Electrochemistry at Nano-interfaces: Faraday Discussion
Тезисы до: 16.04.2018
Даты: 26.06.18 — 28.06.18
Е-мейл Оргкомитета: http://www.rsc.org/events/detail/26816/electrochemistry-at-nano-interfaces-faraday-discussion
Организаторы: Royal Society of Chemistry
The active nano-interface is important in electrochemistry because it constitutes the place where electron/ion transfer reactions occur coupled to extremely fast mass transport and under exquisite control of local conditions. Electrochemistry at nano-interfaces poses major fundamental and conceptual challenges in physical electrochemistry, while also being central to the emergence of real applications. Nano-interfaces are a major theme in energy transforming technologies (e.g. batteries, fuel cells, solar cells), electrochemical biosensors, diagnostic platforms, in bio-electrochemistry, and in nano-electrochemical mapping/imaging techniques. All of these areas face common challenges linked to the nano-interface concept. This Faraday Discussions meeting addresses these fundamental challenges, and also encourages cross-disciplinary interactions.
At this Faraday Discussion, we will discuss the theme of understanding the electrochemistry at nano-interfaces, including electron- and ion-transfer. We will explore the modern methods used to design new nano-interfaces, probe the charge/energy transferring processes at the nano-interface, and promote applications including those involving single-molecule studies, single-nanoparticle electrochemistry and single-cell analysis.
The rising issue lies in understanding the importance of nanostructures in nanopores and nano-electrodes; this is linked to the control of the nature of electrochemical performance and potentially revolutionizes both the understanding of electrochemical processes and the construction of new sophisticated functionalized nano-interfaces. In particular, we will aim to shed light on the development of new ultrafast current measurements as well as spatially resolved imaging tools, which have great relevance and interest for transient detection/imaging and for the measurement of charge transfer at nanostructured interfaces in many applications.
Processes at Nanopores and Bio-Nanointerfaces
Nanopore sensors provide a highly innovative technique for a rapid and label-free analysis of transport processes including molecule translocations, charge transfer and electron transfer. However, the key challenges remain in acquiring small (fA-pA) and transient (sub microsecond) signals, resolving fine molecular features and motions inside nanopores, improving the nanopore spatial resolution and achieving application in real sample detection.
This session will focus on new techniques for characterizing processes at functional nanopores, made possible by the integration of novel optical techniques and the development of ultrafast current measurements. It will cover both high selectivity and high sensitivity approaches relevant to multi-component analysis in real samples, the precise manipulation of single molecules, the encoding of the chemical composition of an individual molecule, and the theoretical modelling of how the analyte interacts with the atoms and molecules of the nanopores.
Processes at Nanoelectrodes
This session focusses on understanding the processes at nanoelectrodes and corresponding areas of application. One of the major challenges to address in nanoelectrochemistry has been to avoid the irreproducible production of nanoelectrodes of random size, shape and uncontrolled functionality. These hinder the correlation between the apparent electrode radius estimated by electrochemical characterization and the actual nanoscopic area. It is also important to create more selective nanoelectrodes by specific design and modification of the nanoelectrode surface. Moreover, the difficulties in characterization and analysis of the behavior of ions and electrons at the nanoelectrodes need to be addressed in order to understand the charge/energy transfer processes at the nano-interface.
Therefore, in this session, attention will be focused on: (i) fabrication and characterization methods for producing structurally well-defined nanoelectrodes incorporating related surface modification, (ii) experimental and theoretical characterization of electrochemical processes occurring at nano-interfaces, including electron- and ion-transfer, (iii) the applications of nanoelectrodes to single-molecule studies, single-nanoparticle electrochemistry, single-cell analysis and the scanning probe techniques.
Energy Conversion at Nanointerfaces
The improvements in the fabrication of electrochemical nano-interfaces facilitate the development of alternative energy conversion systems for clean energy production, storage and transformation.
This session aims to shed more light on: the achievements of predictive tools in the design of nano-interfaces, understanding the double-layer structures that can transform photon/chemical energy into electricity, and discussing the materials, architectures and fabrication methods required to advance this field and to advance applications.
Dynamics of Nanointerfaces
The goal of this session is to highlight progresses in the transient detection and measurement of charge (electron and/or ion) transfer at nano-interfaces, either through the use of versatile tools to measure charge transfer reactions or by establishing suitable techniques for detecting and identifying charged intermediates at nano-interfaces. The quantitative assessment of the kinetic and dynamic mechanisms for charge transfer at nano-interfaces pushes the application of electrochemistry into the limits of high-sensitivity bioanalysis, high-resolution topography and reactivity imaging.