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Van Nguyen T, Do HH, Tekalgne M, Van Le Q, Nguyen TP, Hong SH, Cho JH, Van Dao D, Ahn SH, Kim SY. WS 2-WC-WO 3 nano-hollow spheres as an efficient and durable catalyst for hydrogen evolution reaction. NANO CONVERGENCE 2021; 8:28. [PMID: 34542727 PMCID: PMC8452812 DOI: 10.1186/s40580-021-00278-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 09/02/2021] [Indexed: 06/12/2023]
Abstract
Transition metal dichalcogenides (TMDs), transition metal carbides (TMCs), and transition metal oxides (TMOs) have been widely investigated for electrocatalytic applications owing to their abundant active sites, high stability, good conductivity, and various other fascinating properties. Therefore, the synthesis of composites of TMDs, TMCs, and TMOs is a new avenue for the preparation of efficient electrocatalysts. Herein, we propose a novel low-cost and facile method to prepare TMD-TMC-TMO nano-hollow spheres (WS2-WC-WO3 NH) as an efficient catalyst for the hydrogen evolution reaction (HER). The crystallinity, morphology, chemical bonding, and composition of the composite material were comprehensively investigated using X-ray diffraction, Raman spectroscopy, field emission scanning electron microscopy, and X-ray photoelectron spectroscopy. The results confirmed the successful synthesis of the WS2-WC-WO3 NH spheres. Interestingly, the presence of nitrogen significantly enhanced the electrical conductivity of the hybrid material, facilitating electron transfer during the catalytic process. As a result, the WS2-WC-WO3 NH hybrid exhibited better HER performance than the pure WS2 nanoflowers, which can be attributed to the synergistic effect of the W-S, W-C, and W-O bonding in the composite. Remarkably, the Tafel slope of the WS2-WC-WO3 NH spheres was 59 mV dec-1, which is significantly lower than that of the pure WS2 NFs (82 mV dec-1). The results also confirmed the unprecedented stability and superior electrocatalytic performance of the WS2-WC-WO3 NH spheres toward the HER, which opens new avenues for the preparation of low-cost and highly effective materials for energy conversion and storage applications.
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Affiliation(s)
- Tuan Van Nguyen
- Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Ha Huu Do
- Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Mahider Tekalgne
- Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Quyet Van Le
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Thang Phan Nguyen
- Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea
| | - Sung Hyun Hong
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Jin Hyuk Cho
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Dung Van Dao
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Sang Hyun Ahn
- Department of Chemical and Biological Engineering, Gachon University, Seongnam-si, Gyeonggi-do, 13120, Republic of Korea.
| | - Soo Young Kim
- Department of Materials Science and Engineering, Institute of Green Manufacturing Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
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Yan Z, Gao L, Zhang M, Xie J, Chen M. Angstrom-scale vanadium carbide rods as Pt electrocatalyst support for efficient methanol oxidation reaction. RSC Adv 2015. [DOI: 10.1039/c4ra11798k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Angstrom-scale vanadium carbide rods greatly increase the Pt electrocatalyst activity for methanol oxidation.
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Affiliation(s)
- Zaoxue Yan
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- PR China
| | - Lina Gao
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- PR China
| | - Mingmei Zhang
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- PR China
| | - Jimin Xie
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- PR China
| | - Min Chen
- School of Chemistry and Chemical Engineering
- Jiangsu University
- Zhenjiang
- PR China
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Jaafar NF, Jalil AA, Triwahyono S, Shamsuddin N. New insights into self-modification of mesoporous titania nanoparticles for enhanced photoactivity: effect of microwave power density on formation of oxygen vacancies and Ti3+ defects. RSC Adv 2015. [DOI: 10.1039/c5ra15120a] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mesoporous titania nanoparticles (MTN) were successfully prepared by a microwave (MW)-assisted method under various power densities.
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Affiliation(s)
- N. F. Jaafar
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - A. A. Jalil
- Centre of Hydrogen Energy
- Institute of Future Energy
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - S. Triwahyono
- Department of Chemistry
- Faculty of Science
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
| | - N. Shamsuddin
- Department of Chemical Engineering
- Faculty of Chemical Engineering
- Universiti Teknologi Malaysia
- 81310 UTM Johor Bahru
- Malaysia
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