Surface engineering-modulated porous N-doped rod-like molybdenum phosphide catalysts: towards high activity and stability for hydrogen evolution reaction over a wide pH range

Abstract

Electrochemical water splitting is an economic, green and sustainable route to produce hydrogen through the hydrogen evolution reaction (HER). Nowadays, noble metal-free phosphides have been widely used as catalysts in the HER, showing potential applications for both renewable energy production and environmental remediation. Nevertheless, developing surface self-doped MoP electrocatalysts with high HER performances in a wide pH range still remains a challenge. In this work, a novel synthesis strategy was developed to fabricate porous one-dimensional (1D) catalysts. More importantly, this study provides a new strategy to synthesize highly active catalysts with low costs for clean energy conversion.

Boosting the efficiency of urea synthesis via cooperative electroreduction of N2 and CO2 on MoP

“…S13b†), the peaks at 129.7 eV and 130.6 eV are assigned to the bonding between P and Mo, while the peak at 134.2 eV represents the P–O bond, which is a typical peak for the surface oxidation of metal phosphides in air. 50…”

Oxide Electrocatalysts Based on Earth-Abundant Metals for Both Hydrogen- and Oxygen-Evolution Reactions

“…Given that HER experiments are frequently done in 0.5 M H 2 SO 4 or 1 M KOH, ,,,, the same conditions were used in the study of the HER activities of Ca 2 FeMnO 6−δ , CaSrFeMnO 6−δ , and Sr 2 FeMnO 6−δ . Figure shows the polarization curves of the three materials, as well as that of the reference Pt/C catalyst (20 wt % Pt).…”

Two‐Dimensional Nanosheet Structure of Co, S Co‐Doped Carbon‐Framework Supported MoO2 for Hydrogen Evolution Reaction in Alkaline Solutions

“…The fabrication of MoO 2 was according to a previous literature . Simply speaking, 1.24 g (NH 4 ) 6 Mo 7 O 24 ⋅ 4H 2 O was dissolved in 15 mL deionized water, then adding 0.8 g EDA into the mixed solution.…”

“…The fabrication of MoO 2 was according to a previous literature. [29] Simply speaking, 1.24 g (NH 4 ) 6 Mo 7 O 24 • 4H 2 O was dissolved in 15 mL deionized water, then adding 0.8 g EDA into the mixed solution. After the solution was mixed homogeneously by magnetic stirring, 1 M HCl was dropwise added into the mixed solution until the white precipitate appeared.…”