Crystalline Ru-Decorated MOF-Derived Amorphous CoMo-LDH Nanosheet Arrays as Bifunctional Catalysts for Overall Natural Seawater Electrolysis.
| Title: | Crystalline Ru-Decorated MOF-Derived Amorphous CoMo-LDH Nanosheet Arrays as Bifunctional Catalysts for Overall Natural Seawater Electrolysis. |
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| Authors: | Tran TTN; Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam.; Vietnam National University, Ho Chi Minh City 700000, Viet Nam.; Le TA; Faculty of Chemical Engineering, School of Chemistry and Life Sciences, Hanoi University of Science and Technology, Hanoi 100000, Vietnam.; Dinh NTT; Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam.; Vietnam National University, Ho Chi Minh City 700000, Viet Nam.; Hai ND; Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam.; Vietnam National University, Ho Chi Minh City 700000, Viet Nam.; Truong TK; Department of Mechanical Engineering, Hanbat National University (HBNU), 125 Dongseo-daero, Yuseong-gu, Daejeon 34158, Republic of Korea.; Yu J; Key Laboratory of Rare Earths, Chinese Academy of Sciences, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, PR China.; Peng L; Key Laboratory of Rare Earths, Chinese Academy of Sciences, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou 341119, PR China.; Nguyen CC; Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam.; Vietnam National University, Ho Chi Minh City 700000, Viet Nam.; Tran NQ; Center for Innovative Materials and Architectures, Ho Chi Minh City 700000, Viet Nam.; Vietnam National University, Ho Chi Minh City 700000, Viet Nam. |
| Source: | ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2024 Oct 09; Vol. 16 (40), pp. 53675-53687. Date of Electronic Publication: 2024 Sep 24. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: American Chemical Society Country of Publication: United States NLM ID: 101504991 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1944-8252 (Electronic) Linking ISSN: 19448244 NLM ISO Abbreviation: ACS Appl Mater Interfaces Subsets: MEDLINE; PubMed not MEDLINE |
| Imprint Name(s): | Original Publication: Washington, D.C. : American Chemical Society |
| Abstract: | The construction of an amorphous/crystalline heterostructure of MOF-derived electrocatalysts offers an intriguing pathway to improve hydrogen production efficiency, but it has received little attention. Here, we report crystalline Ru-decorated MOF-derived amorphous CoMo-LDH nanosheet arrays as highly active and robust bifunctional electrocatalysts for natural seawater electrolysis. Benefiting from the abundant interfaces, the Ru-CoMo-LDH catalyst exhibits excellent activity toward OER under fresh and natural seawater, in particular; it requires only 257 and 406 mV overpotential at 10 and 500 mA cm-2 in 1 M KOH + Seawater, outperforming the benchmark RuO2. In addition, this electrocatalyst is an eminently active and stable HER in various electrolytes, emphasizing its outstanding bifunctional capability. Strikingly, in full-cell overall water splitting in natural seawater test, Ru-CoMo-LDH ∥ Pt/C exhibits superior electrochemical behavior (i.e., overpotential of 1.5545 and 1.731 V to obtain the current density of 10 and 200 mA cm-2, respectively) and high stability. These excellent electrocatalytic activities highlighted the synergistic effects of intimated amorphous/crystalline junctions, which provide a rich population of exposed active sites and enhance electron transport. This, in turn, lowers the adsorption energy barrier of intermediates, leading to improved performance. Our work proves that designing an amorphous/crystalline heterointerface is a promising platform for further enhancing the hydrogen generation efficiency. |
| Contributed Indexing: | Keywords: amorphous; crystalline; interfacial; natural seawater; water splitting |
| Entry Date(s): | Date Created: 20240924 Latest Revision: 20241010 |
| Update Code: | 20260130 |
| DOI: | 10.1021/acsami.4c09232 |
| PMID: | 39315970 |
| Database: | MEDLINE |
Journal Article