High-valent metalloporphyrins in hydrocarbon activation: metal(V)-oxo or metal(V)-hydroxo? Mn(v) porphyrins featuring an oxo ligandtransto a hydroxo group offer a unique opportunity to compare the hydrogen atom abstraction ability of a protonatedvs.a non-protonated high-valent oxo metal species...
The Pt2CoCu and Pt2CoNi catalysts were synthesized by the wet-impregnation of H2PtCl6and corresponding non-noble metal salts on a carbon support Black Pearl 2000, followed by a high-temperature annealing at 1000 °C. We first performed the powder X-ray diffraction (XRD) characterizations to...
The NiCuCr/C catalysts were synthesized by impregnation. Nickel nitrate, copper nitrate, and chromium nitrate were used as the metal sources, and Ketjen ECP600 carbon was selected as carbon support. Citric acid and urea were added to regulate the particle sizes. The final NiCuCr/C catalyst was...
The outcomes of the comprehensive electrochemical investigations are prophesied to direct the imminent development in designing noble metal free, efficient and low-priced electrocatalysts for oxygen evolution reaction.doi:10.1016/j.ica.2021.120510Shaista Ibrahim a b...
Thus Noob Factory 8f Rolex Replica Watches have a carpet of colored metal. Noob Rolex Datejust Golden Dial 36mm Steel & Yellow Gold – 126233Rolex Datejust Golden Palm Stahl / Gold Automatik Oyster Perpetual 126233 B&P The clock has different visual details. The Ultra-Hot Super Best Sear ...
Developing a highly efficient, easy-to-fabricate and non-noble metal electrocatalyst is vital for the oxygen reduction reaction (ORR). Herein, we fabricate a single Fe site catalyst Fe1/d-CN by developing a double-layer MOF strategy. The... M Zhao,H Liu,H Zhang,... - 《Energy & Enviro...
Herein, a two dimensional (2D) nanosheet ammonium cobalt phosphate hydrate (NH4CoPO4·H2O) catalyst based on the earth゛bundant non‐noble metal is reported. When used for the challenging alkaline saline water electrolysis, the NH4CoPO4·H2O catalyst with the optimal thickness of 30 nm achieves...
reaction (ORR) is important for the commercialization of fuel cells. We report the synthesis of a NPME by heat‐treating Co‐based metal organic frameworks (ZIF‐67) with a small average size of 44 nm. The electrocatalyst pyrolyzed at 600 °C showed the best performance and the performance ...
From our previous work [20], the facile flash nanoprecipitation (FNP) method was used to synthesize Mn-Ce-Al mixed metal oxide as SCR catalysts for de-NOx. Herein, we successfully synthesized 2D MgAl-LDO support with a high concentration of oxygen vacancies via the facile FNP method. The ...
In addition, a method of using N and metal to form coordination polymers was proposed to prepare a two‐dimensional (2D) honeycomb spin‐lattice, which provided a new idea for the preparation of polymer light‐...