Main-group indium single-atom catalysts for electrocatalytic NO reduction to NH₃

Abstract

Electrochemical reduction of NO to NH3 offers a fascinating approach for realizing both harmful NO treatment and efficient NH3 electrosynthesis. Main-group metal elements show great potential for designing high-performing NORR...

PdP2 Nanoparticles on Reduced Graphene Oxide: A Catalyst for the Electrocatalytic Reduction of Nitrate to Ammonia

“…The charge-density difference map (Figure b) shows a remarkable charge transfer (−0.84 |e|) from the bridge Pd site to *NO 3 for effective NO 3 – activation. Meanwhile, both charge accumulation and depletion occur on *NO 3 , suggesting that the bridge Pd site polarizes *NO 3 via a charge “donation–back-donation” mechanism. − In addition, the corresponding partial density of states analysis (Figure S12) displays a pronounced hybridization between the *NO 3 p and Pd d orbitals, indicating a strong Pd–*NO 3 interaction and further confirming the powerful NO 3 – activation on the bridge Pd site of PdP 2 (011). − …”

Amorphous NiB2for electroreduction of NO to NH3

“…Since the HER is the major competing reaction for the NORR, [57][58][59][60][61] the HER activity of the NORR-favored Ni site is further examined to assess its NORR selectivity. As shown in Fig.…”

Atomically isolated and unsaturated Sb sites created on Sb2S3for highly selective NO electroreduction to NH3

“…29 Meanwhile, the partially occupied p-orbitals in p-block metals are confirmed to be active for NvO bond dissociation, making p-block metal-based materials promising as a new class of NORR catalysts. [30][31][32][33][34] P-block Sb-based catalysts are appealing NORR candidates owing to the great capability of Sb sites to impede the HER and activate the nitrogen-containing molecules. 35 On the other hand, catalysts with atomically isolated sites are known to present outstanding catalytic performance because of their high atom utilization and optimal binding with intermediates and reactants.…”