Atomically Fe-doped MoS2−x with Fe-Mo dual sites for efficient electrocatalytic NO reduction to NH3

Sub-nm RuOx Clusters on Pd Metallene for Synergistically Enhanced Nitrate Electroreduction to Ammonia

“…In light of the LSV results, the initial electrolysis potential of 0.0 V is chosen to quantitatively evaluate the NO 3 RR performance of RuO x /Pd through combined chronoamperometric (1 h electrolysis) and colorimetric measurements. − Figure a shows that RuO x /Pd delivers a maximum NH 3 -Faradaic efficiency of 98.6% with a corresponding NH 3 yield rate of 23.5 mg h –1 cm –2 and a partial current density of 296.3 mA cm –2 (Figure S13) at −0.5 V vs RHE, surpassing those of almost all state-of-the-art NO 3 RR catalysts ever reported (Table S1). The controlled UV–vis tests (Figure S14) and qualitative/quantitative 14 NO 3 – / 15 NO 3 – isotope labeling nuclear magnetic resonance (NMR) experiments (Figure b and Figure S15) forcefully affirm that the generated NH 3 stems from the NO 3 RR on RuO x /Pd. − …”

Self-Tandem Electrocatalytic NO Reduction to NH3 on a W Single-Atom Catalyst

“…29−34 Electrochemical NORR measurements are conducted in NO-saturated 0.5 M Na 2 SO 4 using a gastight H-type cell. 9 As revealed by the LSV curves (Figure 3a), W 1 /MoO 3−x shows an enhanced current density (j) in NO-saturated electrolyte compared to in Ar-saturated electrolyte, implying that NORR occurs on W 1 /MoO 3−x . We then quantitatively determine the NORR performance of W 1 /MoO 3−x with the combined chronoamperometric (1 h electrolysis) and colorimetric methods (Figures S13 and S14).…”

“…Electrocatalytic NO reduction to NH 3 (NORR) emerges as a promising solution to realize both harmful NO mitigation and green NH 3 synthesis. − However, the complex five-electron NORR process still suffers from sluggish kinetics and unwanted side reactions including the hydrogen evolution reaction (HER) . Therefore, it is highly required to develop efficient NORR catalysts to enhance the NO-to-NH 3 conversion efficiency. − …”

Ce-doped MoS2−xnanoflower arrays for electrocatalytic nitrate reduction to ammonia

“…MD simulations were first employed to investigate the dynamic NO 3 − adsorption on MoS 2 and Ce-MoS 2−x . [58][59][60][61][62] After simulations, in comparison with MoS 2 (Fig. 4a), more NO 3 − coverage on Ce-MoS 2−x can be observed in Fig.…”