Transformation of a new polyoxometalate into multi-metal active sites on ZIF-derived carbon nanotubes as bifunctional cathode catalyst and dendrite-free anode coating for Zn-air batteries

Engineering built-in electric fields in oxygen-deficient MnO-CeO2@Cs catalysts: enhanced performance and kinetics for the oxygen reduction reaction in aqueous/flexible zinc–air batteries

“…Notably, MnO-CeO 2 manifests a heightened DOS adjacent to the Fermi level, indicating its enhanced conductivity and electrocatalytic prowess compared to its MnO and CeO 2 counterparts. 54 Remarkably, the ε d values for MnO and CeO 2 were −0.32 eV and −3.75 eV, respectively (Fig. 6d), implying that the adsorption of reaction intermediates at these respective sites may be either excessively weak or overly intense.…”

FeNi Confined in N-Doped Carbon as a Highly Efficient Bi-Functional Catalyst for Rechargeable Zn–Air Batteries

“…It was determined that the electron transfer number(n) is a crucial indicator of the catalyst's ORR activity. Using the K-L equation, it has been calculated that the electron transfer number(n) of FeNi@NC was close to 4.0 (Figure 4d), suggesting a four-electron reaction pathway for ORR [39,40].…”

Two {CuI[P4Mo6]2}-Based Coordination Polymers Incorporating In Situ Converted Tetrapyridyl Ligands for Trace Analysis of Nitrofuran Antibiotics

“…35,36 Reports indicate that hydrogen bonding can enhance electrochemical behavior by providing more mobile protons. 37 The addition of nitrogen-containing ligands, such as thiazole, pyridine, and imidazole, to the system facilitates the formation of hydrogen bond interactions. 38 (SI)).…”

“…These {P 4 Mo 6 } clusters exhibit distinct redox properties and possess a higher number of catalytically active sites due to all Mo atoms being in the +5 oxidation state and the exceptional catalytic performance of the crystal doped with P, thanks to the semifull structure of the P atom. − To further explore the electrochemical potential of these inorganic clusters, researchers have been combining {P 4 Mo 6 } clusters with organic components to synthesize {P 4 Mo 6 }-based complexes with novel structures and unique electrochemical properties. ,, For example, Han’s group combined 1,2-bis­(4-pyridyl)­ethylene as an organic ligand with the {P 4 Mo 6 } polyanionic unit, resulting in two {P 4 Mo 6 }-based compounds capable of electrochemical trace detection of heavy metal ion Cr­(VI) and tetracycline (TC) with low detection limits, making them potential candidates for practical application in future sensors for effective trace analysis . Additionally, discrete structures assembled by weak interactions among POM-based architectures stand out due to their exposed active sites and potential hydrogen-bonding effect. , Reports indicate that hydrogen bonding can enhance electrochemical behavior by providing more mobile protons . The addition of nitrogen-containing ligands, such as thiazole, pyridine, and imidazole, to the system facilitates the formation of hydrogen bond interactions. , …”