Marta Hatzell

Great to host the National Academy of Engineering regional meeting @gatechengineers.bsky.social

Lots of great discussions on manufacturing for low cost and clean energy production.

A very nice team!

Comparing Intrinsic Catalytic Activity and Practical Performance of Ni- and Pt-Based Alkaline Anion Exchange Membrane Water Electrolyzer Cathodes The stringent cost and performance requirements of renewable hydrogen production systems dictate that electrolyzers benefit from the use of nonprecious catalysts only if they deliver the same level of...

Paper by McKone @upittpress.bsky.social and collaborators.
Comparing Intrinsic Catalytic Activity and Practical Performance of Ni- and Pt-Based Alkaline Anion Exchange Membrane Water Electrolyzer Cathodes | ACS Energy Letters pubs.acs.org/doi/10.1021/...

CO2 Capture via Electrochemical pH-Mediated Systems The rising atmospheric CO2 concentrations necessitate energy-efficient, modular, and low-cost approaches to CO2 capture. Conventional CO2 capture methods swing the CO2 absorption capacity by modulatin...

#OA Review article by Adnan Ozden
CO2 Capture via Electrochemical pH-Mediated Systems | ACS Energy Letters pubs.acs.org/doi/10.1021/...

Filament-Induced Failure in Lithium-Reservoir-Free Solid-State Batteries Lithium-reservoir-free solid-state batteries can fail due to electrical shorting as a result of fracture and lithium metal filament formation. Mechanical stress at the solid electrolyte surface can induce fractures, which promote lithium filament growth. This stress arises from both electrochemical sources, due to lithium electrodeposition, and mechanical sources, such as external stack pressure. Solid electrolyte surface roughness and the applied stack pressure together affect stress development. This study combines electrochemical experiments, 3D synchrotron imaging, and mesoscale modeling to explore how stack pressure influences failure mechanisms in lithium free solid-state batteries. At low stack pressure, irregular lithium plating and the resulting high local current density drive failure. At higher stack pressure, uniform lithium plating is favored; however, notch-like features in the surface of the solid electrolyte experience high tensile stress, leading to fractures that cause premature short-circuiting.

Editors' Choice: #OA article from @kelseyhatzell.bsky.social and collaborators
Filament-Induced Failure in Lithium-Reservoir-Free Solid-State Batteries | ACS Energy Letters pubs.acs.org/doi/10.1021/...

Will a new generation of water-splitting devices help green hydrogen replace fossil fuels? Green hydrogen production will must increase 300-fold to help forestall dangerous climate change

Nice discussion of electrolysis of water for hydrogen challenges + opportunities! www.science.org/content/arti...

NSF Implementation of Recent Executive Orders Information for the NSF community regarding executive orders.

Sharing because I haven't seen it yet: NSF updated communication on 2/15 www.nsf.gov/executive-or...

Mostly logistical stuff, but interesting to see that merit criteria staying put and panels are ongoing.

Comparing Advanced Bipolar Membranes for High-Current Electrodialysis and Membrane Electrolysis Advanced bipolar membranes (BPMs) with low water-dissociation overpotential (ηwd) may enable new electrochemical technologies for electrolysis, fuel cells, acid–base synthesis, brine remediation, lith...

Latest from @boettcherlab.bsky.social
Comparing Advanced Bipolar Membranes for High-Current Electrodialysis and Membrane Electrolysis | ACS Energy Letters pubs.acs.org/doi/10.1021/...

Preventing Salt Formation in Zero-Gap CO2 Electrolyzers by Quantifying Cation Accumulation The electrochemical CO2 reduction reaction (CO2RR) in a membrane electrode assembly (MEA) efficiently turns CO2 into a feedstock. However, unfavorable steady-state concentrations of ions in the catho...

Preventing Salt Formation in Zero-Gap CO2 Electrolyzers by Quantifying Cation Accumulation | ACS Energy Letters pubs.acs.org/doi/10.1021/...

Princeton Engineering - Three faculty members honored by the White House Three engineering faculty members — Kelsey Hatzell, Aleksandra Korolova and Olga Russakovsky — have been awarded the Presidential Early Career Award for

Congratulations to @kelseyhatzell.bsky.social, one of three Princeton Engineering faculty who have been awarded the Presidential Early Career Award for Scientists and Engineers. The award is the highest honor given by the U.S. government to early-career scientists!

bit.ly/40ELYcL

We are so happy to welcome Associate Professor @martahatzell.bsky.social, who has been appointed interim deputy director of the Georgia Tech Strategic Energy Institute! Marta has been a strong supporter of SEI for many years and we are over-the-moon happy!
Read more:
bit.ly/40kARUV
#energysky

Marta Hatzell observes as two Ph.D. students work with bottles, pipettes, and other equipment at a lab bench.

Yongsheng Chen and two students look at lettuce growing in a vertical garden in the lab

Shu Takayama and Lily Cheung take a selfie in front of cows during a trip to Chile

Georgia Tech engineers are planting the seeds of the farm of the future. See how @martahatzell.bsky.social and others are working to create circular systems for fertilizer, recover nutrients from wastewater, and imagine ways to feed a growing world amid a changing climate. b.gatech.edu/4fIHLJm

Electrothermal Carbon Capture and Utilization─A Review The rising carbon footprint has made it crucial to mitigate greenhouse gas emissions by adopting carbon capture and utilization processes using solid sorbents. However, traditional techniques face challenges for large-scale deployment because of high energy and oversized separation unit requirements. Electrothermal swing adsorption uses conductive sorbent materials or conductive heating elements (electrodes) coupled to sorbents to induce CO2 desorption through electrical currents. The electrothermal approach offers energy efficiency and modularity to enhance the economic feasibility and scalability of carbon capture processes. This review examines various materials, including sorbents, heterogeneous catalysts, electrodes, and laboratory-scale advancements through fixed bed reactors for CO2 capture and parallel wire or open foam systems for CO2 conversion. The review offers insights into material selection strategies, emphasizing considerations such as porosity, catalyst stability, and cost-effectiveness. Finally, the review highlights the importance of an integrated electrothermal CO2 capture and utilization strategy and future research areas to advance the development of this crucial technology.

#OA article
Electrothermal Carbon Capture and Utilization─A Review | ACS Energy Letters pubs.acs.org/doi/10.1021/...

Emerging Trends and Future Opportunities for Battery Recycling The global lithium-ion battery recycling capacity needs to increase by a factor of 50 in the next decade to meet the projected adoption of electric vehicles. During this expansion of recycling capacity, it is unclear which technologies are most appropriate to reduce costs and environmental impacts. Here, we describe the current and future recycling capacity situation and summarize methods for quantifying costs and environmental impacts of battery recycling methods with a focus on cathode active materials. Second use, electrification of pyrometallurgy and hydrometallurgy, direct recycling, and electrochemical recycling methods are discussed as leading-edge methods for overcoming state of the art battery recycling challenges. The paper ends with a discussion of future issues and considerations regarding solid-state batteries and co-optimization of battery design for recycling.

Final paper of the year! Check out our perspective on battery recycling 🔋♻️
pubs.acs.org/doi/full/10....

Their Fertilizer Poisons Farmland. Now, They Want Protection From Lawsuits. A company controlled by Goldman Sachs is helping to lead a lobbying effort by makers of fertilizer linked to “forever chemicals.”

A company controlled by Goldman Sachs has made millions of dollars from sewage sludge sold to use as fertilizer, which has been linked to “forever chemicals.” Now the company is part of a major lobbying effort to limit the ability of farmers to sue to clean up fields polluted by the fertilizer.

Zero-Gap Electrolyzers Accelerate Reconstruction of Cu2O-Derived Catalysts under CO2 Reduction To scale carbon dioxide reduction (CO2R), establishing a structure–property–performance relationship of the catalyst under the reaction conditions is a priority. Particularly in membrane electrode assembly (MEA) electrolyzers, knowledge about the valence state and coordination environment of the catalyst is of value yet limited. We developed an MEA electrolyzer that utilizes X-ray absorption spectroscopy to investigate the structural evolution of Cu2O-derived catalysts under CO2R and compare the same catalysts in a flow cell. Additionally, we study the influence of CO reduction and incorporating Ag on the reconstruction of the catalyst. We find that the strong reduction environment in the MEA and feeding CO leads to reconstruction of Cu2O particles, favoring higher coordination and lower oxidation states, which coincides with a shift in the reaction selectivity from C2+ to hydrogen. Conversely, incorporating small amounts of Ag in the catalyst restricts the reconstruction. These findings advocate for in situ studies in zero-gap electrolyzers.

Zero-Gap Electrolyzers Accelerate Reconstruction of Cu2O-Derived Catalysts under CO2 Reduction | ACS Energy Letters pubs.acs.org/doi/10.1021/...

Registration Registration is now open for the Annual 2025 SECS Symposium. Registration is a two step process.  This link will take you to PayPal where you can pay the registration fee. Pay the right amount (sta…

The 2025 Southeastern Catalysis Society Annual Symposium will be held in Clemson, SC on February 10-11, 2025! Please note that abstract submission is requested by December 13, 2024 (in <2 weeks).

secatsoc.wordpress.com/registration

But you get the wear cool scarves !!

Hi Vida, please add me 👍

Process and techno-economic analyses of ethylene production by electrochemical reduction of aqueous alkaline carbonates - Nature Chemical Engineering Future industrial processes for the electrolytic production of ethylene from aqueous carbonate feedstocks are not well understood. The authors develop unit operations and full process designs, evaluat...

New paper! Here we look at the process engineering associated with carbon capture and conversion www.nature.com/articles/s44...