MRS Meetings and Events


EL07.09.35 2023 MRS Fall Meeting

The Turbine Blades-Embedded Electrolyzer for Boosting CO2RR Performances

When and Where

Nov 29, 2023
8:00pm - 10:00pm

Hynes, Level 1, Hall A



You Syun Lyu2,Ta-Chung Liu1,Jing Ruei Lin2,Yung Chi Chang2

National Yang Ming Chiao Tung University1,Industrial Technology Research Institute2


You Syun Lyu2,Ta-Chung Liu1,Jing Ruei Lin2,Yung Chi Chang2

National Yang Ming Chiao Tung University1,Industrial Technology Research Institute2
Aqueous CO<sub>2</sub> electrolysis is a promising technology for closing the carbon cycle and de-fossilizing industrial processes. In addition to vigorously developing advanced materials for electrocatalysts and ion-exchange membranes, challenges such as media flow management, module stability, and force distribution are highly associated with improving the process performance and developing a stackable cell concept to meet industrially relevant levels. The design of the “zero-gap” membrane electrolyzer assembly achieved a prevailing position in laboratory and primary industrialization. However, the utilization of CO<sub>2</sub> is less than 50% despite using a cationic ion-exchange membrane or bipolar membrane to reduce the CO<sub>2</sub> crossover between anode and cathode, making it economically less attractive. This could be attributed to the gas path architectures in the gas chamber, which touches the gas diffusion electrode (GDE) from both sides of the electrode. Herein, we reported a promising modified electrolyzer architecture concept with hierarchically continuous flow channels and GDEs. The meticulous turbine blades were introduced in the cylindrical-shaped gas path architecture to increase the CO<sub>2</sub> media vortex for compulsive reaction with electrocatalysts, thereby enhancing CO<sub>2</sub> utilization, reduction of applied cell voltage, and selectivity. The structure was built by powder bed fusion-based 3D printing and embedded with electrochemically restructured zinc oxide nanoparticles as cathode electrocatalysts. The effect of these modifications on the cell voltage, selectivity, and overall conversion was investigated at 100 mA/cm<sup>2</sup> with varying CO<sub>2</sub> feed gas flow, concentration, and humidity. This as-fabricated electrolyzer was designed to be modular and provide the cell with mechanical integrity and allowed an ionic and electric contact over the entire active cell area, which is required for both stacking and upscaling of the cell. This concept-proof configuration promises ~70% CO<sub>2</sub> utilization and displayed 95% CO<sub>2</sub> to CO conversion at 3V with 180 mA/cm<sup>2</sup>, showing efficient and scalable CO<sub>2</sub> electrolysis without a notable increase in operation cost, and has high potential for practical application.


3D printing | carbon dioxide

Symposium Organizers

Gabriela Borin Barin, Empa
Shengxi Huang, Rice University
Yuxuan Cosmi Lin, TSMC Technology Inc
Lain-Jong Li, The University of Hong Kong

Symposium Support

Montana Instruments

Oxford Instruments WITec
Raith America, Inc.

Session Chairs

Gabriela Borin Barin
Yuxuan Cosmi Lin

In this Session

Large-Area, Pulsed Laser Deposition of MoS2/a-BN Heterostructures for Back-Gate Field Effect Transistors Applications

A Study of Transport and Optical Properties of Liquid Nitrogen-Assisted Deposition of Titanium Oxynitride Thin Films

High-Performance Electromechanical Power Generation of Lithography-Free Large-Scale MoS2 Monolayer Film Harvesters

An Investigation of Lithium and Cobalt Intercalation Method in 2D Transition Metal Dichalcogenides

Effect of Hot-Wire Oxidization and Sulfur Annealing on Layered p-MoS2 for TFT Application

Photoelectrochemical Polymerization (PEP) of EDOT for Formation of Pattered PEDOT at Specific Arbitrary Regions on Hematite (α-Fe2O3)

Spatially Resolved and In Situ Electrochemical Imaging on Two-Dimensional Materials using Scanning ElectroChemical Cell Microscopy (SECCM)

Nanowire-Based Sensor Platform for Breath Analysis

Sensitive Microwave Spectroscopy of Van der Waals Materials with Coplanar Waveguides

Ultratrace PFAS Detection using Amplifying Fluorescent Polymers

View More »

Publishing Alliance

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