Carbon Nanotube Architectures Research Articles

L-Lactate Electrochemical Biosensor Based on an Integrated Supramolecular Architecture of Multiwalled Carbon Nanotubes Functionalized with Avidin and a Recombinant Biotinylated Lactate Oxidase.

L-Lactate is an important bioanalyte in the food industry, biotechnology, and human healthcare. In this work, we report the development of a new L-lactate electrochemical biosensor based on the use of multiwalled carbon nanotubes non-covalently functionalized with avidin (MWCNT-Av) deposited at glassy carbon electrodes (GCEs) as anchoring sites for the bioaffinity-based immobilization of a new recombinant biotinylated lactate oxidase (bLOx) produced in Escherichia coli through in vivo biotinylation. The specific binding of MWCNT-Av to bLOx was characterized by amperometry, surface plasmon resonance (SPR), and electrochemical impedance spectroscopy (EIS). The amperometric detection of L-lactate was performed at -0.100 V, with a linear range between 100 and 700 µM, a detection limit of 33 µM, and a quantification limit of 100 µM. The proposed biosensor (GCE/MWCNT-Av/bLOx) showed a reproducibility of 6.0% and it was successfully used for determining L-lactate in food and enriched serum samples.

Augmenting the mechanical performance of three‐dimensional woven composites by the synergistic effect of fabric architecture and interfacial interaction of carbon nanotubes

AbstractThree‐dimensional (3D) woven fabrics offer many advantages over planar woven fabrics for composite applications. Because of the complex structure of 3D woven fabrics, an in‐depth investigation is needed to understand the effects of fabric architecture and nanofillers on the mechanical and failure behavior of 3D woven composites. The present study investigates the effect of 3D woven ultrahigh‐molecular‐weight polyethylene (UHMWPE) orthogonal fabric architecture, with or without nanofillers, on the mechanical properties of composites. 3D woven orthogonal fabrics with varying proportions of stuffer‐to‐binder (S/B) yarns were manufactured and reinforced with an epoxy (EP) matrix. Multiwalled carbon nanotubes (MWCNTs) were infused as nanofillers to improve the interaction between the UHMWPE fabric and the EP matrix. 3D woven composite having an S/B ratio of 2:1 showed the maximum tensile strength and toughness. On the other hand, 3D woven composite with an S/B ratio of 4:1 showed higher flexural strength and impact resistance. The failure mechanism was also studied by examining the fractured surfaces of composites, which revealed matrix cracking, fiber pullout, predominant binder yarn failure, and yarn slippage. From this study, it is understood that for 3D fabric reinforcement, a balance between structural integrity and load‐bearing capacity of yarns is decisive, whereas for the matrix, the incorporation of MWCNTs is found to be advantageous.Highlights The role of structure of 3D woven orthogonal fabric on the mechanical behaviour of the UHMWPE‐epoxy composite is investigated. The addition of functionalized MWCNTs improves the tensile, flexural, and impact properties. The decisive role of the ratio of stuffer‐to‐binder yarns is established. Matrix cracking, debonding, and yarn failure are observed during tensile failure.

Engineering chirality at wafer scale with ordered carbon nanotube architectures

Creating artificial matter with controllable chirality in a simple and scalable manner brings new opportunities to diverse areas. Here we show two such methods based on controlled vacuum filtration - twist stacking and mechanical rotation - for fabricating wafer-scale chiral architectures of ordered carbon nanotubes (CNTs) with tunable and large circular dichroism (CD). By controlling the stacking angle and handedness in the twist-stacking approach, we maximize the CD response and achieve a high deep-ultraviolet ellipticity of 40 ± 1 mdeg nm−1. Our theoretical simulations using the transfer matrix method reproduce the experimentally observed CD spectra and further predict that an optimized film of twist-stacked CNTs can exhibit an ellipticity as high as 150 mdeg nm−1, corresponding to a g factor of 0.22. Furthermore, the mechanical rotation method not only accelerates the fabrication of twisted structures but also produces both chiralities simultaneously in a single sample, in a single run, and in a controllable manner. The created wafer-scale objects represent an alternative type of synthetic chiral matter consisting of ordered quantum wires whose macroscopic properties are governed by nanoscopic electronic signatures and can be used to explore chiral phenomena and develop chiral photonic and optoelectronic devices.

Ru nanoclusters coupling with hierarchical phosphorus and oxygen dual-doped carbon nanotube architectures for effective hydrogen evolution reaction

The construction of an effective catalyst for hydrogen evolution reaction (HER) is a top priority. Herein, we demonstrate ruthenium (Ru) nanoclusters coupled with phosphorus and oxygen dual-doped carbon nanotube (CNT) architecture (Ru-POCA). The increased hydrophilicity and negatively charged surface of CNTs can strongly trap Ru ions. The hierarchical structure is favorable of providing abundant pathways and exposing more active sites for HER. Due to the synergistic effect of the hierarchical structure and modified surface chemistry, Ru-POCA exhibits excellent catalytic HER activity. The overpotential is 22 and 40 mV with a Tafel slope of 28.0 and 27.1 mV dec−1 in 1 M KOH and 0.5 M H2SO4 at 10 mA cm−2. Moreover, Ru-POCA processes good catalytic stability in both acidic and alkaline electrolytes, while the boosted catalytic HER activity is fundamentally studied by density functional theory calculation. This work provides a rational approach to constructing hierarchically structured Ru-CNTs-based catalysts for hydrogen evolution reaction.

Carbon and Carbon/Metal Hybrid Structures Enabled by Ultrafast Heating Methods

High‐temperature thermal treatment is a standard step in synthesis of many materials. Recently, ultrafast heating methods, such as Joule heating, laser, light, or microwave irradiations, have been used to create novel carbon materials and carbon/metal hybrid structures, demonstrating unique and often superior properties compared with those synthesized by conventional heating methods. They have shown promising application potentials in catalysis, batteries, supercapacitors, fuel cells, sensors, implants, actuators, lighting devices, and waste recycling. Herein, recent findings in creating novel carbon and carbon/metal hybrid structures by ultrafast heating methods are reviewed. The most frequently used ultrafast heating methods, their advantages, and their limitations are first described. Then, different carbon structures created by these methods, including graphene, reduced graphene oxide, hard carbon, carbon nanotube architectures, and other carbon hybrids, are summarized. Next, novel carbon/metal hybrid structures are reviewed, including carbon‐supported nanoparticles of monometals, metal alloys, metal composites, high‐entropy alloys, and single‐atom catalysts. Heating methods, critical precursors used, synthesis parameters affecting material structures, and mechanistic understanding of their unique synthesis processes are focused on. The essential properties of these novel structures and their applications are also summarized. Finally, knowledge gaps and technical challenges in using these methods for scalable material production are discussed.

RuCo alloys anchoring on hierarchical oxidized CNT architectures with boosted catalytic activity for water splitting

Exploring cost-competitive electrocatalysts with enhanced catalytic activity is important for producing clean energy via water-splitting, including hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Herein, RuCo alloy nanoparticles uniformly anchoring on oxidized carbon nanotube architectures (RuCo-OCA) have been constructed via ozonation, freeze-drying and thermal activation methods. RuCo-OCA exhibits excellent catalytic HER and OER performance. To reach a current density of 10 mA cm−2, RuCo-OCA requires low overpotential of 42 and 258 mV for HER and OER with the Tafel slope of 32.8 and 65.9 mV dec−1 in 1 M KOH, respectively. Meanwhile, RuCo-OCA shows negligible change of current density after chronoamperometry test for 10 h with low charge transfer resistance of 15.9 and 96 Ω for HER and OER. Furthermore, the symmetric RuCu-OCA||RuCu-OCA electrolyzer shows superior water-spitting performance to Pt/C/||RuO2 electrolyzer with a potential of 1.56 V at 10 mA cm−2. The excellent electrocatalytic performance of RuCo-OCA can be attributed to the hierarchical structure of oxidized CNT aerogel for the improved reaction kinetics and the formation of RuCo alloys with the modified electronic structure and adsorbability of intermediates. Meanwhile, the boosted active sites have been probed by density function theory. The coupling of RuCo alloys with conductive oxidized CNT aerogel can provide a new strategy to further expedite the electrocatalytic efficiency and activity of catalysts for water splitting.

Three-dimensional functional carbon nanotube architecture as a highly efficient and active indirect catalyst for degradation of 4-chlorophenol

Electro-Fenton (EF) is a promising and green technology for environmental remediation. However, traditional EF often suffers from iron sludge production, leading to poor pH adaptation and secondary pollution. In this work, we synthesized a three-dimensional (3D) carbon nanotube architecture containing nitrogen and oxygen heteroatoms on carbon fibre paper (3D-NOCNTs/CFP) as an indirect catalyst for a metal-free EF process for the removal of 4-chlorophenol (4-CP). The dependence of the content and the type of the functional groups in the carbon plane on the pyrolysis temperature was studied through XPS measurements. This binder-free electrode has been identified as a bifunctional catalyst that can catalyze a high H2O2 yield process and a subsequent in-situ generation of ⋅OH via an O2 reduction reaction (ORR). Thus the generated ⋅OH radicals can directly participate in the oxidative degradation of 4-CP and the utilization of iron can be avoided in the EF process. The optimized electrode could remove 99.3 % 4-CP in 120 min and exhibits a broad suitability upon pH, an excellent capability, and a prominent stability for the degradation of 4-CP. The mechanism was explained by density function theory (DFT) calculations and the controlled experiments. Such a metal-free EF process features a promising green technology for the oxidative degradation of organic pollutants.

Unique CNTs-chained Li4Ti5O12 nanoparticles as excellent high rate anode materials for Li-ion capacitors

Composite anode materials with a unique architecture of carbon nanotubes (CNTs)-chained spinel lithium titanate (Li4Ti5O12, LTO) nanoparticles are prepared for lithium ion capacitors (LICs). The CNTs networks derived from commercial conductive slurry not only bring out a steric hindrance effect to restrict the growth of Li4Ti5O12 particles but greatly enhance the electronic conductivity of the CNTs/LTO composites, both have contributed to the excellent rate capability and cycle stability. The capacity retention at 30 C (1 C = 175 mA g−1) is as high as 89.7% of that at 0.2 C with a CNTs content of 11 wt%. Meanwhile, there is not any capacity degradation after 500 cycles at 5 C. The LIC assembled with activated carbon (AC) cathode and such a CNTs/LTO composite anode displays excellent energy storage properties, including a high energy density of 35 Wh kg−1 at 7434 W kg−1, and a high capacity retention of 87.8% after 2200 cycles at 1 A g−1. These electrochemical performances outperform the reported data achieved on other LTO anode-based LICs. Considering the facile and scalable preparation process proposed herein, the CNTs/LTO composites can be very potential anode materials for hybrid capacitors towards high power-energy outputs.

Multi-functional Co3O4 embedded carbon nanotube architecture for oxygen evolution reaction and benzoin oxidation

Multifunctional hybrid nanostructures continue to attract great attention since they offer multiple applications from specific architectures. This paper proposes a simple solid-state protocol to fabricate nitrogen doped carbon nanotubes (CNT) and cobalt oxide embedded with CNT (Co3O4-CNT) for oxygen evolution reaction and benzoin oxidation. The proximity between cobalt and CNT sites amplifies oxygen evolution reaction (OER) and conductivity. Embedded Co3O4-CNT form an integrated architecture, providing efficient and rapid electron/ion transfer rate. Fabricated Co3O4-CNT electrocatalyst exhibited OER activity of 317 mV, which was better than that of pristine Co3O4 electrocatalyst (340 mV) at 10 mA cm−2 current density. Impressively, Co3O4-CNT delivers stable response at low and high currents as well as excellent durability over 25 h. Experimental and analytical results verified that maximal electrocatalytic OER activity can be realized by combining a conductive CNT network and catalytically active sites could be further enhanced by nitrogen doping. Additionally, the Co3O4 embedded with CNT upon exploration as a milder, inexpensive, and eco-friendlier catalyst for air oxidation of 2-hydroxy-1,2-bis(3-methoxyphenyl)ethan-1-one (benzoin), produces 3,3′-dimethoxybenzil in high yield (96%). The Co3O4-CNT was further evaluated the catalytic activities after repetitive recycling processes and demonstrated the high yields without the significant loss in the catalytic activity.

Frontispiece: Covalently Aligned Molybdenum Disulfide–Carbon Nanotubes Heteroarchitecture for High‐Performance Electrochemical Capacitors

Energy Storage In their Research Article on page 21295, Guan Wu, Jianhong Xu, Ningzhong Bao et al. report a covalently aligned MoS2–carbon nanotube architecture for high-performance electrochemical capacitors.

The Simultaneously Voltammetric Determination of Spinosad and Chlorantraniliprole Pesticides by Carbazole-Ferrocene Functionalized Carbon Nanotube Architecture

In this study, the carbon nanotube surface was modified by a novel compound bearing ferrocene as electroactive and carbazole as electropolymerizable groups by Click reaction for voltammetric determination of chlorantraniliprole and spinosad pesticides. An asymmetric ferrocene-carbazole compound (5) was synthesized and attached to the carbon nanotube surface (CNT) by the Click reaction for the preparation of the novel hybrid CNT material bearing ferrocene-carbazole groups (CFC). This hybrid material displayed great chemical stability and excellent sensitivity against chlorantraniliprole and spinosad pesticides. The linear ranges of chlorantraniliprole and spinosad were found 0.025–80.0 μM and 0.10–15.0 μM , respectively. The detection limits were 26 nM for chlorantraniliprole and 88 nM for spinosad. HPLC technique as a standard determination method was performed for accuracy of the voltammetric determination method in soil, apple and tomato samples. Compared with the chromatographic detection strategy, the method developed in this work is simple and easy to implement, which not only provides good selectivity and sensitivity for the detection of chlorantraniliprole and spinosad pesticides in real samples, but also opens up new perspectives for electrochemical sensing.

Hierarchical Architectures Based on Ru Nanoparticles/Oxygen-Rich-Carbon Nanotubes for Efficient Hydrogen Evolution.

Highly active and durable electrocatalysts are essential for producing hydrogen fuel through the hydrogen evolution reaction (HER). Here, a uniform deposition of Ru nanoparticles strongly interacting with oxygen-rich carbon nanotube architectures (Ru-OCNT) through ozonation and hydrothermal approaches has been designed. The hierarchical structure of Ru-OCNT is made by self-assembly of oxygen functionalities of OCNT. Ru nanoparticles interact strongly with OCNT at the Ru/OCNT interface to give excellent catalytic activity and stability of the Ru-OCNT, as further confirmed by density functional theory. Owing to the hierarchical structure and adjusted surface chemistry, Ru-OCNT has an overpotential of 34 mV at 10 mA cm-2 with a Tafel slope of 27.8 mV dec-1 in 1 M KOH, and an overpotential of 55 mV with Tafel slope of 33 mV dec-1 in 0.5 M H2 SO4 . The smaller Tafel slope of Ru-OCNT than Ru-CNT and commercial Pt/C in both alkaline and acidic electrolytes indicates high catalytic activity and fast charge transfer kinetics. The as-proposed chemistry provides the rational design of hierarchically structured CNT/nanoparticle electrocatalysts for HER to produce hydrogen fuel.

Synergistic nanoarchitecture of mesoporous carbon and carbon nanotubes for lithium\u2013oxygen batteries

A rechargeable lithium–oxygen battery (LOB) operates via the electrochemical formation and decomposition of solid-state Li2O2 on the cathode. The rational design of the cathode nanoarchitectures is thus required to realize high-energy-density and long-cycling LOBs. Here, we propose a cathode nanoarchitecture for LOBs, which is composed of mesoporous carbon (MPC) integrated with carbon nanotubes (CNTs). The proposed design has the advantages of the two components. MPC provides sufficient active sites for the electrochemical reactions and free space for Li2O2 storage, while CNT forests serve as conductive pathways for electron and offer additional reaction sites. Results show that the synergistic architecture of MPC and CNTs leads to improvements in the capacity (~ 18,400 mAh g− 1), rate capability, and cyclability (~ 200 cycles) of the CNT-integrated MPC cathode in comparison with MPC.

Engineering of Microcage Carbon Nanotube Architectures with Decoupled Multimodal Porosity and Amplified Catalytic Performance.

New approaches for the engineering of the 3D microstructure, pore modality, and chemical functionality of hierarchically porous nanocarbon assemblies are key to develop the next generation of functional aerogel and membrane materials. Here, interfacially driven assembly of carbon nanotubes (CNT) is exploited to fabricate structurally directed aerogels with highly controlled internal architectures, composed of pseudo-monolayer, CNT microcages. CNT Pickering emulsions enable engineering at fundamentally different length scales, whereby the microporosity, mesoporosity, and macroporosity are decoupled and individually controlled through CNT type, CNT number density, and process energy, respectively. In addition, metal nanocatalysts (Cu, Pd, and Ru) are embedded within the architectures through an elegant sublimation and shock-decomposition approach; introducing the first approach that enables through-volume functionalization of intricate, pre-designed aerogels without microstructural degradation. Catalytic structure-function relationships are explored in a pharma-important amidation reaction; providing insights on how the engineered frameworks enhance catalyst activity. A sophisticated array of advanced tomographic, spectroscopic, and microscopic techniques reveal an intricate 3D assembly of CNT building-blocks and their influence on the functional properties of the enhanced nanocatalysts. These advances set a basis to modulate structure and chemistry of functional aerogel materials independently in a controlled fashion for a variety of applications, including energy conversion and storage, smart electronics, and (electro)catalysis.

Confined Tuning Hierarchical Core–Shell Architectures of Multi-Walled Carbon Nanotubes Wrapped by MnO2 Sheets with High-Performance Microwave Absorption

Hierarchical core–shell architectures with multi-walled carbon nanotubes as core and MnO2 sheets shaped in an array mode as shell (MWCNTs@MnO2) were successfully synthesized via a simple wet chemical method. X-ray diffraction patterns and X-ray photoelectron spectroscopy analysis revealed that the composites were successfully prepared. Morphological characterizations were made by scanning electron microscopy and transmission electron microscopy. Vector network analyzer was employed to investigate the electromagnetic parameters of the composites. A possible attenuation mechanism was discussed, and the high-performance microwave absorption properties were attributed to the porous microstructure, polarization effect, dielectric loss and the synergistic action between MWCNTs and [Formula: see text]-MnO2. A minimum reflection loss (RL) of [Formula: see text]50.6[Formula: see text]dB was achieved at a thickness of 1.4[Formula: see text]mm, and an effective absorption bandwidth ([Formula: see text][Formula: see text]dB) covered 4.2[Formula: see text]GHz (from 13.8[Formula: see text]GHz to 18[Formula: see text]GHz) at a thickness of 1.3[Formula: see text]mm. Therefore, these results suggested that the MWCNTs@[Formula: see text]-MnO2 composites can be an excellent candidate for microwave absorption materials.

Free-standing three-dimensional carbon nanotubes/amorphous MnO2 cathodes for aqueous zinc-ion batteries with superior rate performance

Rechargeable aqueous zinc-ion batteries (ZIBs) have gained particular attention in recent years because of their low cost and high safety. However, most of their performances are limited by unsatisfied architecture of cathodes. In addition, the degree of crystallinity of active materials also plays an important role in their electrochemical performance. Herein, we fabricated free-standing composite films with amorphous MnO2 (a-MnO2) and carbon nanotubes (CNTs) by an in situ deposition method. The free-standing a-MnO2@CNTs composite films can directly serve as the cathodes of ZIBs without binder and current collector. The resultant cathode exhibits highly electrical conductivity and fast ion-diffusion because of the corporation of interconnected three-dimensional CNTs architectures and ultra-thin a-MnO2 nanosheets. As a result, the resultant ZIB displays high energy and power density, as well as stable cycling performance. Moreover, based on composite films, flexible ZIBs were constructed, and they could remain stable electrochemical performance under different bending states, which have great potential for the application in flexible and wearable electronics.

Synthesis and growth mechanism of bamboo like N-doped CNT/Graphene nanostructure incorporated with hybrid metal nanoparticles for overall water splitting

Herein, we report a melamine and metal-salt based pyrolysis technique for synthesizing metal encapsulated N-doped carbon nanotube (CNTs) in form of bamboo-like CNTs and multi walled CNTs (MWCNT). Sulfur doping during synthesis greatly influenced the physio-chemical properties of the material formed. X-ray diffraction (XRD) analysis confirms NiCo alloy (NiCo@CNT) formation that transformed into a hybrid NiCo/Co3Ni6S8/Co3O4 nanocomposite (NiCoS@CNT) in presence of sulfur. A detailed study was conducted on the mechanism of the formation of metal-encapsulated N-doped CNT structures from the polymerization of melamine. The unique NiCoS@CNT structure renders high specific surface area (232.2 m2/g), large pore volume (0.92 cm2/g), and high lattice defect with abundant oxygen vacancies resulting in excellent performance for OER and HER in alkaline medium. The hybrid catalyst requires over-potentials of 198 mV and 295 mV to deliver a current-density of 10 mAcm−2, respectively for HER and OER. A cell voltage of only 1.53 V was required to deliver a long-term stable current-density of 10 mAcm−2 for water splitting when NiCoS@CNT was used as both anode and cathode. Superior performance of NiCoS@CNT could be ascribed to high surface area, abundant active sites, fast charge-transfer rate, high pyridinic-N content and the presence of highly conductive CNT architecture.

Biomimetic 3D Fe/CeO2 decorated N-doped carbon nanotubes architectures for high-performance lithium-sulfur batteries

lithium-sulfur (Li-S) batteries have been regarded as one of the most promising systems for next-generation rechargeable batteries owing to their high energy density and low cost. However, the “Shuttle effect” of polysulfides and low sulfur utilization upon cycling are still hindering their practical applications. Herein, we report a series of marine organism-like hollow nanoarchitecture consisting of nitrogen (N) doped 1D carbon nanotubes (CNTs), which were derived from binary Fe/Ce Prussian blue analogs (PBAs) and melamine. This nitrogen-doped 3D hollow scaffold offers large inner space (ф ≈ 200 nm) and sufficient electric conducting for insulating sulfur and provides adsorption sites for immobilizing polysulphides. The introduced double metal species enable strong chemical adsorption toward polysulfides and could facilitate the redox reaction between sulfur and polysulphides. When applied in Li-S batteries, the as-prepared materials showed a high capacity of 1241 mAh g−1 and a stable cycling performance (1003 mAh g−1 after 100 cycles) at a current density of 0.2 C. The enhancement of electrochemical activity could be attributed to the 3D hollow architecture of the hybrid, in which the nitrogen-doping generates defects and active sites for improved interfacial adsorption. This work could inspire developing biomimetic architectures for high-performance Li-S batteries.

The composite of 3D carbon nanotube architecture and NiCo double hydroxide for high-performance supercapacitor

A three-dimensional porous architecture of multiwalled carbon nanotubes (MWCNT), denoted as 3D-MWCNT, was fabricated on Ni foam (NiF) via a simple hydrothermal method. The 3D-MWCNT, constructed with interlaced carbon nanotubes, is a highly porous network structure and is subsequently used as the electrical conductive platform for the fabrication of positive electrode of faradaic supercapacitor. The obtained positive electrode was denoted as NiCo-DH/3D-MWCNT/NiF, which was produced via the electrodeposition of NiCo double hydroxide (NiCo-DH) on 3D-MWCNT/NiF. The 3D-MWCNT platform not only endows NiCo-DH/3D-MWCNT/NiF large surface area but also enhanced electrical conductivity. NiCo-DH/3D-MWCNT/NiF displays an ultrahigh areal capacity of 6.142 C cm−2 at 60 mA cm−2 and 96.31% capacity retention after 2000 cycles at 60 mA cm−2. An asymmetrical supercapacitor (ASC) is also assembled with NiCo-DH/3D-MWCNT/NiF as the positive electrode and activated carbon (AC) as the negative electrode. The ASC exhibits a prominent specific energy of 30.99 Wh kg−1 at a high specific power of 427.46 W kg−1. It is especially worth noting that the ASC exhibited remarkable capacity retention of 84.7% even after 2000 galvanostatic charge–discharge cycles at a high current density of 30 mA cm−2.

Improving comprehensive performance of copper matrix composite by spray pyrolysis fabricated CNT/W reinforcement

Abstract As a hybrid reinforcement, interconnected architecture of carbon nanotubes (CNT)/Tungsten (W) composite powder was designed and fabricated by spraying pyrolysis (SP) method. Subsequently, CNT-W/copper (Cu) composites were fabricated successfully by low energy ball milling (LEBM) and spark plasma sintering (SPS). The electronic conductivity, mechanical properties, micro-morphology and interface microstructure of CNT-W/Cu composites were evaluated and characterized. The results revealed that CNT with attached W were dispersed uniformly in the Cu matrix and W particles played a “pinning” role of the CNT. The 0.6 wt%CNT-W sample exhibited ultimate tensile strength 226 MPa and the elongation 33%, which were 14% and 83% higher than that of pure Cu, respectively. Besides, the 0.8 wt% CNT-W sample exhibited electrical conductivity 92.3%IACS, which is very close to that of Cu matrix (92.6%IACS). Finally, the strengthening and electric conductivity mechanisms of CNT-W in Cu matrix were considered. This study inspires a new way of synergistically reinforced metal matrix composites.