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Official Website of Rajiv Gandhi Institute of Petroleum Technology, Jais, Amethi, India. / Facilities / Surface/Image Analyses


Surface/Image Analyses

Atomic Force Microscope (AFM)


Make and Model

Bruker, DMFASTSCAN3-SYS

Specifications
  • Fully motorized laser and detector alignment
  • Automatic setting of optimal parameters – amplitude, set point, gain and scan rate
  • Facility to image liquids samples
  • Reaching atomic resolution and defects routinely with vibration isolation and acoustic hood
  • Faster closed scanner for fast scanning scan rate of 100 ~ 125 Hz and faster Z response (12 mm/sec) in Tapping / AC Mode
  • Optical head with capability to change the laser spot size to accommodate different cantilever sizes for high speed and routine imaging
  • Closed Loop Scanner - 30 um x 30 um x 3 um with best possible Noise Floor (Resolution) and Low Drift Capability for high resolution imaging
  • Fully motorized laser and detector
  • Multiple Scanning Mode facility
Dynamic Light Scattering Particle Size Analyzer


Make and Model

Zetasizer Nano ZS
Malvern

Specifications
  • Particle size and molecular size
    • Measurement range: 0.3nm – 10.0 microns* (diameter)
    • Measurement principle: Dynamic Light Scattering
    • Minimum sample volume: 12µL
    • Accuracy: Better than +/-2% on NIST traceable latex standards
    • Precision / Repeatability: Better than +/-2% on NIST traceable latex standards
    • Sensitivity: 0.1mg/mL (Lysozyme)
  • Zeta potential (and optional Protein Mobility)
    • Measurement range: 3.8nm – 100 microns (diameter)*
    • Measurement principle: Electrophoretic Light Scattering
    • Minimum sample volume: 150µL (20µL using diffusion barrier method)
    • Accuracy: 0.12µm.cm/V.s for aqueous systems using NIST SRM1980 standard reference material
    • Sensitivity: 10mg/mL (BSA)
High-Resolution Scanning Electron Microscope (HR-FE-SEM) with EDS



Make and Model

JEOL, JSM-7900F

Specifications
  • 0.7 nm @ 15 kV & 1.0 nm @ 1kV
  • 25x to 10,00,000x
  • Limit 20 volts
  • 100 nA
  • In lens SE detector/upper detector
  • SE detector
  • BSE detector
  • Super Hybrid Lens (SHL)
  • Focus, Astigmatism correction, Brightness, Contrast
High-Resolution Transmission Electron Microscope (HR-TEM)
Make and Model

Jeol, NEOARM/JEM-ARM200F, AMI 300

Specifications
  • Resolution: STEM HAADF image 70 pm (200 kV), 100 pm (80 kV), 160 pm (30 kV)
    TEM information limit 100 pm (200 kV), 110 pm (80 kV), 250 pm (30 kV)
  • Electron gun: Cold field emission gun (Cold FEG): standard
  • Aberration corrector: STEM: NEO ASCOR HOAC※2, TEM: CETCOR with DSS※3
  • Corrector auto tuning system: NEO JEOL COSMOTM Auto tuning system Ad-hock tune (SIAM) built-in
  • Accelerating voltage:30 to 200 kV (30, 80, 200 kV: standard, 60, 120 kV: optional)
  • Magnetic field free mode: Lorentz lens settings (×50 to 80 k on screen): standard
  • Specimen movement system: X, Y and Z super-fine mechanical drive, ultra-fine piezo device drives: standard
  • Operation type: RDS※4 operation
Pulse Chemisorption/ Desorption System



Make and Model

Altamira Instruments, AMI 300

Specifications
  • Temperature Programmed Desorption (TPD)
  • Temperature Programmed Reduction(TPR)
  • Temperature Programmed Oxidation (TPO)
  • Pulse Titration using reactive gases employing automatic injection loop to deduce active metal area, dispersion and average metal particle size
  • Dynamic capabilities to produce data for the calculation of metal dispersion, active surface area, BET surface area, average crystallite size, surface acidity or basicity, and activation energy via first order kinetic models
  • Capable of studying from ambient temperature to 1100 °C
Surface Area (BET) Analyzer






Make and Model

MicrotracBEL, Max II

Specifications
  • Specific surface : 0.01 m2/g or larger with N2 and 0.0005 m2/g and above more with Kr
  • Pore size distribution: 0.35 to 500 nm (diameter)
  • Adsorptive gas : N2 with > 99.999 % purity
    • He > 99.99% purity
    • CO2 > 99.99% purity
    • H2 > 99.99% purity
    • CO > 99.99% purity
    • O2 > 99.99% purity
    • CH4 gas > 99.99% purity
    • Ammonia gas > 99.99% purity
  • Pressure sensors: All Three sensors (1000 Torr, 10 Torr and 0.1 Torr )
  • P/Po Range: 1*10-8
  • Ultimate Vacuum: 5*10-10 mbar
  • Analysis Program: Adsorption/desorption isotherms
    • PCT curve
    • Specific surface area by Langmuir method and BET method
    • Pore volume calculations by DA method
    • Meso-pore analysis by DH method, CI method, BJH method
    • Micro-pore analysis by MP method, HK method, and SF method
    • Micro-pore volume and micro-pore diameter by t-method