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Record W2984236507 · doi:10.1021/acscatal.9b02853

Identification of Catalytic Active Sites in Nitrogen-Doped Carbon for Electrocatalytic Dechlorination of 1,2-Dichloroethane

2019· article· en· W2984236507 on OpenAlexaff
Guoqiang Gan, Xinyong Li, Liang Wang, Shiying Fan, Ji Li, Feng Liang, Aicheng Chen

Bibliographic record

VenueACS Catalysis · 2019
Typearticle
Languageen
FieldEngineering
TopicEnvironmental remediation with nanomaterials
Canadian institutionsUniversity of Guelph
FundersState Administration of Foreign Experts AffairsMinistry of Science and Technology of the People's Republic of ChinaMinistry of Education of the People's Republic of ChinaNational Natural Science Foundation of China
KeywordsCatalysis1,2-DichloroethaneEthyleneCarbon fibersChemistryNoble metalActive siteInorganic chemistryMaterials scienceOrganic chemistry

Abstract

fetched live from OpenAlex

Nitrogen (N)-doped carbon materials are considered as the most promising alternative to replace noble-metal catalysts for electrocatalytic dechlorination of 1,2-dichloroethane (DCE), which is a promising reaction for industrial production and environmental protection. Unfortunately, the vague cognition of the catalytic active sites limits its further development. Herein, a series of surface N-doped porous carbon materials with adjustable N dopants were synthesized to identify the active sites for electrocatalytic dechlorination of DCE. The as-prepared catalyst showed fascinating DCE electrocatalytic dechlorination activity and ethylene selectivity at −2.75 V (vs SCE) with a current density of 17.94 mA cm–2geometry and ethylene Faradaic efficiency of 21%. The post hydrogen treatment and X-ray photoelectron spectroscopic analysis experimentally proved that the oxidized N acts as the active site for the dechlorination of DCE to CH2CH2, which was further theoretically confirmed by first-principles calculations. This work would open avenues for the development of N-doped carbon and the production of ethylene in an efficient and environmentally benign manner.

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.

How this classification was reachedexpand

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.007
Threshold uncertainty score0.619

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
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)0.0000.000

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 head0.007
GPT teacher head0.215
Teacher spread0.208 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations70
Published2019
Admission routes1
Has abstractyes

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