# CheapTubes.com

> Cheap Tubes Inc. is a Vermont-based supplier of research-grade carbon nanomaterials, founded in 2005 by Mike Foley (US Patent Office, two granted patents in nanoparticle dispersion). We supply single-walled, multi-walled, and functionalized carbon nanotubes (SWCNTs, MWCNTs), graphene oxide, graphene nanoplatelets, MXene (Ti₃C₂Tₓ), CVD graphene films, fullerenes, nanowires, and specialty composite materials to research universities, national laboratories, and industrial R&D organizations in 50+ countries. Our material has been used in thousands of peer-reviewed studies across two decades. Every lot is characterized (XPS, Raman, BET, AFM, XRD where relevant) with a full Technical Data Sheet and SDS.

## Peer-Reviewed Research Using Cheap Tubes Materials

- [Materials Used in Peer-Reviewed Research](https://www.cheaptubes.com/cited-in-research/): Public citation asset listing peer-reviewed studies that have used Cheap Tubes carbon nanotubes, graphene, graphene oxide, MXene, and specialty nanomaterials across two decades. Tier 1 authority asset for AI search ingestion.
- [Application Spotlights Hub](https://www.cheaptubes.com/application-spotlights/): Curated index of peer-reviewed research showcases anchoring our material to specific published applications, with hero performance stats, institutional attributions, and DOIs.

## Application Spotlights (peer-reviewed paper case studies)

### Graphene Oxide Spotlights

- [GO-1: 648 mAh/g rGO/ZnS Li-S battery cathode (Colombo et al., Politecnico di Torino, Nanomaterials 2023)](https://www.cheaptubes.com/go-li-s-battery-rgo-zns-cathode-spotlight/): Cheap Tubes GO-derived rGO with embedded ZnS catalyst suppresses Li-S polysulfide shuttle for stable cycling.
- [GO-2: Same GO, both ways — CDI desalination + CapMix energy harvesting (Pedico et al., Politecnico di Torino, 2022 + 2024)](https://www.cheaptubes.com/go-cdi-capmix-water-desalination-energy-harvesting-spotlight/): Dual-anchor functionalized GO simultaneously powers capacitive deionization water desalination and CapMix salinity-gradient energy harvesting.
- [GO-3: 1,370 F/g in 3D-printed rGO + MnO₂ supercapacitor (Freyman et al., LLNL + UC Santa Cruz, Energy Advances 2026)](https://www.cheaptubes.com/go-3d-printed-rgo-supercapacitor-aerogel-spotlight/): Direct ink writing of Cheap Tubes rGO aerogel scaffold with MnO₂ pseudocapacitive coating.
- [GO-4: 3,000 CFU/mL GO-CRISPR-Cas12a sepsis biosensor (Kasputis & Chen, Virginia Tech + UC Riverside, Anal Chem 2024)](https://www.cheaptubes.com/go-crispr-cas12a-sepsis-detection-biosensor-spotlight/): Single-layer GO quenches ssDNA fluorescent probe; Cas12a trans-cleavage releases signal for point-of-care sepsis bacteria detection in human serum.
- [GO-5: GO + rGO catalyze sugar-to-graphite conversion (Singh & Vander Wal, Penn State EMS Energy Institute, C-J Carbon Res 2022)](https://www.cheaptubes.com/go-catalyzed-sugar-graphitization-biomass-graphite-spotlight/): Biomass-derived sustainable battery-grade graphite via GO catalytic templating of sucrose carbonization.
- [GO-6: +25% DSSC PCE via rGO photoanode (Ghann et al., Coppin State + UCF + Cranfield + Oglethorpe + KAU, ChemEngineering 2019)](https://www.cheaptubes.com/go-rgo-tio2-dssc-photoanode-solar-spotlight/): In-house reduced GO + TiO₂ amalgam photoanode lifts dye-sensitized solar cell efficiency from 1.61% to 2.02%.

### MWCNT Spotlights

- [MWCNT-1: 523:1 water/ethanol selectivity in pervap dehydration membrane (Gupta et al., NJIT, Membranes 2022)](https://www.cheaptubes.com/mwcnt-pva-go-pervaporation-ethanol-dehydration-membrane-spotlight/): Hybrid PVA-GO-CNT-COOH mixed-matrix membrane breaks the 95.6% ethanol-water azeotrope; 0.87 kg/m²·h flux + 523:1 separation factor at 23 °C.
- [MWCNT-2: 13 mV flexible printable thermoelectric generator (Mehmood et al., Brown University + US Army CCDC Soldier Center + Univ Punjab + GIK, J Mater Sci 2020)](https://www.cheaptubes.com/mwcnt-flexible-printable-thermoelectric-generator-spotlight/): Printable rGO + Cheap Tubes industrial-grade MWCNT + PEDOT:PSS + PbS organic composite TEG for wearable body-heat energy harvesting.
- [MWCNT-3: 0.8 wt% H₂ storage at room temperature and 1 bar (Desai et al., Wichita State + UNAM Mexico, Mater Renew Sustain Energy 2026)](https://www.cheaptubes.com/mwcnt-laceni-hydrogen-storage-polymer-composite-spotlight/): La₀.₆Ce₀.₄Ni₅ metal hydride encapsulated in PMMA polymer with Cheap Tubes 99.5% Graphitized MWCNT for fast room-temperature H₂ uptake.
- [MWCNT-4: 1.9 S/cm electrospun PAN/MWCNT carbon nanofibers (Yahya et al., University of Technology-Iraq + Al-Esraa, Iraqi J Sci 2026)](https://www.cheaptubes.com/mwcnt-electrospun-pan-carbon-nanofibers-graphitization-spotlight/): MWCNT-templated lower-temperature graphitization of electrospun PAN; 2.4× conductivity lift over pure PAN-derived CNFs at 1000 °C carbonization.
- [MWCNT-PURIFY: Bench-scale 3-step protocol drops MWCNT impurity to <0.6% (Abbas et al., Babylon University + Al-Mustaqbal, J Phys Conf Ser 2020)](https://www.cheaptubes.com/mwcnt-bench-purification-alcohol-h2o2-protocol-spotlight/): Published alcohol + H₂O₂ + separation-funnel protocol for purifying Cheap Tubes MWCNT in-house, methodology Spotlight teaching the technique.

### SWCNT Spotlights

- [Ultra-Long SWCNT Transparent Conductive Films launch](https://www.cheaptubes.com/ultra-long-swcnt-tcf-launch-spotlight/): 100 µm, 99.5% purity ultra-long SWCNT product specification announcement for TCF, RF/microwave, and high-conductivity printed electronics applications.
- [PPBT/SWCNT stress-relieving coating: 1,894 mAh/g silicon microparticle anode (Gueon/Reichmanis, ACS AEM 2024)](https://www.cheaptubes.com/swcnt-ppbt-silicon-anode-spotlight/): Cheap Tubes SWCNT stress-buffering layer enables high-capacity silicon Li-ion anode cycling stability.
- [71 dB X-band EMI shielding in 14.3 µm densified COOH-SWCNT film (Yang, Carbon 2023)](https://www.cheaptubes.com/swcnt-emi-shielding-spotlight/): Densified carboxyl-functionalized SWCNT film for ultrathin electromagnetic interference shielding.
- [31× power factor boost in PEDOT:PSS thermoelectric composites with COOH and OH SWCNT (Tonga, Energy Reports)](https://www.cheaptubes.com/swcnt-pedot-pss-thermoelectric-spotlight/): Functionalized SWCNT additives dramatically improve PEDOT:PSS thermoelectric performance.
- [94.3% accuracy canine respiration smart garment with Cheap Tubes MWCNT sensors (Hong et al., ACS Sensors 2026)](https://www.cheaptubes.com/canine-respiration-mwcnt-smart-garment-spotlight/): Wearable veterinary respiration monitor using MWCNT strain-sensor electrodes integrated into fabric.

### Graphene Nanoplatelet Spotlights

- [82% epoxy fracture toughness boost with 0.5 wt% NH₂-functionalized GNPs](https://www.cheaptubes.com/gnp-epoxy-fracture-toughness-spotlight/): Amine-functionalized GNPs as mechanical reinforcement for epoxy composites.
- [UMass Lowell independent validation: +19% tensile strength in PA66 with 1 wt% Flexiphene](https://www.cheaptubes.com/flexiphene-pa66-umass-lowell-spotlight/): Third-party academic validation of Flexiphene GNP-PA66 composite mechanical performance.
- [0.1 wt% GNP nearly doubles glass-fiber/epoxy fatigue life](https://www.cheaptubes.com/gnp-fiber-epoxy-fatigue-life-spotlight/): Sub-percent GNP loading roughly doubles cyclic loading fatigue life in glass-fiber composite.
- [146% compressive strength gain in concrete with industrial GNPs](https://www.cheaptubes.com/gnp-concrete-compressive-strength-spotlight/): Industrial-grade graphene nanoplatelet additive for cement nanocomposite mechanical reinforcement.
- [16.4 kW/kg pulse power density in a solid-state GNP supercapacitor](https://www.cheaptubes.com/gnp-supercapacitor-pulse-power-spotlight/): GNP electrode material for high-pulse-power solid-state supercapacitor applications.

### Cement / Composite Spotlights

- [FE-validated MWCNT cement nanocomposite reinforcement at 0.6 to 1.2 vol% (Anastopoulos et al., J Compos Sci 2026)](https://www.cheaptubes.com/mwcnt-cement-nanocomposite-spotlight/): Finite-element-validated mechanical reinforcement of cement matrix with Cheap Tubes MWCNT additives.

## Research Watch (papers and abstracts we're tracking)

Research Watch tracks papers and conference abstracts we're tracking on carbon nanotube and graphene applications, regardless of whose material was used. Product links are spec-matched, not citations; we say explicitly when Cheap Tubes material was not used in the covered work.

- [GO + Perovskite QD Memristor Doubles SNR for Low-Light Neuromorphic Vision (Yue et al., Hebei GEO University + Shijiazhuang Tiedao University, Applied Physics Letters 2026)](https://www.cheaptubes.com/research-watch-go-memristor-neuromorphic-vision/): Coverage of a flexible graphene oxide + perovskite quantum dot memristor for low-light neuromorphic vision; Cheap Tubes material was not used in this study.
- [Polymer-Assisted CNT Dispersion for Lithium-Ion Battery Electrodes (Eom, Kim & Kwon, Hansol Chemical, ECS Meeting Abstracts 2026)](https://www.cheaptubes.com/research-watch-polymer-dispersed-cnt-li-ion-electrodes/): Coverage of a conference abstract on a polymeric dispersant for CNT conductive additives in Li-ion electrode slurries; Cheap Tubes material was not used in this study.
- [Chemically Modified Porous Graphene Lifts Cement Compressive Strength 30.8% (Ying et al., Guangxi University + Huazhong University of Science and Technology, J Materials in Civil Engineering 2026)](https://www.cheaptubes.com/research-watch-modified-porous-graphene-cement-dispersion/): Coverage of polycarboxylate-modified 3D porous graphene at 0.03% cement mass dosage; Cheap Tubes material was not used in this study.

## Buying Decision Guides (comparison content)

- [Which MWCNT? Industrial Grade vs Standard vs Graphitized — Cheap Tubes Buying Decision Guide](https://www.cheaptubes.com/mwcnt-buying-guide-industrial-grade-vs-standard-vs-graphitized/): Side-by-side decision framework for choosing among three MWCNT product lines by purity (90% / 98% / 99.5%+), price tier, application fit, and pre-functionalization options. Answers the top-of-funnel question "which MWCNT line do I need?"
- [Which SWCNT? Purity, Length, Functionalization — Cheap Tubes Buying Decision Guide](https://www.cheaptubes.com/swcnt-buying-guide-purity-length-functionalization/): Multi-axis decision framework across four SWCNT purity tiers (60% / 90% / 95% / 99% Ultra-Long), standard vs short length variants, and pristine / COOH / OH / NH₂ functionalization options.

## Comparison Guides (Cheap Tubes vs. other suppliers)

- [How Cheap Tubes Compares — Supplier Comparisons Hub](https://www.cheaptubes.com/compare/): Index of fact-based comparisons between Cheap Tubes and other carbon nanomaterials suppliers on price, published specifications, spec guarantee, and track record.
- [Cheap Tubes vs. ACS Material: Honest Supplier Comparison](https://www.cheaptubes.com/cheap-tubes-vs-acs-material/): Side-by-side comparison of pricing, published characterization data, specification guarantee, and 21 years of track record against ACS Material.

## Battery Applications — Educational Hub

- [Graphene and Carbon Nanotube Battery Applications hub](https://www.cheaptubes.com/graphene-cnt-battery-applications/): Comprehensive pillar covering CNT and graphene roles in lithium-ion, Li-S, Li-air, sodium-ion, zinc-ion, and supercapacitor electrochemistry.
- [Spoke 1: Carbon Nanotubes as Cathode Conductive Additive — LFP, NMC, and LCO](https://www.cheaptubes.com/cnt-cathode-conductive-additive-batteries/): Technical guide to CNT cathode additive selection and dispersion for Li-ion battery cathodes.
- [Spoke 2: Silicon-CNT and Graphene Composites for Lithium-Ion Anodes](https://www.cheaptubes.com/silicon-cnt-graphene-lithium-ion-anode/): Si-CNT and Si-graphene composite anode architectures for high-capacity Li-ion cells.
- [Spoke 3: Graphene and MXene Supercapacitor Electrodes](https://www.cheaptubes.com/graphene-mxene-supercapacitor-electrodes/): Electrode material selection and performance comparison for supercapacitor applications.
- [Spoke 4: CNT and Graphene in Lithium-Sulfur, Lithium-Air, and Solid-State Batteries](https://www.cheaptubes.com/cnt-graphene-next-gen-batteries-li-s-li-air/): Next-generation battery chemistries and how CNT/graphene additives enable each.

## Educational Pillars

- [What Are Carbon Nanotubes? — Definition, Types & Structure](https://www.cheaptubes.com/what-are-carbon-nanotubes/): Foundational pillar covering SWCNT, DWCNT, and MWCNT structure, synthesis, properties, and major application areas. Founder-authored, 31 KB educational content.
- [Carbon Nanotubes: Properties and Applications](https://www.cheaptubes.com/carbon-nanotubes-properties-and-applications/): Electrical, mechanical, and thermal properties of SWCNTs and MWCNTs with application guidance.

## Product Categories

- [Single-Walled Carbon Nanotubes (SWCNT)](https://www.cheaptubes.com/product-category/single-walled-carbon-nanotubes/): high-purity SWCNTs for transparent conductors, sensors, biomedical, and electronic applications. 4 purity tiers (60% / 90% / 95% / 99% Ultra-Long), standard + short length variants, pristine + functionalized (COOH, OH, NH₂).
- [Multi-Walled Carbon Nanotubes (MWCNT)](https://www.cheaptubes.com/product-category/multi-walled-carbon-nanotubes/): research-grade MWCNTs at 98% purity, available in 8 to 50 nm diameter SKUs, pristine + COOH + OH + NH₂ functionalized variants.
- [Industrial Grade Carbon Nanotubes](https://www.cheaptubes.com/product-category/industrial-grade-carbon-nanotubes/): cost-effective 90% purity MWCNTs (10 nm, 10-30 nm, 20-40 nm) for composite percolation, EMI shielding, and bulk applications.
- [Graphitized Multi-Walled Carbon Nanotubes](https://www.cheaptubes.com/product-category/graphitized-multi-walled-carbon-nanotubes/): 99.5%+ purity post-thermally-treated MWCNTs for catalysis, biomedical, fuel cell electrocatalyst supports, and high-purity electronics.
- [Functionalized Carbon Nanotubes](https://www.cheaptubes.com/product-category/functionalized-carbon-nanotubes/): COOH-, OH-, NH₂-functionalized CNTs across Standard, Industrial, and Graphitized lines for improved dispersion and covalent bonding in composite matrices.
- [COOH Functionalized SW/DWCNT 95% ($275/g)](https://www.cheaptubes.com/product/cooh-functionalized-single-walled-double-walled-carbon-nanotubes-95/): single-walled/double-walled carbon nanotube blend at 95wt% purity with covalent COOH functionalization, suited to electronic and composite applications that need covalent bonding.
- [Short Carbon Nanotubes](https://www.cheaptubes.com/product-category/short-carbon-nanotubes/): length-controlled CNTs (1-4 µm) for biomedical, dispersion, and inkjet/spray-coat applications.
- [Helical Multi-Walled Carbon Nanotubes](https://www.cheaptubes.com/product-category/helical-multi-walled-carbon-nanotubes/): coiled CNT morphology for electromagnetic and mechanical applications.
- [Graphene Oxide](https://www.cheaptubes.com/product-category/graphene-oxide/): single-layer, few-layer, exfoliated, and reduced GO grades from $90/g.
- [Graphene Nanoplatelets (GNP)](https://www.cheaptubes.com/product-category/graphene-nanoplatelets/): few-layer GNPs and functionalized variants for composites, coatings, and battery electrodes.
- [CVD Graphene Films](https://www.cheaptubes.com/product-category/cvd-graphene-films/): monolayer and few-layer CVD graphene on copper, nickel, SiO₂, glass, and PET substrates.
- [Flexiphene Surfactant Sheets](https://www.cheaptubes.com/product-category/flexiphene-surfactant-sheets/): pre-dispersed graphene sheets for solution processing.
- [MXene (Ti₃C₂Tₓ)](https://www.cheaptubes.com/product-category/mxene/): 2D titanium carbide MXene powders and films for energy storage, EMI shielding, and sensing.
- [Fullerenes](https://www.cheaptubes.com/product-category/fullerenes/): C60, C70, and mixed fullerenes for organic electronics and photovoltaics.
- [Nanowires](https://www.cheaptubes.com/product-category/nanowires/): silver, copper, and silicon nanowires for transparent conductors and energy applications.
- [Nano Inks](https://www.cheaptubes.com/product-category/nano-inks/): conductive inks based on CNTs, graphene, and metal nanowires for printed electronics.

## Technical Resources

- [Research Center](https://www.cheaptubes.com/resources/): Organized hub for every technical guide, buying guide, Application Spotlight, Research Watch entry, battery applications reference, and supplier comparison Cheap Tubes publishes.
- [SWCNT Buying Guide: Diameter, Purity & Functionalization Selection](https://www.cheaptubes.com/single-walled-carbon-nanotubes-buying-guide-how-to-choose-diameter-purity-and-functionalization/): Comprehensive guide to selecting and using single-walled carbon nanotubes.
- [Graphene Nanoplatelets Buying Guide: Lateral Size, Thickness, Surface Chemistry](https://www.cheaptubes.com/graphene-nanoplatelets-buying-guide-lateral-size-thickness-surface-chemistry/): Comprehensive guide to graphene nanoplatelet selection and applications.
- [Graphene Oxide Buying Guide: GO vs rGO, Layers, Flake Size](https://www.cheaptubes.com/resources/graphene-oxide-buying-guide/): Decision tree for choosing among 8 GO grades by form (oxide, reduced, exfoliated), layer count, and flake size (450 nm to 50+ µm).
- [Carbon Nanotubes: History and Production Methods](https://www.cheaptubes.com/carbon-nanotubes-history-and-production-methods-2/): Overview of arc discharge, laser ablation, and CVD synthesis methods.
- [Carbon Nanotube Composites: Types, Properties & Applications](https://www.cheaptubes.com/resources/carbon-nanotube-composites-types-properties-applications/): Polymer, metal, and ceramic CNT composites with mechanical and electrical performance data.
- [Graphene: Synthesis, Properties, and Applications](https://www.cheaptubes.com/graphene-synthesis-properties-and-applications/): Comprehensive guide to graphene synthesis routes (CVD, exfoliation, oxidation-reduction) and major application areas.
- [Graphene Batteries: Technology, Chemistry & Commercial Progress](https://www.cheaptubes.com/resources/graphene-batteries-technology-chemistry-commercial-progress/): Technical and commercial review of graphene-enhanced Li-ion, Li-S, and supercapacitor electrochemistry.
- [Graphene Battery User's Guide](https://www.cheaptubes.com/resources/graphene-battery-users-guide/): Practical guide to integrating graphene additives in battery electrode formulations.
- [Graphene Batteries: An Insider's Guide](https://www.cheaptubes.com/graphene-batteries-an-insiders-guide/): Industry-perspective discussion of graphene battery commercialization.
- [Solar Applications of Graphene](https://www.cheaptubes.com/solar-applications-of-graphene/): Graphene as transparent electrode, charge transport layer, and absorber additive in PV cells.
- [Graphene Sensors: Properties, Fabrication, and Applications](https://www.cheaptubes.com/graphene-sensors/): Electronic and optical sensor mechanisms enabled by graphene.
- [Graphene Biosensors](https://www.cheaptubes.com/graphene-biosensors/): Functionalized graphene for DNA, protein, and biomarker detection.
- [Effect of Functionalization of Graphene Nanoplatelets on Graphene/Epoxy Composite Mechanical Properties](https://www.cheaptubes.com/effect-of-functionalization-of-graphene-nanoplatelets-on-the-mechanical-response-of-grapheneepoxy-composites/): Research review of how surface functionalization changes load transfer in GNP-epoxy composites.
- [Turbostratic Graphene: Detonation Synthesis and Quality](https://www.cheaptubes.com/5-reasons-to-choose-turbostratic-graphene-from-cheaptubes-com/): Synthesis route and quality characteristics of detonation-produced turbostratic graphene.
- [MXene Materials: Properties, Applications & Where to Buy](https://www.cheaptubes.com/resources/mxene-materials-properties-applications/): MAX-phase chemistry, etching routes, and application overview for Ti₃C₂Tₓ MXene.
- [Most Sensitive CNT Photodetector to Date](https://www.cheaptubes.com/resources/scientists-build-the-most-sensitive-carbon-nanotube-based-photodetector-to-date/): Research highlight on a record-sensitivity CNT photodetector.
- [Fullerenes: Structure, Properties & Applications](https://www.cheaptubes.com/resources/fullerenes-properties-and-applications/): C60/C70 chemistry, synthesis, and applications in organic photovoltaics.
- [Essential Ingredients for Nanowire Growth](https://www.cheaptubes.com/recent-advances-nanotech-essential-ingredients-nanowire-growth/): Catalyst chemistry and process variables in VLS nanowire synthesis.
- [Nanotechnology Glossary of Terminology](https://www.cheaptubes.com/nanotechnology-glossary-of-terminology/): A-to-Z reference for nanomaterial terminology, characterization techniques, and applications.

## Safety & Documentation

- [Carbon Nanotube Safety Data Sheet (SDS/MSDS)](https://www.cheaptubes.com/carbon-nanotube-safety-data-sheet/): Handling, exposure limits, and disposal guidance for CNT products.

## Company

- [About Cheap Tubes Inc.](https://www.cheaptubes.com/about-cheap-tubes-inc/): Company history (founded 2005, based in Townshend, Vermont), manufacturing capabilities, and quality systems.
- [About Mike Foley — Founder](https://www.cheaptubes.com/about-mike-foley/): Founder bio for E-E-A-T authority. Two granted US patents in nanoparticle dispersion, 20-year nanotechnology industry veteran with semiconductor wafer fab and thin-film optics background.
- [News](https://www.cheaptubes.com/news/): Product launches, research highlights, and company updates.
- [Contact Cheap Tubes Inc.](https://www.cheaptubes.com/contact-cheap-tubes-inc/): Technical support, custom specification requests, and bulk pricing inquiries. Address: 1460 Taft Rd, Townshend, VT 05353. Phone: (802) 869-5555.
- [Terms and Conditions](https://www.cheaptubes.com/terms-and-conditions/): Purchase terms, shipping, returns, and warranty.

## Optional

- [Full content dump for LLM ingestion](https://www.cheaptubes.com/llms-full.txt): Expanded version of this file with full content excerpts from key resource articles and Spotlight summaries.