Nanoscale Electrochemistry
Nanoscale electrochemistry grants us a distinctive capability to understand the interfacial charge transfer processes with exceptional precision, creating enormous opportunities in catalysis, sensing, and energy storage. We develop nanometer-sized electrochemical probes and high–resolution electrochemical microscopy to characterize the chemical transformation at solid/electrolyte interfaces with the aid of modeling and simulations.
Illuminating Electrochemistry at van der Waals Interfaces
Van der Waals (vdW) heterostructures constructed through assembly of atomically thin two-dimensional (2D) layers have created rich opportunities for tuning the physical behaviors of materials as well as their interfacial chemical reactivities. We engineer new types of 2D vdW constructs and investigate how they modulate the dynamics of light-driven chemical conversion. Scanning probe methods coupled with optical and electronic characterization are used as the essential tools.
The Organic Molecular Side of Energy Storage
Organic molecules and polymers have emerged as a promising and versatile class of electrode materials for next-generation energy storage solutions. We utilize spatially resolved electrochemical techniques to delve deep into the redox kinetics of these fascinating organic electrodes. Our goal is to uncover the intricate mechanisms of ion-coupled electron transfer and understand how these fundamental processes influence the charge and discharge behavior of the materials.
Mapping Electrocatalytic Landscapes
Through collaborations, we employ spatially resolved electrochemical techniques to map the electrocatalytic activity of transition-metal oxides, layered double hydroxides, transition-metal borides, and related materials at the micro- and nanoscale. Our goal is to reveal how local structures and defects govern reaction mechanisms and kinetics.