نتایج جستجو برای: h-MoO3

تعداد نتایج: 531870  

Journal: :Physical chemistry chemical physics : PCCP 2013
A Chithambararaj N S Sanjini S Velmathi A Chandra Bose

A detailed study on visible light photocatalytic degradation of methylene blue (MB) has been investigated in aqueous heterogeneous media containing hexagonal phase molybdenum oxide (h-MoO3) nanocrystals (NCs) which was identified as a new material for visible light driven photocatalysis. A simple and template-free solution based chemical precipitation method was employed to synthesize h-MoO3 NC...

2011
Tao Tao Alexey M. Glushenkov Chaofeng Zhang Hongzhou Zhang Dan Zhou Zaiping Guo Hua Kun Liu Qiyuan Chen Huiping Hu Ying Chen

AMoO3–carbon nanocomposite was synthesized from amixture ofMoO3 and graphite by a controlled ball milling procedure. The as-prepared product consists of nanosized MoO3 particles (2–180 nm) homogeneously distributed in carbon matrix. The nanocomposite acts as a high capacity anode material for lithium-ion batteries and exhibits good cyclic behavior. Its initial capacity exceeds the theoretical c...

1998
Richard L. Smith Gregory S. Rohrer

Atomic force microscopy and X-ray diffraction have been used to characterize the structural evolution of the MoO3(010) surface during gas phase reactions with nitrogen-alcohol (methanol, ethanol, and 2-propanol) mixtures between 200 and 400◦C. Our results demonstrate that MoO3 intercalates H during these reactions (T≥ 300◦C) and that protonation leads to the precipitation of a well known hydrog...

Journal: :Nanoscale 2018
Sulagna Patnaik Gayatri Swain K M Parida

Herein, a novel Cu-MoO3/g-C3N4 hybrid nanocomposite was successfully synthesized by a two-step strategy of one-pot pyrolysis followed by the impregnation method. The structure, phase, morphology and electronic environment of MoO3, g-C3N4 and Cu in the composite were determined by various characterization methods. The oxygen vacancies of MoO3 were ascertained by UV-DRS, Raman, and XPS analysis. ...

Journal: :Journal of Applied Physics 2023

This paper presents the experimental evidence of reversible insulator–metal transition (IMT) in thin-film amorphous molybdenum trioxide (MoO3) induced by electric fields just a few volts. The presence oxygen vacancies MoO3 is considered to play significant role reported IMT. not only impact stoichiometry but also optical bandgap. subthreshold slope for IMT 10 nm-thick MoO3-based devices 48.3 mV...

Journal: :Nanoscale 2013
David Di Yao Matthew R Field Anthony P O'Mullane Kourosh Kalantar-Zadeh Jian Zhen Ou

Despite a favourable morphology, anodized and ordered TiO2 nanotubes are incapable of showing electrochromic properties in comparison to many other metal oxide counterparts. To tackle this issue, MoO3 of ~5 to 15 nm thickness was electrodeposited onto TiO2 nanotube arrays. A homogenous MoO3 coating was obtained and the crystal phase of the electrodeposited coating was determined to be α-MoO3. T...

Journal: :Physical chemistry chemical physics : PCCP 2015
Zhimin Liang Mingze Su Yangyang Zhou Li Gong Chuanxi Zhao Keqiu Chen Fangyan Xie Weihong Zhang Jian Chen Pengyi Liu Weiguang Xie

The interfacial reaction and energy level alignment at the Si/transition metal oxide (TMO, including MoO3-x, V2O5-x, WO3-x) heterojunction are systematically investigated. We confirm that the interfacial reaction appears during the thermal deposition of TMO, with the reaction extent increasing from MoO3-x, to V2O5-x, and to WO3-x. The reaction causes the surface oxidation of silicon for faster ...

Journal: :Chemistry 2016
Da-Ren Hang Krishna Hari Sharma Chun-Hu Chen Sk Emdadul Islam

We exploit the utilization of two-dimensional (2D) molybdenum oxide nanoflakes as a co-catalyst for ZnO nanorods (NRs) to enhance their photocatalytic performance. The 2D nanoflakes of orthorhombic α-MoO3 were synthesized through a sonication-aided exfoliation technique. The 2D MoO3 nanoflakes can be further converted to substoichiometric quasi-metallic MoO3-x by using UV irradiation. Subsequen...

Journal: :The journal of physical chemistry letters 2017
Masaaki Misawa Subodh Tiwari Sungwook Hong Aravind Krishnamoorthy Fuyuki Shimojo Rajiv K Kalia Aiichiro Nakano Priya Vashishta

Two-dimensional and layered MoS2 is a promising candidate for next-generation electric devices due to its unique electronic, optical, and chemical properties. Chemical vapor deposition (CVD) is the most effective way to synthesize MoS2 monolayer on a target substrate. During CVD synthesis, sulfidation of MoO3 surface is a critical reaction step, which converts MoO3 to MoS2. However, initial rea...

2015
Bonan Liu Liam France Chen Wu Zheng Jiang Vladimir L. Kuznetsov Hamid A. Al-Megren Mohammed Al-Kinany Saud A. Aldrees Tiancun Xiao Peter P. Edwards

The supplementary data have included a full range of TEM pictures of the post-run samples, including 400 oC calcinated MoO3/H-ZSM-5 samples (coked) and the parent H-ZSM-5 (coked), showing the distribution of Mo clusters on the zeolite crystallite external surface, and the observed coke deposition upon the spreading of the Mo species. The Figures S1-S9 are the complementary of the Fig. 8 in the ...

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