Regularities of nitrate electroreduction on Pt(S)[n(100)x(110)] stepped platinum single crystals modified by copper adatoms

Abstract

Regularities of nitrate electroreduction on Pt(S)[n(100)x(110)] stepped platinum single crystals modified by copper adatoms,

Restoring the Nitrogen Cycle by Electrochemical Reduction of Nitrate: Progress and Prospects

“…Cu adatoms can be deposited onto the substrate through direct electrodepositions. [105][106][107][108] Chen et al modified Pt (100) with Cu adatoms, with the selective conversion from NO 3 − to N 2 achieved on Cu/Pt(100). [107] This selective conversion is realized in different potential windows.…”

“…Furthermore, the nitrate reduction can be regulated by locating Cu adatoms on steps in Pt(S)[n(100) × (110)] with different terrace atom densities. [ 108 ] At low surface coverages of Cu, there is a pronounced dependence of the nitrate reduction rate on terrace width. The rate increases in the sequence of Pt(210) < Pt(410) < Pt(610).…”

Nitrate anion reduction in aqueous perchloric acid as an electrochemical probe of Pt{1 1 0}-(1 × 1) terrace sites

“…Nitrate reduction at metal electrode surfaces has been the subject of intensive research over many years [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18], due in many respects to its relevance to several topical environmental concerns such as groundwater remediation (denitrification) [19][20][21], nuclear waste management [22] and food safety [23]. The complexity of this electrochemical reaction is broadly acknowledged [13] and may be ascribed, at its most basic level, to the many oxidation states (+5 to -3) available to nitrogen-containing nitrate reduction reaction intermediates (e.g.…”

Cu Modified Pt Nanoflowers with Preferential (100) Surfaces for Selective Electroreduction of Nitrate

“…Bimetallic electrocatalysts based on Pt(100) have long been investigated for nitrate reduction in acid and neutral solutions, showing NH 3 and N 2 O as the major final products [11][12][13][14][15][16]. However, for selecting N 2 as the main product, the study of alkaline solutions is essential for nitrate reduction on such a catalyst which would make use of Pt(100).…”