Homo‐Nuclear Hetero‐Atomic Conjugated Reticular Oligomers for Heterojunction: A Novel “Electron Medium” for Panel Photoelectrocatalysis DOI Creative Commons
Ruijuan Zhang, Boying Zhang, Haining Liu

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

Abstract A substantial challenge in employing covalent organic frameworks (COFs) for photoelectrochemical (PEC) water splitting lies improving their solution‐processability while concurrently facilitating the transfer of charges and mass to catalytic sites. Herein, we synthesize a solution‐processable conjugated reticular oligomers (CROs), further embed ruthenium (Ru) into CRO, forming CRO‐Ru with homo‐nuclear hetero‐atomic. Thereafter, CRO construct an organic–organic heterojunction membrane at nanoscale. This design achieves perfect lattice matching, significantly reducing energy barrier transfer, effectively lowering recombination rate charge carriers. The optimized photocathode, CuI/CRO‐Bpy:CRO‐Bpy‐Ru‐1:1+P3HT/SnO 2 /Pt, exhibits efficiency 111.0 µA cm −2 0.4 V versus reversible hydrogen electrode (RHE). Compared original bulk COFs CROs, is improved. apparent improvements carrier separation are responsible high PEC activity. In heterojunction, incorporation CRO‐Bpy‐Ru longer excited‐state lifetime built‐in electric field has accelerated photo‐induced electron from conduction band (CB) CRO‐Bpy valence (VB) CRO‐Bpy‐Ru, suppressing charges. These findings offer significant guidance optimization high‐performance catalysts.

Language: Английский

Exfoliated 2D Nanosheet‐Based Conjugated Polymer Composites with P‐N Heterojunction Interfaces for Highly Efficient Electrocatalytic Hydrogen Evolution DOI Creative Commons
Cheng‐Yu Tsai,

Hsu‐Sheng Li,

Kumasser Kusse Kuchayita

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: July 31, 2024

We have achieved a significant breakthrough in the preparation and development of two-dimensional nanocomposites with P-N heterojunction interfaces as efficient cathode catalysts for electrochemical hydrogen evolution reaction (HER) iodide oxidation (IOR). P-type acid-doped polyaniline (PANI) N-type exfoliated molybdenum disulfide (MoS

Language: Английский

Citations

5
Surface coverage and reconstruction analyses bridge the correlation between structure and activity for electrocatalysis DOI Creative Commons
Zhongyuan Guo, Tianyi Wang, Jiang Xu

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Electrocatalysis is key to realizing a sustainable future for our society. However, the complex interface between electrocatalysts and electrolytes presents an ongoing challenge in electrocatalysis, hindering accurate identification of effective/authentic structure-activity relationships determination favourable reaction mechanisms. Surface coverage reconstruction analyses are important address each conjecture and/or conflicting viewpoint on surface-active phases their corresponding electrocatalytic origin,

Language: Английский

Citations

5
Facile Aqueous Route to Large-Scale Superhydrophilic TiO2-Incorporated Graphitic Carbon Nitride-Coated Ni(OH)2 and Ni2P Nano-Architecture Arrays as Efficient Electrocatalysts for Enhanced Hydrogen Production DOI
Zahed Shami,

Seyed Arad Derakhshan,

Rezgar Ahmadi

et al.

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

Water splitting by an electrochemical method to generate hydrogen gas is economic and green approach resolve the looming energy environmental crisis. Designing a composite electrocatalyst having integrated multichannel charge separation, robust stability, low-cost facile scalability could be considered address issue of evolution. Herein, we report superhydrophilic, noble-metal-free bimetallic nanostructure TiO2/Ni2P coated on graphitic polyacrylonitrile carbon fibers (g-C/TiO2/Ni2P) using hydrothermal followed phosphorylation. In aqueous-based route, PAN dissolved in water presence ZnCl2, wet-spinning prepare scalable PAN/ZnCl2 fibers. The nitrogen-contained porous are prepared via pyrolysis fibers; now ZnCl2 acts as volatile porogen form matrix structures. Finally, as-prepared electrochemically activated incorporating active sites. materials formed this work show excellent electrocatalytic activity for evolution reaction. as-synthesized g-C/TiO2/Ni2P catalyst shows low overpotential, its improved, efficiency better than that commercial Pt/C catalyst. At current density −10 mA/cm2, overpotential 55 mV, while 77 mV. Our provides aqueous route with no need noble metals can potential alternative

Language: Английский

Citations

0
Co9S8/CoTe2 n‐n Type Heterojunction: A Heterogenic Interfacial Integration of Co9S8 and CoTe2 Phases for Energy‐Efficient Hydrazine Oxidation Assisted Hydrogen Production DOI Open Access
Viplove Mishra, Athma E. Praveen,

Diya Raveendran

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 26, 2025

Abstract Controlled and optimized heterogenic interfacial coupling is the key to enhance electrochemical performance. Herein, for first time, telluride‐based Co 9 S 8 /CoTe 2 heterostructure reported as a bifunctional catalyst energy‐efficient H generation. Detailed investigations suggest that leads superior performance of heterostructure. Furthermore, it displays excellent hydrazine oxidation reaction (HzOR) at industrial‐level current density (500 mA cm −2 @ 338 mV) using an electrochemically neutral carbon paper substrate. The overall electrooxidation‐assisted water splitting (OHzWS) cell couple 10 0.22 V, which 1.60 V less than conventional splitting. Band energy profiles reveal n‐n type heterojunction formation between CoTe phases. work function difference phases results in impulsive electron flow from phase creation built‐in electric field. This prompts kinetics HzOR hydrogen evolution (HER) by enabling faster charge transport interface. DFT supports experimental findings, Gibbs's free profile studies indicate interface favorable compared .

Language: Английский

Citations

0
Self‐Powered Glucose Biosensor Based on Non‐Enzymatic Biofuel Cells by Au Nanocluster/Pd Nanocube Heterostructure and Fe3C@C‐Fe Single‐Atom Catalyst DOI Open Access

Wenli Lei,

Shuang Zhang,

Jiaxi Shu

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract Self‐powered biosensors (SPBs) based on biofuel cells (BFCs) use electrical output as a sensing signal without the need of external power supplies, providing feasible approach to constructing miniaturized implantable or portable devices. In this work, novel nanozyme gold nanoclusters/palladium nanocubes (AuNCs/PdNCs) heterostructure is successfully fabricated develop an innovatively self‐powered and non‐enzymatic glucose system. The AuNCs/PdNCs with oxidase (GOD)‐like activity exhibits superior electrocatalytic performance toward glucose. BFCs‐based SPBs system, established (anodic catalyst) single atomic Fe sites coupled carbon‐encapsulated 3 C crystals (Fe C@C‐Fe SACs cathodic platform, exceptional sensitivity 0.151 µW cm −2 m −1 (3.4 times higher than PdNCs), outstanding selectivity robust stability. system can be attributed synergistic cooperation between PdNCs AuNCs.

Language: Английский

Citations

0
Surface Modification of Ti3CN MXene and Their Enhanced Performance in Photodetection DOI Open Access
Mingli Qin,

Jiale Ai,

Artem V. Kuklin

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

As a typical hetero-MXene, Ti3CN MXene has attracted great attentions owing to its ultrafast carrier dynamic and unique nonlinear optical response. However, the photo-response of pristine is unsatisfied due fast recombination. Herein, multi-layer modified with well-dispersed Bi quantum dots, where Ti3CN@Bi heterojunction can not only tune absorption but also introduce energy transfer channels. The built-in electric field endows self-powered response behavior performance be further enhanced by tuning external conditions. demonstrated, Ti3CN@Bi-based photodetectors exhibit high photocurrent density (18.24 µA cm-2) excellent photoresponsivity (18.32 mA W-1). In addition, device shows outstanding stability (0.002% for each cycle), holding potentials practical applications. Hence, this work highlights broad prospects MXene-based heterojunction, provides value other optoelectronic

Language: Английский

Citations

0
Steering the electronic transfer between Ir nanoparticles and Ni(OH)2/FeOOH for overall water splitting in both alkaline and neutral media DOI

Manyuan Gan,

Yanhui Song,

Jinjia Wei

et al.

Applied Surface Science, Journal Year: 2025, Volume and Issue: unknown, P. 163249 - 163249

Published: April 1, 2025

Language: Английский

Citations

0
Amplifying bactericidal activity: Surfactant-mediated AgBr thin film coating over two-dimensional vertically aligned ZnO nanorods for dark-light dual mode disinfection DOI

Pranathi Tata,

Ramakrishnan Ganesan, Jayati Ray Dutta

et al.

Journal of Photochemistry and Photobiology B Biology, Journal Year: 2023, Volume and Issue: 250, P. 112815 - 112815

Published: Nov. 20, 2023

Language: Английский

Citations

9
High-entropy layered hydroxide for efficient and sustainable seawater oxidation DOI Creative Commons
Santanu Kumar Pal, Sakila Khatun, Poulomi Roy

et al.

Materials Advances, Journal Year: 2024, Volume and Issue: 5(12), P. 5156 - 5166

Published: Jan. 1, 2024

High-entropy NiCrCoFeMo layered hydroxide has been identified as a potential electrocatalyst for sustainable seawater oxidation with high activity and great corrosion resistance ability.

Language: Английский

Citations

3
Enhancing electrocatalytic nitrogen fixation over core-shell P-Sb2S3/MoS2 heterojunction by vacancy and interface modulation DOI
Xin‐Hao Li, Xin Wang,

Abing Guo

et al.

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 678, P. 1143 - 1152

Published: Sept. 4, 2024

Language: Английский

Citations

3