Electrochemical NO reduction to NH3 on Cu single atom catalyst

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. − …”

p-Block Antimony Single-Atom Catalysts for Nitric Oxide Electroreduction to Ammonia

“…We then examine all possible NORR pathways and determine the most energetically preferred NORR pathway on both a-MoO 3 and Sb 1 /a-MoO 3 . As illustrated in Figure 4g, the electrocatalytic NO-to-NH 3 process generally proceeds through four pathways, namely, distal-N, distal-O, alternating-N, and alternating-O, 2,9 as well as the possible mixed pathways. The DEMS spectra (Figure 4e Figure 5a compares the free energy profiles of most energetically preferred alternating-N pathway on the Mo site (a-MoO 3 ) and Sb 1 site (Sb 1 /a-MoO 3 ).…”

First-principles-driven catalyst design protocol of 2D/2D heterostructures for electro- and photocatalytic nitrogen reduction reaction

“…12,13 This process leads to a massive carbon footprint ca. 1.87 ton CO 2 per ton NH 3 , 14 and also requires extreme reaction conditions: high temperature (300-550 1C) and pressure (15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25). 15 Another route for NH 3 synthesis is through biochemical processes, in which the main practical problem found is that the series of biochemical steps would result in a delayed reaction, giving a low reaction rate that reduces costeffectiveness.…”

“…NO reduction to NH 3 or the NORR). [21][22][23] Thus, catalyzing the main reaction -the NRR, while suppressing the HER is an important goal for efficient catalyst exploration and design. Various catalytic materials and synthesis strategies have been utilized, i.e., co-catalyst addition, Anchalee Junkaew received her PhD in materials science and engineering at Texas A&M university in 2013.…”

“…These materials include pnictogens, carbon nitride (C 3 N 4 ), hexagonal boron nitride (h-BN), layered double hydroxide (LDH), metal chalcogenide, MBenes and MXenes. [21][22][23][27][28][29][30][31][32] Their applications are broad as they can be used in electronic devices, energy storage, sensors, and catalytic reactions. One strategy in the utilization of 2D materials has been widened by depositing a zero-dimensional (0D), one-dimensional (1D) or three-dimension (3D) layer, or stacking different 2D materials to alter the properties, resulting in a so-called ''heterostructure''.…”