了高空间分辨率,可应用于反应动力学,生物传感器,催化剂和腐蚀机理等研究。
VersaSCAN SVET 整合了定位系统及锁相放大器技术(Signal Recovery Lock-in Amplifier), 压电振动模块, 电位计和单丝探针。 SVET技术测量溶液中的电压降。电解液中的电压降是由样品表面的局部电流所导致的。 SVET提供高分辨率可应用于不均匀腐蚀,点蚀,焊接和电耦合等。此外,SVET还有生物方面的应用。
VersaSCAN LEIS 整合了 定位系统和VersaSTAT 3F 及差分电压选项, 静电计,双探头探针。 LEIS技术是通过测量施加于样品的交流电压和由探针所测量的溶液中交流电流的比值,来计算局部阻抗,LEIS加入高的空间分辨率,可应用于有机涂层,裸露的金属腐蚀,和所有和增加的交流技术相关的应用。
VersaSCAN SKP整合定位系统及锁相放大器技术(Signal Recovery Lock-in Amplifier), 压电振动模块, 电位计和钨丝探针。SKP 技术测量探针和样品表面位置的相对功函差。这是一个非破坏的技术,可运行于环境气氛,潮湿气氛和无电解液情况下。相对功函已经被证实与腐蚀电位 (Ecorr)相关。SKP 提供的高空间分辨率可应用于材料,半导体,金属腐蚀,甚至这些材料上的涂层。
VersaSCAN SDC 整合电位系统和一台VersaSTAT, 一个机械加工的PTFE 滴液系统头, 以及一个蠕动泵。SDC 技术对电解液微滴进行电化学测量, 固定电极/电解液界面的面积。SDC提供高空间分辨率可应用于动力学,腐蚀,流体研究和任何研究样品表面微小面积而无需破坏样品的应用或者控制面积在不同电解液中的暴露时间的应用。
VersaSCAN OSP整合定位系统和高精度,高速度激光位移传感器。 OSP 技术使用漫反射机理用于样品的表面形貌。OSP可作为非常灵敏水平的机制用于表面形貌测量,,或绘制地形图与其它扫描探针技术一起应用于样品表面定距离扫描测试。
-AC-SECM 无氧化还原介质扫描电化学显微镜
-Stylus-Probe 柔性探针技术-等距离扫描电化学显微镜
部分论文
1) Title: Electrodeposited silica film interlayer for active corrosion protection
Author: Yan-Hua Liu and Ji-Ming Hu etal., Zhejiang University
Corrosion Science 120 (2017) 61–74
2) Title: Synthesis and characterization of composite nanoparticles of mesoporous silica loaded with
inhibitor for corrosion protection of Cu-Zn alloy
Author: Xin Ma and, Xiangbo Li, Luoyang Ship Material Research Institute (LSMRI)
Corrosion Science 120 (2017) 139–147
3) Title: Passivation and potential fluctuation of Mg alloy AZ31B in alkaline environments
Author: Shengxi Li and Hong Bo Cong etal. The University of Akron, USA
Corrosion Science 112 (2016) 596–610
4) Title: Corrosion protection mechanisms of carbon nanotube and zinc-rich epoxy primers on
carbon steel
in simulated concrete pore solutions inthe presence of chloride ions
Author: Y. Cubides, H. Castaned, Texas A&M University, USA
Corrosion Science 109 (2016) 145-161
5) Title: Pitting mechanism in a stainless steel-reinforced Fe-based amorphous coating
Author: Peng Xu, Cheng Zhang, Huazhong University of Science and Technology
Electrochimica Acta 206 (2016) 61–69
6) Title: Low-Temperature-Processed 9% Colloidal Quantum Dot Photovoltaic Devices through Interfacial
Management of p–n Heterojunction
Author: Randi Azmi and Sung Yeon Jang etal. Kookim University, Korea
Advanced Energy Material 6(2016)1502146
7) Title: Screening of Novel Anti-Corrosion Coatings By Scanning Electrochemical Microscopy (SECM)
Author: C. Lee and R. Calhoun etal. United States Naval Academy, USA
ECS Transactions, 66 (30) 65-71 (2015)
8) Title: Electrochemically generated sol-gel films as the inhibitor containers of super hydrophobic
surface for active corrosion protection of metals
Author: Xue Fang Zhang and Ji min Hu etal. Zhejiang University
Journal of Materials and Chemistry A, 4(2016) 649-656
9) Title: Application of Localized Electrochemical Impedance Spectroscopy to Lithium-Ion Cathodes
and in situ Monitoring of the Charging Process
Author: Nina Harms and Schrçder, University of Braunschweig, Germany
Energy Technol. 2016, 4, 1- 7
10)Title: An ionic liquid–graphene oxide hybrid nanomaterial: synthesis and anticorrosive applications
Author: Chengbao Liu, Shihui Qiu, Peng Du, Haichao Zhao and Liping Wang
Nanoscale, 2016, 10, 8115–812
11) Title: Synergistic Effect of Polypyrrole-Intercalated Graphene for Enhanced Corrosion Protection of Aqueous Coating in 3.5% NaCl Solution
Author: Shihui Qiu, and Liping Wang etal. Ningbo Institute of Materials
ACS Appl. Mater. Interfaces 2017, 9, 34294−34304,
12) Inhibitor or promoter: Insights on the corrosion evolution in a graphene protected surface
Authors: Jihyung Lee, Diana Berman,
Carbon 126 (2018) 225-231, University of North Texas, USA
13) Title: High-throughput combinatorial chemical bath deposition: The case of doping Cu (In, Ga) Se film with antimony
Authors: Zongkai Yan, Xiaokun Zhang, and Xiang Yong etc.
Applied Surface Science 427 (2018) 1235–1241, University of Electronic Science and Technology of China
14) Title: Mapping the antioxidant activity of apple peels with soft probe scanning electrochemical microscopy
Authors: Tzu-En Lin and Hubert H. Girault etal. EPFL, Switzerland
Journal of Electroanalytical Chemistry 786 (2017) 120–128
15) Title: Anticorrosive behavior of a zinc-rich epoxy coating containing sulfonated polyaniline in 3.5% NaCl solution
Authors: Feng Yang, and Haichao Zhao, Ningbo Institute of Material
SC Adv., 2018, 8, 13237–13247
16) Title: Novel nitrogen doped carbon dots for corrosion inhibition of carbon steel in 1 M HCl solution
Authors: Mingjun Cui, Liping Wang and Qunji Xue, Ningbo Institute of Material
Applied Surface Science 443 (2018) 145–156
17) Title: Monitoring Tyrosinase Expression in Non-metastatic and Metastatic Melanoma Tissues by Scanning Electrochemical Microscopy
Authors: Tzu-En Lin, Alexandra Bondarenko, and Hubert H. Girault, EPFL, Switzerland
Angew. Chem. Int. Ed. 2016, 55, 3813 –3816
18) Title: Combined scanning electrochemical and fluorescence microscopies using a tetrazine as
a single redox and luminescent (electrofluorochromic) probe
Authors: L. Guerret-Legras, J. F. Audibert, G. V. Dubacheva and F. Miomandre,
Chem. Sci., 2018, 9, 5897-5905
19) Title: Rapid inkjet printing of high catalytic activity Co3O4/N-rGO layers for oxygen reduction reaction
Authors: Baohong Liu and Hubert H. Girault Andreas Lesch, EPFL and Fudan University
Applied Catalysis A, General 563 (2018) 9–17
20) Title: Determining Li+Coupled Redox Targeting Reaction Kinetics of Battery Materials with Scanning Electrochemical Microscopy
Authors: Ruiting Yan, Jalal Ghilane, Kia Chai Phuah, Thuan Nguyen Pham Truong, Stefan AHyacinthe Randriamahazaka and Qing Wang, National University of Singapore, Singapore
J. Phys. Chem. Lett. 2018, 9, 491−496
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