Rh nanoparticle functionalized heteroatom-doped hollow carbon spheres for efficient electrocatalytic hydrogen evolution

Abstract

Overall hydrazine splitting (OHzS) is a promising alternative for overall water splitting (OWS) towards hydrogen production due to the anodic hydrazine oxidation reaction (HzOR) involving less electrons and faster kinetics...

Advances in the Electrocatalytic Hydrogen Evolution Reaction by Metal Nanoclusters‐based Materials

“…The high surface free energy of MNCs often results in their aggregation into NPs. [ 90–92 ] Thus, supports with high specific surface areas are used to stabilize cluster atoms. [ 93–95 ] which enhance the HER activity for the following reasons: the supported highly dispersed MNCs provide unique coordinate environments and ensure abundant active centers during electrochemical reactions; the electronic structure of catalysts can be tailored by the electron transfer effect between metal atoms and supports, which effectively influence the adsorption of reactants on the catalytic centers.…”

Oxygenated P/N co-doped carbon for efficient 2e−oxygen reduction to H2O2

“…2A, the N 1s XPS spectra can be divided into four dominant components: pyridinic N ($398.5 eV), pyrrolic N ($400.3 eV), graphitic N ($401.6 eV), and N + -O ($403.5 eV). 49 Fig. 2B shows that the total N contents of O-P/N-C materials gradually decrease with increasing pyrolysis temperature.…”

Asymmetric Coordination Environment Engineering of Atomic Catalysts for CO2 Reduction

“…causes considerable trouble in mapping the spatial positions of the near-end light atoms. In addition, XAFS characterization can directly distinguish between metal NPs and atomically dispersed atoms, but the acquired coordination structure is generally an averaged result [ 178 , 179 , 180 , 181 , 182 , 183 , 184 , 185 ]. Currently, a combination of characterization techniques, such as electron energy loss spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), scanning tunneling microscopy (STM), non-contact atomic force microscopy (AFM), and DFT theoretical modeling, is required to obtain a relatively reliable local structure determination [ 181 , 182 , 183 , 184 , 185 , 186 , 187 , 188 , 189 ].…”

“…In addition, XAFS characterization can directly distinguish between metal NPs and atomically dispersed atoms, but the acquired coordination structure is generally an averaged result [ 178 , 179 , 180 , 181 , 182 , 183 , 184 , 185 ]. Currently, a combination of characterization techniques, such as electron energy loss spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), scanning tunneling microscopy (STM), non-contact atomic force microscopy (AFM), and DFT theoretical modeling, is required to obtain a relatively reliable local structure determination [ 181 , 182 , 183 , 184 , 185 , 186 , 187 , 188 , 189 ]. With the emergence of various in situ/operando characterization techniques in recent years, it has become feasible to directly monitor catalytic reaction processes, which would be extremely potent if applied in conjunction with advanced theoretical modeling.…”