Fig. 5: Redox cycling of oxygen storage materials in a TGA. | Nature Communications

Fig. 5: Redox cycling of oxygen storage materials in a TGA.

From: Precursor engineering of hydrotalcite-derived redox sorbents for reversible and stable thermochemical oxygen storage

Fig. 5: Redox cycling of oxygen storage materials in a TGA.The alternative text for this image may have been generated using AI.

a Weight change over 100 cycles of O2 release (CuO to Cu2O) under N2 of CuMgAl-MMO-LS. b weight change profile during O2 release under N2. Three typical samples were tested: CuAl-MMO, CuMgAl-MMO-LS (low strength), and CuMgAl-MMO-HS (high strength). The tests were performed in the TGA at 900 °C. c O2 release capacity over 100 cycles of O2 release. d XRD patterns of CuMgAl-MMO-LS at different states; e CuAl-MMO in different redox states.

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