Evidence map›Paper›PMID 40828681›Full record

ArticleLangmuir : the ACS journal of surfaces and colloids2025

Biomimetic Cobalt Complex Stabilized by Hydrogel on High-Edge-Density Graphite for ORR and HER in Quiescent Solutions.

Fhysmélia F Albuquerque, Rodrigo M Iost, Gabriel C Fonseca, Radhakrishnan Venkatkarthick, Jessica C Pacheco, Rafael N P Colombo, Fabio H B Lima, Frank N Crespilho

Abstract read
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In one paragraph

Article in Langmuir : the ACS journal of surfaces and colloids, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

8 authors.

Fhysmélia F AlbuquerqueSão Carlos Institute of Chemistry, University of São Paulo (USP), 13560-970 São Carlos, Brazil.ORCID 0000-0001-8897-187X
Rodrigo M IostDepartment of Fundamental Chemistry, Institute of Chemistry, University of Sao Paulo, Av. Professor Lineu Prestes, 748-B4T, Butantã, Sao Paulo 05508-000, Brazil.ORCID 0000-0003-2099-5052
Gabriel C FonsecaSão Carlos Institute of Chemistry, University of São Paulo (USP), 13560-970 São Carlos, Brazil.
Radhakrishnan VenkatkarthickSão Carlos Institute of Chemistry, University of São Paulo (USP), 13560-970 São Carlos, Brazil.ORCID 0000-0001-5520-4236
Jessica C PachecoSão Carlos Institute of Chemistry, University of São Paulo (USP), 13560-970 São Carlos, Brazil.
Rafael N P ColomboChemistry Department, Federal University of São Carlos (UFSCar), 13565-905 São Carlos, Brazil.ORCID 0000-0001-8126-4398
Fabio H B LimaSão Carlos Institute of Chemistry, University of São Paulo (USP), 13560-970 São Carlos, Brazil.
Frank N CrespilhoSão Carlos Institute of Chemistry, University of São Paulo (USP), 13560-970 São Carlos, Brazil.ORCID 0000-0003-4830-652X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biomimetic catalysts are increasingly relevant in energy conversion due to their ability to imitate the redox activity and selective catalytic efficiency of natural enzymes involved in key reactions such as the oxygen reduction reaction (ORR) and hydrogen evolution reaction (HER). In this study, hydroxocobalamin acetate, a cobalt complex based on a corrin ring structure, analogue of vitamin B12 that mimics native active site of proteins, was immobilized on high-edge-density graphite electrodes (HEDGE). The exposed edge planes of HEDGE enhance electron transfer kinetics, providing a structurally favorable substrate for catalytic activity. The system was further encapsulated in an agarose hydrogel, which functions as a diffusion-regulating matrix, modulating gas and electrolyte permeability critical for sustained electrocatalytic performance in quiescent solutions. This configuration demonstrates dual catalytic functionality, efficiently facilitating ORR via selective molecular oxygen (O

Indexed as

Biomimetic MaterialsCobaltCoordination ComplexesGraphiteHydrogelsHydrogenOxygenCatalysisElectrodesOxidation-ReductionCobaltCoordination ComplexesGraphiteHydrogelsHydrogenOxygen

Identifiers

PMID40828681
PMCPMC12409881

What OpenQuestion holds

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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.