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 …

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 …

Machine learning demonstrates the impact of proton transfer and solvent dynamics on CO 2 capture in liquid ammonia

MFC Andrade, S Li, TA Pham, SA Akhade… - Chemical Science, 2024 - pubs.rsc.org
Direct air capture of CO2 using supported amines provides a promising means to achieve
the net-zero greenhouse gas emissions goal; however, many mechanistic details regarding …

Oxidation of Supported Amines for CO2 Direct Air Capture: Assessing Impact on Physical Properties and Mobility via NMR Relaxometry

E Hunter‐Sellars, JD Kerr, HV Eshelman… - Macromolecular …, 2024 - Wiley Online Library
Aminopolymer‐based adsorbents are commonly investigated for CO2 direct air capture
(DAC). In the presence of high temperature and oxygen, which can occur during adsorption …

[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 …

Self-Assembled Oligomers Facilitate Amino Acid-Driven CO2 Capture at the Air–Aqueous Interface

N Kumar, VS Bryantsev - The Journal of Physical Chemistry B, 2025 - ACS Publications
Direct air capture of CO2 using amino acid absorbents, such as glycine or sarcosine, is
constrained by the relatively slow mass transfer of CO2 through the air–aqueous interface …

Glycidyl Ether-Functionalized Poly(ethylenimine)-Impregnated Sorbents for CO2 Capture from Ultradilute Sources

S Shaikh, SA Didas, MA Sakwa-Novak… - ACS Applied Polymer …, 2024 - ACS Publications
Carbon dioxide adsorbents based on branched poly (ethylenimine)(PEI) are prevalent in
postcombustion CO2 capture as well as direct air capture (DAC) of CO2. In DAC, PEI-based …

Polymer Encapsulated Framework Materials for Enhanced Gas Storage and Separations

GEB Redwine, WA Braunecker, T Gennett - ACS Materials Au, 2024 - ACS Publications
Within the broader field of energy storage, polymer-encapsulated framework (PEF) materials
have witnessed remarkable growth in recent years, with transformative implications for …

Accelerated Testing of PEI-Silica Sorbent Pellets for Direct Air Capture

HV Thakkar, AJ Ruba, JA Matteson, MP Dugas… - ACS …, 2024 - ACS Publications
Amine-based sorbents have shown exceptional CO2 uptake for direct air capture (DAC).
However, amine degradation is a major issue for this class of materials, hindering their …

Understanding the Role of Hydroxyl Functionalization in Linear Poly (ethylenimine) for Oxidation-Resistant Direct Air Capture of CO2

AJ Varni, LS Thigpen, MFC Andrade, MAT Marple… - 2024 - chemrxiv.org
Aminopolymer-based adsorbents are a prominent class of materials being used for direct air
capture of CO2 at the industrial scale. However, improving their working lifetime, specifically …