Preparation and Support Effect of Graphdiyne Nanotubes with Abundant Cu Quantum Dots
Graphdiyne (GDY) is considered a very attractive support for metal nanocatalysts due to its unique structure and superior properties. The metal–GDY interaction can significantly affect the performance of catalysts. Herein, GDY nanotubes abundant in in situ formed Cu quantum dots (QDs) (Cu-GDYNT) are...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2024-03-01
|
| Series: | Molecules |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1420-3049/29/6/1410 |
| _version_ | 1797239841753137152 |
|---|---|
| author | Yan Lv Wenzhou Wang Zhangwei Li Fucang Liang |
| author_facet | Yan Lv Wenzhou Wang Zhangwei Li Fucang Liang |
| author_sort | Yan Lv |
| collection | DOAJ |
| description | Graphdiyne (GDY) is considered a very attractive support for metal nanocatalysts due to its unique structure and superior properties. The metal–GDY interaction can significantly affect the performance of catalysts. Herein, GDY nanotubes abundant in in situ formed Cu quantum dots (QDs) (Cu-GDYNT) are prepared using the electrospun polyacrylonitrile nanofibers collected on the surface of electrolytic Cu foil as templates. The diameter of the Cu-GDYNT is controllable and the uniform size of the embedded Cu QDs is about 2.2 nm. And then, the uniformly dispersed and highly active supported catalysts of ruthenium nanoparticles (Ru<sub>x</sub>/Cu-GDYNT) are produced using the Cu-GDYNT as the support. Among them, the Ru<sub>3</sub>/Cu-GDYNT exhibit outstanding HER performance at all pH levels. Only 17, 67 and 83 mV overpotential is required to reach a current density of 10 mA cm<sup>−2</sup> in 1.0 M KOH, 0.5 M H<sub>2</sub>SO<sub>4</sub> and 1.0 M neutral PBS solutions, respectively. The sample exhibits 3000 CV cycle stability and 20 h continuous electrolysis without performance degradation in an alkaline medium. This work provides a new idea for constructing the GDY-supported metal nanocatalysts. |
| first_indexed | 2024-04-24T17:57:57Z |
| format | Article |
| id | doaj.art-1506162fdaa94b7e88208f866f946165 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-24T17:57:57Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-1506162fdaa94b7e88208f866f9461652024-03-27T13:57:18ZengMDPI AGMolecules1420-30492024-03-01296141010.3390/molecules29061410Preparation and Support Effect of Graphdiyne Nanotubes with Abundant Cu Quantum DotsYan Lv0Wenzhou Wang1Zhangwei Li2Fucang Liang3State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaState Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaState Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaState Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, ChinaGraphdiyne (GDY) is considered a very attractive support for metal nanocatalysts due to its unique structure and superior properties. The metal–GDY interaction can significantly affect the performance of catalysts. Herein, GDY nanotubes abundant in in situ formed Cu quantum dots (QDs) (Cu-GDYNT) are prepared using the electrospun polyacrylonitrile nanofibers collected on the surface of electrolytic Cu foil as templates. The diameter of the Cu-GDYNT is controllable and the uniform size of the embedded Cu QDs is about 2.2 nm. And then, the uniformly dispersed and highly active supported catalysts of ruthenium nanoparticles (Ru<sub>x</sub>/Cu-GDYNT) are produced using the Cu-GDYNT as the support. Among them, the Ru<sub>3</sub>/Cu-GDYNT exhibit outstanding HER performance at all pH levels. Only 17, 67 and 83 mV overpotential is required to reach a current density of 10 mA cm<sup>−2</sup> in 1.0 M KOH, 0.5 M H<sub>2</sub>SO<sub>4</sub> and 1.0 M neutral PBS solutions, respectively. The sample exhibits 3000 CV cycle stability and 20 h continuous electrolysis without performance degradation in an alkaline medium. This work provides a new idea for constructing the GDY-supported metal nanocatalysts.https://www.mdpi.com/1420-3049/29/6/1410graphdiyne nanotubesCu quantum dotssupporthydrogen generation |
| spellingShingle | Yan Lv Wenzhou Wang Zhangwei Li Fucang Liang Preparation and Support Effect of Graphdiyne Nanotubes with Abundant Cu Quantum Dots Molecules graphdiyne nanotubes Cu quantum dots support hydrogen generation |
| title | Preparation and Support Effect of Graphdiyne Nanotubes with Abundant Cu Quantum Dots |
| title_full | Preparation and Support Effect of Graphdiyne Nanotubes with Abundant Cu Quantum Dots |
| title_fullStr | Preparation and Support Effect of Graphdiyne Nanotubes with Abundant Cu Quantum Dots |
| title_full_unstemmed | Preparation and Support Effect of Graphdiyne Nanotubes with Abundant Cu Quantum Dots |
| title_short | Preparation and Support Effect of Graphdiyne Nanotubes with Abundant Cu Quantum Dots |
| title_sort | preparation and support effect of graphdiyne nanotubes with abundant cu quantum dots |
| topic | graphdiyne nanotubes Cu quantum dots support hydrogen generation |
| url | https://www.mdpi.com/1420-3049/29/6/1410 |
| work_keys_str_mv | AT yanlv preparationandsupporteffectofgraphdiynenanotubeswithabundantcuquantumdots AT wenzhouwang preparationandsupporteffectofgraphdiynenanotubeswithabundantcuquantumdots AT zhangweili preparationandsupporteffectofgraphdiynenanotubeswithabundantcuquantumdots AT fucangliang preparationandsupporteffectofgraphdiynenanotubeswithabundantcuquantumdots |