Complex hierarchical structures have received tremendous attention due to their superior properties over their constitute components. In this study, hierarchical graphene-encapsulated hollow SnO2@SnS2 nanostructures are successfully prepared by in situ sulfuration on the backbones of hollow SnO2 spheres via a simple hydrothermal method followed by a solvothermal surface modification. The as-pre...

Today, monitoring and classification of hydrogen gas by metal oxide-based sensors are widely studying to improve their selectivity stability. In present work, sensing properties magnetron sputtered deposited pure SnO2 thin films have been studied. The film was on glass substrate as-deposited annealed at 450 °C for 6 hrs. has crystalline tetragonal structure, granular surface morphology non-stoi...

Highly porous surface fluorinated SnO2 hollow nanospheres (SnO2(F) HNS) were produced in high yield by a hydrothermal treatment of stannous fluoride in the presence of hydrogen peroxide. Two important processes in terms of oriented self-assembly and in situ self-transformation were highlighted for the formation of as-prepared SnO2(F) HNS, which were largely relying on the directing effects of s...

Single crystalline tin oxide (SnO2) nanowires have been synthesized by carbothermal reduction of SnO2 nanopowder followed by thermal evaporation of the reduced precursor and growth via the vapor-liquid-solid (VLS) growth mechanism. The nanowires are deposited on single crystalline TiO2 substrates of orientations of (100) and (110) that are coated with a thin film and colloids of gold (Au) catal...

Polarization-dependent X-ray absorption measurements reveal the existence of structural anisotropy in amorphous (a-) SnO2 film. The anisotropy is readily seen for the second neighbor interaction whose magnitude differs along three measured directions. The differences can be well accounted for by 10%–20% variation in the Debye-Waller factor. Instead of a single Gaussian distribution found in cry...

This paper presents a gas identification circuit for tin oxide (SnO2) gas sensors. The proposed circuit uses 2 gas sensors with different characteristics to achieve gas identification. A spike train is generated during operation, with the frequency of spike occurrence being gas dependent but concentration invariant. As a result, the spike firing frequency can be used to achieve gas identificati...

Karakterisasi terhadap sensor gas LPG dari bahan SnO2 didoping dengan Al2O3 telah dilakukan. Sampel dibuat persentase doping 0%, 2%, 4%, 6%, 8% dan 10% mol dasar SnO2. Sensor diuji pada temperatur ruang untuk mendapatkan karakteristik I-V, nilai sensitivitas, selektivitas, konduktivitas, waktu respon karakterisasi XRD. Berdasarkan pengukuran sensitivitas tertinggi sampel 92% + 8 % yaitu 4,33 te...