نتایج جستجو برای: aqua mediated sno2 nanoparticles

تعداد نتایج: 517410  

2013
Soo Chool Lee Seong Yeol Kim Byung Wook Hwang Suk Yong Jung Dhanusuraman Ragupathy In Sung Son Duk Dong Lee Jae Chang Kim

The effects of the SnO2 pore size and metal oxide promoters on the sensing properties of SnO2-based thick film gas sensors were investigated to improve the detection of very low H2S concentrations (<1 ppm). SnO2 sensors and SnO2-based thick-film gas sensors promoted with NiO, ZnO, MoO3, CuO or Fe2O3 were prepared, and their sensing properties were examined in a flow system. The SnO2 materials w...

Journal: :Green Energy & Environment 2022

For high-efficiency NH3 synthesis via ambient-condition electrohydrogenation of inert N2, it is pivotal to ingeniously design an active electrocatalyst with multiple features abundant surfacial deficiency, good conductivity and large surface area. Here, oxygen-deficient SnO2 nanoparticles encapsulated by ultrathin carbon layer (d-SnO2@C) are developed hydrothermal deposition coupled annealing p...

2015
Yuemei Wu Heng Zhang Yingkai Liu Weiwu Chen Jiang Ma Shuanghui Li Zhaojun Qin

Single crystal SnO2 nanobelts (SnO2 NBs) and La-SnO2 nanobelts (La-SnO2 NBs) were synthesized by thermal evaporation. Both a single SnO2 NB sensor and a single La-SnO2 NB sensor were developed and their sensing properties were investigated. It is found that the single La-SnO2 NB sensor had a high sensitivity of 8.76 to ethanediol at a concentration of 100 ppm at 230 °C, which is the highest sen...

Journal: :Physical chemistry chemical physics : PCCP 2013
Gabor Samjeské Shin-ichi Nagamatsu Shinobu Takao Kensaku Nagasawa Yoshiaki Imaizumi Oki Sekizawa Takashi Yamamoto Yohei Uemura Tomoya Uruga Yasuhiro Iwasawa

We have prepared and characterized a SnO2-decorated Pt-Sn(oxidized)/C cathode catalyst in a polymer electrolyte fuel cell (PEFC). Oxygen reduction reaction (ORR) performance of Pt/C (TEC10E50E) remained almost unchanged or even tended to reduce in repeated I-V load cycles, whereas the I-V load performance of the Pt-Sn(oxidized)/C prepared by controlled oxidation of a Pt-Sn alloy/C sample with t...

2014
Jiang Ma Yingkai Liu Heng Zhang Peng Ai Nailiang Gong Ying Zhang

Monocrystal SnO2 and Pd-SnO2 nanoribbons have been successfully synthesized by thermal evaporation, and novel ethanol sensors based on a single Pd-SnO2 nanoribbon and a single SnO2 nanoribbon were fabricated. The sensing properties of SnO2 nanoribbon (SnO2 NB) and Pd-doped SnO2 nanoribbon (Pd-SnO2 NB) sensors were investigated. The results indicated that the SnO2 NB showed a high sensitivity to...

Journal: :Science China. Materials 2021

Two-dimensional porous nanosheet heterostructure materials, which combine the advantages of both architecture and components, are expected to feature a significant photocatalytic performance toward CO2 conversion into useful fuels. Herein, we provide facile strategy for fabricating sulfur-doped C3N4 nanosheets with embedded SnO2-SnS2 nanojunctions (S-C3N4/SnO2-SnS2) via liquid impregnation-pyro...

Journal: :Chemosensors 2022

We have designed a new ternary structure to enhance the sensing properties of WS2 nanosheet (NS)-based gas sensors at room temperature (RT) in self-heating mode. SnO2 nanowires (NWs, 10–30 wt%) were added NSs and then Au nanoparticles (NPs) deposited on surface resulting composites by UV irradiation. The Au-decorated 10 wt% SnO2–WS2 composition showed highest properties. presence NWs effectivel...

Journal: :Nanoscale 2015
Xiuqiang Xie Dawei Su Jinqiang Zhang Shuangqiang Chen Anjon Kumar Mondal Guoxiu Wang

SnO2/nitrogen-doped graphene nanohybrids have been synthesized by an in situ hydrothermal method, during which the formation of SnO2 nanocrystals and nitrogen doping of graphene occur simultaneously. The as-prepared SnO2/nitrogen-doped graphene nanohybrids exhibit enhanced electrochemical performance for sodium-ion batteries compared to SnO2/graphene nanocomposites. A systematic comparison betw...

Journal: :Chemical Papers 2022

In this study, simple morphological and structural evolutions of two-dimensional hexagonal nanoplatelets were investigated. XRD analysis SnO2 SnO2:Y has revealed a tetragonal structure photoluminescence spectra exhibited visible emission broadband peak around 464 nm 528 nm. The (7 wt.%) confirm the increased charge separation, which inhibits electron–hole recombination. Raman validated presence...

2016
Nafarizal Nayan Huey Sia Lim Mohd Khairul Ahmad Samsul Haimi Dahlan Mohd Zainizan Sahdan Mohd Kadim Suaidi Badrul Hisham Ahmad Fauzi Mohd Johar Ghaffer Kiani

A major disadvantage of energy saving glass using tin oxide (SnO2) thin film is that SnO2 attenuates the mobile signal from passing through it. In order to improve such signal transmission, a frequency selective surface (FSS) structures are designed on SnO2 thin film. In this paper, SnO2 thin film with FSS structure was fabricated using combination of printed circuit board technology and reacti...

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