Results 91 to 100 of about 59,397 (301)

Tuning Defects in Ni‐Doped Maghemite for Enhanced Solar Driven Oxygen Evolution: Insights From Operando X‐Ray Spectroscopies

Advanced Science, EarlyView.
ABSTRACT Maghemite (γ$\gamma$‐Fe2${\rm Fe}_2$O3${\rm O}_{3}$) is a promising non‐precious‐metal‐containing photocatalyst for water oxidation (OER). Despite being less studied than Hematite, it offers similar corrosion resistance and a favorable band structure, along with higher conductivity and the advantage of an adaptable spinel structure.
Francesco Paparoni, Hélène Magnan, Antoine Barbier, Andrea Zitolo, AndreaDi Cicco, Javad Rezvani, Emiliano Fonda   +6 more
wiley   +1 more source

FeCoNiCuPt High‐Entropy Alloy Boosts Photocatalytic Hydrogen Production on Protonated Graphitic Carbon Nitride

Advanced Science, EarlyView.
In this study, FeCoNiCuPt high‐entropy alloy particles (HEA) are loaded onto protonated g‐C3N4 nanosheets (HCN NSs) to construct HEA/HCN composites through an electrostatic self‐assembly method. Protonation treatment enriches the surface of g‐C3N4 nanosheets with abundant active sites and enhances their interfacial charge separation capability ...
Yunzhu Zang, Jiali Ren, Yanjun Xue, Jian Tian   +3 more
wiley   +1 more source

Tracing the Dynamic Chemical Transformations of Spiro‐OMeTAD in Operating Perovskite Solar Cells

Advanced Science, EarlyView.
Mapping of Spiro‐OMeTAD layer's chemistry and electronic properties in PSC: Advanced cluster ion‐beam sputtering depth profile XPS reveals that environmental stressors (light, potential, and moisture) trigger the decomposition of LiTFSI dopants in Spiro‐OMeTAD.
Chittaranjan Das, Mayank Kedia, Kenedy Tabah Tanko, Yunshan Wang, Christian Njel, Monica Lira‐Cantu, Michael Saliba   +6 more
wiley   +1 more source

Viability of low solar efficiency materials for photoelectrochemical separations via thermodynamic modeling

Nature Communications
Photoelectrochemical systems harness onsite solar energy to drive chemical processes, enabling improvements in sustainability and decarbonization. Photoelectrochemical systems have been extensively studied for reactions such as hydrogen production ...
Devashish Gokhale, Prashant K. Jain, Xiao Su   +2 more
doaj   +1 more source

Atomic Interlayer Mo–N4 Sites Enable Rapid Charge Transfer and Efficient CO2 Photoreduction

Advanced Science, EarlyView.
This work achieved efficient CO2 activation and ultrafast interlayer electron transport in a 2D COF by constructing atomic‐level Mo‐N4‐induced interlayer electron bridges (IEB), thereby kinetically and thermodynamically co‐driving the photocatalytic coupling of CO2 reduction with 4‐methoxybenzyl alcohol oxidation.
Lijuan Sun, Haiwei Su, Zhen Chen, William Orbell, Guijie Liang, Weikang Wang, Lele Wang, Juan Yang, Qinqin Liu, Junhua Li   +9 more
wiley   +1 more source

Simultaneous Wastewater‐to‐Hydrogen Upgrading via Mechanically Driven Piezocatalysis Over Ag‐ZnO Nanorods

Advanced Science, EarlyView.
A piezocatalytic strategy enables simultaneous wastewater purification and hydrogen generation by harnessing mechanical energy. Complementary piezo‐induced charges are selectively directed toward oxidation and reduction pathways, achieving efficient pollutant degradation and continuous H2 evolution.
Yiqing Wei, Jianghai Huang, Yejunchi Zhang, Yang Wang, Dongmei Li, Chaogang Ban, Peng Yu, Jiangping Ma, Zhenxiang Cheng   +8 more
wiley   +1 more source

Fused Ring Engineering Induced Topology Control in Covalent Organic Frameworks: Unlocking Promoted Photocatalytic H2O2 Production and Selective Methane Oxidation

Angewandte Chemie, EarlyView.
By modulating the topological structures of two N‐heterocycle‐based covalent organic frameworks, Phen‐TTA with a kgd‐v topology exhibits narrower optical bandgap, lower exciton binding energy, and faster charge‐carrier kinetics compared to O‐TTA with an hcb topology.
Lei Wang, Zhipeng Xie, Xinyi Zeng, Hetao Xu, Mingyue Wang, Jie Yang, Chao Lin, Wandong Xing, Zhengxiao Guo, Xiong Chen   +9 more
wiley   +2 more sources

Mg‐doped α‐Ga2O3 Nanorods for the Construction of Photoelectrochemical‐Type Self‐Powered Solar Blind UV Photodetectors and Underwater Imaging Application

Advanced Science
Underwater imaging technologies are increasingly crucial for environmental monitoring and resource exploration. However, the development of advanced photodetectors for such applications faces significant challenges, including interference from ambient ...
Xin Zhou, Lijuan Ye, Lai Yuan, Dan Zhang, Hong Zhang, Di Pang, Yan Tang, Honglin Li, Wanjun Li, Heping Zeng   +9 more
doaj   +1 more source

CO2 Hydrogenation to Formate and Formic Acid by Bimetallic Palladium-Copper Hydride Clusters. [PDF]

, 2020
Mass spectrometric analysis of the anionic products of interaction between bimetallic palladium-copper tetrahydride anions, PdCuH4-, and carbon dioxide, CO2, in a reaction cell shows an efficient generation of the PdCuCO2H4- intermediate and formate ...
Alexandrova, Anastassia N, Blankenhorn, Moritz, Bowen, Kit H, Liu, Gaoxiang, Marshall, Mary, Poths, Patricia, Zhang, Xinxing, Zhu, Zhaoguo   +7 more
core   +1 more source

In-materio neuromimetic devices: Dynamics, information processing and pattern recognition

, 2020
The story of information processing is a story of great success. Todays' microprocessors are devices of unprecedented complexity and MOSFET transistors are considered as the most widely produced artifact in the history of mankind.
Gentili, Pier Luigi, Mazur, Tomasz, Przyczyna, Dawid, Szaciłowski, Konrad, Zawal, Piotr   +4 more
core   +1 more source