Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation

Research output: Contribution to journalArticle

Standard

Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation. / Burch, H. A.; Isaacs, M.; Wilson, K.; Palmer, Richard; Rees, N. V.

In: RSC Advances, Vol. 6, No. 32, 2016, p. 26689-26695.

Research output: Contribution to journalArticle

Harvard

APA

Vancouver

Author

Bibtex

@article{9a8c1bd647a747d4845359c6b1a5cdd9,
title = "Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation",
abstract = "The performance of MoS2 as a hydrogen evolution catalyst is diminished by exposure to air. We demonstrate a solution phase technique to resulfidate MoSxO2−x using Na2S2O3. The success of the method was judged by performance as a H+ reduction catalyst. Following sulfidation samples displayed a favourable decrease in both onset potential and Tafel slope, with the best decreasing from −0.23 V to −0.18 V (vs. SHE), and 282 mV dec-1 to 87 mV dec-1 respectively. Ageing studies indicate that this method may be used to recycle the MoS2 repeatedly without losing catalytic performance, although repeated sulfidation did result in homogenisation of the nanostructure.",
author = "Burch, {H. A.} and M. Isaacs and K. Wilson and Richard Palmer and Rees, {N. V.}",
year = "2016",
doi = "10.1039/C6RA03326A",
language = "English",
volume = "6",
pages = "26689--26695",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "32",

}

RIS

TY - JOUR

T1 - Electrocatalytic regeneration of atmospherically aged MoS2 nanostructures via solution-phase sulfidation

AU - Burch, H. A.

AU - Isaacs, M.

AU - Wilson, K.

AU - Palmer, Richard

AU - Rees, N. V.

PY - 2016

Y1 - 2016

N2 - The performance of MoS2 as a hydrogen evolution catalyst is diminished by exposure to air. We demonstrate a solution phase technique to resulfidate MoSxO2−x using Na2S2O3. The success of the method was judged by performance as a H+ reduction catalyst. Following sulfidation samples displayed a favourable decrease in both onset potential and Tafel slope, with the best decreasing from −0.23 V to −0.18 V (vs. SHE), and 282 mV dec-1 to 87 mV dec-1 respectively. Ageing studies indicate that this method may be used to recycle the MoS2 repeatedly without losing catalytic performance, although repeated sulfidation did result in homogenisation of the nanostructure.

AB - The performance of MoS2 as a hydrogen evolution catalyst is diminished by exposure to air. We demonstrate a solution phase technique to resulfidate MoSxO2−x using Na2S2O3. The success of the method was judged by performance as a H+ reduction catalyst. Following sulfidation samples displayed a favourable decrease in both onset potential and Tafel slope, with the best decreasing from −0.23 V to −0.18 V (vs. SHE), and 282 mV dec-1 to 87 mV dec-1 respectively. Ageing studies indicate that this method may be used to recycle the MoS2 repeatedly without losing catalytic performance, although repeated sulfidation did result in homogenisation of the nanostructure.

U2 - 10.1039/C6RA03326A

DO - 10.1039/C6RA03326A

M3 - Article

VL - 6

SP - 26689

EP - 26695

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 32

ER -