Matches in SemOpenAlex for { <https://semopenalex.org/work/W4367555493> ?p ?o ?g. }
- W4367555493 abstract "Abstract Direct electrochemical nitrate reduction reaction (NITRR) is a promising strategy to alleviate the unbalanced nitrogen cycle while achieving the electrosynthesis of ammonia. However, the restructuration of the high-activity Cu-based electrocatalysts in the NITRR process has hindered the identification of dynamical active sites and in-depth investigation of the catalytic mechanism. Herein, Cu species (single-atom, clusters, and nanoparticles) with tunable loading supported on N-doped TiO 2 /C are successfully manufactured with MOFs@CuPc precursors via the pre-anchor and post-pyrolysis strategy. Restructuration behavior among Cu species is co-dependent on the Cu loading and reaction potential, as evidenced by the advanced operando X-ray absorption spectroscopy, and there exists an incompletely reversible transformation of the restructured structure to the initial state. Notably, restructured CuN 4 &Cu 4 deliver the high NH 3 yield of 88.2 mmol h −1 g cata −1 and FE (~ 94.3%) at − 0.75 V, resulting from the optimal adsorption of NO 3 − as well as the rapid conversion of *NH 2 OH to *NH 2 intermediates originated from the modulation of charge distribution and d -band center for Cu site. This work not only uncovers CuN 4 &Cu 4 have the promising NITRR but also identifies the dynamic Cu species active sites that play a critical role in the efficient electrocatalytic reduction in nitrate to ammonia." @default.
- W4367555493 created "2023-05-01" @default.
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- W4367555493 date "2023-04-30" @default.
- W4367555493 modified "2023-10-18" @default.
- W4367555493 title "Identification of Dynamic Active Sites Among Cu Species Derived from MOFs@CuPc for Electrocatalytic Nitrate Reduction Reaction to Ammonia" @default.
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- W4367555493 doi "https://doi.org/10.1007/s40820-023-01091-9" @default.
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