Insights into the Oxidative Degradation Mechanism of Solid Amine Sorbents for CO2 Capture from Air: Roles of Atmospheric Water

JSA Carneiro, G Innocenti, HJ Moon… - Angewandte Chemie …, 2023 - Wiley Online Library
Direct air capture (DAC) processes for extraction of CO2 from ambient air are unique among
chemical processes in that they operate outdoors with minimal feed pretreatments. Here, the …

Degradation of amine-functionalized adsorbents in carbon capture and direct air capture applications: Mechanism and solutions

S Zhao, Y Zhang, L Li, J Feng, W Qiu, Y Ning… - Separation and …, 2024 - Elsevier
Amine-functionalized CO 2 adsorbents are very promising materials for carbon capture and
direct air carbon capture because of their high CO 2 uptake capacity and low regeneration …

Contributions of CO2, O2, and H2O to the Oxidative Stability of Solid Amine Direct Air Capture Sorbents at Intermediate Temperature

YA Guta, J Carneiro, S Li, G Innocenti… - … Applied Materials & …, 2023 - ACS Publications
Aminopolymer-based sorbents are preferred materials for extraction of CO2 from ambient air
[direct air capture (DAC) of CO2] owing to their high CO2 adsorption capacity and selectivity …

Fundamental Insight into Humid CO2 Uptake in Direct Air Capture Nanocomposites Using Fluorescence and Portable NMR Relaxometry

GA Russell-Parks, N Leick, MAT Marple… - The Journal of …, 2023 - ACS Publications
Direct air capture (DAC) technology is being explored as a pathway for reducing
greenhouse gas emissions through the efficient removal of CO2 from the atmosphere …

Probing the Kinetic Origin of Varying Oxidative Stability of Ethyl‐vs. Propyl‐spaced Amines for Direct Air Capture

S Li, MR Cerón, HV Eshelman, AJ Varni… - …, 2023 - Wiley Online Library
Amine‐based adsorbents are promising for direct air capture of CO2, yet oxidative
degradation remains a key unmitigated risk hindering wide‐scale deployment. Borrowing …

Spectroscopic investigation into the oxidation of polyethylenimine for CO2 capture: Mitigation strategies and mechanism

C Yan, A Sayari - Chemical Engineering Journal, 2024 - Elsevier
One of the most critical challenges facing large-scale application of amine-based CO 2
adsorbents is their long-term stability, particularly their oxidative degradation, which …

Competing Kinetic Consequences of CO2 on the Oxidative Degradation of Branched Poly(ethylenimine)

S Li, Y Guta, MF Calegari Andrade… - Journal of the …, 2024 - ACS Publications
Amine-functionalized porous solid materials are effective sorbents for direct air capture
(DAC) of CO2. However, they are prone to oxidative degradation in service, increasing the …

[HTML][HTML] Enhanced hydrogen bonding via epoxide-functionalization restricts mobility in poly (ethylenimine) for CO 2 capture

S Li, MFC Andrade, AJ Varni… - Chemical …, 2023 - pubs.rsc.org
Free energy sampling, deep potential molecular dynamics, and characterizations provide
insights into the impact of epoxide-functionalization on the hydrogen bonding and mobility of …

Amine Adsorbents Stability for Post‐Combustion CO2 Capture: Determination and Validation of Laboratory Degradation Rates in a Multi‐staged Fluidized Bed Pilot …

SHAM Leenders, G Pankratova, J Wijenberg… - …, 2023 - Wiley Online Library
Alternative to current liquid amine technologies for post‐combustion CO2 capture, new
technologies such as adsorbent‐based processes are developed, wherein material lifetime …

[HTML][HTML] Enhancing oxidation stability of amine-containing CO2 adsorbents using hydroxyethyl starch

C Kaur, A Sayari - Chemical Engineering Journal, 2024 - Elsevier
Amine-based adsorbents are widely used for CO 2 capture. However, one of the biggest
hurdles for their further development is their limited oxidation stability. Moreover, methods …