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Title: Application of Solid-Supported Amines for Thermocatalytic Reactive CO2 Capture

Journal Article · · ACS Omega

Reactive CO2 capture (RCC) is a promising strategy for process intensification of carbon capture and conversion for production of low-carbon fuels and chemicals. As state-of-the-art sorbent materials in point source and direct air capture systems, solid-supported amines are a natural choice to pair with supported CO2 hydrogenation catalysts (e.g., metallic nanoparticles) for developing high-capacity sorbent-catalyst materials for use in RCC. In this Perspective, we summarize the relevant literature combining solid-supported amines with metallic nanoparticles for thermocatalytic RCC and detail two of our own case studies using RCC to synthesize methane and methanol. Our observations suggest that the temperature mismatch between CO2 desorption and reaction, along with potential catalyst site poisoning by grafted aminosilanes, is a significant obstacle to realizing the potential of amine-based RCC materials in the decarbonization of chemical production. This stands in contrast to literature detailing successful RCC using liquid amines and solid catalysts, which may benefit from more favorable mass transfer dynamics, as well as early stage reports into RCC solid-phase amine-Pd materials, whose findings we were not able to replicate. More judicious reaction selection and synthetic design strategies to match materials with process conditions offer alternative pathways for future research.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE; USDOE Office of Fossil Energy and Carbon Management (FECM)
Grant/Contract Number:
AC36-08GO28308; AC52-07NA27344
OSTI ID:
2502127
Report Number(s):
LLNL--JRNL-2005357; NREL/JA--5100-92577; MainId:94358; UUID:6359d1c8-6d43-4e01-a4fc-d339e35039d7; MainAdminId:76694
Journal Information:
ACS Omega, Journal Name: ACS Omega Journal Issue: 3 Vol. 10; ISSN 2470-1343
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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