Event details at NUS Center for Advanced 2D Materials.

Xianwen's MRS awardee talk on "understanding electrochemical interfaces by soft materials design and operando functional imaging".

Abstract: Electrochemical interfaces have continued to play critical roles in modern technologies that promise to tackle some of the world’s most pressing sustainability challenges such as energy crisis and water scarcity. In this talk, I will discuss my research efforts on developing a deeper understanding of nanoscale electrochemical interfaces by molecular engineering of soft materials and nanoscopic operando functional imaging. I will focus on how to control technologically important adsorptive and catalytic processes at such interfaces for energy and environmental applications.

Conference Presentations

“Multimodal functional imaging of anisotropically-faceted semiconductor particles for photoelectrocatalyst design”
ACS National Meeting, April 2021.

“Label-free super-resolution reaction imaging of single photocatalyst particles for water decontamination”
ACS National Meeting, April 2021.

“Understanding energy storage performance of surfactant ionic liquids with self-assembled nanostructures”
ACS National Meeting, April 2021.

(Invited) “Molecular engineering and operando imaging for understanding nanoscale electrochemical materials”
MRS Spring/Fall Meeting, November 2020.

“Nanoscopic operando imaging-guided design of photoelectrocatalysts for energetically efficient water decontamination”
MRS Spring/Fall Meeting, November 2020.

“Self-assembled nanostructures in ionic liquids facilitate charge storage at electrified interfaces”
MRS Spring/Fall Meeting, November 2020.

(Invited) “Chemical Imaging of Single-Particle Photoelectrocatalysis for Energy Conversion”
ECS Annual Meeting, Seattle, WA, May 2018.

(Invited) “Electrospun Carbon Nanofibers for Electrochemical Biosensing and Energy Storage”
Fiber Society Fall Conference, Ithaca, NY, October 2016.

(Invited) “Electrospun Fibers for Electrochemical Analysis”
PITTCON Conference&Expo, Atlanta, GA, March 2016.

“Nanostructured surfactant ionic liquids with unusually high capacitances for high-temperature flexible supercapacitors”
AICHE Annual Meeting, Salt Lake City, UT, November 2015.

“Electrochemical Control over Reaction Kinetics Using Rationally Designed Redox-Switchable Catalysts”
AICHE Annual Meeting, Salt Lake City, UT, November 2015.

“Hybrid Electrochemical Interfaces for Control over Separation and Catalytic Processes”
Capacitive Deionization and Electrosorption (CDI&E) Conference, Saarbrucken, Germany, October 2015.

“Surfactant ionic liquids with unusually high capacitances for high-temperature flexible supercapacitors”
ACS National Meeting, Boston, MA, August 2015.

“Unusually high heterogeneous electron transfer activity of carbon nanotube-supported reduced graphene oxide”
ACS National Meeting, Boston, MA, August 2015.

“Redox Polymer/Carbon Fiber Hybrids for Electrochemically Responsive Heterogeneous Catalysis”
ACS National Meeting, Boston, MA, August 2015.

“Redox Polymer/Carbon Hybrid Structures with Controlled Electrochemical Properties”
MIT PPST Polymer Day, Cambridge, MA, March 2015.

“Redox Polymer-Based Porous Materials for Electrochemically Responsive Organics/Water Separation and Capacitive Deionization”
MIT Water Night, Cambridge, MA, March 2015.

“Reduced Graphene Oxide/Carbon Nanotube Hybrids with Tunable Electronic Structure for Sensing Applications”
MRS Fall Meeting, Boston, MA, December 2014.

“Microwave-Assisted Oxidation of Electrospun Turbostratic Carbon Nanofibers for Tailoring Energy Storage Capabilities”
MITEI Annual Research Conference, Cambridge, MA, November 2014.

“Electrochemically Responsive Heterogeneous Catalysis for Controlling Reaction Kinetics”
AICHE Annual Meeting, Atlanta, GA, November 2014.

(Invited) “Polymer-Derived Electrospun Turbostratic Carbon Nanofibers with Controlled Electrochemical Activities for Sensing and Energy Applications”
ACS National Meeting, San Francisco, CA, Auguest 2014.

“Redox Polymer/Carbon Hybrids with Controlled Electrochemical Properties for Pseudo-Capacitive Deionization”
MIT Water Night, Cambridge, MA, March 2014.

“Microwave-Assisted Oxidation of Turbostratic Carbon Nanofibers for Tailoring Energy Storage Capabilities”
MRS Fall Meeting, Boston, MA, December 2013.

“Ultrawide-Range Electrochemical Biosensing Using Electrospun Carbon Nanofibers with High Density of States”
AICHE Annual Meeting, San Fransico, CA, November 2013.

“Metallocene/Carbon Hybrids Prepared by A Solution Process for Supercapacitor Applications”
MIT PPST Polymer Day, Cambridge, MA, March 2013.

“Redox Polymer/Carbon Nanotube Hybrids with Tunable Nanostructures and Electrocapacitive Performance”
MRS Fall Meeting, Boston, MA, December 2012.

(Invited) “Electrospun Carbon Nanofiber Webs with Controlled Density of States for Sensor Applications”
Fiber Society Fall Conference, Boston, MA, November 2012.

“The Electrocapacitive Properties of Organometallic Polymer/Multiwalled Carbon Nanotube Hybrids”
AICHE Annual Meeting, Pittsburgh, PA, November 2012.

“Electrochemical Activity and Biosensitivity of Free-Standing Electrospun Carbon Nanofiber Webs”
IUPAC World Polymer Congress, Blacksburg, VA, June 2012.

“Free-Standing Electrospun Carbon Nanofiber Webs for Electrochemical Sensing Applications”
MIT PPST Polymer Day, Cambridge, MA, March 2012.

(Invited) “Redox-Responsive Polymeric Gels for Electrochemically Mediated Organics-Water Separation”
MIT DMA Annual Meeting, Cambridge, MA, May 2011.