Nested hollow architectures of nitrogen-doped carbon-decorated Fe, Co, Ni-based phosphides for boosting water and urea electrolysis

Abstract Tailoring the nanostructure/morphology and chemical composition is important to regulate electronic configuration of electrocatalysts thus enhance their performance for water urea electrolysis. Herein, nitrogen-doped carbon-decorated tricomponent metal phosphides FeP 4 nanotube@Ni-Co-P nanocage (NC-FNCP) with unique nested hollow architectures are fabricated by a self-sacrifice template strategy. Benefiting from multi-component synergy, modification carbon, modulation porous morphology, NC-FNCP facilitates rapid electron/mass transport in NC-FNCP-based anode shows low potentials 248 mV 1.37 V (vs. reversible hydrogen electrode) attain 10 mA/cm 2 oxygen evolution reaction (OER) oxidation (UOR), respectively. In addition, overall electrolysis drives at comparatively voltage 1.52 RHE) that 110 lower than electrolysis, as well exhibits excellent stability over 20 h. This work strategizes multi-shell-structured electrocatalyst multi-compositions explores its applications sustainable combination production sewage remediation.