Diamond-Like Carbon Nanofoam from Low-Temperature Hydrothermal Carbonization of a Sucrose/Naphthalene Precursor Solution

Frese, Natalie; Mitchell, Shelby Taylor; Bowers, Amanda; Sattler, K.

doi:10.3390/c3030023

Cited by 11 publications

(5 citation statements)

References 136 publications

(164 reference statements)

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“…31 Thus, laser irradiation has demonstrated its effectiveness for carbon transformation in the formation of NDs. A few carbonous materials have also been used in the synthesis of NDs, including the ultrasonication of carbonaceous aerosols, 32 the hydrothermal carbonization of a sucrose/naphthalene solution, 33 and the carbonization of wood charcoal. 34 These examples point to the possibility of fabricating NDs from carbon composites.…”

Section: ■ Introductionmentioning

confidence: 99%

Fabricating Nanodiamonds from Biomass by Direct Laser Writing under Ambient Conditions

Yan

Zhang

Deng

et al. 2021

ACS Sustainable Chem. Eng.

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Commercial nanodiamonds (NDs) are usually produced by detonation and chemical vapor deposition. While these methods normally require either the application of extreme temperatures/pressures or expensive and hazardous gaseous/ chemical precursors, in this study, NDs were produced on paper made from nanolignin/cellulose nanofibrils (LCNF) composite film by means of direct laser writing at ambient temperature and air pressure. The generation of NDs was found to depend largely on high laser power. Graphene nanoribbons and carbon nanoonions were obtained at lower laser power as acceptable products. As cellulose nanofibrils were unsuccessfully lased in this study, the effects of diverse components of LCNFs were investigated. Results showed that a suitable cellulose content in LCNFs can accelerate laser carbonization, while an excessive oxygen content component will lead to the combustion of LCNFs in air. Moreover, it was found that a higher lignin content was essential for the formation of NDs. Individual nanolignin particles were able to be converted into NDs. However, this lasing process needed a higher-power laser than that did that from LCNF. Considering the abundance and renewability of LCNFs, the direct laser writing technique provides a simple, inexpensive, and environmentally friendly method for the synthesis of NDs and the fabrication of paper-based carbon patterns from biomass, which is both inexpensive and readily available.

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Section: ■ Introductionmentioning

confidence: 99%

Fabricating Nanodiamonds from Biomass by Direct Laser Writing under Ambient Conditions

Yan

Zhang

Deng

et al. 2021

ACS Sustainable Chem. Eng.

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“…Despite the absence of explicit knowledge on these green pathways, very limited studies have explored ND synthesis using techniques that are not well‐established and still under development. These include hydrothermal carbonization of a sucrose/naphthalene solution [ 314 ] and direct laser writing on a paper substrate made from cellulose nanofibrils under ambient conditions. [ 315 ] An important question is raised here as to whether renewable carbon sources or waste‐carbon biomass can also be potentially carbonized into diamond particles with the presence or absence of NV color defects, similar in behavior to CDs.…”

Section: Green Fabrication Strategies Using Renewable Feedstocksmentioning

confidence: 99%

Fluorescent Nanocarbons: From Synthesis and Structure to Cancer Imaging and Therapy

Ghasemlou,

PN,

Alexander

et al. 2024

Advanced Materials

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Nanocarbons are emerging at the forefront of nanoscience, with diverse carbon nanoforms emerging over the last two decades. Early cancer diagnosis and therapy, driven by advanced chemistry techniques, play a pivotal role in mitigating mortality rates associated with cancer. Nanocarbons, with an attractive combination of well‐defined architectures, biocompatibility, and nanoscale dimension, offer an incredibly versatile platform for cancer imaging and therapy. This paper aims to review the underlying principles regarding the controllable synthesis, fluorescence origins, cellular toxicity, and surface functionalization routes of several classes of nanocarbons: carbon nanodots, nanodiamonds, carbon nanoonions, and carbon nanohorns. This review also highlights recent breakthroughs regarding the green synthesis of different nanocarbons from renewable sources. It also presents a comprehensive and unified overview of the latest cancer‐related applications of nanocarbons and how they could be designed to interface with biological systems and work as cancer diagnostics and therapeutic tools. The commercial status for large‐scale manufacturing of nanocarbons is also presented. Finally, it proposes future research opportunities aimed at engendering modifiable and high‐performance nanocarbons for emerging applications across medical industries. This work is envisioned as a cornerstone to guide interdisciplinary teams in crafting fluorescent nanocarbons with tailored attributes that can revolutionize cancer diagnostics and therapy.This article is protected by copyright. All rights reserved

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“…This achievement has motivated their use in supercapacitors [17] and thermal devices [18,19]. In addition, diamond-like nanofoams have been synthesized by hydrothermal carbonization [20] of sucrose and from repeated laser ablation of carbon materials [21,22], producing filament structures with a mixture of sp 3 ranging from 20 to 45%. Both types of foams could be considered a unique group to perform studies of carbon foams under pressure.…”

Section: Introductionmentioning

confidence: 99%

Nanoporous Amorphous Carbon with Exceptional Ultra-High Strength

et al. 2023

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Nanoporous materials show a promising combination of mechanical properties in terms of their relative density; while there are numerous studies based on metallic nanoporous materials, here we focus on amorphous carbon with a bicontinuous nanoporous structure as an alternative to control the mechanical properties for the function of filament composition.Using atomistic simulations, we study the mechanical response of nanoporous amorphous carbon with 50% porosity, with sp3 content ranging from 10% to 50%. Our results show an unusually high strength between 10 and 20 GPa as a function of the %sp3 content. We present an analytical analysis derived from the Gibson–Ashby model for porous solids, and from the He and Thorpe theory for covalent solids to describe Young’s modulus and yield strength scaling laws extremely well, revealing also that the high strength is mainly due to the presence of sp3 bonding. Alternatively, we also find two distinct fracture modes: for low %sp3 samples, we observe a ductile-type behavior, while high %sp3 leads to brittle-type behavior due to high high shear strain clusters driving the carbon bond breaking that finally promotes the filament fracture. All in all, nanoporous amorphous carbon with bicontinuous structure is presented as a lightweight material with a tunable elasto-plastic response in terms of porosity and sp3 bonding, resulting in a material with a broad range of possible combinations of mechanical properties.

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Diamond-Like Carbon Nanofoam from Low-Temperature Hydrothermal Carbonization of a Sucrose/Naphthalene Precursor Solution

Cited by 11 publications

References 136 publications

Fabricating Nanodiamonds from Biomass by Direct Laser Writing under Ambient Conditions

Fabricating Nanodiamonds from Biomass by Direct Laser Writing under Ambient Conditions

Fluorescent Nanocarbons: From Synthesis and Structure to Cancer Imaging and Therapy

Nanoporous Amorphous Carbon with Exceptional Ultra-High Strength

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