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5,261 Newest Publications about the topic doping

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Engineering defects and photocatalytic activity of TiO2 nanoparticles by thermal treatments in NH3 and subsequent surface chemical etchings

15-Aug-2017 | Xiaomei Yu; Yunfei Wang; Yu Kwon Kim, Physical Chemistry Chemical Physics, 2017

TiO2 nanoparticles with N dopants were prepared by thermal treatments in NH3 and their surface defects were controlled by post chemical etching in HF to find out the influence of the N dopants on the photoactivity. The effect of the N-doping is found to enhance the photoactivity of TiO2, but is ...

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Solvent Basicity Promotes the Hydride-mediated Electron Transfer Doping of Carbon Nanotubes

15-Aug-2017 | Yoshiyuki Nonoguchi; Shunsuke Sudo; Atsushi Tani; Tomoko Murayama; Yuriko Nishiyama; Ryoko M. Uda; TSUYOSHI KAWAI, Chemical Communication, 2017

This study investigates the hydride-mediated electron transfer doping of single-walled carbon nanotubes using absorption spectroscopy and thermoelectric measurements. Specific solvent basicity is found to be important for the efficient n-type doping of carbon nanotubes. This progress is an ...

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Synthesis of flake-like mesoporous silicate having multiple metal centers and catalytic application for conversion of D-(-)-fructose into fine chemicals

13-Aug-2017 | Author(s): Chao Fan, Benhua Huang, Cheng Pan, Jingshun Zhang, Huaning Wen, Jianye Yang, Yang Sun, Materials Chemistry and Physics, 2017

Publication date: 1 October 2017 Source:Materials Chemistry and Physics, Volume 200 Author(s): Chao Fan, Benhua Huang, Cheng Pan, Jingshun Zhang, Huaning Wen, Jianye Yang, Yang Sun A series of silicates have been prepared by using mixed templates including Pluronic P123, ...

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Recent progress in electrospinning TiO2 nanostructured photo‐anode of dye‐sensitized solar cells

12-Aug-2017 | Tingting Wan, Seeram Ramakrishna, Yong Liu, Journal of Applied Polymer Science, 2017

ABSTRACT The key to improving the performance of dye‐sensitized solar cells is the photo‐anode that has much dye adsorption and short optoelectronic transmission path. Electrospun TiO2 films in photo‐anode have high specific surface area and meet the demand exactly. The article summarizes ...

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Self‐Co‐Catalyzed Fluorine‐Doped Hematite Nanocrystal for Efficient Water Oxidation

12-Aug-2017 | Yi Xie, Junfeng Xie, Weiwei Liu, Jianping Xin, Fengcai Lei, Li Gao, Haichao Qu, Xiaodong Zhang, ChemSusChem, 2017

Herein, enhanced light absorption and oxygen‐evolving activity were simultaneously achieved by doping fluorine anions into hematite nanocrystals. With the merits of anion doping, the band structure of hematite can be effectively regulated, leading to the generation of defect level between the ...

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Field‐Induced n‐Doping of Black Phosphorus for CMOS Compatible 2D Logic Electronics with High Electron Mobility

11-Aug-2017 | Yijun Xu, Jian Yuan, Kai Zhang, Yuan Hou, Qiu Sun, Yingming Yao, Shaojuan Li, Qiaoliang Bao, Han Zhang, Yuegang Zhang, Advanced Functional Materials, 2017

Black phosphorus (BP) has been considered as a promising two‐dimensional (2D) semiconductor beyond graphene owning to its tunable direct bandgap and high carrier mobility. However, the hole‐transport‐dominated characteristic limits the application of BP in versatile electronics. Here, we report ...

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Enhancing Thermoelectric Performance of TiNiSn Half-Heusler Compounds via Modulation Doping

11-Aug-2017 | Tanya Berry; Chenguang Fu; Gudrun Auffermann; Gerhard H. Fecher; Walter Schnelle; Federico Serrano-Sanchez; Yuan Yue ..., Chemistry of Materials, 2017

MNiSn (M = Ti, Zr, and Hf) half-Heusler (HH) compounds are widely studied n-type thermoelectric (TE) materials for power generation. Most studies focus on Zr- and Hf-based compounds due to their high thermoelectric performance. However, these kinds of compositions are not cost-effective. Herein, ...

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Crystal Growth and Characterization of HgBa2Ca2Cu3O8+δ Superconductors with the Highest Critical Temperature at Ambient Pressure

10-Aug-2017 | Bastien Loret; Anne Forget; Jean-Baptiste Moussy; Sylvie Poissonnet; Patrick Bonnaillie; Gaston Collin; Pierre Thuér ..., Inorganic Chemistry, 2017

We report an original procedure for the elaboration of very high-quality single crystals of superconducting HgBa2Ca2Cu3O8+δ mercury cuprates. These single crystals are unique, with very high-quality surface paving the way for spectroscopic, transport, and thermodynamic probes in order to ...

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Transition-metals doping induced the transition of electronic and magnetic properties in armchair MoS2 nanoribbon

09-Aug-2017 | Jing Pan; Rui Wang; Xiaoyu Zhou; Jiansheng Zhong; Xiaoyong Xu; Jingguo Hu, Physical Chemistry Chemical Physics, 2017

The electronic structure, magnetic properties and stability of transition-metals(TM) doped armchair MoS2 nanoribbons (AMoS2NRs) with full hydrogen passivation have been investigated by using the density functional theory. The hydrogen passivated AMoS2NRs are nonmagnetic semiconductor, but TM ...

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Metal-doped ceria nanoparticles: stability and redox processes

09-Aug-2017 | Alberto Figueroba; Albert Bruix; Gábor Kovács; Konstantin M. Neyman, Physical Chemistry Chemical Physics, 2017

Doping oxide materials by inserting atoms of a different element in their lattices is a common procedure for modifying properties of the host oxide. Using catalytically active, yet expensive noble metals as dopants allows synthesizing materials with atomically dispersed metal atoms, which can ...

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