3D ordered RuO 2/WO 3 heterostructure inverse opal arrays for highly-active and stable acidic oxygen evolution reaction DOI Creative Commons

Runlong Jia,

Yan Tan,

Aoshuang Li

et al.

Deleted Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Development of highly active and stable acidic oxygen evolution reaction catalyst is very important for efficient water splitting while remains challenging. Herein, we report a ordered RuO2/WO3 inverse opals (IOs) to address the bottleneck problem see-saw relationship between activity stability, in which crystalline corrosionresistant WO3 facilitates electron transport stabilizes RuO2, whereas lattice mismatch-induced amorphousdominated RuO2 provides abundant unsaturated coordination sites enhance (OER) activity. Consequently, IOs demonstrates outstanding OER performance terms low overpotential 180 mV reach 10 mA·cm–2, excellent stability maintaining 100 hours continuous test. Experimental characterizations density functional theory calculations reveal that interface coupling can spin polarization electrons increase overlaps electronic projected states Ru d orbitals metal O p intermediates, facilitating pathway switch from mechanism adsorbate mechanism, significantly decreases energy barrier process. Meanwhile, rich vacancies supports heterostructures could inhibit over-oxidation species, so as simultaneously.

Language: Английский

Reinforced lattice oxygen mechanism of NiFe-LDH@Fe2O3@NF by optimizing the adsorption of oxygen intermediates for efficient water electrolysis DOI
Yongming Luo,

Yingying He,

Jiarun Li

et al.

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 115497 - 115497

Published: Jan. 1, 2025

Language: Английский

Citations

1
Edge-Rich 3D Structuring of Metal Chalcogenide/Graphene with Vertical Nanosheets for Efficient Photocatalytic Hydrogen Production DOI

Dong‐Bum Seo,

Yeong Min Kwon, Jin Kim

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(22), P. 28613 - 28624

Published: May 24, 2024

Constructing pertinent nanoarchitecture with abundant exposed active sites is a valid strategy for boosting photocatalytic hydrogen generation. However, the controllable approach of an ideal architecture comprising vertically standing transition metal chalcogenides (TMDs) nanosheets on 3D graphene network remains challenging despite potential efficient production. In this study, we fabricated edge-rich structuring photocatalysts involving grown TMDs porous framework (referred to as Gr). 2D (MoS2 and WS2)/3D Gr heterostructures were produced by location-specific photon-pen writing metal–organic chemical vapor deposition maximum edge site exposure enabling reactivity. Vertically aligned Mo(W)S2/3D exhibited distinctly boosted production because caused synergetic impacts associated large specific surface area improved density in Mo(W)S2. The heterostructure corroborates optimum charge transport pathway rapidly separate photogenerated electron–hole pairs, allowing more electrons contribute generation reaction. Consequently, size-tailored showed superior rate 6.51 mmol g–1 h–1 MoS2/3D 7.26 WS2/3D graphene, respectively, which 3.59 3.76 times greater than that MoS2 WS2 samples. This study offers promising path vertical TMDs/graphene applications.

Language: Английский

Citations

7
Sublayer-Sulfur-Vacancy-Induced Charge Redistribution of FeCuS Nanoflower Awakening Alkaline Hydrogen Evolution DOI
Li Liu, Jie Xu, Jinming Cao

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(17), P. 7946 - 7954

Published: April 15, 2024

Advancing the progress of sustainable and green energy technologies requires improvement valid electrocatalysts for hydrogen evolution reaction (HER). Reconfiguring charge distribution through heteroatom doping-induced vacancy serves as an effective approach to implement high performance HER catalysts. Here, we successfully fabricated Fe-doped CuS (FeCuS) with sublayer sulfur judge its dissect activity origins. Density functional theory calculation further elucidates that primary factor contributing heightened is vacancies awaken redistribution. In addition effectively decreasing barrier associated Volmer step, it modulates adsorption/desorption capacity H*. As a result, intrinsic has significantly increased. Concretely, obtained FeCuS displays excellent catalytic performance, whose Tafel slope only 59 mV dec–1 overpotential (at 10 mA cm–2) low 71 in alkaline environment, surpassing majority previously documented catalysts scientific literature. This work shows construction by Fe doping can achieve redistribution precise tuning electronic structure; thereby, inert be transformed into highly efficient electrocatalysts.

Language: Английский

Citations

4
In situ evolved high-valence Co active sites enable highly efficient and stable chlorine evolution reaction DOI
Li Liu, Jie Xu, Xiaohui Yang

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 682, P. 528 - 539

Published: Dec. 2, 2024

Language: Английский

Citations

4
Iron and oxygen vacancies co-modulated adsorption evolution and lattice oxygen dual-path mechanism for enhanced ampere-level freshwater/seawater oxidation DOI

Faming Gao,

Xiwen Tao,

Li Hou

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: April 14, 2025

Abstract Conjointly activating metal and lattice oxygen sites to trigger the adsorbate evolution mechanisms coupled path holds promise for balancing activity stability in reaction (OER) catalysts, yet confronting significant challenges. Herein, we develop Fe species vacancies co-regulated Ni-(oxy)hydroxide (OV-Ni(Fe)OOH), derived from deep reconstruction of Fe-Ni2P/NiMoO4 pre-catalyst during OER, which realizes AEM-LOM dual-path mechanism with optimal metal-oxygen covalent bonds, as confirmed via in-situ mass/spectroscopy spectrometry chemical probes. Experimental details theoretical calculation analysis reveals enhanced AEM kinetics on Ni site co-regulation OV, featuring upshifted 3d band centers, while incorporation activates O preferable adsorption free energy LOM intermediates. Benefiting mechanism, activated catalyst affords an ampere-scale current density 1.0 A cm− 2 at low overpotentials 275 299 mV 1 M KOH + seawater, respectively, maintains seawater electrocatalysis 480 h anion exchange membrane water electrolysis (AEMWE) cell. This work demonstrates a strategy OER efficient stable electrocatalytic splitting under harsh conditions.

Language: Английский

Citations

0
Cu film-decorated NiCo LDH Nanosheets: Superior Electrocatalyst for Methanol and Urea Oxidation DOI
Animesh Roy,

Muhammad Faris Hamid,

Moonwoo La

et al.

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106054 - 106054

Published: Feb. 1, 2025

Language: Английский

Citations

0
Cation (Cr3+, Zn2+, Cu2+ and Mn3+) doping to construct high entropy spinel oxide nanocrystals for modulation of oxygen evolution reaction DOI

Bingxuan Zhai,

Jian Gong,

Leping Liu

et al.

Fuel, Journal Year: 2025, Volume and Issue: 393, P. 134992 - 134992

Published: March 9, 2025

Language: Английский

Citations

0
Manipulation of Electrochemical Surface Reconstruction on Spinel Oxides for Boosted Water Oxidation Reaction DOI
Yuxin Li, Zhe Zhang, Yilin Yang

et al.

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 8361 - 8389

Published: May 5, 2025

Language: Английский

Citations

0
Durable ruthenium oxide catalysts for water oxidation reaction DOI

Jixiang Jiao,

Ding Chen,

Hongyu Zhao

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 5, 2024

Language: Английский

Citations

3
3D ordered RuO 2/WO 3 heterostructure inverse opal arrays for highly-active and stable acidic oxygen evolution reaction DOI Creative Commons

Runlong Jia,

Yan Tan,

Aoshuang Li

et al.

Deleted Journal, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Development of highly active and stable acidic oxygen evolution reaction catalyst is very important for efficient water splitting while remains challenging. Herein, we report a ordered RuO2/WO3 inverse opals (IOs) to address the bottleneck problem see-saw relationship between activity stability, in which crystalline corrosionresistant WO3 facilitates electron transport stabilizes RuO2, whereas lattice mismatch-induced amorphousdominated RuO2 provides abundant unsaturated coordination sites enhance (OER) activity. Consequently, IOs demonstrates outstanding OER performance terms low overpotential 180 mV reach 10 mA·cm–2, excellent stability maintaining 100 hours continuous test. Experimental characterizations density functional theory calculations reveal that interface coupling can spin polarization electrons increase overlaps electronic projected states Ru d orbitals metal O p intermediates, facilitating pathway switch from mechanism adsorbate mechanism, significantly decreases energy barrier process. Meanwhile, rich vacancies supports heterostructures could inhibit over-oxidation species, so as simultaneously.

Language: Английский

Citations

1