Multicomponent transition metal phosphides derived from layered double hydroxide double-shelled nanocages as an efficient non-precious co-catalyst for hydrogen production

D. Amaranatha Reddy, Hyun Kook Kim, Yujin Kim, Seunghee Lee, Jiha Choi, M. Jahurul Islam, D. Praveen Kumar, Tae Kyu Kim

Research output: Contribution to journalArticle

49 Citations (Scopus)

Abstract

Non-precious transition metal phosphides (TMPs) are emerging as the most promising substitutes for expensive noble metal-based co-catalysts for the hydrogen evolution reaction. While the synthesis of TMPs is well established, it is extremely challenging to design porous multicomponent transition metal phosphides (MCTMPs) to overcome the drawbacks of TMPs, namely, limited active sites and low surface area. Herein, we synthesized MCTMPs (containing Co, Ni, and Mo) from layered double hydroxide double-shelled nanocages by a metal-organic framework (MOF) template-engaged strategy. Benefiting from the rich structural features, high specific surface area, and multiple active components in the composition, the MCTMPs manifest greatly enhanced photocatalytic hydrogen evolution properties when integrated with CdS semiconductor nanorods. The observed hydrogen evolution rate is 53.76 fold higher than that of the bare CdS nanostructures and 4.37 times higher than that of the benchmark 2 wt% Pt-CdS nanorods, with a quantum efficiency of 40.6%. A possible explanation for the enhancement of the photocatalytic activity was proposed on the basis of the separation efficiency of the photogenerated charge carriers; this was further confirmed by photocurrent, electrochemical impedance spectroscopy, and photoluminescence studies. We believe that the work presented here represents a novel design strategy for MCTMPs with active noble metal free components with applications as sunlight-driven photocatalysts for hydrogen production through water splitting.

Original languageEnglish
Pages (from-to)13890-13898
Number of pages9
JournalJournal of Materials Chemistry A
Volume4
Issue number36
DOIs
Publication statusPublished - 2016 Jan 1

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Hydrogen production
Transition metals
Catalysts
Hydrogen
Precious metals
Nanorods
Photocatalysts
hydroxide ion
Charge carriers
Photocurrents
Quantum efficiency
Electrochemical impedance spectroscopy
Specific surface area
Nanostructures
Photoluminescence
Metals
Semiconductor materials
Water
Chemical analysis

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)

Cite this

Reddy, D. Amaranatha ; Kim, Hyun Kook ; Kim, Yujin ; Lee, Seunghee ; Choi, Jiha ; Islam, M. Jahurul ; Kumar, D. Praveen ; Kim, Tae Kyu. / Multicomponent transition metal phosphides derived from layered double hydroxide double-shelled nanocages as an efficient non-precious co-catalyst for hydrogen production. In: Journal of Materials Chemistry A. 2016 ; Vol. 4, No. 36. pp. 13890-13898.
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abstract = "Non-precious transition metal phosphides (TMPs) are emerging as the most promising substitutes for expensive noble metal-based co-catalysts for the hydrogen evolution reaction. While the synthesis of TMPs is well established, it is extremely challenging to design porous multicomponent transition metal phosphides (MCTMPs) to overcome the drawbacks of TMPs, namely, limited active sites and low surface area. Herein, we synthesized MCTMPs (containing Co, Ni, and Mo) from layered double hydroxide double-shelled nanocages by a metal-organic framework (MOF) template-engaged strategy. Benefiting from the rich structural features, high specific surface area, and multiple active components in the composition, the MCTMPs manifest greatly enhanced photocatalytic hydrogen evolution properties when integrated with CdS semiconductor nanorods. The observed hydrogen evolution rate is 53.76 fold higher than that of the bare CdS nanostructures and 4.37 times higher than that of the benchmark 2 wt{\%} Pt-CdS nanorods, with a quantum efficiency of 40.6{\%}. A possible explanation for the enhancement of the photocatalytic activity was proposed on the basis of the separation efficiency of the photogenerated charge carriers; this was further confirmed by photocurrent, electrochemical impedance spectroscopy, and photoluminescence studies. We believe that the work presented here represents a novel design strategy for MCTMPs with active noble metal free components with applications as sunlight-driven photocatalysts for hydrogen production through water splitting.",
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Multicomponent transition metal phosphides derived from layered double hydroxide double-shelled nanocages as an efficient non-precious co-catalyst for hydrogen production. / Reddy, D. Amaranatha; Kim, Hyun Kook; Kim, Yujin; Lee, Seunghee; Choi, Jiha; Islam, M. Jahurul; Kumar, D. Praveen; Kim, Tae Kyu.

In: Journal of Materials Chemistry A, Vol. 4, No. 36, 01.01.2016, p. 13890-13898.

Research output: Contribution to journalArticle

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T1 - Multicomponent transition metal phosphides derived from layered double hydroxide double-shelled nanocages as an efficient non-precious co-catalyst for hydrogen production

AU - Reddy, D. Amaranatha

AU - Kim, Hyun Kook

AU - Kim, Yujin

AU - Lee, Seunghee

AU - Choi, Jiha

AU - Islam, M. Jahurul

AU - Kumar, D. Praveen

AU - Kim, Tae Kyu

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