Tuning the electronic metal-carbon interactions in Lignin-based carbon-supported ruthenium-based electrocatalysts for enhanced hydrogen evolution reactions
Copyright © 2024 Elsevier Inc. All rights reserved..
Ruthenium (Ru) nanoparticles dispersed on carbon support are promising electrocatalysts for hydrogen evolution reaction (HER) due to strong electronic metal-carbon interactions (EMCIs). Defects engineering in carbon supports is an effective strategy to adjust EMCIs. We prepared nitrogen/sulfur co-doped carbon supported Ru nanoparticles (RuN/S-LC) using sodium lignosulfonate and urea as feedstocks. Intrinsic S dopants from sodium lignosulfonate create rich S defects, thus enhancing the EMCIs within Ru@N/S-LC, leading a faster electron transfer between Ru nanoparticles and N/S-LC compared with N-doped carbon supported Ru nanoparticles (Ru@N-CC). The resulting Ru@N/S-LC exhibits an enhanced work function and a down-shifted d-band center, inducing stronger electron capturing ability and weaker hydrogen desorption energy than Ru@N-CC. Ru@N/S-LC requires only 7 and 94 mV overpotential in acidic medium and alkaline medium to achieve a current density of 10 mA cm-2. Density Functional Theory (DFT) calculations were utilized to clarify the impact of sulfur (S) doping and the mechanism underlying the notable catalytic activity of Ru@N/S-LC. This study offers a perspective for utilizing the natural dopants of biomass to adjust the EMCIs for electrocatalysts.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:664 |
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| Enthalten in: |
Journal of colloid and interface science - 664(2024) vom: 15. Apr., Seite 251-262 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Wang, Qichang [VerfasserIn] |
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| Links: |
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| Themen: |
Electronic metal-carbon interactions |
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| Anmerkungen: |
Date Revised 06.04.2024 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1016/j.jcis.2024.03.019 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM369568249 |
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| 245 | 1 | 0 | |a Tuning the electronic metal-carbon interactions in Lignin-based carbon-supported ruthenium-based electrocatalysts for enhanced hydrogen evolution reactions |
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| 500 | |a Date Revised 06.04.2024 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Copyright © 2024 Elsevier Inc. All rights reserved. | ||
| 520 | |a Ruthenium (Ru) nanoparticles dispersed on carbon support are promising electrocatalysts for hydrogen evolution reaction (HER) due to strong electronic metal-carbon interactions (EMCIs). Defects engineering in carbon supports is an effective strategy to adjust EMCIs. We prepared nitrogen/sulfur co-doped carbon supported Ru nanoparticles (RuN/S-LC) using sodium lignosulfonate and urea as feedstocks. Intrinsic S dopants from sodium lignosulfonate create rich S defects, thus enhancing the EMCIs within Ru@N/S-LC, leading a faster electron transfer between Ru nanoparticles and N/S-LC compared with N-doped carbon supported Ru nanoparticles (Ru@N-CC). The resulting Ru@N/S-LC exhibits an enhanced work function and a down-shifted d-band center, inducing stronger electron capturing ability and weaker hydrogen desorption energy than Ru@N-CC. Ru@N/S-LC requires only 7 and 94 mV overpotential in acidic medium and alkaline medium to achieve a current density of 10 mA cm-2. Density Functional Theory (DFT) calculations were utilized to clarify the impact of sulfur (S) doping and the mechanism underlying the notable catalytic activity of Ru@N/S-LC. This study offers a perspective for utilizing the natural dopants of biomass to adjust the EMCIs for electrocatalysts | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Electronic metal-carbon interactions | |
| 650 | 4 | |a Hydrogen evolution reaction | |
| 650 | 4 | |a Ruthenium nanoparticles | |
| 650 | 4 | |a Sodium lignosulfonate-based carbon | |
| 650 | 4 | |a Sulfur defects | |
| 700 | 1 | |a Zhao, Jing |e verfasserin |4 aut | |
| 700 | 1 | |a Yang, Xiaoxuan |e verfasserin |4 aut | |
| 700 | 1 | |a Li, Jianfei |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Chunfei |e verfasserin |4 aut | |
| 700 | 1 | |a Shen, Dekui |e verfasserin |4 aut | |
| 700 | 1 | |a Cheng, Chongbo |e verfasserin |4 aut | |
| 700 | 1 | |a Xu, Lian-Hua |e verfasserin |4 aut | |
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| 773 | 1 | 8 | |g volume:664 |g year:2024 |g day:15 |g month:04 |g pages:251-262 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1016/j.jcis.2024.03.019 |3 Volltext |
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