Production of hydrogen and carbon nanotubes from methane using a multi-pass floating catalyst chemical vapour deposition reactor with process gas recycling.

Jack Peden, James Ryley, Jeronimo Terrones, Fiona Smail, James A Elliott, Alan Windle, Adam Boies

Abstract read

In one paragraph

Article in Nature energy, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it

0cells of the map it votes in

2citing papers in PubMed

–field-weighted citation impact

1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

Research on Multi-Dimensional Bionic Design of Flexible ECG Electrodes for Wearable Monitoring.Sensors (Basel, Switzerland) · 2026
Review
Sulfur-Induced Shape Compliance Modulates Fe Catalyst Agglomeration in Carbon Nanotube Growth.Nano letters · 2026
Article

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Jack PedenDepartment of Engineering, University of Cambridge, Cambridge, UK.ORCID 0009-0006-4621-2238

James RyleyQ-Flo, Kent, UK.

Jeronimo TerronesDepartment of Engineering, University of Cambridge, Cambridge, UK.

Fiona SmailDepartment of Engineering, University of Cambridge, Cambridge, UK.

James A ElliottDepartment of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK.

Alan WindleDepartment of Materials Science and Metallurgy, University of Cambridge, Cambridge, UK.

Adam BoiesDepartment of Mechanical Engineering, Stanford University, Stanford, CA USA.ORCID 0000-0003-2915-3273

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Converting natural gas into hydrogen and solid carbon materials using methane pyrolysis presents a promising opportunity to produce sustainable fuels and materials. The production of hydrogen and bulk carbon nanotubes (CNTs) via methane pyrolysis has been demonstrated independently, but concurrent production from the same reactor has remained elusive. Here we present a multi-pass floating catalyst chemical vapour deposition (FCCVD) reactor that converts methane into hydrogen and CNT aerogel. Whereas previous FCCVD CNT production consumed hydrogen, the multi-pass reactor recycles the carrier gas to eliminate the need for a hydrogen input. This results in a net output of 85 vol% hydrogen alongside CNT aerogel and a 446-fold increase in molar process efficiency. Furthermore, the demonstrated use of biogas to produce CNT aerogel enables a potential net sequestration of CO

Indexed as

Carbon capture and storageCarbon nanotubes and fullerenesChemical engineeringHydrogen energySynthesis and processing

Identifiers

PMID41623911

DOI10.1038/s41560-025-01925-3

PMCPMC12851937

What OpenQuestion holds

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LicenceCC BY

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.