S-doped copper selenide thin films synthesized by chemical bath deposition for photoelectrochemical water splitting DOI Creative Commons

Hafiza Komal Zafar,

Manzar Sohail, Ayman Nafady

et al.

Applied Surface Science, Journal Year: 2023, Volume and Issue: 641, P. 158505 - 158505

Published: Sept. 18, 2023

The utilization of fossil fuels to meet ever-increasing energy demands is causing a significant threat the Earth's climate and its inhabitants. To address this issue, photoelectrochemical (PEC) water splitting has emerged as promising solution produce oxygen (O2) hydrogen (H2) in cost-effective, environmentally friendly, clean, renewable manner. In study, we present development cost-effective Cu3Se2 S-doped thin films on Fluorine-doped Tin Oxide (FTO) substrates using chemical bath deposition (CBD) process enhance efficiency PEC oxidation oxygen. X-Ray Diffraction (XRD) pattern confirms presence single-phase tetragonal crystal structure with noticeable shift characteristic (2 1 1) reflection towards higher 2θ value, from 38.1° 38.4°, indicating successful doping S films. further validate lattice, X-ray photoelectron spectroscopy (XPS), dispersive (EDX), Fourier transform infrared (FTIR), Raman Spectroscopy were employed. TEM reveals granular an average particle size 7–8 nm, which consistent crystallite determined by XRD. Furthermore, valence band conduction edge positions are found be 1.56 −0.57 eV, respectively. increased gap Cu3Se2, 1.97 2.15 thus confirming bending upon doping. specific surface areas (SSA) pristine 5.03 111.48 m2g−1, respectively, showing twenty-two-fold increase performance materials was evaluated through chopped chronoamperometry (CA), linear sweep voltammetry (LSV), electrochemical impedance (EIS), Mott-Schottky (M-S) analysis. prepared under optimum conditions, exhibited photocurrent density difference 880 µA cm−2, 6 times greater than for film. results indicate negative slope, implying p-type conductivity, lower flat potential value 0.33 V vs. RHE. Our approach provides green fabricate producing CBD.

Language: Английский

Urea catalytic oxidation for energy and environmental applications DOI

Xintong Gao,

Shuai Zhang, Pengtang Wang

et al.

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: 53(3), P. 1552 - 1591

Published: Jan. 1, 2024

This review evaluates state-of-the-art advances in electrocatalytic and photo(electro)catalytic urea oxidation from fundamentals materials to energy environmental applications.

Language: Английский

Citations

91

Challenges in photocatalytic hydrogen evolution: Importance of photocatalysts and photocatalytic reactors DOI Creative Commons

Abhishek Burri,

A. Jayarama,

Arjun Sunil Rao

et al.

International Journal of Hydrogen Energy, Journal Year: 2024, Volume and Issue: 81, P. 1442 - 1466

Published: Aug. 5, 2024

Language: Английский

Citations

45

Advances and challenges in the modification of photoelectrode materials for photoelectrocatalytic water splitting DOI

Longyue Yang,

Fang Li, Quanjun Xiang

et al.

Materials Horizons, Journal Year: 2024, Volume and Issue: 11(7), P. 1638 - 1657

Published: Jan. 1, 2024

With the increasing consumption of fossil fuels, development clean and renewable alternative fuels has become a top priority. Hydrogen (H

Language: Английский

Citations

28

Frontiers in Photoelectrochemical Catalysis: A Focus on Valuable Product Synthesis DOI Creative Commons
Marshet Getaye Sendeku, Tofik Ahmed Shifa, Fekadu Tsegaye Dajan

et al.

Advanced Materials, Journal Year: 2024, Volume and Issue: 36(21)

Published: Feb. 11, 2024

Abstract Photoelectrochemical (PEC) catalysis provides the most promising avenue for producing value‐added chemicals and consumables from renewable precursors. Over last decades, PEC catalysis, including reduction of feedstock, oxidation organics, activation functionalization C─C C─H bonds, are extensively investigated, opening new opportunities employing technology in upgrading readily available resources. However, several challenges still remain unsolved, hindering commercialization process. This review offers an overview targeted at synthesis high‐value sustainable First, fundamentals evaluating reactions context product both anode cathode recalled. Then, common photoelectrode fabrication methods that have been employed to produce thin‐film photoelectrodes highlighted. Next, advancements systematically reviewed discussed conversion various feedstocks highly valued chemicals. Finally, prospects field presented. aims facilitating further development precursors products other pharmaceuticals.

Language: Английский

Citations

28

Visible-Light-Driven Highly Selective 5-Hydroxymethylfurfural Upgrading and H2 Generation via Atomically Dispersed Ni Sites on ZnIn2S4 Nanosheets DOI
Shenghe Si,

Piyu Gong,

Xiaolei Bao

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(11), P. 8343 - 8352

Published: May 14, 2024

Solar-driven biomass upgrading coupled with H2 generation is promising for achieving carbon neutrality. However, identification of the active sites simultaneous photocatalytic redox reactions remains elusive at atomic level. Herein, through rational construction atomically dispersed Ni on ZnIn2S4 nanosheets (Ni1/ZIS), we decipher reactive that enable high-performance 5-hydroxymethylfurfural (HMF) oxidation evolution. Under visible-light irradiation, Ni1/ZIS greatly outperforms its pristine ZIS counterpart and can deliver high selectivity (>97%) 2,5-diformylfuran (DFF), along high-activity DFF production (394 μmol g–1 h–1) evolution (342.2 in a near stoichiometric ratio. Combined detailed experiments theoretical calculations uncover species act as HMF oxidation, while S are favored This work provides new insights into development artificial photosynthesis value-added chemicals from via sites.

Language: Английский

Citations

24

Magnetic-field-induced activation of S-scheme heterojunction with core–shell structure for boosted photothermal-assisted photocatalytic H2 production DOI
Pengyu Hao,

Pengnian Shan,

Jialin Lu

et al.

Fuel, Journal Year: 2024, Volume and Issue: 373, P. 132394 - 132394

Published: July 2, 2024

Language: Английский

Citations

23

Improving Charge Transfer Beyond Conventional Heterojunction Photoelectrodes: Fundamentals, Strategies and Applications DOI
Jiaming Miao, Yilong Yang, Peng Cui

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(46)

Published: June 20, 2024

Abstract Photoelectrochemical (PEC) cells are regarded as a promising approach to convert sunlight chemical fuels, whereas the serious photo‐induced charge recombination of semiconductor photoelectrode hinders its solar conversion efficiency. Over past few decades, designing and constructing heterojunction photoelectrodes via thermodynamically favorable transfer have been proven be effective in boosting separation. However, conventional construction strategy generally introduces incompatible, nonconformal, or defective interfaces, leaving considerable room improve efficiency photoelectrodes. To compensate for unsatisfied efficiency, some novel strategies, such grain boundary engineering, band gap field‐effected etc., adopted provide additional driving force, which significantly improves In this review, these strategies discussed beyond construction, prospects development applications photoanodes also proposed.

Language: Английский

Citations

17

Self‐Accelerating H2 Evolution Activity by In Situ Transformation on Noble‐Metal‐Free Photocatalyst of Covalent Organic Framework and Cu2O Composite DOI

Yu‐Han Liu,

Xiaoyu Chu, Yanxia Jiang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(25)

Published: Feb. 9, 2024

Abstract It is expected that the activity of photocatalysts can remain same or decrease as little possible in photocatalysis reaction. Herein, for first time, a self‐accelerating H 2 production noble‐metal‐free Cu O/TpPa‐2‐COF photocatalyst reported. shows beginning rate 4.41 mmol h −1 g under visible light illuminance, while kept increasing to 27.27 after 25 reaction, which 6.2 times higher than and reaches record high. confirmed part O situ transformed 0 photocatalytic acting cocatalyst promotes separation photogenerated charge carriers. Further density functional theory calculations demonstrate Schottky barrier height Cu‐Cu (111) interface much smaller Pt‐Cu (111), supporting its more efficient effect with Pt cocatalyst.

Language: Английский

Citations

16

Functionalization of Nanomaterials for Energy Storage and Hydrogen Production Applications DOI Open Access
Mohamed Salaheldeen, Ahmed M. Abu‐Dief,

Tarek El‐Dabea

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(4), P. 768 - 768

Published: Feb. 10, 2025

This review article provides a comprehensive overview of the pivotal role that nanomaterials, particularly graphene and its derivatives, play in advancing hydrogen energy technologies, with focus on storage, production, transport. As quest for sustainable solutions intensifies, use nanoscale materials to store solid form emerges as promising strategy toward mitigate challenges related traditional storage methods. We begin by summarizing standard methods producing modified derivatives at their impact structural characteristics properties. The highlights recent advancements capacities achieved through innovative nanocomposite architectures, example, multi-level porous structures containing embedded nickel particles dimensions. discussion covers distinctive these expansive surface area spillover effect, which enhance effectiveness applications, including supercapacitors batteries. In addition capabilities, this explores nanomaterials efficient catalysts evolution reaction (HER), emphasizing potential metal oxides other composites boost production. integration transport systems is also examined, showcasing innovations safety efficiency. we move economy, underscores urgent need continued research aimed optimizing existing developing novel nanostructured systems. Addressing primary future directions, aims serve roadmap enable scientists industry experts maximize capabilities transforming hydrogen-based systems, thus contributing significantly global sustainability efforts.

Language: Английский

Citations

2

Review of photoelectrochemical water splitting: From quantitative approaches to effect of sacrificial agents, oxygen vacancies, thermal and magnetic field on (photo)electrolysis DOI
Mohamed El Ouardi, Ayoub El Idrissi, Madjid Arab

et al.

International Journal of Hydrogen Energy, Journal Year: 2023, Volume and Issue: 51, P. 1044 - 1067

Published: Sept. 26, 2023

Language: Английский

Citations

39