News

Researchers in the Department of Chemical Engineering have developed a new 3D-printed electrode design for redox flow batteries, a promising technology for storing energy generated by wind and solar power. Their work shows how carefully designed internal structures can help battery liquids move more effectively through the system while reducing the energy needed to pump the liquid.

Led by Professor Maxime van der Heijden, the research team created porous electrodes using 3D printing. The goal was to improve what engineers call mass transport, the movement of molecules in the battery liquid to the places where energy-storing reactions occur.

Redox flow batteries work differently from the lithium-ion batteries found in phones and electric vehicles. Instead of storing energy in solid materials, they store energy in liquid electrolytes held in external tanks. Because the amount of stored energy can be increased by using larger tanks, these batteries are attractive for large-scale renewable energy storage and grid applications.

Electrodes are a critical part of the battery because they provide the surface where chemical reactions take place. Making electrodes porous increases the available surface area and creates more locations where these reactions can occur.

Three chemical engineering graduate students won in the Academy of Research Commercialization (ARC) inaugural pitch competition.

ARC is a new program launched jointly between the Faculty of Engineering and the Conrad School of Business in collaboration with Velocity and WatCo (Waterloo Commercialization Office).

ARC provides programming such as fund preparation, and workshops for PhD students aiming to transform deep-tech research into for-profit ventures. 

Three entrepreneurially minded chemical engineering graduate students were winners of the competition.

Drew Davidson’s start-up ArcticEdge Technologies Inc. was one of the winners. Davidson, who is co-supervised by Professors Milad Kamkar and Valerie Ward, was inspired by his mother, Kelley Willemze who was a firefighter in Cambridge for over 30 years.

A research group led by Professor Michael Tam has developed a new water-based pesticide delivery formulation that dramatically improves how pesticides stick to plant leaves even in wind and rain.

Early field trials conducted with an industrial partner in Singapore demonstrated the potential of the technology. Cabbage plots were seeded with insect pests and the water-based formulation outperformed conventional pesticide systems, delivering better pest control using less active ingredients.

Current pesticide delivery systems rely on chemicals and solvents to help pesticide droplets stay on plant leaves and spread, which can be harmful to the environment.

 Standard practice is crops are protected by pesticides via liquid sprays using nozzles, mist sprays or from airplanes as a result, pesticides do not always reach their intended target, bouncing off plant leaves, drifting into the air or washing into soil and waterways leading to economic loss for farmers and environmental contamination.

Professor Boxin Zhao has been elected as a Fellow by the Canadian Academy of Engineering (CAE). CAE Fellows are nominated and elected by their peers in recognition of their outstanding achievements and lifelong contributions to the field of engineering.

“I’m honored to be elected as a CAE Fellow because this recognition goes beyond academia to engineering practice. I’m grateful that my work is acknowledged by engineers working in industry and across society,” says Zhao.

Zhao’s research centers on creating advanced functional materials aimed at addressing pressing industrial and environmental challenges, with a particular focus on understanding and engineering surface adhesion and interfacial interactions.

His research group has utilized polymer nanotechnology to create smart materials that interact with light, heat, and humidity, enabling novel applications in advanced manufacturing, including soft robotics and flexible electrical devices.

Each year, the Capstone Design Symposium stands as a defining milestone for our graduating students, marking the moment when years of study, experimentation, and hands‑on learning culminate in original engineering solutions.

This year’s graduating class identified meaningful problems, developed innovative approaches, and created their projects under the guidance of instructors, mentors, and industry partners.

Students tackled challenges as diverse as designing environmentally friendly glitter for cosmetics that avoids the microplastics found in most commercial products to developing early fault detection systems for lithium‑ion batteries to improve safety and reliability.

This year there were eight winning teams. Group 1 won the Bhattacharyya Capstone Design Award, valued at up to $3,000. This award is made possible through the generosity of Dr. Dilip and Mrs. Manjusha Bhattacharyya.

The Department of Chemical Engineering continues to advance its role as leader in sustainability, pioneering innovative solutions to reduce its carbon footprint.

Demonstrating a steadfast commitment to sustainablility teaching and practice, the Department of Chemical Engineering achieves Green Lab Gold Certification of its undergraduate teaching labs in the Douglas Wright Engineering Building (DWE).

The labs earned Green Lab Gold Certification for the second year in a row, with a higher score than last year!

It’s clear that sustainability is more than a buzzword for the department; the certification demonstrates the department’s focus on sustainability as an integral part of how experiential learning is designed and delivered.

“I am thrilled to see the work from Chemical Engineering to integrate sustainability into labs. Labs are areas of high resource intensity and environmental impact, and the team has identified meaningful activities for operational improvement,” says Mat Thijssen, Director of Sustainability at the University of Waterloo.

Professors Luis Ricardez-Sandoval and Pascal Poupart received $480K from the Bank of Montreal (BMO) and MITACS to design reinforcement learning tools for rare earth element (REE) recycling. The four-year interdisciplinary project between the Department of Chemical Engineering and Cheriton School of Computer Science will use reinforcement learning (RL) to design more efficient, sustainable recycling systems for REEs.

RREs are essential to global economies and used in a wide range of high-tech applications. They are used in the electronics, clean energy, aerospace, automotive, and defence industries to create products like cell phones, computers, batteries, MRI machines, jet craft, lasers, LEDs and more.

Canada is invested in being a global leader in critical‑mineral recycling and leveraging its resources to strengthen national security and promote economic growth. As demand for batteries, semiconductors, and clean‑energy technologies accelerates, Canada is looking beyond traditional mining.

“Eventually we’re going to run out of those mining resources, and we will need to recycle rare earth elements using advanced systems that can reduce waste, capital expenses and energy consumption,” says Ricardez-Sandoval, Director of the Chemical Process Optimization, Multiscale Modelling and Process Systems Group

A chemical engineering research group led by Professor Tizazu Mekonnen has developed an eco-friendly super absorbent hydrogel that could dramatically reduce the environmental impact of personal hygiene products like diapers, menstrual pads and tampons.

Unlike current products, which take centuries to break down, this new material degrades harmlessly in soil within three months.

In North America, billions of disposable diapers end up in landfills annually, according to the U.S. Environmental Protection Agency (EPA) taking up to 450 years to decompose.

Around 1.8 billion women menstruate monthly, and most single-use menstrual pads and tampons also end up in landfills. These products are about 90 per cent plastic and can take up to 500 years to break down, according to the United Nations Environment Programme.

A team of graduate students from the Department of Chemical Engineering earned an impressive second place in the WEF Technical Exhibition and Conference (WEFTEC).

The student team, supervised by Professor Sarah Meunier, first won the Water Environment Association of Ontario (WEAO) competition. The contest, a municipality that provides a current and relevant problem.  After that the team, sponsored by WEAO moved on to a second-place win at WEFTEC.

WEFTEC is the largest water quality exhibition in North America, and they hold an annual international student competition. The University of Waterloo team, which included Joseph Wortman, Rosa Maria Castillo, Maryory Ocana and Jinxuan Zhang competed against students from universities from across North America in the new Circular Water Economy category.

The teams were tasked with optimizing a wastewater treatment plan in Barrie. One of the biggest real-world hurdles is that Barrie expects its population to double by 2051, but the treatment plant itself has no room to grow.

Chemical engineering professors are taking on the problem of plastic waste in the environment by leveraging synthetic biology to turn plastic waste into valuable resources.

“We’re stepping out of our silos to advance sustainability,” says Professor Marc Aucoin. “The question is: can we use biology—or can we tune biology—to aid us in tackling plastic pollution?”

The answer may well be yes. The research group recently co-authored an overview of strategies to leverage synthetic biology, microbial engineering and engineering design to degrade and upcycle plastic waste.

Professor Christian Euler, Waterloo’s lead for the Center for Innovative Recycling and Circular Economy (CIRCLE) in a recent study is investigating whether feedstocks derived from plastic waste could provide the energy to drive carbon dioxide (CO₂) conversion.