The DOI matches its Crossref record; 5 of the 5 references it cites were found in a registry or an index.
Negative Electrocatalytic Effects of p-Doping Niobium and Tantalum on MoS2 and WS2 for the Hydrogen Evolution Reaction and Oxygen Reduction Reaction
Abstract
Transition-metal dichalcogenides (TMDs) are at the forefront of research for their promising catalytic abilities and unique materials properties. With great interest in the study of mono- or few-layered TMDs, we seek to fundamentally explore the effects of doping on bulk TMDs, particularly MoS 2 and WS 2 for the hydrogen evolution reaction (HER) and oxygen reduction reaction (ORR) with p-dopants Nb and Ta. Despite promises reported in the computational studies of doped TMDs on the HER, our results show otherwise. Doped bulk TMDs display less catalytic activity in comparison to their undoped counterparts for the HER. A similar effect is observed for ORR catalysis. Characterization was done to shed light on its surface elemental composition, properties, and morphologies. It was found that doped WS 2 has a high percentage of 1T phase but this does not correlate with a lower overpotential for the HER at −10 mA cm –2, which contradicts the general consensus. We therefore show that p-dopants have a negative electrocatalytic effect on the HER. These findings are of high importance for the field of TMD electrochemistry, as they challenge the current consensus that doping always improves the electrocatalysis of TMDs.
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Citations
Cites
Identification of Active Edge Sites for Electrochemical H 2 Evolution from MoS 2 Nanocatalysts
Jaramillo, T. F., Jørgensen, K. P., Bonde, J., Nielsen, J. H., Horch, S., & Chorkendorff, I. (2007) · Science · doi:10.1126/science.1141483 · Cited by 6,100
MoS 2 Nanoparticles Grown on Graphene: An Advanced Catalyst for the Hydrogen Evolution Reaction
Li, Y., Wang, H., Xie, L., Liang, Y., Hong, G., & Dai, H. (2011) · Journal of the American Chemical Society · doi:10.1021/ja201269b · Cited by 5,001
Yan, Y., Xia, B., Xu, Z., & Wang, X. (2014) · ACS Catalysis · doi:10.1021/cs500070x · Cited by 868
Layer-Dependent Electrocatalysis of MoS2 for Hydrogen Evolution
Yu, Y., Huang, S.-Y., Li, Y., Steinmann, S. N., Yang, W., & Cao, L. (2014) · Nano Letters · doi:10.1021/nl403620g · Cited by 740
Tsai, C., Chan, K., Abild-Pedersen, F., & Nørskov, J. K. (2014) · Phys. Chem. Chem. Phys. · doi:10.1039/c4cp01237b · Cited by 494
Cited by
Khan, A. H., Ghosh, S., Pradhan, B., Dalui, A., Shrestha, L. K., Acharya, S., & Ariga, K. (2017) · Bulletin of the Chemical Society of Japan · doi:10.1246/bcsj.20170043 · Cited by 432
Layered and two dimensional metal oxides for electrochemical energy conversion
Browne, M. P., Sofer, Z., & Pumera, M. (2019) · Energy & Environmental Science · doi:10.1039/c8ee02495b · Cited by 396
Self-citationAttanayake, N. H., Thenuwara, A. C., Patra, A., Aulin, Y. V., Tran, T. M., Chakraborty, H., Borguet, E., Klein, M. L., Perdew, J. P., & Strongin, D. R. (2018) · ACS Energy Letters · doi:10.1021/acsenergylett.7b00865 · Cited by 292
Yang, J., Guo, D., Zhao, S., Lin, Y., Yang, R., Xu, D., Shi, N., Zhang, X., Lu, L., Lan, Y., et al. (2019) · Small · doi:10.1002/smll.201804546 · Cited by 148
Metadata
- Authors
- Chua, X. J., Luxa, J., Eng, A. Y. S., Tan, S. M., Sofer, Z., & Pumera, M.
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2016-08-01
- Volume
- 6
- Issue
- 9
- Pages
- 5724-5734
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2492754457
- Cited by
- 201
- References
- 5
- FWCI
- 7.06
- Type
- journal article
- Language
- en
- Open access
- closed
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