Ultralight Biomass‐Derived Carbonaceous Nanofibrous Aerogels with Superelasticity and High Pressure‐Sensitivity

Si, Yang; Wang, Xueqin; Yan, Cairong; Liu, Yang; Yu, Jianyong; Ding, Bin

doi:10.1002/adma.201603143

Cited by 448 publications

(360 citation statements)

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“…Most of the work was nevertheless concentrated on graphene [23] and graphene oxide [24,25], when it was realized that ice-templating could be used to obtain bulk macroporous graphene with dimensions (centimeter) of practical sizes. Aerogels with a density as low as 0.14mg/cm 3 [26] and 0.16 mg/cm 3 [27] have been reported, and there is no reason why we could not obtain even lower densities, starting with even more dilute suspensions. These aerogels have been considered for a variety of applications such as sensors, catalysis, anodes for fuel cells, battery, or super capacitors, adsorption, or even tissue engineering.…”

Section: Ice-templated Aerogelsmentioning

confidence: 99%

The lure of ice-templating: Recent trends and opportunities for porous materials

Deville

2018

Scripta Materialia

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Ice-templating is a simple materials processing and shaping route where the growth of crystals from a solvent template the porosity. Although the principles of ice-templating were established a long time ago, it has lured considerable attention over the past 5 years to become a well-established processing route for porous materials of all kinds. In this viewpoint, I summarize the current status and recent trends of ice-templating studies. I then review the unique assets of ice-templating and propose a roadmap of the most promising or pressing questions and opportunities in this domain.

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Section: Ice-templated Aerogelsmentioning

confidence: 99%

The lure of ice-templating: Recent trends and opportunities for porous materials

Deville

2018

Scripta Materialia

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“…In this approach, some precursors in conjunction with molecular, supramolecular, or colloidal crystal templates are often used as building blocks for nanotectonic assembly. [53] In the template-directed assembly process, some templates are often used, such as cellulose, [54] electrospun SiO 2 nanofibers, [55,56] and tellurium nanowires (TeNWs). [57] The templates of TeNWs are ultrathin with diameters of 7-9 nm and lengths of several micrometers, which can be prepared by our group in a kilogram scale with a one-pot hydrothermal process.…”

Section: Template-directed Assembly Methodsmentioning

confidence: 99%

Macroscopic‐Scale Three‐Dimensional Carbon Nanofiber Architectures for Electrochemical Energy Storage Devices

Chen

Feng

Liang

et al. 2017

Advanced Energy Materials

170

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Therefore, it is necessary to develop highperformance energy storage devices for facilitating the effective utilization of intermittent renewable energy sources. [7][8][9] Among varieties of electrochemical energy storage devices, supercapacitors (known as electrochemical capacitors) [10,11] and some rechargeable batteries (lithium-ion batteries (LIBs), lithiumsulfur (Li-S) batteries, and metal-O 2 batteries) [12][13][14][15] are at the frontier, because they can transport high power and store high energy. Nowadays, they play an indispensable role in our daily life by powering numerous portable electronic devices (e.g., cell phones and laptops), hybrid electric vehicles, and large-scale electrical grids. [16][17][18][19] It is well accepted that the performance of energy storage devices mainly depended on their electrode materials. [20,21] Owing to the advantages of large surface area, light weight, good electrical conductivity, and high thermal/ chemical stability, carbon materials have been considered as the most important electrode materials of supercapacitors and rechargeable batteries [8,20,21] Hence, various nanostructured carbons, such as carbon/graphene quantum dots, [22,23] carbon nanofiber (CNFs), [16,24] carbon nanotubes (CNTs), [13,25] graphene [26][27][28][29][30][31][32] carbon nanosheets, [33,34] 3D carbon nanostructures, [35][36][37] and porous carbon, [38,39] have gained great attention. Among these materials, 3D carbon nanomaterials have some advantages. The interlinked architecture not only shortens transport distances for ions in the well-interconnected wall structure, but also provides a continuous pathway endowing for the fast electron transport. [40] Moreover, the structural interconnectivities guarantee higher electrical conductivity and better mechanical stability. [36,41] Thereby, the design and fabrication of various 3D carbonbased nanostructures, including carbon nanotube networks, graphene gels, graphene foams, and 3D CNFs, have been intensively investigated.Over the past few years, there are many reviews summarizing the progress of fabricating 3D carbon-based nanomaterials. For example, Schneider et al. overviewed the recent advance in the synthesis of 3D arranged carbon nanotube architectures. [42] Li et al. reviewed the carbon-based 3D nanostructures for supercapacitors. [36] Cao and Gui et al. comprehensively reviewed the recent progress in synthesis, properties, and energy applications of CNT sponges, aerogels, and hierarchical composites. [43] The development of high-performance electrochemical energy storage devices is critical for addressing energy crises and environmental pollution.

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“…[170] Copyright 2016, Nature Publishing Group. the strain or pressure induced by radial artery waves at the wrist or finger tip, [44,57,59,103,120,123,126,139,203] jugular venous pulses at the neck [57,59,151] or ankle brachial artery pulses near the foot. [21] Monitoring of respiration rate is critical in diagnosis of many disorders or diseases such as sleep disorders, asthma and anemia.…”

Section: Health Monitoringmentioning

confidence: 99%

“…[6,138] Numerous materials and configurations have been reported for resistive pressure sensing. Pressure sensitive pathways can be formed using interlocked structures, [139][140][141][142][143][144] percolative networks of nanomaterials, [57,145,146] microfabricated structures (e.g., micropyramids, micropillars), [147][148][149] porous structures (e.g., sponges, foams, porous rubbers) [26,150,151] and so forth. For example, Figure 5a presents the working principle of a pressure sensor using interlocked microdome array.…”

Section: Wearable Tactile Sensorsmentioning

confidence: 99%

Nanomaterial‐Enabled Wearable Sensors for Healthcare

Yao

Swetha

Zhu

2017

Adv Healthcare Materials

469

296

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humidity level, and concentration of harmful gases, and airborne particulates can provide valuable information for the prediction, management, and treatment of chronic diseases. [4,5] In addition to the applications in wearable health monitoring, continuous tracking of daily and sports activities can offer an efficient way to assess the well-being and athletic performances. [6] In order to ensure a robust and conformal contact with the curvilinear, coarse, and dynamic surface of skin without impeding daily activities, the wearable sensor should have low modulus and high stretchability. The epidermis has a modulus of 140-600 kPa while the dermis has an even lower modulus of 2-80 kPa. [7] Skin itself can be stretched elastically up to 15% and with the help of wrinkles and creases, the overall stretchability can reach as high as 100% during daily motions. [8] In addition to good wearability, wearable sensors should be highly sensitive, lightweight, low-cost, and with low power consumption. To achieve these features, nanomaterials that are compliant, possessing larger surface area and exceptional material properties, and compatible with low-cost fabrication processes are widely employed as building blocks for developing wearable sensors.In this review, we start from a brief overview of nanomaterials, their related structural designs and fabrication processes (Section 2). Following that, recent advances of nanomaterialenabled wearable sensors including temperature, electrophysiological, strain, tactile, electrochemical, and other sensors will be summarized (Section 3). A survey on the integration of multiple sensors and other components into wearable systems will be given in Section 4. The application of nanomaterialenabled wearable sensors for healthcare including health monitoring, activity tracking, and electronic skin will be presented in Section 5. The challenges and opportunities will be discussed at the end. Nanomaterials, Structural Designs, and Fabrication ProcessesNanomaterials can be classified into two categories-top-down fabricated ones and bottom-up synthesized ones. [9] The focus of this review is on the wearable sensors based on bottom-up synthesized nanomaterials. Nanomaterials can be synthesized into various dimensions, from 0D such as metallic nanoparticles (NPs), to 1D such as carbon nanotubes (CNTs), and metallic nanowires (NWs), to 2D such as graphene and transition metal Highly sensitive wearable sensors that can be conformably attached to human skin or integrated with textiles to monitor the physiological parameters of human body or the surrounding environment have garnered tremendous interest. Owing to the large surface area and outstanding material properties, nanomaterials are promising building blocks for wearable sensors. Recent advances in the nanomaterial-enabled wearable sensors including temperature, electrophysiological, strain, tactile, electrochemical, and environmental sensors are presented in this review. Integration of multiple sensors for multimodal sensing and integration with...

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Ultralight Biomass‐Derived Carbonaceous Nanofibrous Aerogels with Superelasticity and High Pressure‐Sensitivity

Cited by 448 publications

References 44 publications

The lure of ice-templating: Recent trends and opportunities for porous materials

The lure of ice-templating: Recent trends and opportunities for porous materials

Macroscopic‐Scale Three‐Dimensional Carbon Nanofiber Architectures for Electrochemical Energy Storage Devices

Nanomaterial‐Enabled Wearable Sensors for Healthcare

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