Performance of intrinsic heteroatoms in cobalt phosphide loaded ginkgo leave-based carbon material on promoting the electrocatalytic activity during hydrogen evolution reaction and oxygen evolution reaction

Experimentally revealed and theoretically certified synergistic electronic interaction of V-doped CoS for facilitating the oxygen evolution reaction

“…5(e), it can be concluded from the results of UPS that the secondary electronic cutoff edge of the catalytic materials is strongly associated with the doping of V and Co metal. 57 The work function ( W F ) of metal materials is an initial energy electron from the metal within the minimum energy required to escape to a vacuum. 58 The W F is usually about half the ionization energy of a metal free atom.…”

Theoretical Revelation and Experimental Verification Synergistic Electronic Interaction of V-Doped RuNi as an Efficient Bifunctional Electrocatalyst for Overall Water Splitting

“…49 According to the UPS results depicted in Figure 5e, it can be inferred that there is a significant correlation between the doping of V and Mo metals. 50 The metal work function (W F ) represents the minimum energy required for an electron to escape from the metal and enter a vacuum. 51 An alternative expression for calculating the W F can be found in eq S8.…”

“…We utilized ultraviolet photoelectron spectroscopy (UPS) to survey the band structures of all test samples . According to the UPS results depicted in Figure e, it can be inferred that there is a significant correlation between the doping of V and Mo metals . The metal work function (W F ) represents the minimum energy required for an electron to escape from the metal and enter a vacuum .…”

One-pot synthesis of biomass-derived porous carbons for multipurpose energy applications

“…For instance, carbon-supported cobalt nanoparticles and phosphide (CoP) are regarded as appealing candidates for noble metal-based catalysts for both the HER and OER. 212–214 P atoms with high electronegatively in CoP are found to be the proton acceptor and draw electrons from metals, accelerating electron transfer and enhancing the electrocatalytic activity. 212 Through simple pyrolysis, the N and S atoms can be embedded into the carbon skeleton, endowing biomass-derived carbon with the possibility of being the support for CoP.…”

“…212–214 P atoms with high electronegatively in CoP are found to be the proton acceptor and draw electrons from metals, accelerating electron transfer and enhancing the electrocatalytic activity. 212 Through simple pyrolysis, the N and S atoms can be embedded into the carbon skeleton, endowing biomass-derived carbon with the possibility of being the support for CoP. Furthermore, the CoP embedded in N, S-doped porous carbon showed excellent activity toward the HER (160 mV, 10 mA cm −2 ) and OER (198 mV, 10 mA cm −2 ).…”