Synthesis of unconventional Pd–Se nanoparticles for phase-dependent ethanol electrooxidation

Abstract

By tuning the amount of the Se precursors during the synthesis, orthorhombic PdSe2, cubic Pd17Se15, and monoclinic Pd7Se2 nanoparticles are synthesized, respectively, which show phase-dependent electrocatalysis for ethanol oxidation reaction....

Synthesis and Electrocatalytic Applications of Noble Metal Chalcogenides Nanomaterials

“…In a following study, Yang et al successfully synthesized PdÀ Se nanoparticles with different phases by adopting the Se powder as the precursor of Se. [15] The Se precursor were prepared by mixing Se powder and sodium borohydride (NaBH 4 ), which were found to be highly reactive and suitable for synthesizing palladium selenides. Orthorhombic PdSe 2 , cubic Pd 17 Se 15 , and monoclinic Pd 7 Se 2 nanoparticles are successfully obtained by varying the amount of Se powder.…”

“…[37] In a recent study, Yang et al synthesized PdÀ Se nanoparticles with different crystal structures as efficient electrocatalysts for the EOR. [15] The as-synthesized PdÀ Se nanoparticles exhibit phase-dependent electrocatalysis for EOR (Figure 8a and b). Among them, The PdSe 2 phase displays the highest mass activity and stability, which may be contribute to its higher C1 selectivity and good tolerance for the intermediate species during the ethanol electrooxidation.…”

“…In a recent study, Yang et al. synthesized Pd−Se nanoparticles with different crystal structures as efficient electrocatalysts for the EOR [15] . The as‐synthesized Pd−Se nanoparticles exhibit phase‐dependent electrocatalysis for EOR (Figure 8a and b).…”

Hybrid water electrolysis with integrated and cascading reactions using two-dimensional electrocatalysts

“…31 Accordingly, using the selected reactions to replace the OER and assemble a hybrid electrolyzer can deliver higher current density with lower voltage input, increasing the energy conversion efficiency. Nowadays, various emerging anodic reactions as OER alternatives have been investigated, including simple compound electrooxidation (i.e., urea oxidation reaction 32,33 and hydrazine oxidation 34,35 ) and complex compound electrooxidation 20 (i.e., ethanol oxidation [36][37][38][39] and HMF oxidation [40][41][42] ) are proven. Theoretically, these reactions generally show lower electrochemical potential than the OER, leading to lower overpotentials for hybrid water splitting and boosting HER performance.…”

“…, urea oxidation reaction 32,33 and hydrazine oxidation 34,35 ) and complex compound electrooxidation 20 ( i.e. , ethanol oxidation 36–39 and HMF oxidation 40–42 ) are proven. Theoretically, these reactions generally show lower electrochemical potential than the OER, leading to lower overpotentials for hybrid water splitting and boosting HER performance.…”