Boron-doped nitrogen-deficient carbon
WebSep 9, 2024 · Recently, a boron-doped and nitrogen-deficient strategy was reported to adjust the band positions of C 3 N 4 nanosheets; Z-scheme carbon nitride-based heterostructures were fabricated with high solar-to-hydrogen efficiency (1.16% under one-sun illumination) for photocatalytic water splitting using Pt and Co(OH) 2 as H 2 and O 2 … WebApr 11, 2024 · To enhance the absorbility of carbon materials to polysulfides, heteroatom doping is demonstrated as an effective way . Wang’s group found that nitrogen doping can effectively enhance the adsorption of sulfur on oxygen functional groups in the N-doped carbon matrix, resulting in an improvement on electrochemical performance .
Boron-doped nitrogen-deficient carbon
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The optical properties and band structures of the ultrathin CNN and BDCNN were determined by ultraviolet-visible diffuse reflectance spectra (DRS), X-ray photoelectron spectroscopy (XPS) and UV photoelectron spectroscopy (UPS). As shown in Fig. 2a, BDCNN exhibit a redshift in the optical … See more The CNN/BDCNN 2D/2D Z-scheme heterostructure was fabricated through a facile electrostatic self-assembly approach, as illustrated in Fig. 3a,b. Zeta potential … See more The photocatalytic overall water-splitting experiment was performed in pure water containing no sacrificial reagents under simulated solar … See more All the above results demonstrate that, by coupling a pair of ultrathin g-C3N4 nanosheets (that is, CNN and BDCNN) as the H2- and O2-evolving catalysts, respectively, through … See more With a comprehensive consideration of the band structures (Figs. 2d and 3f) and the achieved overall water-splitting capability (Fig. 4), a direct Z … See more WebIn this study, a one-pot, low-temperature synthesis method is considered for the fabrication of heteroatom dope multiwall carbon nanotubes (MWCNT). Doped MWCNT is utilized as an effective electrocatalyst for oxygen reduction reaction (ORR). Single, double, and triple doping of boron, nitrogen and sulfur elements are utilized as the dopants. A reflux …
WebJan 15, 2009 · The composition and texture of the samples were studied by XPS (Fig. 2).The results show that the carbon materials were doped with both boron and … WebBoron-doped nitrogen-deficient carbon nitride-based Z-scheme heterostructures for photocatalytic overall water splitting. Nat. Energy. 2024; 6: 388-397. ... Selectively nitrogen-doped carbon materials as superior metal-free catalysts for oxygen reduction. Nat. Commun. 2024; 9: 3376-3386. Crossref; PubMed; Scopus (268)
WebHere we report a facile strategy for the synthesis of boron (B) and nitrogen (N) co-doped carbon nanosheets (BNC) by using biomolecule guanine as a carbon (C) and N source and boric acid as the B precursor. The whole synthesis process which leads to the formation of a two dimensional (2D) structure and mesoporosity with high surface areas is ... WebNanoporous carbons remain the most promising candidates for effective hydrogen storage by physisorption in currently foreseen hydrogen-based scenarios of the world’s energy future. An optimal sorbent meeting the current technological requirement has not been developed yet. Here we first review the storage limitations of currently available …
WebNov 23, 2024 · TiO2 is a promising photocatalyst due to its high thermodynamic stability and non-toxicity. However, its applications have been still limited because of the high recombination rate of electron—hole pairs. Herein, we show that by combining heterojunction construction and electronic structure regulation, the electron—hole pairs …
Web2 days ago · n C, n H, and n B are number of carbon, hydrogen, and boron atoms respectively in B-doped AGNRs. Adsorption energy ( E a d s ) is calculated by using the formula [8] (2) E a d s = ( E t o t - E s u b - E a l k a l i ) where E t o t is total energy of pristine/B-doped AGNR with adsorbed alkali atom (Li/Na), E s u b is total energy of … crn solariWebGraphitic carbon nitride (g-C3N4) behaving as a layered feature with graphite was indexed as a high-content nitrogen-doping carbon material, attracting increasing attention for application in energy storage devices. However, poor conductivity and resulting serious irreversible capacity loss were pronounced for g-C3N4 material due to its high nitrogen … crnr giWebAug 30, 2024 · In this study, a two-dimensional graphitic carbon nitride nanosheets/BiFeO3 (GCNNs/BiFeO3) Z-scheme heterojunction has been synthesized through the electrostatic spinning and post-calcination The... crn servizi sanitariWebOct 27, 2024 · Boron-doped nitrogen-deficient carbon nitride-based Z-scheme heterostructures for photocatalytic overall water splitting. Daming Zhao, Yiqing Wang, +5 authors Liejin Guo; ... Nitrogen‐Doped Carbon‐Coated CuO‐In2O3 p–n Heterojunction for Remarkable Photocatalytic Hydrogen Evolution. Liming Sun, Y. Zhuang, +4 authors … mantan suami dina lorenzaWebJul 27, 2024 · A new photocatalytic reactivity of carbon-nanodot-doped graphitic carbon nitride (CD-C3N4) with alkenes and dienes, has been disclosed. We have shown that CD … mantan suami larissa chouWebApr 6, 2024 · The electrochemical CO 2 reduction reaction (CO 2 RR) powered by renewable electricity is a promising route to close the carbon cycle, but it suffers from … mantan suami abby choiWebOct 21, 2024 · As Zn 2+ ions tend to incorporate with edge nitrogen of carbon nitride via Lewis acid–base interactions, a series of crystalline hybrid poly heptazine imides (PHI), namely, Zn-PHI/PHI, integrated by van der Waals interactions, were generated as … manta oleofilica