Related Experiment Video
Updated: Jan 22, 2026
09:45
Epitaxial Growth of Perovskite Strontium Titanate on Germanium via Atomic Layer Deposition
Published on: July 26, 2016
12.8K
Exsolution-Driven Layered Perovskites for Stable Thermal Carbon Capture and Utilization of Waste Streams
Guicai Liu1, Jiali Guo1, Grzegorz Lisak1,2
1Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore, Singapore.
Advanced Materials (Deerfield Beach, Fla.)
|January 21, 2026
Summary
This study introduces a novel dual-functional material for integrated carbon capture and utilization (ICCU), enhancing cyclic stability for CO2 valorization and solid waste management at high temperatures.
Area of Science:
- Materials Science
- Chemical Engineering
- Environmental Science
Background:
- Integrated carbon capture and utilization (ICCU) offers a sustainable pathway for valorizing CO2 and solid waste.
- Maintaining cyclic stability of ICCU systems under high-temperature conditions is a significant challenge.
Purpose of the Study:
- To develop dual-functional materials for stabilized ICCU reactions.
- To engineer Ni-substrate interactions for enhanced performance in high-temperature CO2 utilization.
Main Methods:
- Construction of Ni-substituted layered perovskite Sr2TiO4 materials.
- In situ exsolution of Ni nanoparticles from the Sr2TiO4/SrTiO3 matrix.
- Systematic experiments, characterizations, and electronic structure analysis.
Main Results:
- Gradual Ni exsolution yielded well-dispersed, surface-anchored Ni nanoparticles, enhancing cyclic stability.
- Achieved progressively increasing and stabilized CO2 uptakes and syngas productions across cycles.
- Exsolved Ni-driven CO2 splitting showed kinetically unfavorable CO emissions, suppressed by O2 in flue gas.
Conclusions:
- Demonstrated a robust strategy for efficient co-utilization of CO2 and solid waste under demanding thermochemical conditions.
- In situ exsolution of Ni nanoparticles provides a dynamic stabilization mechanism for ICCU.
- The engineered material shows promise for high-temperature carbon capture and utilization applications.
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