Dual-mode textiles made of nanoPE provide both cooling and heating, which helps humans adapt to larger temperature changes.

We report the discovery of a new class of oxides – poly-cation oxides (PCOs) – that consist of multiple cations and can thermochemically split water in a two-step cycle to produce hydrogen (H2) and oxygen (O2).

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Dissociation of CO2 to form CO can play a key role in decarbonizing our energy system. Fe-poor ferrites exhibit significantly higher capacity for thermochemical CO2 dissociation than state-of-the-art materials such as ceria and perovskites.

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The solubilities of La and Ni on LaNiO3 in Li/K carbonate eutectic with La2O3 have been investigated. The solubilities of La and Ni were 1.9 × 10−2 (mole fraction) and 1.2 × 10−5 (mole fraction) under CO2/O2 of 0.7/0.3 at 923 K. The extraction of Ni from LaNiO3 in molten carbonate saturated with La2O3 was almost 57% lower than that from NiO in a molten carbonate without La2O3.

Thermochemical looping splitting of water and carbon dioxide (CO2) with greenhouse-gas-free (GHG-free) energy has the potential to help address the Gt-scale GHG emissions challenge. Reaction thermodynamics largely contributes to the...