CoChat
Sign Up
Cited by 532Electrocatalysts for Energy ConversionCO2 Reduction Techniques and CatalystsCatalytic Processes in Materials Science

The DOI matches its Crossref record; 55 of the 55 references it cites were found in a registry or an index.

Potential‐Cycling Synthesis of Single Platinum Atoms for Efficient Hydrogen Evolution in Neutral Media

Open access
Zhang, Lihan, Han, Lili, Liu, Haoxuan, Liu, Xijun, Luo, Jun·2017·Angewandte Chemie International Edition
DOI 10.1002/anie.201706921PMC PMC5659130
Open this paper in CoChat — free accountOpen PDF

Abstract

Single‐atom catalysts (SACs) have exhibited high activities for the hydrogen evolution reaction (HER) electrocatalysis in acidic or alkaline media, when they are used with binders on cathodes. However, to date, no SACs have been reported for the HER electrocatalysis in neutral media. We demonstrate a potential‐cycling method to synthesize a catalyst comprising single Pt atoms on CoP‐based nanotube arrays supported by a Ni foam, termed PtSA‐NT‐NF. This binder‐free catalyst is centimeter‐scale and scalable. It is directly used as HER cathodes, whose performances at low and high current densities in phosphate buffer solutions (pH 7.2) are comparable to and better than, respectively, those of commercial Pt/C. The Pt mass activity of PtSA‐NT‐NF is 4 times of that of Pt/C, and its electrocatalytic stability is also better than that of Pt/C. This work provides a large‐scale production strategy for binder‐free Pt SAC electrodes for efficient HER in neutral media.

Overview

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/anie.201706921

Cites

55 of 55 references verified0 citation errors · 0 not checkable

Statistics

Figures

Figure 1 a) Schematic diagram of the synthesis process. CE counter electrode, RE reference electrode, WE working electrode. The CE is Pt. b) HER polarization curves of the S1 precursor sample after different numbers of potential cycles were performed on it. The curves were taken with 5 mV s−1 in N2‐saturated 1 m PBS at 25 °C. c) Dependence of the overpotential of S1 on the cycle number.
Figure 1 a) Schematic diagram of the synthesis process. CE counter electrode, RE reference electrode, WE working electrode. The CE is Pt. b) HER polarization curves of the S1 precursor sample after different numbers of potential cycles were performed on it. The curves were taken with 5 mV s−1 in N2‐saturated 1 m PBS at 25 °C. c) Dependence of the overpotential of S1 on the cycle number.CC BY-NC · PubMed Central
Figure 2 a),b) Optical and SEM images of a piece of PtSA‐NT‐NF. c) TEM image of a NT from the piece of PtSA‐NT‐NF. d) EDS map of Pt in a NT. The inset is the corresponding high‐angle annular dark field (HAADF) image scale bar: 20 nm. e) Atomic‐resolution (AR) HAADF image of the NT in (d) (Pt atoms ringed in red; more AR images are in Figure S3). f) Electron diffraction pattern of NTs.
Figure 2 a),b) Optical and SEM images of a piece of PtSA‐NT‐NF. c) TEM image of a NT from the piece of PtSA‐NT‐NF. d) EDS map of Pt in a NT. The inset is the corresponding high‐angle annular dark field (HAADF) image scale bar: 20 nm. e) Atomic‐resolution (AR) HAADF image of the NT in (d) (Pt atoms ringed in red; more AR images are in Figure S3). f) Electron diffraction pattern of NTs.CC BY-NC · PubMed Central
Figure 3 a) XRD pattern of PtSA‐NT‐NF (red) and the standard one of Pt (black). b) XPS spectra of PtSA‐NT‐NF and commercial 20 wt % Pt/C.
Figure 3 a) XRD pattern of PtSA‐NT‐NF (red) and the standard one of Pt (black). b) XPS spectra of PtSA‐NT‐NF and commercial 20 wt % Pt/C.CC BY-NC · PubMed Central
Figure 4 a) HER polarization curves of NF, NT‐NF, PtSA‐NT‐NF, and Pt/C, acquired with 5 mV s−1 in N2‐saturated 1 m PBS at 25 °C. b) Tafel plots of the polarization curves in (a). c) Pt mass activities of PtSA‐NT‐NF and Pt/C at η=50 mV. The activity values have been normalized to the Pt loadings, and the contributions of the NTs and NFs have been deducted. d) Chronoamperometric curves of PtSA‐NT‐NF and Pt/C at a constant j HER=100 mA cm−2. The CEs used for the results in (a–d) are all graphite rods.
Figure 4 a) HER polarization curves of NF, NT‐NF, PtSA‐NT‐NF, and Pt/C, acquired with 5 mV s−1 in N2‐saturated 1 m PBS at 25 °C. b) Tafel plots of the polarization curves in (a). c) Pt mass activities of PtSA‐NT‐NF and Pt/C at η=50 mV. The activity values have been normalized to the Pt loadings, and the contributions of the NTs and NFs have been deducted. d) Chronoamperometric curves of PtSA‐NT‐NF and Pt/C at a constant j HER=100 mA cm−2. The CEs used for the results in (a–d) are all graphite rods.CC BY-NC · PubMed Central

Verification

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Citations

Cites

Show all 54 references

Cited by

Sorted by citations

Items 501–531 of 531

Related

See all

Metadata

Authors
Zhang, L., Han, L., Liu, H., Liu, X., & Luo, J.
Affiliations
Tianjin University of Technology (CN)
Corresponding author
  • Liu, Xijun
  • Luo, Jun
ORCID
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2017-08-23
Volume
56
Issue
44
Pages
13694-13698
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
DOI
10.1002/anie.201706921
PMC
PMC5659130
OpenAlex
W2742693693
Cited by
532
References
54
Citations by year
2026: 22 · 2025: 32 · 2024: 45 · 2023: 53 · 2022: 78 · 2021: 96 · 2020: 92 · 2019: 68 · 2018: 41 · 2017: 5
FWCI
15.09
Type
journal article
Language
en
Open access
Licence
Locations
  • Angewandte Chemie International Edition (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (21601136, 51572016)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
  • Physical Sciences › Materials Science › Materials Chemistry › Catalytic Processes in Materials Science
Keywords
single-atom catalysts, platinum single atoms, hydrogen evolution reaction, media neutrality, binder-free electrocatalyst, nickel foam, phosphate buffer, electrocatalytic stability

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review