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Carbon Cycle - Astrophysics Data System

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Last Updated: 03 January 2023

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Synchrotron-based X-ray absorption spectroscopy of Pd nanoparticles decorated on multi-walled carbon nanotubes during successive cycles of He/H2 exposure

The MWCNTs decorated with Pd NPs by various methods are decorated by Pd NPs by various methods of heating/cooling methods under He/H2 conditions. Pd K-edge X-ray absorption spectroscopy is carried out by heating/cooling processes under He/H2 exposure in order to investigate the hydrogen adsorption mechanism. The presence of the Pdu2013Pd and Pdu2013C bonds in the Fourier transform X-ray absorption fine structure simulation indicates the presence of the Pdu2013Pd and Pdu2013C bonds. In addition, the Pd/u2013Pd bond distance increases due to hydrogen bond adsorption for all samples, but, in the case of PLAL, the change in the bond distances becomes dominant.

Source link: https://ui.adsabs.harvard.edu/abs/2022PCCP...25..749R/abstract


Bi@C sandwiched carbon nanolayers enables remarkable cyclability at high current density for lithium-ion batteries

We're expertly created a unique sandwich structure made of bismuth nanoparticles coated with carbon nanolamella and carbon nanolayers by a simple pyrolysis process. In addition, the Bi@C embedded in the double carbon layer structure not only serve as highly conductive networks for Li +, but also provide a wide surface area for electrolyte penetration and storage, which will improve the charge transfer reaction kinetics process. The Bi@C/C NL-700 anode demonstrated a higher capacity, excellent long cycling stability, and improved rate stability, outperforming the most commonly reported Bi-based anode materials for lithium-ion batteries as a result.

Source link: https://ui.adsabs.harvard.edu/abs/2023ApSS..61355996L/abstract


Limited carbon cycling due to high-pressure effects on the deep-sea microbiome

Although it has been suggested that elevated pressures lead to increased community-level metabolic rates, this deep-sea microbial communities' response to the deep sea's high-pressure environment is unclear. We find that the bulk heterotrophic activity of prokaryotic communities becomes increasingly restricted under increasing hydrostatic pressure in the major oceanic basins using an in situ microbial incubator. The bulk heterotrophic prokaryotic reaction under in situ hydrostatic pressure was approximately one-third of that observed in the same region under atmospheric pressure conditions at 4,000 meters depth.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatGe..15.1041A/abstract


Carbon cycle perturbation and mercury anomalies in terrestrial Oceanic Anoxic Event 1b from Jiuquan Basin, NW China

In the Xiagou and Zhonggou formations of the Jiuquan Basin, NW China, we carried out high-resolution organic carbon isotope, total organic carbon content, and mercury concentration analysis. In the lowermost Zhonggou Formation, the lacustrine u03b4 13 C org curve shows three stages of negative excursions above the basalt layer dating to 112. 4 0. 3 Ma.

Source link: https://ui.adsabs.harvard.edu/abs/2022GSLSP.521..185Z/abstract


An intelligent life-cycle carbon emission measurement system for highway pavement construction

To integrate the project quantity quota and carbon emission factors of highway projects, a carbon emission database based on MySQL is developed. MATLAB's carbon measurement and analysis of highway projects is the most sophisticatedly implemented carbon emission measurement and analysis of highway projects. The case study shows that the carbon measurement device in this paper would accurately reflect the carbon emission data during the construction period and provide data to energy conservation and emissions reduction.

Source link: https://ui.adsabs.harvard.edu/abs/2022SPIE12340E..24W/abstract


Research on the knowledge graph based life cycle carbon footprint labeling representation model for electromechanical products

With the aim of carbon reduction and elimination in several countries, how to monitor and achieve carbon footprint quantification have been two key research projects in low carbon manufacturing electromechanical products, with the intention of carbon reduction and elimination. We recommend the development of a carbon footprint chart for electromechanical products in order to give users a greater insight into the carbon footprint of purchased and used electromechanical equipment using a hierarchical tree of electromechanical products in order to give them a greater understanding of the carbon footprint of purchased and used electromechanical products.

Source link: https://ui.adsabs.harvard.edu/abs/2022SPIE12451E..1OD/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions