Surface defect-regulated PdCu/TiO_2−x promoting efficient electrocatalytic nitrogen reduction

Abstract

Due to the utilization of renewable energy and proton sources, electrochemical nitrogen reduction reaction is considered as an efficient, sustainable, and carbon-neutral route to replace the industrial Haber-Bosch process. However,...

Enhanced localized electron density from PdCu nanoparticle loading on a defective TiO2 support for selective nitrate electroreduction to ammonia

“…As a result, the desorption of *N 2 is inhibited and the formation of *NNH is promoted, consistent with the NRR study. 32…”

Theoretical and experimental progress of metal electrocatalysts for the nitrogen reduction reaction

“…151 Moreover, Liu et al synthesised PdCu alloys supported on O vacancy-rich TiO 2 via the co-reduction method and revealed that the realized synergistic effect originates from the introduction of Cu for alloy architecture and the defect-rich surface. 152 In particular, the pure transition metal alloy can employ for the NRR. Castellano-Varona et al alloyed Co with Mo to improve the poor NRR activity of Co NPs.…”

“…Xue et al introduced Ni to Au nanoparticles and further boosted the NRR process with a FE of 67.8% 151. Moreover, Liu et al synthesised PdCu alloys supported on O vacancy-rich TiO 2 via the co-reduction method and revealed that the realized synergistic effect originates from the introduction of Cu for alloy architecture and the defect-rich surface 152. In particular, the pure transition metal alloy can employ for the NRR.…”

Tandem Nitrate Electroreduction to Ammonia with Industrial-Level Current Density on Hierarchical Cu Nanowires Shelled with NiCo-Layered Double Hydroxide

“…The electrocatalytic nitrogen reduction reaction (NRR) is an alternative method for green and sustainable NH 3 synthesis under ambient conditions. However, the electrocatalytic conversion of the NRR suffers from a low NH 3 production rate and unsatisfactory partial current densities of NH 3 (mostly <1 mA cm –2 ), owing to the strong NN triple bond (941 kJ mol –1 ) and low solubility of N 2 in aqueous solution. − From the energy and environmental viewpoints, the electrochemical nitrate reduction reaction (NO 3 RR) is considered an attractive alternative for large attainable NH 3 production due to the low dissociation energy of NO (204 kJ mol –1 ) and the high NO 3 – solubility. − In addition, NO 3 – is widely abundant as groundwater pollution in industrial wastewater, liquid nuclear waste, chemical fertilizers, and livestock excrement, resulting in a threat to human health. , Therefore, the NO 3 RR is highly attractive for producing value-added NH 3 by turning waste into treasure, opening up an economical and feasible way to synthesize green NH 3 . , …”