| Title: |
Industrial‐Scale Seawater Splitting at Engineered Interface of Boron‐Doped Cobalt Sulfide/Metal–Organic Framework Nanosheets Heterostructure |
| Authors: |
Seyedmahdi Mousavi; Hafiz Adil Qayyum; Muhammad Waqas Khan; Sharafadeen Gbadamasi; Suraj Loomba; Azadeh Nilghaz; Muhammad Haris; Chamali Kaushalya Malaarachchi; Vasundhara Nettem; Anton Tadich; Lars Thomsen; Yongxiang Li; Asif Mahmood; Nasir Mahmood |
| Source: |
Small Science, Vol 6, Iss 3, Pp n/a-n/a (2026) |
| Publisher Information: |
Wiley-VCH |
| Publication Year: |
2026 |
| Collection: |
Directory of Open Access Journals: DOAJ Articles |
| Subject Terms: |
ampere‐level stability; electrocatalytic seawater splitting; heterointerface engineering; metal sulfide; metal–organic framework; oxygen evolution reaction; Materials of engineering and construction. Mechanics of materials; TA401-492 |
| Description: |
Seawater electrolysis faces several significant obstacles, including low energy efficiency and anode corrosion due to chlorine chemistry, which limit its practical potential. To overcome this, we developed a catalyst composed of boron‐doped CoS2 protected by metal–organic framework sheets (MOFs) (B‐CoS2/MOF heterostructures). Introducing B atoms into the CoS2 layer tunes the surface chemistry to promote adhesion of Ni–MOF. Density functional theory calculations indicate a strong interaction at the heterointerface, with a binding energy of −4.13 eV, where the MOF anchors onto the B‐CoS2 surface through a NiS bond measuring 2.08 Å, confirming the presence of an ionic bond. This strong heterointerface promotes OH− adsorption while repelling Cl− ions due to the presence of SO42‐, effectively mitigating chlorine‐induced degradation. Therefore, the B‐CoS2/MOF catalyst achieves an industrial‐scale current density of 1.0 A cm−2 at an overpotential of 542 mV in alkaline seawater and operates stably for 600 h, hence suggesting the potential for designing cost‐effective, chlorine‐resistant systems for practical seawater splitting. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
https://doi.org/10.1002/smsc.202500497; https://doaj.org/toc/2688-4046; https://doaj.org/article/2625949c464c47a8a92dbdbd9ae4915b |
| DOI: |
10.1002/smsc.202500497 |
| Availability: |
https://doi.org/10.1002/smsc.202500497; https://doaj.org/article/2625949c464c47a8a92dbdbd9ae4915b |
| Accession Number: |
edsbas.FDED849F |
| Database: |
BASE |