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Related Experiment Video

Updated: Jan 10, 2026

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CO2 adaptive functional materials: Perspectives in geological utilization and sequestration.

Dan Zhao1, Yueliang Liu1, Zhide Ma2

  • 1Hainan Institute of China University of Petroleum (Beijing), Sanya 572025, China; State Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum (Beijing), Beijing 102249, China; College of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China.

Advances in Colloid and Interface Science
|November 21, 2025
PubMed
Summary

Advancing molecular design for CO₂-responsive materials is crucial for effective geological utilization and sequestration (CO₂-GUS). This research reviews innovative materials and proposes a framework for century-scale CO₂ management.

Keywords:
CO(2) geological utilization and sequestrationCO(2) nanobubblesCO₂ adaptive functional materialsDeep oil engineering materials

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Area of Science:

  • Geochemistry and Materials Science
  • Petroleum Engineering
  • Environmental Engineering

Background:

  • Global carbon neutrality goals necessitate advanced CO₂ geological utilization and sequestration (CO₂-GUS) technologies.
  • Current CO₂-GUS relies heavily on simulations, highlighting the need for integrated molecular design and engineering solutions.
  • Strategic importance of CO₂-GUS for energy security and climate change mitigation.

Purpose of the Study:

  • To review recent progress in molecular design strategies for CO₂-responsive functional materials.
  • To analyze the performance and mechanisms of gels, foams, nano-bubbles, and thickeners in CO₂-GUS.
  • To propose a framework for the long-term deployment of these materials in CO₂-GUS.

Main Methods:

  • Systematic review of CO₂-responsive gels, self-adaptive foams, nano-bubbles, and supercritical CO₂ thickeners.
  • Analysis of molecular design principles focusing on CO₂ affinity and deep subsurface adaptability.
  • Evaluation of engineering performance in synergistic CO₂-enhanced oil recovery (EOR) and sequestration processes.

Main Results:

  • Detailed analysis of temperature/salt tolerance for gels and thickeners, and CO₂ mobility control.
  • Elucidation of synergistic mechanisms for energy release enhancement and EOR via CO₂ nano-bubble bursting.
  • Clarification of colloidal interfacial behavior in CO₂ self-adaptive foams.

Conclusions:

  • Advanced molecular design is key for effective CO₂-GUS and enhanced oil recovery (EOR).
  • A century-scale deployment framework for CO₂ self-adaptive functional materials provides theoretical and technical support for safe CO₂ management.
  • Future research should explore advanced characterization techniques like atomic force microscopy (AFM) for molecular-level insights.