Carbon Storage - Europe PMC

Portable mid-infrared spectroscopy to predict parameters related to carbon storage in vineyard soils: Model calibrations under varying geopedological conditions

To determine the parameters for soil organic carbon storage, portable mid-infrared spectroscopy coupled with machine learning was used. Support Vector Machines were used to calibrate forecast models for a sample set of ten vineyards with pronounced geopedological variation. For all tested parameters, the calibrated SVM models did well with Ru00b2 = 0. 81>u20130. 98 and RPIQ = 5. 20u201313. 0. The conversion of the complete dataset into SIC-free and SIC-containing samples resulted in improved estimates of SOC of the first sampling period. We conclude that pMIRS-SVM calibrations are suitable for the determination of soil C storage parameters under various geopedological conditions, and they may be useful for future C monitoring. Extending the database with additional samples from geopedological scenarios not included in this study can extend model stability and help to determine the effects of SIC content on model results.

Source link: https://europepmc.org/article/MED/IND607875316

Achieving Ultrahigh-Rate and Low-Temperature Sodium Storage of FePS 3 via In Situ Construction of Graphitized Porous N-Doped Carbon.

Sodium-ion batteries have become a common replacement for lithium-ion batteries. Unfortunately, traditional hard carbon's poor elasticity and poor low-temperature results resulted in limited energy density and a variety of applications of SIBs. We present high-performance SIBs embedded in graphitized porous N-doped carbon using coordination polymerization reaction herein. In addition, an ingenious buffer barrier made of graphitized pores is constructed for FePS 3 to withstand volume fluctuations during cycling. Consequently, a superior capacity of 354. 2 mAh g -1 is delivered even as the rate rises to 50 A g -1.

Source link: https://europepmc.org/article/MED/36070445

Regulating Oxygen Configuration in Hierarchically Porous Carbon Nanosheets for High-Rate and Durable Na+ Storage.

Surface oxygen functionalities in carbon materials have negligible influence on their electrical conductivity and Na+ storage performance, as shown by negative effects on carbon materials' electrical conductivity and Na+ storage performance. We've introduced a scheme from surface chemistry to control the oxygen configuration in hierarchically porous carbon nanosheets. The C-O/C=O ratio in HPCNS has decreased from 1. 49 to 0. 43, while its graphitization degree has increased as a result of rising the carbonization temperature in a reduced atmosphere, according to a study.

Source link: https://europepmc.org/article/MED/36048512

Amylopectin-Assisted Fabrication of In Situ Carbon-Coated Na 3 V 2 (PO 4 ) 2 F 3 Nanosheets for Ultra-Fast Sodium Storage.

Na 3 V 2 F 3 is one of the most widely tested polyanion type cathode materials for sodium-ion batteries and has received high hopes. We develop an effective way to produce in situ carbon-coated Na 3 V 2 F 3 nanosheets by using cost-effective amylopectin. The amylopectin can not only lead to the nucleation of Na 3 V 2 F 3 along its backbone but also act as a source of amorphous carbon for in situ coating on the active material surface.

Source link: https://europepmc.org/article/MED/36044541

Changes in carbon allocation and subplastidal amyloplast structures of specialised Ipomoea batatas (sweet potato) storage root phenotypes.

Vitamin A deficiency in Low and Medium Income countries remains a significant health issue. Orange sweet potato Ipomoea batatas, one of the World Health Organisation's biofortification techniques to combat VAD, is the Ipomoea batatas, orange sweet potato. Hence, five distinct sweet potato storage root phenotypes were characterized by spatial metabolomics and proteomics at the sub-plastidal level. The metabolite results indicated an indirect association of starch and carotenoids along the TCA cycle and pentose phosphate pathway, according to the metabolite study. This compares to previous gene expression studies by biochemical analysis of sweet potato root tissue.

Source link: https://europepmc.org/article/MED/36049525

Ultrathin Carbon-Coated Porous TiNb2O7 Nanosheets as Anode Materials for Enhanced Lithium Storage.

TiNb2O7 has been regarded as a promising anode material for next-generation lithium ion batteries thanks to its relatively high theoretical capacity, excellent safety, and long-life. Morphology control and carbon coating are two common techniques for improving electrode material's electrochemical stability. Nanolayer carbon can enhance electronic conductivity and increase the porous TiNb2O7 nanosheets' specific surface area. TiNb2O7@C is a promising anode material for lithium ion batteries, as these results show that TiNb2O7@C is a promising anode material for lithium ion batteries.

Source link: https://europepmc.org/article/MED/36079980

Northeast China holds huge wetland soil organic carbon storage: an estimation from 819 soil profiles and random forest algorithm

In the study area, the average wetland SOC density was 43. 30 x 0. 73 kg C m u2212 2, which decreased gradually from north to south. Conclusion The wetland SOC storage in the Greater Khingan Mountains Region was 2461. 87 Tg C, but in the Liao River Plain, it was only 26. 33 Tg C. Wetland SOC storage at 2461. 87 Tg C, avoiding the geographical location-based reliance of traditional interpolation methods. Our findings explored the connection between wetland SOC and environmental causes, which improves the understanding of climate change's responses.

Source link: https://europepmc.org/article/PPR/PPR535392

Phase Separation Induced Binary Core-Shell Alloy Nanoparticles Embedded in Carbon Sheets for Magnesium Storage.

Consequently, creating novel Mg 2+ host anodes remains a daunting challenge. We provide a clear blueprint and manufacture of bi-Sn alloy nanoparticles embedded in carbon sheets as a superb anode for MIBs manufacturing phase separation during the annealing of bimetallic MOFs. -1 at 500 mA g -1 with good cycling stability, resulting from the above benefits, the Bi@Sn-C electrodes provide excellent cycling durability of 214 mA g -1 at 100 mA g -1. -1.

Source link: https://europepmc.org/article/MED/36000722

Nitrogen and water availability control plant carbon storage with warming.

However, how climate warming affects plant C storage worldwide and key players in climate prediction remain unclear, contributing to uncertainty in climate predictions. Increasing-induced changes in total, aboveground, and belowground biomass, as a measure of soil N availability, were positively correlated with soil C:N ratio, an indicator of soil N availability across the entire dataset. These findings show dual controls of warming impacts on plant C storage storage; rising increases plant growth in ecosystems where N is restricting plant growth; but it minimizes plant growth when water availability is restricted; these results together.

Source link: https://europepmc.org/article/MED/36007637

A global assessment of the mixed layer in coastal sediments and implications for carbon storage.

Here we map the global distribution of the coastal SML based on excess 210 Pb profiles and then refine these results using a neural network model. Organic carbon preservation and SMLs are inversely related as mixing promotes oxidation in sediments, which promotes organic matter decomposition. Lower organic carbon accumulation rates and total organic carbon/specific surface area ratios are typical for sites with SML thickness > 60 cm.

Source link: https://europepmc.org/article/MED/35987905

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