Development, Electrochemical Characterization, and Statistical Optimization of a Low-Cost Membraneless Tubular Flow-By Alkaline Electrolyzer for Green Hydrogen Production.

Bruno Augusto Cabral Roque, Hugo Morais Meira, Valdemir Alexandre Dos Santos, Mohand Benachour, Leonie Asfora Sarubbo

Abstract read

In one paragraph

Article in Molecules (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it

0cells of the map it votes in

0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

5 authors.

Bruno Augusto Cabral RoqueDepartment of Chemical Engineering, Federal University of Pernambuco (UFPE), Av. dos Economistas, s/n, Recife 50740-590, Brazil.ORCID 0000-0002-7517-8896

Hugo Morais MeiraAdvanced Institute of Technology and Innovation (IATI), Rua Potira, 31, Recife 50751-310, Brazil.ORCID 0000-0001-8886-4855

Valdemir Alexandre Dos SantosAdvanced Institute of Technology and Innovation (IATI), Rua Potira, 31, Recife 50751-310, Brazil.

Mohand BenachourDepartment of Chemical Engineering, Federal University of Pernambuco (UFPE), Av. dos Economistas, s/n, Recife 50740-590, Brazil.

Leonie Asfora SarubboDepartment of Chemical Engineering, Federal University of Pernambuco (UFPE), Av. dos Economistas, s/n, Recife 50740-590, Brazil.ORCID 0000-0002-4746-0560

Funding

National Council for Scientific and Technological Development No. 307435/2023-7

6 · The paper itself

Abstract

Hydrogen production by alkaline water electrolysis is a promising pathway for sustainable energy systems; however, conventional electrolyzers rely on membranes or diaphragms that increase cost, electrical resistance, and maintenance requirements. This study reports the development and experimental evaluation of a low-cost, membrane-less, flow-by tubular alkaline electrolyzer integrated with a dedicated gas-liquid separation and volumetric gas-measurement system. The electrolyzer was designed, constructed, experimentally validated, and electrochemically characterized using polarization curves. The effects of KOH concentration (0.50-2.00 mol L

Indexed as

bubble removaldesign of experimentsenergy efficiencygas–liquid separationhydrodynamic optimizationpolarization curvesresponse surface methodology

Identifiers

PMID42588536

DOI10.3390/molecules31152688

PMCPMC13467813

What OpenQuestion holds

Textmetadata

Read underepoch 390

Registered trials

None linked

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.