Hydrogen boride (HB) sheets are metal-free two-dimensional materials comprising boron and hydrogen in a 1:1 stoichiometric ratio. In spite of the several advancements, the fundamental interactions between HB sheets and discrete molecules remain unclear. Here, we report the adsorption of CO and its conversion to CH and CH using hydrogen-deficient HB sheets. Although fresh HB sheets did not adsorb CO, hydrogen-deficient HB sheets reproducibly physisorbed CO at 297 K. The adsorption followed the Langmuir model with a saturation coverage of 2.4 × 10 mol g and a heat of adsorption of approximately 20 kJ mol, which was supported by density functional theory calculations. When heated in a CO atmosphere, hydrogen-deficient HB began reacting with CO at 423 K. The detection of CH and CH as CO reaction products in a moist atmosphere indicated that hydrogen-deficient HB promotes C-C coupling and CO conversion reactions. Our findings highlight the application potential of HB sheets as catalysts for CO conversion.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9814476 | PMC |
| http://dx.doi.org/10.1038/s42004-022-00739-8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
First-Principle Calculations on O-Doped Hexagonal Boron Nitride (H-BN) for Carbon Dioxide (CO) Reduction into C1 Products.
Molecules
December 2024
School of Information Technology, Jiangsu Open University, Nanjing 210017, China.
With the rapid growth of the world population and economy, the greenhouse effect caused by CO emissions is becoming more and more serious. To achieve the "two-carbon" goal as soon as possible, the carbon dioxide reduction reaction is one of the most promising strategies due to its economic and environmental friendliness. As an analog of graphene, monolayer h-BN is considered to be a potential catalyst.
View Article and Find Full Text PDFModifications and Applications of Metal-Organic-Framework-Based Materials for Photocatalysis.
Molecules
December 2024
MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, China.
Metal-organic frameworks (MOFs) represent a category of crystalline materials formed by the combination of metal ions or clusters with organic linkers, which have emerged as a prominent research focus in the field of photocatalysis. Owing to their distinctive characteristics, including structural diversity and configurations, significant porosity, and an extensive specific surface area, they provide a flexible foundation for various potential applications in photocatalysis. In recent years, researchers have tackled many issues in the MOF-based photocatalytic yield.
View Article and Find Full Text PDFInvestigation of the Photocatalytic Activity of Copper-Modified Commercial Titania (P25) in the Process of Carbon Dioxide Photoreduction.
Materials (Basel)
December 2024
Department of Inorganic Chemical Technology and Environment Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology in Szczecin, Pułaskiego 10, 70-322 Szczecin, Poland.
The photocatalytic reduction of CO to useful products is an area of active research because it shows a potential to be an efficient tool for mitigating climate change. This work investigated the modification of titania with copper(II) nitrate and its impact on improving the CO reduction efficiency in a gas-phase batch photoreactor under UV-Vis irradiation. The investigated photocatalysts were prepared by treating P25-copper(II) nitrate suspensions (with various Cu concentrations), alkalized with ammonia water, in a microwave-assisted solvothermal reactor.
View Article and Find Full Text PDFDSSCs Sensitized with Phenothiazine Derivatives Containing 1H-Tetrazole-5-acrylic Acid as an Anchoring Unit.
Materials (Basel)
December 2024
Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 34 M. Curie-Skłodowska Str., 41-819 Zabrze, Poland.
Phenothiazine-based photosensitizers bear the intrinsic potential to substitute various expensive organometallic dyes owing to the strong electron-donating nature of the former. If coupled with a strong acceptor unit and the length of N-alkyl chain is appropriately chosen, they can easily produce high efficiency levels in dye-sensitized solar cells. Here, three novel D-A dyes containing 1H-tetrazole-5-acrylic acid as an acceptor were synthesized by varying the N-alkyl chain length at its phenothiazine core and were exploited in dye-sensitized solar cells.
View Article and Find Full Text PDFOptimisation of activated carbon from fruit stones and shells derived via molten salt activation for dye removal.
Bioresour Technol
January 2025
Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Coupure Links 653, 9000 Gent, Belgium.
Recent advancements in activated carbon production involve molten salt activation using a eutectic mixture of ZnCl-NaCl-KCl. This study explores the production of activated carbon from fruit waste, specifically walnut shells, using a 60:20:20 mol % eutectic mixture. Optimal conditions were identified through response surface methodology, with 400 °C and a salt-to-biomass ratio of 10 g/g, yielding a surface area of 276 m/g.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!