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A Review of Unique Aluminum–Water Based Hydrogen Production Options

2021· review· en· W3120700781 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueEnergy & Fuels · 2021
Typereview
Languageen
FieldMaterials Science
TopicHydrogen Storage and Materials
Canadian institutionsOntario Tech University
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsHydrogen productionHydrogenAluminum oxideAluminiumSodium hydroxideHydroxideOxideChemical engineeringProduction rateYield (engineering)Materials scienceProcess engineeringChemistryInorganic chemistryMetallurgyOrganic chemistryEngineering

Abstract

fetched live from OpenAlex

This comprehensive review paper compares the different methods developed experimentally to produce hydrogen by reacting aluminum and water. The alumina oxide layer which forms on the exterior surface of aluminum inhibits the reaction from taking place. Therefore, this paper presents a variety of techniques used to eliminate the oxide layer so that the reaction can continuously take place. The review paper aims to evaluate these techniques by comparing the hydrogen yield and maximum hydrogen production rate. On the basis of the analyses conducted, it was identified that the addition of hydroxide promoters, such as NaOH and KOH, is highly beneficial. This was also evident in the various studies where yields greater than 99% are achieved. Additionally, it is determined that the addition of NaCl or KCl to ball-milled samples of aluminum can be extremely advantageous when examining the maximum hydrogen production rate. For instance, an experimental sample composed of 2% NaCl was able to achieve a maximum hydrogen production rate of 1140 mL/min. Furthermore, numerous other studies are discussed by considering their specific advantages and disadvantages.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.570
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0020.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0050.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.038
GPT teacher head0.306
Teacher spread0.267 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it