Study of the effect of urea concentration on optical properties of Boron Carbon Oxynitride (BCNO) nanophosphor

Kumar, Sunil; Rajawat, Shweta; Ojha, Pragya; Purohit, Rajesh; Malik, М. M.

doi:10.1016/j.ijleo.2021.166522

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…These signals indicate that the C and O atoms have been successfully integrated into the BN framework. The bending and stretching vibrations of N–H are represented by the peaks at 1620 and 3150 cm –1 . − The peaks at 1620 and 3150 cm –1 correspond to the bending and stretching vibrations of N–H. , It is evident that the samples with glucose addition exhibit a higher concentration of −NH 2 groups. The broad absorption band near 3400 cm –1 in all spectra can be attributed to hydroxyl or water groups …”

Section: Resultsmentioning

confidence: 99%

Pd Nanoparticles Anchored on Amine-Functionalized Boron Nitride Co-Doped with Carbon and Oxygen as Catalysts for Formic Acid Dehydrogenation

Gong,

Lin,

et al. 2024

ACS Appl. Nano Mater.

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Formic acid (FA) has garnered considerable interest as a sustainable energy source because of its high hydrogen storage capability and convenient transportability. However, efficient dehydrogenation of FA requires highly selective and efficient catalysts. This study explores the potential of C and O codoped boron nitride (BN C,O ) as a support for Pd nanoparticles in FA dehydrogenation. The BN C,O support has been synthesized through high-temperature pyrolysis and subsequently functionalized with −NH 2 groups to enhance the dispersion and anchoring of ultrafine Pd nanoparticles (∼2.1 nm). In comparison to the unmodified catalyst, the resulting Pd/BN C,O -A catalyst demonstrates a significant enhancement in catalytic activity for FA dehydrogenation, achieving an initial turnover frequency (TOF) of 522.0 h −1 at 298 K and 1560.9 h −1 at 338 K with nearly 100% hydrogen selectivity. Characterization techniques reveal that the incorporation of C and O heteroatoms and −NH 2 groups into the BN C,O support facilitates the formation of small and welldispersed Pd nanoparticles while also forming a strong metal−support interaction. The −NH 2 groups further promote FA dehydrogenation by acting as proton scavengers. This study highlights the promising potential of C and O co-doped, −NH 2 functionalized BN C,O as a support for Pd-based catalysts for efficient FA dehydrogenation.

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Section: Resultsmentioning

confidence: 99%

Pd Nanoparticles Anchored on Amine-Functionalized Boron Nitride Co-Doped with Carbon and Oxygen as Catalysts for Formic Acid Dehydrogenation

Gong,

Lin,

et al. 2024

ACS Appl. Nano Mater.

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“…The precursor materials for BCNO are also readily available. Moreover, the synthesis of BCNO is possible at low pressure and temperature, therefore, it is considered an environment-friendly and economical process [40]. This can be achieved using different methods, such as chemical vapor deposition or chemical synthesis [41].…”

Section: Introductionmentioning

confidence: 99%

Boron carbon oxynitride coated arc-shaped fiber as an optical modulator for passively mode-locked fiber lasers at 1.5 and 2 μm wavelength

Ahmad¹,

Nizamani²,

Sekar³

et al. 2023

Phys. Scr.

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Two-dimensional (2D) materials have recently been explored as a potential for saturable absorbers (SA) due to their remarkable optoelectronic and nonlinear optical properties. In this work, we have experimentally reported the 2D boron carbon oxynitride (BCNO) as a potential mode-locker in erbium-(EDFL) and thulium-doped fiber lasers (TDFL) for the first time. The BCNO-coated arc-shaped fiber was explored as a novel optical loss modulator and exhibited a modulation depth of 8.2 % and 5 % at 1.5 µm and 2 µm, respectively. The mode-locked laser was then achieved by using BCNO-coated arc-shaped fiber in EDFL having a pulse width, repetition rate, and center wavelength of 1.56 ps, 19.14 MHz, and 1562.2 nm, respectively. Mode-locked pulses of 1.456 ps duration were achieved by incorporating BCNO-coated arc-shaped fiber in TDFL, operated at center wavelength, repetition rate, and signal-to-noise ratio (SNR) of 1944 nm, 13 MHz, and 70.3 dB, respectively. These results prove BCNO to be a promising low-cost 2D material to be further explored for laser-related applications.

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Preparation of boron carbon oxynitride phosphor films with compositional and spectral tunability by chemical vapor deposition

Katsui

Harada²,

Liu³

et al. 2022

Ceramics International

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Study of the effect of urea concentration on optical properties of Boron Carbon Oxynitride (BCNO) nanophosphor

Cited by 3 publications

References 23 publications

Pd Nanoparticles Anchored on Amine-Functionalized Boron Nitride Co-Doped with Carbon and Oxygen as Catalysts for Formic Acid Dehydrogenation

Pd Nanoparticles Anchored on Amine-Functionalized Boron Nitride Co-Doped with Carbon and Oxygen as Catalysts for Formic Acid Dehydrogenation

Boron carbon oxynitride coated arc-shaped fiber as an optical modulator for passively mode-locked fiber lasers at 1.5 and 2 μm wavelength

Preparation of boron carbon oxynitride phosphor films with compositional and spectral tunability by chemical vapor deposition

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