Cerium-Organic Framework (CeOF) for hydrogen generation via the hydrolysis of NaBH4

Results in Chemistry, Journal Year: 2024, Volume and Issue: 7, P. 101412 - 101412

Published: Jan. 1, 2024

Hydrogen gas has been considered an eco-friendly energy source with a high content, making it suitable carrier for several industries. A cerium-organic framework, denoted as CeOF, was synthesized by reacting cerium tricarboxylic organic linker using solvothermal method. The material's characteristics were analyzed X-ray diffraction (XRD), transmission electron microscopy (TEM), photoelectron spectroscopy (XPS), scanning (SEM), thermogravimetric analysis (TGA), and Fourier transforms infrared (FT-IR) to confirm its crystallinity, phase purity, elemental composition, chemical bonding, morphology, thermal stability. CeOF catalysized the release of hydrogen from solid storage materials, e.g., sodium borohydride (NaBH4) reaction water via hydrolysis. An examination carried out analyze influence catalyst loading, NaBH4 weight (0.2–3 wt.%), temperature. showed significant generation rate (HGR) 1800 mLH2·gcat-1·min−1, activation 58.8 kJ·mol−1. It good catalytic recyclability enabling continuous production four cycles without any decrease in performance.

Language: Английский

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Poly(vinyl alcohol)/poly(ethylene glycol) ion-solvating membrane with NiFe-LDH for high-performance alkaline water electrolysis

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132769 - 132769

Published: March 1, 2025

Language: Английский

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Investigating the potential of ZrO2/MoO3 nanocomposites for efficient hydrogen generation through NaBH4 methanolysis

Ceramics International, Journal Year: 2024, Volume and Issue: 50(16), P. 28016 - 28024

Published: May 10, 2024

Language: Английский

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Strain effect of PtCu alloy aerogel nanocatalysts on the oxygen reduction reaction enhancement

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 580, P. 115121 - 115121

Published: April 16, 2025

Language: Английский

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Enhanced hydrogen generation in borohydride hydrolysis using an efficient and reusable IA-CNT supported Co-Mo-B catalyst

Diamond and Related Materials, Journal Year: 2025, Volume and Issue: unknown, P. 112364 - 112364

Published: April 1, 2025

Language: Английский

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Recent Advancement in Electrocatalytic Water Splitting Facilitated by the Sulfide Oxidation Reaction

ACS Applied Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 27, 2025

Language: Английский

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A One-Pot Approach for Synthesizing a Rod-Shaped Photocathode Composed of W(VI) Oxide/Polypyrrole for Sacrificial Agent-Free Green Hydrogen Production

Journal of Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

Language: Английский

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One-pot fabrication of open-spherical shapes based on the decoration of copper sulfide/poly-O-amino benzenethiol on copper oxide as a promising photocathode for hydrogen generation from the natural source of Red Sea water

Nanotechnology Reviews, Journal Year: 2024, Volume and Issue: 13(1)

Published: Jan. 1, 2024

Abstract Harnessing green hydrogen production from natural Red Sea water offers an innovative solution to address energy challenges. A one-pot fabrication method is used create novel nanocomposite thin films with open-spherical shapes, utilizing copper sulfide/poly- O -amino benzenethiol decorated on oxide as a promising photocathode. After thorough analysis, unique morphology characterized by open spherical shapes projected, which contributes improved optical absorption. The bandgap of the 1.17 eV, enabling efficient absorption light across entire spectrum, extending up 950 nm. Utilizing electrolyte, generated J ph serves indicator H 2 gas production. substantial value −0.82 mA cm −2 achieved at −0.85 V under illumination. Furthermore, values exhibit variability, starting −0.58 (at 730 nm) and increasing −0.75 wavelength 340 estimated rate reaches 1.5 µmole h −1 , translating impressive 15 for every 10 cm². This remarkable underscores effectiveness photocathode, especially given its through single-step process that suitable mass In addition, cost-effectiveness further enhances appeal viable renewable generation seawater.

Language: Английский

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The fabrication of a thin film CoO-poly(1H-pyrrole)/poly(1H-pyrrole) p-type photocathode with intercalated chloride ions inside the polymer chains for the green hydrogen generation without sacrificing agent

Physica Scripta, Journal Year: 2024, Volume and Issue: 99(10), P. 105015 - 105015

Published: Aug. 23, 2024

Abstract This study proposes an innovative solution to the challenges associated with hydrogen (H 2 ) gas generation by introducing a novel composite material composed of CoO-Co O 3 -P1HP/P1HP. is synthesized in single step through direct reaction Co(NO pyrrole. The resulting exhibits promising morphological characteristics, featuring small particle sizes approximately 150 nm and notable porosity. intricate porosity has great role facilitating penetration photons, enabling effective light absorption throughout material. Moreover, demonstrates exceptional optical properties, displaying high absorbance across spectrum up 830 nm, coupled optimal bandgap 1.35 eV. Utilizing this as photocathode fabricated three-electrode cell, explores conversion natural Red Sea water into H gas. selection electrolyte offers several advantages, including its cost-effectiveness, ready availability, self-sacrificing properties. Experimental testing involves subjecting it various conditions, varying photon energies frequencies. Under white light, J ph value −0.17 mA.cm −2 , surpassing Jo −0.03 . comprehensive evaluation provides insights performance under different illumination conditions. Furthermore, holds promise for commercial applications, presents pathway large-scale gas, production rate 10 μmole h −1 .10 cm availability clean sustainable energy source significant potential addressing needs residential remote areas, offering viable alternative conventional sources.

Language: Английский

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Electrospun Carbon Nanofibers Derived from Polyvinyl Alcohol Embedded with Bimetallic Nickle-Chromium Nanoparticles for Sodium Borohydride Dehydrogenation

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3541 - 3541

Published: Dec. 19, 2024

Bimetallic NiCr nanoparticles decorated on carbon nanofibers (NiCr@CNFs) were synthesized through electrospinning and investigated as catalysts for hydrogen generation from the dehydrogenation of sodium borohydride (SBH). Four distinct compositions prepared, with chromium content in ranging 5 to 25 weight percentage (wt%). Comprehensive characterization confirmed successful formation bimetallic NiCr@CNFs. Notably, among compositions, catalyst containing 20 wt% Cr exhibited highest efficiency SBH dehydrogenation. Kinetic studies revealed that production followed a first-order reaction respect quantity. Additionally, time decreased increasing temperature. The activation energy (Ea), entropy change (ΔS), enthalpy (ΔH) calculated 34.27 kJ mol−1, 93.28 J mol·K−1, 31.71 respectively. improved catalytic performance is attributed synergistic interaction between Ni Cr. This study proposes promising strategy advancement Ni-based catalysts.

Language: Английский

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