Data requirements for the determination of a sub-centimetre geoid

Core–shell structures of Cu2O constructed by carbon quantum dots as high-performance zinc-ion battery cathodes

“…30 The defects may be generated by the lattice mismatch caused via the extrusion of Cu 2 O by CDs in the growth. 31 The measured d-value crystal plane spacings are 0.240 and 0.247 nm for (111) and ( 200 25 To evaluate the electrochemical performance of Cu 2 O and Cu 2 O-CDs-X cathodes and the effect of CDs on the electrochemical performance of composites, the AZIBs were assembled using 2 M ZnSO 4 as the electrolyte and a Zn foil as the anode, and a series of electrochemical tests were carried out from 0.2 to 1.1 V (relative to Zn 2+ /Zn). This journal is © The Royal Society of Chemistry 2023 discharge specic capacity of the Cu 2 O-CDs-10 electrode is 350 mA h g −1 at 0.1 A g −1 .…”

“…30 The defects may be generated by the lattice mismatch caused via the extrusion of Cu 2 O by CDs in the growth. 31 The measured d -value crystal plane spacings are 0.240 and 0.247 nm for (111) and (200) in Cu 2 O-CDs-20 respectively, which increased compared with pure Cu 2 O, and it is attributed to the coordination adsorption of CDs during nucleation and growth of Cu 2 O. The increased crystal plane spacing of Cu 2 O-CDs-20 facilitates the embedding of Zn 2+ , suggesting that Cu 2 O-CDs-20 should have better transport kinetics of Zn 2+ .…”