Carbon Storage - Europe PMC

Revealing the Self-Doping Defects in Carbon Materials for the Compact Capacitive Energy Storage of Zn-Ion Capacitors.

Zn-ion capacitors are gaining huge attention due to the availability of high-quality and relatively stable Zn anodes, but they are being hampered by poor capacity of porous carbon cathodes with insufficient energy storage locations. The self-doping defects of carbon, as the models, reveal a capacitive energy storage behavior with robust charge transfer kinetics, with ca. The defect engineering scheme may open a new avenue to increase the capacitive results of dense carbons for Zn-ion capacitors.

Source link: https://europepmc.org/article/MED/36601866

Integrated structure design and synthesis of a pitaya-like SnO 2 /N-doped carbon composite for high-rate lithium storage capability.

Tin dioxide with a maximum theoretical capacity of 1494 mA h g -1 has a great ability to crack through the capacity limitations of the common graphite anode in lithium-ion batteries. We display an integrated layout of a hierarchical pitaya-like P-SnO 2 nanoparticle core and the shell of a continuous nitrogen-doped carbon layer in this region. The resultant battery has a reversible capacity of 936. 8 mA h g -1 after 100 cycles at 100 mA g -1 and even a mediocre density of 460. 0 g -1 at a high current density of 3. 2 A g -1. The excellent electrochemical results of pitaya-like SnO 2 /C@NC demonstrates the correctness of this system's layout and provides important information for the production of other electrode materials in rechargeable alkali metal ion batteries.

Source link: https://europepmc.org/article/MED/36598754

Scheduling optimization of wind-thermal interconnected low-carbon power system integrated with hydrogen storage

This paper aims to increase wind energy consumption and minimize carbon dioxide emissions by reducing carbon dioxide, as this paper develops a wind-thermal interconnected low-carbon power system with hydrogen storage. The horizontal comparison results show that hydrogen production and the hydrogen fuel cell technology have higher operational expenditures than those of the wind-thermal interconnected power system only, although the environmental cost is reduced. With CCS, the wind curtailment rate decreases from 11. 0% to 3. 8 percent, and in 9. 0% to 2. 1% with CCS. The thermal power output is reduced, and CCS's wind power consumption is increased with CCS, according to a longitudinal analysis. However, the use of CCS in the wind-thermal interconnected power system can effectively increase wind energy use and reduce the system operation cost, but, at present, the utilization of CCS is still unfriendly.

Source link: https://europepmc.org/article/PPR/PPR591013

Novel Preoxidation-Assisted Mechanism to Preciously Form and Disperse Bi 2 O 3 Nanodots in Carbon Nanofibers for Ultralong-Life and High-Rate Sodium Storage.

Herein, we present for the first time a preoxidation-assisted method to prepare bismuth oxide and carbon nanofibers by electrospinning by electrospinning using Bi 2 S 3 nanorods as multifunctional templates. With the continuous diffusion of Bi generated from Bi 2 S 3 nanorods and conversion to Bi0500O bonds breaking Cu2550O bonds, the uniformly distributed Bi 2 O 3 nanodots and longitudinal tunnels are established within the S- and N-doped carbon nanofibers.

Source link: https://europepmc.org/article/MED/36591955

Ni 3 S 2 -Ni Hybrid Nanospheres with Intra-Core Void Structure Encapsulated in N-Doped Carbon Shells for Efficient and Stable K-ion Storage.

A unique Ni 3 S 2 -Ni hybrid nanosphere with intra-core voids encapsulated by N-doped carbon shells is created herein, based on the first electrodeposited NiS nanosphere particles, dopamine coating outer layer, oxygen-free annealing coating to produce Ni 3 S 2 -Ni core and N-doped carbon shell, and selective etching of the Ni phase to create an intra-core void. Consequently, the Ni 3 S 2 –Ni@NC-AE exhibits strong specific capacity, outstanding rate results, and an extremely stable long-cycle for K-ion storage.

Source link: https://europepmc.org/article/MED/36587976

One-Step Engineering Carbon Supported Magnetite Nanoparticles Composite in a Submicron Pomegranate Configuration for Superior Lithium-Ion Storage.

Magnetite nanoparticles that are easily dispersed by a submicron-sized carbon framework in a pomegranate shape are engineered in this work by a versatile one-step spray pyrolysis scheme. The homogeneously mixed Fe 3+ ions and chitosan molecules are converted to Fe 3 O 4 nanoparticles and spherical nitrogen-doped carbon coating domains, respectively, under inert gas atmosphere. In addition, the manufactured Fe 3 O 4 @C composite shows a unique submicron-sized pomegranate design, in which beneficial electric/ionic pathways have been built and the Fe 3 O 4 nanoparticles have been practically dispersed, according to a plethorate layout.

Source link: https://europepmc.org/article/MED/36614658

Metal-organic framework derived bimetallic selenide embedded in nitrogen-doped carbon hierarchical nanosphere for highly reversible sodium-ion storage.

Herein, a quick and controllable tactic utilizing a binary Ni-Co metal-organic framework precursors and the selenization process, which resulted in a cobalt nickel selenide/N-doped carbon composite with the hierarchical nanospheres' structure. b g -1 at 0. 2 A/g over 100 cycles, a robust cycle life with no apparent capacity loss at 1. 0 and 3. 0 A/g after 500 cycles, and a remarkable rate capability of 322. 9 mA h g -1 at 10. 0 A/g show the resulting nanospheres-like Se 2 / NC hierarchical framework shows a high specific capacity of 526. 8 mA h g -1 at 10. 0 A/g.

Source link: https://europepmc.org/article/MED/36599236

The role of groundwater in CO 2 production and carbon storage in Mediterranean peatlands: An isotope geochemistry approach.

Field measurements, major ions, dissolved organic and inorganic carbon content, and associated u03b4 13 C values enable for determining the seasonality of hydrochemical reactions and carbon input from an alluvial aquifer to the peatland. The entire dataset is completed by peat soil and organic matter content, as well as CO 2 values, making it possible to present arguments in favor of lower organic matter oxidation relative to primary production. This report, among other things, highlights the groundwater role in CO 2 fluxes at the peatland-atmosphere interface, as well as the need to recognize the relationships between the water and carbon cycles in order to produce better models of future climate change.

Source link: https://europepmc.org/article/MED/36587657

Carbon Isotope Fractionation Characteristics of Normally Pressured Shale Gas from the Southeastern Margin of the Sichuan Basin; Insights into Shale Gas Storage Mechanisms

Samples from various sources were collected in order to determine the shale gas enrichment process and favorable shale gas regions, with the formation pressure coefficient ranging from 0. 98 to 1. 35. The Wufeng|Longmaxi shale gas from the basin scale's thermal maturity was mainly controlled by thermal maturity; as the thermal maturity increased, heavier carbon isotopes were discovered, in comparison to drier shale gas, largely due to drier shale gas. The carbon isotope characteristics of normally shale gas, as well as the shale samples' physical characteristics, such as mineral composition, organic abundance, organic pore formation, and gas content, have a higher yield, indicating more suitable sweet spot evaluations for shale gas in the study areas.

Source link: https://europepmc.org/article/MED/PMC9823672

Carbon Isotope Fractionation Characteristics of Normally Pressured Shale Gas from the Southeastern Margin of the Sichuan Basin; Insights into Shale Gas Storage Mechanisms.

Since the formation of shale gas in the Wufeng-Longmaxi Formation in the Sichuan Basin, China's shale gas production and reserves have increased quickly. Shale gas samples from various sources were obtained in order to determine the shale gas enrichment process and favorable shale gas regions, with the formation pressure coefficient ranging from 0. 98 to 1. 35. The carbon isotope characteristics of conventionally pressured shale gas display a higher quality, relative to the shale samples' geological characteristics, such as mineral composition, organic abundance, organic pore dispersion, and gas content, indicating good sweet spot evaluations for shale gas in the study areas.

Source link: https://europepmc.org/article/MED/36616053

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