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1. Constraining estimates of terrestrial carbon uptake: new opportunities using long‐term satellite observations and data assimilation

Author:
Smith, William K.; Fox, Andrew M.; MacBean, Natasha; Moore, David J. P.; Parazoo, Nicholas C.
Source:
Thenew phytologist 2020 v.225 no.1 pp. 105-112
ISSN:
0028-646X
Subject:
carbon; carbon cycle; carbon dioxide,   etc   ; data collection; models; satellites; uncertainty;     Show all 7 Subjects
Abstract:
... SUMMARY: The response of terrestrial carbon uptake to increasing atmospheric [CO₂], that is the CO₂ fertilization effect (CFE), remains a key area of uncertainty in carbon cycle science. Here we provide a perspective on how satellite observations could be better used to understand and constrain CFE. We then highlight data assimilation (DA) as an effective way to reconcile different satellite datas ...
DOI:
10.1111/nph.16055

2. Nitrogen-doped carbon nanofibers with sulfur heteroatoms for improving microwave absorption

Author:
Jiang, Yuliang; Fu, Xueyan; Tian, Rui; Zhang, Wenjin; Du, Hongyan; Fu, Chengrui; Zhang, Zidong; Xie, Peitao; Xin, Jiahao; Fan, Runhua
Source:
Journal of materials science 2020 v.55 no.14 pp. 5832-5842
ISSN:
0022-2461
Subject:
carbon; carbon nanofibers,   etc   ; heat treatment; sulfur;     Show all 4 Subjects
Abstract:
... It is greatly meaningful but remains very challenging to obtain high-performance microwave absorber with thin thickness, lightweight, wide bandwidth, and strong absorption. Here, sulfur-enriched nitrogen-doped carbon nanofibers (S-NCFs) with excellent microwave absorption performance have been constructed through electrospinning technology and heat treatment with sublimed sulfur. Experimental resu ...
DOI:
10.1007/s10853-020-04430-y

3. Superlubricity of carbon nanostructures

Author:
Chen, Xinchun; Li, Jinjin
Source:
Carbon 2020 v.158 pp. 1-23
ISSN:
0008-6223
Subject:
carbon; carbon nanotubes,   etc   ; energy; friction; lubrication;     Show all 5 Subjects
Abstract:
... Superlubricity, a fantastic lubrication sate where friction or resistance to sliding nearly vanishes, has become one of the most important approaches to combat friction-induced energy consumption and devices failures. Emerging carbon nanostructures endow the research community with unprecedented opportunities to realize superlubricity across different length scales. This review provides an overvie ...
DOI:
10.1016/j.carbon.2019.11.077

4. Use of Carbon Materials of Different Nature in Determining Metal Concentrations in Carbon Nanotubes by X-Ray Fluorescence Spectrometry

Author:
Zhdanov, A. A.; Kazakova, M. A.
Source:
Journal of analytical chemistry 2020 v.75 no.3 pp. 312-319
ISSN:
1061-9348
Subject:
activated carbon; carbon nanotubes,   etc   ; catalysts; cellulose; soot;     Show all 5 Subjects
Abstract:
... A possibility of studying carbon nanotubes by X-ray fluorescence spectrometry using reference samples prepared from carbon materials more accessible than purified carbon nanotubes (carbon black, Sibunit, and activated carbon) is considered. The optimal state of the sample for analysis (powder or tablet with an inert filler) is determined. Most batches of purified carbon nanotubes (CNTs) contain si ...
DOI:
10.1134/S106193482003017X

5. Response to ‘Carbon emission flow from self-driving tours and its spatial relationship with scenic spots—A traffic-related big data method’

Author:
Yunhong, Hu; York, Yan Qi
Source:
Journal of cleaner production 2020 v.247 pp. 119540
ISSN:
0959-6526
Subject:
carbon; carbon footprint,   etc   ; emissions; models; service industry;     Show all 5 Subjects
Abstract:
... This letter is a response to the article in this journal by Huang et al. (2016), which examined the carbon emission flow from self-driving tours and how it is spatially related with scenic spots. Huang et al. used spatial distribution and flow models and a carbon coefficient taken from the existing literature to investigate the extent and intensity of carbon emissions of self-driving tours in a Ch ...
DOI:
10.1016/j.jclepro.2019.119540

6. Characterization of local capillary trap clusters in storage aquifers

Author:
Ren, Bo; Trevisan, Luca
Source:
Energy 2020 v.193 pp. 116795
ISSN:
0360-5442
Subject:
carbon dioxide; carbon sequestration,   etc   ; aquifers; models;     Show all 4 Subjects
Abstract:
... Local capillary trapping occurs when buoyant CO₂ moves upward in a saline aquifer during geologic carbon sequestration. The volumetric capacity of local capillary traps (LCTs) is controlled by reservoir geological heterogeneity. These traps are thus intrinsic to heterogeneous storage aquifers; their volumetric capacities are however largely unknown. To address this issue, this work employs an easi ...
DOI:
10.1016/j.energy.2019.116795

7. Correction to: Potential CO2 intrusion in near-surface environments: a review of current research approaches to geochemical processes

Author:
Derakhshan-Nejad, Zahra; Sun, Jing; Yun, Seong-Taek; Lee, Giehyeon
Source:
Environmental geochemistry and health 2020 v.42 no.2 pp. 711
ISSN:
0269-4042
Subject:
carbon dioxide; carbon sequestration,   etc   ; environmental health;     Show all 3 Subject
Abstract:
... In the original publication of the article, the third author name has been misspelt. The correct name is given in this correction. The original version of this article was revised. ...
DOI:
10.1007/s10653-019-00325-3

8. Internal three-dimensional strain evolution of the failure process for short carbon fiber composite through in situ synchrotron radiation X-ray computed tomography

Author:
Liu, Bin; Hu, Xiaofang; Li, Yongcun; Xiao, Tiqiao; Xu, Feng
Source:
Carbon 2020 v.157 pp. 506-514
ISSN:
0008-6223
Subject:
carbon; carbon fibers,   etc   ; computed tomography; epoxides; microstructure;     Show all 5 Subjects
Abstract:
... Research on internal three-dimensional (3D) strain evolution of a failure process was conducted on a short carbon fiber-reinforced composite through high-resolution (0.33 μm/pixel) in situ synchrotron radiation X-ray computed tomography. Material microstructure and strain value were analyzed simultaneously in 3D for the first time. The distribution of strain fields is nonuniform under load sequenc ...
DOI:
10.1016/j.carbon.2019.10.026

9. A study of CNT fiber-reinforced multi-carbon resource-coated SiOx composite as anode materials

Author:
Li, Wenchao; Tang, Renheng; Yuan, Bin; Wang, Ying; Sun, Tai
Source:
Journal of materials science 2020 v.55 no.14 pp. 6005-6016
ISSN:
0022-2461
Subject:
carbon,   etc   ; anodes; electrolytes; pyrolysis;     Show all 4 Subjects
Abstract:
... To enhance the cycling and rate performances of SiO as an anode material, a CNT fiber-reinforced multi-carbon resource-coated SiOₓ composite (SiOₓ@MC/CNTs) prepared via a two-step pyrolysis process is evaluated. The SiOₓ@MC/CNTs composite exhibits a high initial coulombic efficiency of 74.6%, an initial charge capacity of 1400.5 mAh/g, and an initial discharge capacity of 1878.6 mAh/g. After 250 c ...
DOI:
10.1007/s10853-020-04421-z

10. A facile method to decompose CO2 using a g-C3N4-assisted DBD plasma reactor

Author:
Ray, Debjyoti; Chawdhury, Piu; Subrahmanyam, Ch.
Source:
Environmental research 2020 v.183 pp. 109286
ISSN:
0013-9351
Subject:
carbon; carbon dioxide; carbon monoxide,   etc   ; adsorption; carbon nitride; catalysts; energy efficiency; titanium dioxide; zinc oxide;     Show all 9 Subjects
Abstract:
... The present study accomplishes the partial reduction of CO₂ to carbon monoxide in a dielectric barrier discharge (DBD) reactor packed with g-C₃N₄ and TiO₂ or ZnO mixed with g-C₃N₄. Typical results indicate that the ZnO + g-C₃N₄ packed reactor provides ~12% CO₂ conversion at SIE of 4.8 J/mL, whereas DBD yields only ~7.5% conversion under the same experimental conditions. The best performance of the ...
DOI:
10.1016/j.envres.2020.109286

11. Evaluating airline efficiency under “Carbon Neutral Growth from 2020” strategy through a Network Interval Slack-Based Measure

Author:
Cui, Qiang; Lin, Jing-ling; Jin, Zi-yin
Source:
Energy 2020 v.193 pp. 116734
ISSN:
0360-5442
Subject:
carbon,   etc   ; models; sales;     Show all 3 Subjects
Abstract:
... In this paper, we evaluate the efficiency of 24 global airlines with interval data from 2018 to 2022, as well as the impact of “Carbon Neutral Growth from 2020” strategy (CNG2020 strategy) on the interval efficiency of airlines during 2021–2022. We propose a Network Interval Slack-Based Measure model to discuss the difference in the interval efficiency of the airlines when CNG2020 strategy is cons ...
DOI:
10.1016/j.energy.2019.116734

12. Envisioned role of slit bypass pores in physical aging of carbon molecular sieve membranes

Author:
Hays, Samuel S.; Sanyal, Oishi; León, Nicholas E.; Arab, Pezhman; Koros, William J.
Source:
Carbon 2020 v.157 pp. 385-394
ISSN:
0008-6223
Subject:
carbon,   etc   ; diffusivity; sieving;     Show all 3 Subjects
Abstract:
... Carbon molecular sieve (CMS) hollow fibers are a special class of rigid, molecular sieving membranes with unique scalability and excellent separation properties for challenging gas-pairs. These high-performing membranes are subject to moderate productivity losses and selectivity gains over time via a phenomenon typically referred to as physical aging. This article considers the role of slit bypass ...
DOI:
10.1016/j.carbon.2019.10.036

13. Carbon-Coating Layers on Boron Generated High Critical Current Density in MgB₂ Superconductor

Author:
Liu, Haobo; Li, Jiancheng; Sun, Mingjie; Qu, Jiangtao; Zheng, Rongkun; Cairney, Julie M.; Zhu, Mingyuan; Li, Ying; Li, Wenxian
Source:
ACS applied materials & interfaces 2020 v.12 no.7 pp. 8563-8572
ISSN:
1944-8252
Subject:
carbon,   etc   ; boron; microstructure; superconductivity;     Show all 4 Subjects
Abstract:
... Boron particles with a homogeneous carbon-coating layer were employed as the precursor to fabricate MgB₂ superconductors to generate artificial two-dimensional (2D) flux-pinning centers. Systematic microstructure investigation reveals that the carbon layers are well-distributed in the MgB₂ matrix without agglomeration. The thickness of the carbon layers is smaller than the MgB₂ coherent length, wh ...
DOI:
10.1021/acsami.9b20673

14. Effects of capillary pressures on two-phase flow of immiscible carbon dioxide enhanced oil recovery in fractured media

Author:
Wang, H.D.; Chen, Y.; Ma, G.W.
Source:
Energy 2020 v.190 pp. 116445
ISSN:
0360-5442
Subject:
carbon dioxide,   etc   ; models; oils;     Show all 3 Subjects
Abstract:
... CO2-EOR in a geological formation not only increases oil production but also ensures geological sequestration of CO2. The capillary pressure is an essential factor during the process of immiscible CO2-EOR in fractured media. Two classical capillary pressure models are adopted to investigate the effects systematically based on a unified pipe-network method. The identical capillary pressures in frac ...
DOI:
10.1016/j.energy.2019.116445

15. Oceanic organic carbon as a possible first-order control on the carbon cycle during the Bathonian–Callovian

Author:
Silva, Ricardo L.; Duarte, Luís V.; Wach, Grant D.; Morrison, Natasha; Campbell, Taylor
Source:
Global and planetary change 2020 v.184 pp. 103058
ISSN:
0921-8181
Subject:
carbon cycle; carbon dioxide; dissolved inorganic carbon,   etc   ; Callovian age; inorganic carbon; oceans; organic carbon; sediments; stable isotopes;     Show all 9 Subjects
Abstract:
... Oceans are the largest, readily exchangeable, superficial carbon reservoir; a current challenge in investigating past and present environments and predict future evolution relates to the role of oceanic carbon in regulating Earths' carbon cycle and climate.At least one paired δ13Ccarb-TOC decoupling event is noted in the Late Bathonian–Early Callovian. Provokingly, we suggest that this decoupling ...
DOI:
10.1016/j.gloplacha.2019.103058

16. Inter‐annual simulation of global carbon cycle variations in a terrestrial–aquatic continuum

Author:
Nakayama, Tadanobu
Source:
Hydrological processes 2020 v.34 no.3 pp. 662-678
ISSN:
0885-6087
Subject:
carbon cycle; carbon sinks; dissolved organic carbon,   etc   ; ecosystems; global carbon budget; hydrologic cycle; inland waters; models; oceans; particulate organic carbon; soil organic carbon; temperature; uncertainty; watersheds; weather;     Show all 15 Subjects
Abstract:
... The advanced process‐based model, National Integrated Catchment‐based Eco‐hydrology (NICE)‐BGC, which incorporates the whole process of carbon cycling in land, was modified to include the feedback between soil organic content and overland carbon fluxes. It is a crucial and difficult task to evaluate the balance of the terrestrial carbon budget including the effect of inland water robustly. To acco ...
DOI:
10.1002/hyp.13616

17. High toughness carbon-nanotube-reinforced ceramics via ion-beam engineering of interfaces

Author:
Athanasiou, Christos E.; Zhang, Hongliang; Ramirez, Cristina; Xi, Jianqi; Baba, Tomonori; Wang, Xing; Zhang, Wei; Padture, Nitin P.; Szlufarska, Izabela; Sheldon, Brian W.
Source:
Carbon 2020 v.163 pp. 169-177
ISSN:
0008-6223
Subject:
carbon; carbon nanotubes,   etc   ; ceramics; ions; molecular dynamics; nanocomposites;     Show all 6 Subjects
Abstract:
... In nanocomposites, improved mechanical performance is critically linked to understanding and controlling interfacial properties. In the work reported here, ion implantation is introduced as a new method for tailoring the complex nanoscale interfaces between multiwall carbon nanotubes (MWCNTs) and a ceramic matrix. The results show that surface layers of the nanocomposite with high toughness can be ...
DOI:
10.1016/j.carbon.2020.02.075

18. Research on joint emission reduction in supply chain based on carbon footprint of the product

Author:
Wang, Liang; Hui, Mengmeng
Source:
Journal of cleaner production 2020 v.263 pp. 121086
ISSN:
0959-6526
Subject:
carbon; carbon footprint,   etc   ; income; sales; simulation models; supply chain;     Show all 6 Subjects
Abstract:
... This paper considers a two-echelon manufacturer-retailer supply chain system based on carbon footprint under time-varying demand, the purpose of which is to study the effect of joint emission reduction on emission reduction level and revenues of the retailer and the manufacturer, compared with non-joint. Firstly, it constructs the revenue model of non-joint emission reduction and confirms the opti ...
DOI:
10.1016/j.jclepro.2020.121086

19. Nanosized α-MnS homogenously embedded in axial multichannel carbon nanofibers as freestanding electrodes for lithium-ion batteries

Author:
Zhou, Xing-hai; Su, Kun-mei; Kang, Wei-min; Cheng, Bo-wen; Li, Zhen-huan
Source:
Journal of materials science 2020 v.55 no.17 pp. 7403-7416
ISSN:
0022-2461
Subject:
carbon; carbon nanofibers,   etc   ; anodes; crosslinking; electrolytes; lithium; lithium batteries; sulfides;     Show all 8 Subjects
Abstract:
... To buffer the unavoidable volume expansion and structure collapse problems of transitional metal sulfides during lithiation process, herein, nanosized α-MnS homogenously embedded in axial multichannel carbon nanofibers was well designed and directly used as freestanding anodes for lithium-ion batteries (LIBs). The obtained carbon nanofibers were interwoven into a flexible and cross-linked film, wh ...
DOI:
10.1007/s10853-020-04509-6

20. Screen-printed carbon based biosensors and their applications in agri-food safety

Author:
Smart, A.; Crew, A.; Pemberton, R.; Hughes, G.; Doran, O.; Hart, J.P.
Source:
Trends in analytical chemistry 2020 v.127 pp. 115898
ISSN:
0165-9936
Subject:
carbon; carbon electrodes,   etc   ; antibodies; biosensors; enzymes; nanoparticles; oligonucleotides;     Show all 7 Subjects
Abstract:
... This review focuses on the ways in which screen-printed carbon electrodes have been tailored with different biorecognition elements, including enzymes, antibodies, and aptamers, often with other modifiers, such as mediators and nanoparticles, to produce electrochemical biosensors for a variety of analytes of importance in agri-food safety. Emphasis is placed on the strategies of biosensor fabricat ...
DOI:
10.1016/j.trac.2020.115898