Hexafluorophosphate additive enables durable seawater oxidation at ampere-level current density DOI Creative Commons
Xun He, Yongchao Yao, Limei Zhang

и другие.

Nature Communications, Год журнала: 2025, Номер 16(1)

Опубликована: Май 29, 2025

Abstract Direct seawater electrolysis at ampere-level current densities, powered by coastal/offshore renewables, is an attractive avenue for sustainable hydrogen production but undermined chloride-induced anode degradation. Here we demonstrate the use of hexafluorophosphate (PF₆⁻) as electrolyte additive to overcome this limitation, achieving prolonged operation over 5,000 hours 1 A cm −2 and 2300 2 using NiFe layered double hydroxide (LDH) anode. Together with experimental findings, PF₆⁻ can intercalate into LDH interlayers adsorb onto electrode surface under applied electric field, blocking Cl⁻ stabilizing Fe prevent segregation. The constant-potential molecular dynamics simulations further reveal accumulation high concentrations PF 6 − on that effectively exclude Cl , mitigating corrosion. Our work showcases synchronous interlayer engineering single non-oxygen anion species enable rejection marks a crucial step forward in electrolysis.

Язык: Английский

Hydrogen energy storage in maritime operations: A pathway to decarbonization and sustainability DOI
Ravikumar Jayabal

International Journal of Hydrogen Energy, Год журнала: 2025, Номер 109, С. 1133 - 1144

Опубликована: Фев. 16, 2025

Язык: Английский

Процитировано

3

Green Hydrogen Revolution: Advancing Electrolysis, Market Integration, and Sustainable Energy Transitions Towards a Net-Zero Future DOI Creative Commons

V. Sakthi Murugan,

G Lakshmikanth,

N. Balaji

и другие.

Results in Engineering, Год журнала: 2025, Номер unknown, С. 104849 - 104849

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

2

Modulating Selectivity and Stability of the Direct Seawater Electrolysis for Sustainable Green Hydrogen Production DOI Creative Commons
Dazhi Yao, Chun Liu, Yanzhao Zhang

и другие.

Materials Today Catalysis, Год журнала: 2025, Номер unknown, С. 100089 - 100089

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

1

High-Intensity Interfacial Electric Fields between Co-catalysts and Semiconductor: A Determinant Factor in Enhancing Photocatalytic Hydrogen Production DOI

Guanyu Wu,

Xue Gao, Peipei Sun

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125265 - 125265

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

1

Advancements in Seawater Electrocatalysis for Renewable Energy Conversion and Resource Extraction DOI Creative Commons
Zheng Dai, Yihan Zhang, Huashuai Hu

и другие.

ChemElectroChem, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Abstract Given the rising global energy demand and increasing emphasis on environmental protection, development of renewable conversion technologies to replace fossil fuels has emerged as a critical research priority. Among these technologies, seawater electrocatalysis garnered attention high‐efficiency environmentally friendly approach. This review summarizes recent advancements in for resource extraction, covering reaction mechanisms hydrogen production via electrolysis progress electrocatalytic materials. Specifically, we discuss materials based non‐precious metals, precious nonmetals, bifunctional electrocatalysts. Additionally, inorganic pollutants (e. g., hydrazine, sulfides) organic compounds urea, microplastics) is reviewed, emphasizing its significance marine utilization remediation. We also explore electrochemical strategies extracting valuable metal ions, such calcium, magnesium, uranium, lithium, abundant seawater. Although faces challenges terms cost technical scalability, technology interdisciplinary collaboration offer promising prospects commercialization with potential make substantial contributions sustainable development.

Язык: Английский

Процитировано

0

Crystal facet-induced reconstruction of MoN-supported Co pre-catalysts for optimized active sites and enhanced alkaline hydrogen evolution DOI
Chaoran Pi,

Difei Leng,

Xuming Zhang

и другие.

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 687, С. 461 - 470

Опубликована: Фев. 15, 2025

Язык: Английский

Процитировано

0

Sliver nanoparticles decorated ultrathin CoMo LDH nanosheets as a hierarchical self-supported electrodes with high corrosion resistance for efficient seawater electrolysis DOI

Qiang Wu,

Jinsong Cheng,

Qi Sun

и другие.

Journal of Alloys and Compounds, Год журнала: 2025, Номер unknown, С. 180682 - 180682

Опубликована: Апрель 1, 2025

Язык: Английский

Процитировано

0

An Interlayer Anchored NiMo/MoO2 Electrocatalyst for Hydrogen Evolution Reaction in Anion Exchange Membrane Water Electrolysis at High Current Density DOI
Gaoxin Lin, Anrui Dong, Zhiheng Li

и другие.

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Abstract Noble metal‐free electrodes for anion exchange membrane water electrolysis (AEM‐WE) operating at high current densities are critical sustainable hydrogen production. However, the massive amount of bubbles resulted in insufficient mass transfer and unevenly distributed local stress, which poses a major challenge designing an efficient robust evolution catalyst. Herein, facile chemical corrosion method is developed to synthesize interlayer‐anchored NiMo/MoO 2 catalyst on nickel foam (NF) substrate (NiMo/Int/NF) with activity (overpotential 80.2 ± 3.53 mV) durability (stable 5000 h) 1000 mA cm −2 1 m KOH. The interlayer tightly anchors catalytic layer substrate, providing compressive strength strong adhesion mitigate bubble shock density. In situ Raman X‐ray diffraction analyses reveal that heterostructural can accelerate reaction increased pH component utilization. Using NiMo/Int/NF as cathode, assembled noble AEM‐WE device exhibits low cell voltage 1.78 V (significantly lower than Pt/C‐catalyzed (1.94 V)) while also showing excellent stability 3000 h.

Язык: Английский

Процитировано

0

Multi-defect Pd-based catalyst doped with rare earth element La for ethanol-assisted energy-saving hydrogen production DOI

Zekai Shen,

Xuewen Wei, Mengxiao Wang

и другие.

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 697, С. 137969 - 137969

Опубликована: Май 22, 2025

Язык: Английский

Процитировано

0

In Situ Engineering a Dual‐Anion Rejection Interface for High‐Efficiency Oxygen Evolution in Alkaline Seawater DOI

Youcai Che,

Jingzhi Shang, Yuhao Zhang

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 7, 2025

Abstract Seawater electrolysis is pivotal for sustainable hydrogen production, yet chloride‐induced catalyst corrosion severely hinders its efficiency. Here, a (Mo, Co)P x electrocatalyst via two‐step hydrothermal‐phosphorization strategy engineered, enabling in situ formation of dynamic dual‐anion (MoO 4 2 ⁻/PO 3 ⁻) Cl − ‐rejection interface. This tailored interface effectively blocks adsorption while preserving hydroxyl accessibility, significantly enhancing resistance alkaline seawater. The optimized delivers exceptional oxygen evolution reaction performance seawater electrolysis, achieving ultralow overpotentials 213 and 360 mV to reach current densities 10 1000 mA cm −2 , respectively. Remarkably, the with an situ‐generated rejection layer demonstrates durability, exhibiting only 20mV degradation during 480‐h stability test under high‐current conditions. In Raman spectroscopy, attenuated total reflectance surface‐enhanced infrared absorption density functional theory calculations demonstrate that not enhances but also promotes rapid surface reconstruction Co species interfacial water adsorption, thereby suppressing competitive chlorine reactions. work provides rational designing durable electrocatalysts situ‐engineered anion‐rejection interfaces, advancing efficient electrolysis.

Язык: Английский

Процитировано

0