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Dang J, Chen G, Yuan B, Liu F, Wang Q, Wang F, Miao H, Yuan J. Promoting the four electrocatalytic reactions of OER/ORR/HER/MOR using a multi-component metal sulfide heterostructure for zinc-air batteries and water-splitting. NANOSCALE 2024; 16:4710-4723. [PMID: 38284406 DOI: 10.1039/d3nr05581g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Multi-component metal sulfide heterostructures are promising for multi-functional catalytic activities. In this work, we fabricated a multi-component metal sulfide heterostructure (Co-S-INF, composed of Co3S4 and (Fe, Ni)9S8) with nanoflower morphology clustered with numerous nanosheets by the electrodeposition of cobalt on iron-nickel foam followed by hydrothermal sulfurization treatment. Co-S-INF possesses high multi-functional electrocatalytic properties toward the oxygen evolution reaction (OER), oxygen reduction reaction (ORR), hydrogen evolution reaction (HER), and methanol oxidation reaction (MOR). In particular, the ORR potential at 10 mA cm-2 is 0.682 V, and the OER, HER, and MOR potentials at 100 mA cm-2 are 1.478 V, 0.289 V, and 1.417 V, respectively. By using Co-S-INF, the aqueous ZAB with an ultrahigh peak power density of 332.30 mW cm-2 and an overall water splitting (OWS) device with a low splitting voltage of 1.82 V at 100 mA cm-2 can be obtained. In addition, the OWS potential can be further decreased to 1.70 V at a current density of 100 mA cm-2 with the assistance of MOR at the anode accompanying the production of the high value-added formate. Our work opens the way for the application and development of multi-functional electrocatalysts.
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Affiliation(s)
- Jiaxin Dang
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, PR China.
| | - Genman Chen
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, PR China.
| | - Bingen Yuan
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, PR China.
| | - Fuyue Liu
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, PR China.
| | - Qin Wang
- Department of Microelectronic Science and Engineering, Faculty of Science, Ningbo University, Ningbo 315211, PR China
| | - Fu Wang
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, PR China.
| | - He Miao
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, PR China.
| | - Jinliang Yuan
- Faculty of Maritime and Transportation, Ningbo University, Ningbo 315211, PR China.
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Vu MT, Ngan Nguyen TT, Hung TQ, Pham-Truong TN, Osial M, Decorse P, Nguyen TT, Piro B, Thu VT. Insights into Structural Behaviors of Thiolated and Aminated Reduced Graphene Oxide Supports to Understand Their Effect on MOR Efficiency. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13897-13907. [PMID: 37738086 DOI: 10.1021/acs.langmuir.3c01446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
It is essential to develop novel catalysts with high catalytic activity, strong durability, and good stability for further application in methanol fuel cells. In this work, we present for the first time the effect of the chemical functional groups (thiol and amine) with different electron affinity in reduced graphene oxide supports on the morphology and catalytic activity of platinum nanoparticles for the methanol oxidation reaction. Hydroxyl groups on graphene oxide were initially brominated and then transformed to the desired functional groups. The good dispersion of metal nanoparticles over functionalized carbon substrates (particle size less than 5 nm) with good durability, even at a limited functionalization degree (less than 7%) has been demonstrated by morphological and structural studies. The durability of the catalysts was much improved via strong coordination between the metal and nitrogen or sulfur atoms. Impressively, the catalytic activity of platinum nanoparticles on aminated reduced graphene oxide was found to be much better than that on thiolated graphene oxide despite the weaker affinity between amine and noble metals. These findings support further developing new graphene derivatives with the desired functionalization for electronics and energy applications..
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Affiliation(s)
- Minh Thu Vu
- Vietnam Academy of Science and Technology (VAST), University of Science and Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Thi Thanh Ngan Nguyen
- Vietnam Academy of Science and Technology (VAST), University of Science and Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Tran Quang Hung
- Vietnam Academy of Science and Technology (VAST), Institute of Chemistry (IOC), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | | | - Magdalena Osial
- Polish Academy of Sciences, Institute of Fundamental Technological Research, Pawińskiego 5B, Warsaw 02-106, Poland
| | - Philippe Decorse
- Université Paris Cité, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, Paris F-75013, France
| | - Thi Thom Nguyen
- Vietnam Academy of Science and Technology (VAST), Institute of Tropical Technology (ITT), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
| | - Benoit Piro
- Université Paris Cité, ITODYS, CNRS, UMR 7086, 15 rue J.-A. de Baïf, Paris F-75013, France
| | - Vu Thi Thu
- Vietnam Academy of Science and Technology (VAST), University of Science and Technology of Hanoi (USTH), 18 Hoang Quoc Viet, Cau Giay, Hanoi 10000, Vietnam
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