Search NASA⌕ Search
Home/Archive/DOE OSTI

DOE OSTI · 3008076

Cryogenic Carbon Monoxide Oxidation on Cuprous Oxide

Karagoz, Burcu [Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Diamond Light Source, Ltd.] (ORCID:000000021019051X)·Hu, Tianhao [Stony Brook University, NY (United States)] (ORCID:0000000320789275)·Stenlid, Joakim Halldin [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). SUNCAT Center for Interface Science and Catalysis; Stanford University, CA (United States); Stockholm University (Sweden); KTH Royal Inst. of Technology, Stockholm (Sweden); Chalmers University of Technology, Gothenburg (Sweden)] (ORCID:0000000338322331)·Hu, Xiaoming [KTH Royal Inst. of Technology, Stockholm (Sweden)]·Soldemo, Markus [Stockholm University (Sweden); KTH Royal Inst. of Technology, Stockholm (Sweden)]·Abild‐Pedersen, Frank [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). SUNCAT Center for Interface Science and Catalysis] (ORCID:000000021911074X)·Marks, Kess [Stockholm University (Sweden)] (ORCID:0000000218054993)·Öström, Henrik [Stockholm University (Sweden)] (ORCID:0000000339206965)·Stacchiola, Dario [Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)] (ORCID:0000000154943205)·Weissenrieder, Jonas [KTH Royal Inst. of Technology, Stockholm (Sweden)] (ORCID:0000000316314293)·Head, Ashley R. [Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)] (ORCID:0000000187330165)
View original source ↗Read source document ↗Export metadata ↓

Abstract

Performing oxidation reactions at low temperatures using earth-abundant materials is crucial for advancing solutions for sustainable chemistry. CO oxidation serves as a benchmark reaction to characterize oxidation and to advance fundamental concepts in surface chemistry. While there are several examples of CO oxidation occurring on metal oxides at low temperatures, from 300 K to ∼200 K, reactivity in the cryogenic temperature regime typically requires a metal nanoparticle on a metal oxide. Here, we show oxygen atoms on the (111) facet of Cu 2 O react with CO to form CO 2 at temperatures below 100 K. Combining spectroscopic experimental evidence with calculations, we propose a low barrier path for CO oxidation at reconstructed surface sites on Cu 2 O(111). This finding is a rare example of an earth-abundant metal oxide, in this case copper, that can provide highly reactive multifunctional sites, enabling both adsorption and reaction fundamental steps toward the efficient heterogeneous oxidation of chemicals.

Explore related subjects

36 MATERIALS SCIENCECO oxidationCuprous oxideDensity functional calculationsIRRASSurface chemistry

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Karagoz, Burcu [Science and Technology Facilities Council (STFC), Oxford (United Kingdom). Diamond Light Source, Ltd.] (ORCID:000000021019051X), Hu, Tianhao [Stony Brook University, NY (United States)] (ORCID:0000000320789275), Stenlid, Joakim Halldin [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). SUNCAT Center for Interface Science and Catalysis; Stanford University, CA (United States); Stockholm University (Sweden); KTH Royal Inst. of Technology, Stockholm (Sweden); Chalmers University of Technology, Gothenburg (Sweden)] (ORCID:0000000338322331), Hu, Xiaoming [KTH Royal Inst. of Technology, Stockholm (Sweden)], Soldemo, Markus [Stockholm University (Sweden); KTH Royal Inst. of Technology, Stockholm (Sweden)], Abild‐Pedersen, Frank [SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). SUNCAT Center for Interface Science and Catalysis] (ORCID:000000021911074X), Marks, Kess [Stockholm University (Sweden)] (ORCID:0000000218054993), Öström, Henrik [Stockholm University (Sweden)] (ORCID:0000000339206965), Stacchiola, Dario [Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)] (ORCID:0000000154943205), Weissenrieder, Jonas [KTH Royal Inst. of Technology, Stockholm (Sweden)] (ORCID:0000000316314293), Head, Ashley R. [Brookhaven National Laboratory (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)] (ORCID:0000000187330165). 2025-11-10. Cryogenic Carbon Monoxide Oxidation on Cuprous Oxide. https://doi.org/10.1002/anie.202515673

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

DOE OSTI2026

Cyclic moisture reactivation of calcium sorbents for long duration thermochemical energy storage

The transition to a flexible and reliable energy infrastructure, using electro-thermal energy generation technologies such as geothermal, concentrated solar power, and nuclear, usually demands simultaneous advancement of thermal energy storage (TES) to support on-demand electricity generation and industrial applications while mitigating the inherent intermittency of renewable energy sources and power outages from direct energy generation. Among TES technologies, thermochemical energy storage (TCES) based on calcium looping emerges as a compelling high-power energy storage candidate due to its high reaction enthalpy, compatibility with elevated operating temperatures, and abundance of low-cost materials. However, the long-term durability of calcium-based sorbents for TCES is hindered by surface sintering and particle aggregation, leading to performance degradation over repeated thermal cycles. This study explores a moisture hydration-based strategy to regenerate a degraded calcium sorbent and mitigate performance degradation for long duration TCES. The addition of moisture transforms calcium oxide into calcium hydroxide and produces intercalation water layers, associated with a regenerated surface area and reduced calcium oxide crystallite size. Both these effects are beneficial in restoring the sorbents' reactivity for carbonization. Additionally, an optimized hydration-assisted reactivation protocol balances the recovered energy storage capacity with heating penalty required for moisture removal from hydrated samples, resulting in an enhanced energy storage capacity up to 176% compared to benchmark sorbents that undergo cycling without reactivation after 60 cycles. In conclusion, these results highlight the potential of hydration-assisted reactivation to enhance the long-term performance of TCES, providing an effective pathway to advancing electro-thermal storage technologies.

36 MATERIALS SCIENCE↗