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SEM High-Pressure Gas Heating Sample Holder

Operando heating, biasing under environmental conditions

Technical Specs
1390 Series SEM
Pressure Range at Sample
1 to 20 bar
Holder Gas Inlets/Outlets
1 inlet and 1 outlet on the holder
Gas Controller Configuration
1 experimental gas and 1 inert purge gas
Purge Capability
Yes
Heating Temperature
Up to 900 °C
Biasing Contacts
4 contacts
EDS Compatible
Yes
Instrument Type
SEM

Available For:

Go beyond standard gas holder pressures investigating catalyst performance, gas–solid reactions, and pressure-dependent phase transformations with gas pressures up to 20 bar and closed-loop MEMS heating up to 900 °C

Key Features and Capabilities

60+ In-Stock Gas-Cell SEM Chip Configurations

Keep experiments moving with in-stock gas-cell SEM chips designed for gas flow, heating, sample biasing, and multimodal microscopy workflows

Multimodal Imaging

Perform correlative high-pressure gas-phase microscopy across TEM, SEM, and synchrotron X-ray platforms

SEM Safety & Seal Verification

Protect your SEM during high-pressure gas-cell experiments and streamline setup with rapid high-vacuum seal checking and optical inspection

Optimized for EDS

Perform correlative spectroscopy and microscopy for detailed in-situ elemental analysis

Reproducible Screw-Free High-Pressure Gas-Cell Assembly

Achieve reproducible high-pressure gas-cell assembly with self-aligning windows and a screw-free sealing design

Integrated Gas Heating

Perform temperature-controlled high-pressure gas-phase SEM with homogeneous MEMS heating up to 900 °C, 4-point on-chip temperature sensing, and near-drift-free imaging

High-Pressure Gas-Cell Architecture

Enable reliable in-situ SEM experiments at gas pressures up to 20 bar using a purpose-built high-pressure environmental cell

How it works

The SEM High-Pressure Gas Heating Sample Holder integrates a high-pressure-rated environmental cell, high-pressure gas delivery hardware, multifunctional high-pressure MEMS chips, electrical biasing, and closed-loop MEMS heating up to 900 °C into a unified platform for high-pressure in-situ SEM experiments. Samples are mounted onto Hummingbird Scientific MEMS chips optimized for pressures up to 20 bar before the environmental cell is assembled using a specialized high-pressure sealing mechanism. High-pressure-resistant, low-bowing silicon nitride (SiN) membranes, combined with optimized spacer geometries, maintain stable electron-transparent windows while withstanding gas pressures up to 20 bar.

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The high-pressure gas delivery system provides manually-controlled gas flow through the sealed environmental cell, while the low-thermal-mass MEMS microheater enables rapid, closed-loop heating with integrated four-point on-chip temperature sensing. Compatible MEMS chips support a wide range of high-pressure in-situ gas-phase experiments, enabling direct observation of pressure- and temperature-dependent surface reactions, catalyst restructuring, oxidation, reduction, sintering, phase transformations, and material degradation under industry-relevant gas environments.