To evaluate the stability of single-atom Fe sites on carbon supports, we calculated the binding energy (Ebind) of single-atom Fe sites (Fig. 1c). For the perfect Fe-N4 configuration, the binding energy of the single-atom Fe site is –1.01 eV, indicating that the configuration of th...
spectra of Cu K-edge in 2D-Cu–N–C, 2D-FeCu–N–C, and FePc@2D-Cu–N–C display a main peak at ~1.5 Å (not corrected for phase shift) due to the Cu–N coordination (Fig.3c). All wavelet transform (WT) contour plots at the Fe/Cu K-edge of 2D-FeCu–N–C, and F...
Herein, we constructed FeN4 structures on a carbon nanotube (CNT) to obtain single-atom catalysts (FeSA-N-CNT) to generate RFeS in the presence of peroxymonosulfate (PMS). The obtained FeSA-N-CNT/PMS system exhibited outstanding and selective reactivity for oxidizing EOCs over a wide pH ...
As an alternative energy, hydrogen can be converted into electrical energy via direct electrochemical conversion in fuel cells. One important drawback of full cells is the sluggish oxygen reduction reaction (ORR) promoted by the high-loading of platinum-group-metal (PGM) electrocatalysts. Fe-N-C ...
atom catalysts,extensive density functional theory calculations were carried out on the activities and catalytic mechanisms of SACs with the 3d,4d,and 5d metals of group VⅧ to IB,i.e.,M1/FeOx (M =Fe,Co,Ni,Cu;Ru,Rh,Pd,Ag;Os,Ir,Pt,Au) for CO oxidation.Remarkably,a new noble metal ...
Single-atom catalysts offer maximal atom utilization efficiencies and high-electronegativity heteroatoms play a crucial role in coordinating reactive single metal atoms to prevent agglomeration. However, these strong coordination bonds withdraw electron density for coordinated metal atoms and consequently affect...
The single-atom Pt1/FeOx catalyst (denoted as sample A, with a Pt/Fe atomic ratio of 1/1430 and a Pt loading of 0.17 State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, 2 Department of Chemistry, Tsinghua University, ...
Herein, a single-Fe-atom was introduced into the BiOCl catalyst by a f... F Tian,T Tang,Di XixiGuo XiaoshaLiu DongShi YixuanShen ZhengYu XiaohuShao Xianzhao - 《Catalysis Science & Technology》 被引量: 0发表: 2024年 Cooperative dual single atom Ni/Cu catalyst for highly selective CO2-...
Single-atom metal-nitrogen-carbon (M-N-C) catalysts have sparked intensive interests, however, the development of an atomically dispersed metal-phosphorus-carbon (M-P-C) catalyst has not been achieved, although molecular metal-phosphine complexes have fo
confirms the Fe–N–C coordination environment. Considering the angstrom resolution of the electron probe, the signals in EELS point spectrum comes from the Fe atom and its closest neighboring atoms47,48, suggesting a high possibility of Fe–N direct coordination in Fe SAC. Other point spectra ...