NIST-TAPPI Workshop on Measurement Needs for Cellulose Nanomaterial

Davis, Chelsea S.; Moon, Robert J.; Ireland, Sean; Johnston, Linda; Shatkin, Jo Anne; Nelson, Kim; Foster, E. Johan; Forster, Aaron M.; Postek, Michael T.; Vladár, András; Gilman, Jeffrey W.

doi:10.6028/nist.sp.1192

Cited by 9 publications

(6 citation statements)

References 18 publications

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“…Like most of the low‐dimensional nanomaterials, CNF as an emerging nanomaterial also meets with the production capacity problem. However, it is noteworthy that CNF is moving out of the lab and entering the pilot stage . More than ten companies in the worldwide have established their own CNF pilot with a total annual production capacity of over 10 000 tonnes in 2018.…”

Section: Integrated Electrode and Current Collectormentioning

confidence: 99%

“…However, it is noteworthy that CNF is moving out of the lab and entering the pilot stage. [93] More than ten companies in the worldwide have established their own CNF pilot with a total annual production capacity of over 10 000 tonnes in 2018. The manufacturing cost of CNF may also reduce to below 3 $ kg −1 by 2030 according to the objective set by Nanocellulose Adv.…”

Section: Conductive Percolation Network-based Electrodesmentioning

confidence: 99%

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Thick Electrode Batteries: Principles, Opportunities, and Challenges

Kuang

Chen

Kirsch

et al. 2019

Advanced Energy Materials

535

413

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Recent reviews on LBs have provided a good overview of the developments of high energy density LBs based on diverse battery chemistries. [3][4][5][6] It is believed that the energy density of current LBs can be improved up to 300-350 Wh kg −1 in a short time by using high-nickel (Ni) content cathodes, silicon (Si) dominant anodes, and higher voltage electrolytes, but further progress is needed to achieve an acceptable lifetime for practical application. [7] In regards to long term goals, continued research and development (R&D) of next-generation LBs is necessary to meet the Battery500 Project target of a cell-level specific energy of 500 Wh kg −1 , [8] which necessitates a combination of both innovative battery chemistries (such as lithium (Li)-sulfur (S), Li-O 2 , Li-CO 2 , and so on), and cell configurations (improved active material ratio and cell integration). [9] However, the majority of current research efforts are dedicated to the R&D of battery materials while battery configurational design is relatively overlooked. Interestingly, with the progress in the development of water-in-salt electrolyte and the corresponding battery chemistry, aqueous LIBs are also possible to meet the Battery 500 Project target. A representative work is the aqueous LIBs that has been recently reported by Yang et al. which achieves a stable operation potential of 4.2 V and energy density of 460 Wh kg −1 . [10] It is great progress but worthy noting that the energy density calculation is based on the mass of anode and cathode. When the mass of the electrolyte is included, the full-cell energy density is dropped to 304 Wh kg −1 , revealing the important role of battery configurational design.Structural engineering provides a feasible and universal way to further improve the energy density of LBs without changing the fundamental battery chemistries. Since the battery's energy only comes from the electrically active materials in the electrodes, the core principle for the novel structural design of batteries is to minimize the ratio of inactive components while maintaining or improving battery performance per mass or volume of active material. Common strategies include the optimization of battery packaging with thinner, more robust materials, the reduction of electrode porosity with a higher packing density and increased electrolyte uptake, and the utilization of thick electrodes. The first is relatively hard to improve in a short time and would require a breakthrough in battery packaging materials with carefully evaluated cost and safety parameters. As for the reduction of electrolyte, it is also difficult toThe ever-growing portable electronics and electric vehicle markets heavily influence the technological revolution of lithium batteries (LBs) toward higher energy densities for longer standby times or driving range. Thick electrode designs can substantially improve the electrode active material loading by minimizing the inactive component ratio at the device level, providing a great platform for enhancing the overall energy densi...

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Section: Integrated Electrode and Current Collectormentioning

confidence: 99%

Section: Conductive Percolation Network-based Electrodesmentioning

confidence: 99%

Thick Electrode Batteries: Principles, Opportunities, and Challenges

Kuang

Chen

Kirsch

et al. 2019

Advanced Energy Materials

535

413

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“…Realizing their potential applications will require the development of relatively inexpensive and rapid characterization methods that can be used for routine quality control during production as well as methods for more detailed metrological characterization. Particle size distributions and surface area measurements are identified as key challenges along with methods for analyzing CNC surface chemistry and for detecting and characterizing CNCs in complex environments for environmental health and safety monitoring . Measurement of CNC particle size distributions has many of the same challenges that are encountered for other nanomaterials .…”

Section: Introductionmentioning

confidence: 99%

“…Particle size distributions and surface area measurements are identified as key challenges along with methods for analyzing CNC surface chemistry and for detecting and characterizing CNCs in complex environments for environmental health and safety monitoring. 15 Measurement of CNC particle size distributions has many of the same challenges that are encountered for other nanomaterials. 16 These include the fact that particle size is a method-determined measurand, the relatively broad size distributions for most CNCs, and the tendency of CNCs to form aggregates and agglomerates; in addition, measuring particle size distributions by ensemble methods such as dynamic light scattering is challenging for high aspect ratio CNCs.…”

Section: ■ Introductionmentioning

confidence: 99%

Correlating Cellulose Nanocrystal Particle Size and Surface Area

Brinkmann¹,

Chen²,

Couillard³

et al. 2016

Langmuir

147

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Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1021/acs.langmuir.6b01376Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Correlating cellulose nanocrystal particle size and surface area Brinkmann, Andreas; Chen, Maohui; Couillard, Martin; Jakubek, Zygmunt J.; Leng, Tianyang; Johnston, Linda J.http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/droits L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=df1fceea-c08d-4b99-8897-d9370e2db3c7 http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=df1fceea-c08d-4b99-8897-d9370e2db3c7Correlating Cellulose Nanocrystal Particle Size and Surface Area ABSTRACT: Cellulose nanocrystals (CNCs) are negatively charged nanorods that present challenges for characterization of particle size distribution and surface areatwo of the common parameters for characterizing nanomaterials. CNC size distributions have been measured by two microscopy methods: atomic force microscopy (AFM) and transmission electron microscopy (TEM). The agreement between the two methods is good for length measurements, after taking into consideration tip-convolution effects for AFM. However, TEM widths are almost twice as large as AFM heightsan effect that we hypothesize is due to counting of a larger fraction of laterally associated CNCs in the TEM images. Overall, the difficulty of selecting individual particles for analysis and possible bias due to selection of a specific particle size during sample deposition are the main limitations associated with the microscopy measurements. The microscopy results were compared to Zaverage data from dynamic light scattering, which is a useful method for routine analysis and for examining trends in size as a function of sample treatment. Measurements as a function of sonication energy...

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“…As highlighted at the National Institute of Standards and Technology (NIST) Workshop on Measurement Needs for Cellulose Nanomaterials, 28 the ability to characterize key CNM properties quickly and reliably is critical to manufacture CNM reproducibly with consistent particle geometry, surface properties and molecular-scale morphology. The measurement techniques that are used by academics and researchers on the benchtop are too time intensive and require a high level of skill to operate -for example, electron microscopy and atomic force microscopy.…”

Section: Barriers To Commercializationmentioning

confidence: 99%

What do we still need to understand to commercialize cellulose nanomaterials?^†

et al. 2015

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What are cellulose nanomaterialsand why are they of interest?Cellulose nanomaterials (CNM) are naturally occurring nanoparticles present in lignocellulosic biomass (e.g., trees, grasses, municipal waste), bacteria (e.g., acetobacter) and invertebrate sea creatures (e.g., tunicates). Over the past decade, numerous applications for CNM have been developed and investigated worldwide. 1-10Cellulose nanocrystals (CNC) were first isolated in the laboratory by Mukherjee and Woods in 1953, 11 and a commercially scalable process for cellulose nanofiber (CNF) production was invented by ITT Rayonier in 1977. 12,13 Since then, several inventions and techniques have led to the development of pilot-scale production methods which have been implemented across the globe (CelluForce in Canada, American Process, Inc. in the United States of America and Innventia in Sweden to name a few). CNM are an attractive alternative to other high-aspect-ratio nanoparticles, such as carbon nanotubes and silica nanowhiskers, due to their renewable, sustainable origins and expected low toxicity. (Toxicology studies are ongoing but 'powdered cellulose' has recently been placed on the list of Permitted Food Additives in Canada. )Cellulose consists of glucose molecules linked together into polysaccharide chains, which align to form nanocrystalline domains. The hydroxyl substituent groups on each repeat unit form both inter-and intra-chain hydrogen bonds, leading to unique mechanical and thermal properties. 7,15 The nanocrystalline domains are linked together into nanofiber bundles by flexible, amorphous hemicellulose regions. Various processing techniques have been developed to isolate the two general classes of CNM -that is, cellulose nanofibrils and the individual CNC. Isolation of CNC is What do we still need to understand to commercialize cellulose nanomaterials? Davis, Grolman, Karim and Gilman Published with permission by the ICE under the CC-BY license.

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NIST-TAPPI Workshop on Measurement Needs for Cellulose Nanomaterial

Cited by 9 publications

References 18 publications

Thick Electrode Batteries: Principles, Opportunities, and Challenges

Thick Electrode Batteries: Principles, Opportunities, and Challenges

Correlating Cellulose Nanocrystal Particle Size and Surface Area

What do we still need to understand to commercialize cellulose nanomaterials?^†

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NIST-TAPPI Workshop on Measurement Needs for Cellulose Nanomaterial

Cited by 9 publications

References 18 publications

Thick Electrode Batteries: Principles, Opportunities, and Challenges

Thick Electrode Batteries: Principles, Opportunities, and Challenges

Correlating Cellulose Nanocrystal Particle Size and Surface Area

What do we still need to understand to commercialize cellulose nanomaterials?†

Contact Info

Product

Resources

About

What do we still need to understand to commercialize cellulose nanomaterials?^†