ChemInform Abstract: First Catalytic Fixation of Nitrogen by Photocatalytic CdS/Pt/RuO₂ Particulate System.

Abstract

During the photolysis ofun aqueous solution of the Ru(Il)‐dinitrogen complex [Ru(HEDTA)(N3)]′ (I) in the presence of the photocatulytic CdS/Pt/ RuO2 particulate System at 505nm and 30°C in the presence of N3 (bubbling through solution), NH; is liberated.

Recent Developments in Polymeric Carbon Nitride-Derived Photocatalysts and Electrocatalysts for Nitrogen Fixation

“…Photocatalytic N 2 Reduction. Since the pioneering work reported by Schrauzer and Guth in 1977, 26 considerable attention has been devoted to solar-driven N 2 reduction over various semiconductors, such as TiO 2 , 28,29,87 BiOBr, 88−90 PCN, 52,91 CdS, 92,93 ZnO 94,95 and so on, because of its cleaner and sustainable features. Even so, the lower solar-to-chemical conversion (SCC) efficiency is a stumbling block for solardriven N 2 reduction where the limited effective active sites, unsatisfactory light absorption, and poor photogenerated charge separation are regarded as the main disadvantages.…”

Recent progress in research and design concepts for the characterization, testing, and photocatalysts for nitrogen reduction reaction

“…4,8,10 Upon the N 2 chemisorption at active sites (e.g., surface defects), the N 2 molecules have yet to receive electrons towards efficient activation, often forming a bottleneck, so a suitable catalyst is required to provide electrons to reduce the activation energy of the NRR. [1][2][3][4][5][6][7][8][9][10]112,114 Generally, based on the composition of chemical elements, catalysts used for photocatalytic NRR are mainly divided into the following categories, such as single atom, [20][21][22][23][24][25][26]85 transition metal oxides, [27][28][29][30][31][32][33][34][35][36][37][38][39] transition metal sulfides, [40][41][42][43][44][45][46][47][48] bismuth oxide (oxyhalides), [49][50]…”

“…Metal sulfides have many applications in photocatalytic water splitting to produce hydrogen, so they have also received extensive attention in photocatalytic NRR. [40][41][42][43][44][45][46][47][48] In contrast to metal oxides, metal sulfides generally have a narrow band gap. Therefore, they can absorb visible light to generate electrons and holes.…”

“…In addition, the conductive reduction potential of N 2 is less negative than their CB, so they can reduce N 2 to NH 3 . [40][41][42][43][44][45][46][47][48]98 Next, we simply introduce CdS, MoS 2 , tungsten sulfide (WS 2 ), and zinc sulfide (ZnS).…”

“…[5][6][7][8] Therefore, it is of great significance to comprehensively understand the research status of nitrogen reduction photocatalysts and the design and preparation principles. At present, the semiconductor NRR photocatalytic materials are mainly concentrated in single atoms, [20][21][22][23][24][25][26] transition metal oxides, [27][28][29][30][31][32][33][34][35][36][37][38][39] transition metal sulfides, [40][41][42][43][44][45][46][47][48] bismuth oxide (oxyhalides), [49][50][51][52] graphitic C 3 N 4 , [53][54][55][56][57][58] and bionic materials. [14][15][16][17][18] The design strategies for semiconductor materials main...…”