Results 121 to 130 of about 5,194,121 (257)

An efficient and stable photoelectrochemical system with 9% solar-to-hydrogen conversion efficiency via InGaP/GaAs double junction

Nature Communications, 2019
Photoelectrochemical water-splitting devices with III-V semiconductors are efficient for solar-to-hydrogen conversion, but high costs and poor stability limit applications.
Purushothaman Varadhan, Hui-Chun Fu, Yu-Cheng Kao, Ray-Hua Horng, Jr-Hau He   +4 more
doaj   +1 more source

Synergistic Catalysis for Closed‐Loop Alcohol Refining: Concurrent H2 Evolution and Selective Oxidation

EcoEnergy, EarlyView.
Photocatalytic, electrocatalytic, and photoelectrocatalytic systems exhibit a clear synergistic integration logic in closed‐loop alcohol refining—concurrently driving hydrogen evolution and selective alcohol oxidation to enable the directed conversion of alcohols into high‐value chemicals.
Wei Ren, Jinhe Li, Banghu Wei, Mohamed Hussein Abdurahman, Ahmad Zuhairi Abdullah, Xiaohui Yu, Weikang Wang, Qinqin Liu   +7 more
wiley   +1 more source

Research Update: Photoelectrochemical water splitting and photocatalytic hydrogen production using ferrites (MFe2O4) under visible light irradiation

APL Materials, 2015
The utilization of solar light for the photoelectrochemical and photocatalytic production of molecular hydrogen from water is a scientific and technical challenge.
Ralf Dillert, Dereje H. Taffa, Michael Wark, Thomas Bredow, Detlef W. Bahnemann   +4 more
doaj   +1 more source

Coupling Selective Organic Oxidation With Hydrogen Evolution Over Metal Halide Perovskite Photocatalysts: Halide‐Dependent Design, Mechanisms, and Stability Challenges

EcoEnergy, EarlyView.
This Review highlights how metal halide perovskites enable coupled selective organic oxidation and hydrogen evolution under visible light. It summarizes halide‐dependent design principles, surface engineering strategies, reaction mechanisms, and stability challenges, providing guidance for developing efficient and durable photocatalytic systems ...
Jutarat Jitrada, Lizhen Liu, Patchanita Thamyongkit, Yanfa Yan, Jun Huang   +4 more
wiley   +1 more source

Heterostructured WO3–TiVO4 thin-film photocatalyst for efficient photoelectrochemical water splitting

Heliyon
Photoelectrochemical water splitting via solar irradiation has garnered significant interest due to its potential in large-scale renewable hydrogen production.
Manal Alruwaili, Anurag Roy, Mansour Alhabradi, Xiuru Yang, Hong Chang, Asif Ali Tahir   +5 more
doaj   +1 more source

Constructed Red Phosphorus/BiVO4 S‐Scheme Heterojunction for Efficient Photocatalytic Overall Water Splitting

EcoEnergy, EarlyView.
An S‐scheme red phosphorus/BiVO4 heterojunction is presented, where red phosphorus served as the water reduction site, and BiVO4 functioned as the water oxidation site. Because it has a built‐in electric field that helps charge transfer and separation, red phosphorus/BiVO4 works very well in the photocatalytic overall water splitting process.
Guanman Liu, Minyi Xie, Limei Xu, Xunfu Zhou, Yali Wang, Jin Luo, Xiaomei Ning, Zuofang Yao, Xiaosong Zhou, Laisheng Li   +9 more
wiley   +1 more source

Lattice and Surface Engineering of Transition Metal Oxide Photoanodes for Efficient Photoelectrochemical Water Splitting

EcoEnergy, EarlyView.
This review highlights phase control, facet control, and atomic vacancy engineering as key strategies to enhance charge transport, light harvesting, and surface activity in PEC photoanodes. ABSTRACT Photoelectrochemical (PEC) water splitting is a promising approach for converting solar energy into hydrogen, yet the performance of transition metal oxide
Seonmi Ko, Jehoon Lee, Tae Sung Kim, Taeuk Park, Hyo Jin Park, Junyeob Yeo   +5 more
wiley   +1 more source

Gradient p‐p Orbital Hybridization in Bismuth‐Doped Crystalline Carbon Nitride for Dual‐Functional Carbon‐to‐Carbon Valorization

EcoEnergy, EarlyView.
Schematic illustration comparing the charge transfer dynamics and catalytic reaction over the (left) pristine carbon nitride and (right) Bi‐doped carbon nitride photocatalysts. In the pristine system, random charge diffusion and rapid recombination limit catalytic efficiency. In contrast, the Bi‐doped system establishes a robust internal electric field
Joel Jie Foo, Valerine Khoo, Zi‐Jing Chiah, Sue‐Faye Ng, Xianhai Zeng, Wee‐Jun Ong   +5 more
wiley   +1 more source

Sustainable Harvesting of Solar Energy via Photoelectrochemical Water Splitting

, 2015
Photoelectrochemical water splitting represents a promising method for providing clean, renewable energy. Effective cells for photoelectrochemical water oxidation pair low band gap semiconductors with efficient oxygen evolution catalysts.
Landers, Alan
core  

Polycarbazole–NiOOH Interfacial Engineering of BiVO4 Photoanodes for Efficient and Stable Solar Water Splitting

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A π‐conjugated carbazole (p‐CBZ) layer is electro‐polymerized on BiVO4 to form a p–n heterojunction that enhances charge separation and suppresses surface recombination, while a NiOOH co‐catalyst accelerates oxygen evolution kinetics. The synergistic BVO/p‐CBZ/NiOOH photoanode delivers a high photocurrent density and long‐term stability for efficient ...
Lakshman Sundar Arumugam, Ana Gutierrez‐Blanco, Agustin O. Alvarez, Alejandro Saura Aviles, Mahesh Eledath‐Changarath, Rafael Abargues, Juan Francisco Sánchez‐Royo, Helena Rabelo, Maria Chiara Spadaro, Jordi Arbiol, Javier E. Durantini, Sixto Giménez   +11 more
wiley   +1 more source