A5025029248- Carbon Nanotubes in Composites
- Graphene research and applications
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Advancements in Battery Materials
- Advanced Materials and Mechanics
- Nanopore and Nanochannel Transport Studies
- Quantum Dots Synthesis And Properties
- Fiber-reinforced polymer composites
- Advanced battery technologies research
- Nanowire Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Advanced Battery Materials and Technologies
- Mechanical and Optical Resonators
- Perovskite Materials and Applications
- Polymer composites and self-healing
- Cellular and Composite Structures
- Advanced Photocatalysis Techniques
- Fuel Cells and Related Materials
- Neuroscience and Neural Engineering
- Thermal Radiation and Cooling Technologies
- Pickering emulsions and particle stabilization
- Nanomaterials and Printing Technologies
- Nanotechnology research and applications
Peking University
2014-2024
Jinan University
2024
Sun Yat-sen University
2012-2014
National Center for Nanoscience and Technology
2014
Tsinghua University
1998-2011
University of Hawaiʻi at Mānoa
2005-2009
University of Hawaii System
2005-2009
University of California, Los Angeles
2009
Materials Processing (United States)
2007
Rensselaer Polytechnic Institute
2002-2006
Carbon nanotube sponges are synthesized by chemical vapor deposition, in which nanotubes self-assembled into a three-dimensionally interconnected framework. The very light, highly porous, hydrophobic pristine form, and can be elastically reversibly deformed any shape. float on water surfaces absorb large-area spreading oil films (see images), suggesting promising environmental applications. Detailed facts of importance to specialist readers published as "Supporting Information". Such...
We report that freestanding films of vertically aligned carbon nanotubes exhibit super-compressible foamlike behavior. Under compression, the collectively form zigzag buckles can fully unfold to their original length upon load release. Compared with conventional low-density flexible foams, nanotube show much higher compressive strength, recovery rate, and sag factor, open-cell nature arrays gives excellent breathability. The present a class foam structures, consisting well-arranged...
Organic-inorganic metal halide perovskite solar cells were fabricated by laminating films of a carbon nanotube (CNT) network onto CH3NH3PbI3 substrate as hole collector, bypassing the energy-consuming vacuum process deposition. In absence an organic hole-transporting material and contact, CNTs formed cell with efficiency up to 6.87%. The CH3NH3PbI3/CNTs semitransparent showed photovoltaic output dual side illuminations due transparency CNT electrode. Adding spiro-OMeTAD forms composite...
Abstract A hierarchical N‐doped carbon nanotube‐graphene hybrid nanostructure (NCNT‐GHN), in which the graphene layers are distributed inside CNT inner cavities, was designed to efficiently support noble metal (e.g., PtRu) nanoparticles. Well‐dispersed PtRu nanoparticles with diameters of 2–4 nm were immobilized onto these NCNT‐GHN supports by a low‐temperature chemical reduction method without any pretreatment. Compared conventional CNTs and commercial catalysts. much better catalytic...
We directly configured double-walled carbon nanotubes as energy conversion materials to fabricate thin-film solar cells, with serving both photogeneration sites and a charge carriers collecting/transport layer. The cells consist of semitransparent thin film conformally coated on n-type crystalline silicon substrate create high-density p−n heterojunctions between n-Si favor separation extract electrons (through n-Si) holes nanotubes). Initial tests have shown power efficiency >1%, proving...
Development of sorbent materials with high selectivity and sorption capacity, easy collection recyclability is demanding for spilled oil recovery. Although many have been proposed, a systematic study on how they can be reused possible performance degradation during regeneration remains absent. Here we report magnetic carbon nanotube sponges (Me-CNT sponge), which are porous structures consisting interconnected CNTs rich Fe encapsulation. The Me-CNT show mass capacity diesel reached 56 g/g,...
Solar reflective and thermally emissive surfaces offer a sustainable way to cool objects under sunlight. However, white or silvery reflectance of these does not satisfy the need for color. Here, we present paintable bilayer coating that simultaneously achieves color radiative cooling. The comprises thin, visible-absorptive layer atop nonabsorptive, solar-scattering underlayer. top absorbs appropriate visible wavelengths show specific colors, while underlayer maximizes reflection...
Abstract In recent decades, extensive nanomaterials and related techniques have been proposed to achieve high capacities surpassing conventional battery electrodes. Nevertheless, most of them show low mass loadings areal capacities, which deteriorates the cell‐level energy densities increases cost after consideration inactive components in batteries. Achieving high‐areal‐capacity is essential for those advanced materials move out laboratories into practical applications, yet remains...
Abstract Hydrogel sensors are widely utilized in soft robotics and tissue engineering due to their excellent mechanical properties biocompatibility. However, high‐water environments, traditional hydrogels can experience significant swelling, leading decreased electrical performance, potentially losing shape, sensing capabilities. This study addresses these challenges by leveraging the Hofmeister effect, coupled with directional freezing salting‐out techniques, develop a layered,...
Boiling heat transfer from hybrid micro-nano structured thermal interfaces has been studied experimentally using PF5060 and deionized water as working fluids for the range of saturation temperatures Tsat between 35 °C 60 °C. Various enhancement structures were fabricated surface micromachining in silicon. The performance smooth roughened silicon surfaces, bare fully coated with carbon nanotubes (CNTs), silicon-etched well CNTs-based pin-fin arrays, 3D microstructures have detail. highest...
We report a carbon nanotube array-encapsulated phase change composite in which the distribution (or areal density) could be tailored by uniaxial compression. The n-eicosane (C20) was infiltrated into porous array to make highly conductive nanocomposite while maintaining dispersion and connection among matrix with controlled density determined compressive strains along lateral direction. resulting electrically composites can store heat at driven voltages as low 1 V fast speed high...
Most previous fiber-shaped solar cells were based on photoelectrochemical systems involving liquid electrolytes, which had issues such as device encapsulation and stability. Here, we deposited classical semiconducting polymer-based bulk heterojunction layers onto stainless steel wires to form primary electrodes adopted carbon nanotube thin films or densified yarns replace conventional metal counter electrodes. The fiber with film yarn showed power conversion efficiencies in the range 1.4%...
Abstract Lightweight strong aerogels have many applications, but they suffer from the trade‐off between key mechanical properties, and it remains challenging to realize superelastic simultaneously possessing high strength excellent structural recovery. Herein, a strategy overcome such problem by designing carbon nanotube (CNT)‐based aerogel consisting of flexible‐rigid core‐shell structure, which achieve combination properties including superelasticity (complete recovery at 90%), (over 12...
Large-scale brain activity mapping is important for understanding the neural basis of behaviour. Electrocorticograms (ECoGs) have high spatiotemporal resolution, bandwidth, and signal quality. However, invasiveness surgical risks electrode array implantation limit its application scope. We developed an ultrathin, flexible shape-changing (SCEA) large-scale ECoG with minimal invasiveness. SCEAs were inserted into cortical surfaces in compressed states through small openings skull or dura fully...
Actuators based on shape memory polymers and composites incorporating nanomaterial additives have been extensively studied; achieving both high output stress precise change by low-cost, scalable methods is a long-term-desired yet challenging task. Here, conventional (polyurea) carbon nanotube (CNT) fillers are combined to fabricate reinforced composite fibers with exceptional actuation performance, wet-spinning method amenable for continuous production. It found that thermal-induced...
An unusual growth phenomenon, with no precedent in vapor-phase thin film growth, is described here, for the case of stacked multiple layers vertically aligned carbon nanotubes(1-6) on solid substrates. As ordered nanotubes are sequentially deposited from vapor onto substrate, each layer nucleates and grows original substrate surface at bottom existing stacks nanotubes. In contrast to conventional understanding deposition,(7) mechanism here has similarities porous oxide formation surfaces.(8)...
The integration of organic and inorganic building blocks into novel nanohybrids is an important tool to exploit innovative materials with desirable functionalities. For this purpose, carbon nanotube−nanoparticle nanoarchitectures are intensively studied. We report here efficient noncovalent chemical route density-controllably uniformly assemble single-walled nanotubes CdS nanoparticles. methodology not only promises the resulting hybrids will be solution-processable but also endows distinct...