Evidence map›Paper›PMID 28496121›Full record

ArticleScientific reports2017

ZnO@C (core@shell) microspheres derived from spent coffee grounds as applicable non-precious electrode material for DMFCs.

Zafar Khan Ghouri, Saeed Al-Meer, Nasser A M Barakat, Hak Yong Kim

Abstract read
In one paragraph

Article in Scientific reports, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Engineering Lattice Strain in Co-Doped NiMoOChemistry, an Asian journal · 2025
    Article
  2. Review
  3. Article
  4. Review
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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

4 authors.

Zafar Khan GhouriCentral Laboratory Unit, Qatar University, P. O. Box: 2713, Doha, Qatar. zafarkhanghouri@hotmail.com.
Saeed Al-MeerCentral Laboratory Unit, Qatar University, P. O. Box: 2713, Doha, Qatar.
Nasser A M BarakatChemical Engineering Department, Faculty of Engineering, El-Minia University, El-Minia, Egypt. nasser@jbnu.ac.kr.
Hak Yong KimDepartment of BIN Convergence Technology, Chonbuk National University, Jeonju, 561-756, Republic of Korea. khy@jbnu.ac.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although numerous reports have introduced non precious electrocatalysts for methanol oxidation, most of those studies did not consider the corresponding high onset potential which restricts utilization in real fuel cells. In this study, an -90 mV [vs. Ag/AgCl] onset potential non-precious electrocatalyst is introduced as an applicable anode material for the direct methanol fuel cells. Moreover, the proposed material was prepared from a cheap and abundantly existing resource; the spent coffee grounds. Typically, the spent coffee grounds were facilely converted to core@shell (ZnO@C) microspheres through a two-step approach, involving chemical activation and a subsequent calcination at temperature of 700 °C. Activation of the carbon derived from the spent coffee grounds was performed with ZnCl

Indexed as

Bioelectric Energy SourcesMicrospheresCoffeeElectrochemistryElectrodesElementsMethanolSpectrometry, X-Ray EmissionX-Ray DiffractionZinc OxideCoffeeElementsMethanolZinc Oxide

Identifiers

PMID28496121
PMCPMC5431908

What OpenQuestion holds

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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.