Results 51 to 60 of about 9,090 (227)

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Influence of the forming process of corrugated stainless steels on their corrosion behaviour in simulated pore solutions [PDF]

, 2012
Stainless steels are formed by either hot working (HW) or cold working (CW) when used as reinforcement for concrete structures. The influence of the forming process on the corrosion behaviour is analyzed in depth in the present work. CW and HW corrugated
Bautista Arija, María Asunción, Paredes, E. C., Velasco López, Francisco Javier, Álvarez, Sandra M.   +3 more
core   +2 more sources

Facet‐Engineered S‐Scheme Heterostructure With Enhanced Active Sites for Efficient Photocatalytic Degradation of Organic Contaminants

Advanced Functional Materials, EarlyView.
The facet‐engineered ZnO/Zn3In2S6 heterostructure, dominated by {001} plane coupling, exposes abundant unsaturated Zn sites with elongated Zn─O bonds, directing photoexcited charge carriers along an S‐scheme pathway and suppressing recombination. Enhanced interfacial Zn adsorption toward bisphenol A and methylene blue further synergistically promotes ...
Yang Yang, Zisheng Du, Hongyuan Yang, Debabrata Bagchi, Ruotao Yang, Prashanth W. Menezes, Sugang Meng   +6 more
wiley   +1 more source

Laser Marked and Textured Biomaterial Evaluated by Mott-Schottky Technique

International Journal of Electrochemical Science, 2017
The effect of an optical fiber laser marking and texturing techniques on the surface of the ISO 5832-1 stainless steel via the Mott-Schottky approach was evaluated in this work.
Eurico Felix Pieretti, Maurício David Martins das Neves   +1 more
doaj   +1 more source

Water oxidation at hematite photoelectrodes: the role of surface states [PDF]

, 2012
Hematite (α-Fe2O3) constitutes one of the most promising semiconductor materials for the conversion of sunlight into chemical fuels by water splitting.
Allongue P., Anderman M., Barroso M., Benjamin Klahr, Bisquert J., Bisquert J., Bisquert J., Bisquert J., Bisquert J., Bolts J., Butler M. A., Conway B. E., Cook T. R., Fabregat-Santiago F., Finklea H. O., Francisco Fabregat-Santiago, Frese K. W., Gardner R. F. G., Gardner R. F. G., George S. M., Glasscock J. A., Glasscock J. A., Gärtner W., Hamann T. W., Hamann T. W., Hamann T. W., Hens Z., Hoffmann P. M., John H. K., Juan Bisquert, Kay A., Kelly J. J., Klahr B. M., Klahr B. M., Launay J. C., Le Formal F., Leng W. H., Libera J. A., Lin Y. J., Lincot D., Martinson A. B. F., Montoya J. F., Mora-Sero I., Morrison S. R., Murphy A. B., Pendlebury S. R., Ponomarev E. A., Reichman J., Salvador P., Salvador P., Scurtu R., Simmons J. G., Sivula K., Sixto Gimenez, Tang J. W., Thomas Hamann, Vanmaekelbergh D., Vanmaekelbergh D., Vanmaekelbergh D., Walter M. G., Wijayantha K. G. U.   +60 more
core   +1 more source

Atomic‐Level Ionic Displacement Polarization Enhanced Piezocatalytic Hydrogen Evolution in Covalent Organic Frameworks

Advanced Functional Materials, EarlyView.
Two isomorphic COFs were synthesized and compared, including an amphoteric COF (SQ‐TAPT) and a neutral COF (PDA‐TAPT). The ionic bonds in SQ‐TAPT introduce more Born effective charges, thereby enhancing its ionic displacement polarization. Experimental and theoretical calculations demonstrated that SQ‐TAPT exhibited higher polarity and stronger ...
Ge Yan, Xiaodong Sun, Kailai Zhang, Shuai Zhang, Haijun Hu, Hui Li, Zhenglong Li, Hongwei Huang, Liqun Ye, Jiyang Li, Yunling Liu, Hongge Pan, Tianyi Ma   +12 more
wiley   +1 more source

Influence of Schottky contact on the C-V and J-V characteristics of HTM-free perovskite solar cells

EPJ Photovoltaics, 2017
The influence of the Schottky contact is studied for hole transport material (HTM) free CH3NH3PbI3 perovskite solar cells (PSCs), by using drift-diffusion and small signal models.
Huang Y., Aharon S., Rolland A., Pedesseau L., Durand O., Etgar L., Even J.   +6 more
doaj   +1 more source

Oxygen doping-induced photogeneration loss in P3HT:PCBM solar cells [PDF]

, 2012
This work investigates the loss in performance induced by molecular oxygen in bulk heterojunction solar cells. We observe that upon exposure to molecular oxygen both formation of P3HT+:O2− complex and metal oxidation at the interface between the active ...
Boix, Pablo P, Garcia-Belmonte, Germà, Guerrero, Antonio, Marchesi, Luis F., Pereira, Ernesto C., Ripollés Sanchis, Teresa   +5 more
core   +2 more sources

In‐Situ Solution Complexation for n‐Type Surface‐Energetics Reconstruction in 2.0 eV Ultra‐Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
A reactive in situ solution complexation strategy reconstructs the surface of 2.0 eV ultra‐wide‐bandgap perovskites via proton transfer. This chemical modulation eliminates metallic defects and induces a degenerate‐like n‐type surface, establishing an Ohmic tunneling contact.
Saemon Yoon, Han‐Gyun Lim, Jinyoung Kim, Gyu Min Kim, Seojun Lee, Jun Ryu, SungWon Cho, Jincheol Kim, Hyosung Choi, Jung Sang Cho, Jongsung Park, Dong‐Won Kang   +11 more
wiley   +1 more source

Solution-processed amorphous niobium oxide as a novel electron collection layer for inverted polymer solar cells [PDF]

, 2013
Amorphous niobium oxide (NbOx) as an electron collection layer in inverted polymer solar cells was prepared by a solution process. The power conversion efficiency of inverted polymer solar cells based on a blend of poly(3-hexylthiophene) and [6,6]-phenyl
Hamada Keisuke, Murakami Naoya, Ohno Teruhisa, Tsubota Toshiki   +3 more
core   +2 more sources