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Template-Assisted Synthesis of Hierarchical Gas Sensing Materials: From Structural Design to Performance

Zhonghui Chen1, Ziying Yi1, Zirui Min2

  • 1Center For Alloy Innovation and Design (CAID), State Key Laboratory For Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, P. R. China.

Chemistry (Weinheim an Der Bergstrasse, Germany)
|May 6, 2026
PubMed
Summary

Template-assisted synthesis creates hierarchical gas-sensing materials for improved environmental and medical sensors. This review details templating methods, balancing structure, complexity, and impact for next-generation gas detection.

Keywords:
bio‐templatinggas sensinghard‐templatinghierarchical nanostructuressoft‐templatingtemplate‐assisted synthesis

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Area of Science:

  • Materials Science
  • Chemical Engineering
  • Sensor Technology

Background:

  • Gas-sensing technology is crucial for environmental monitoring, industrial safety, food quality, and medical diagnostics.
  • Template-assisted synthesis enables precise control over hierarchical structures in gas-sensing materials, enhancing performance.
  • Innovations in hierarchical metal oxide semiconductors (MOS) and metal-organic frameworks (MOFs) have improved gas sensor stability, speed, sensitivity, and selectivity.

Purpose of the Study:

  • To systematically review templating approaches for hierarchical gas-sensing materials.
  • To analyze the link between templating methods, structural control, and gas sensing performance.
  • To explore the balance between structural precision, synthetic complexity, and environmental impact of different templating strategies.

Main Methods:

  • Systematic literature review of template-assisted synthesis for hierarchical gas-sensing materials.
  • Analysis of design principles and control mechanisms of three primary templating approaches.
  • Examination of functional applications and performance enhancements in MOS and MOFs.

Main Results:

  • Templating strategies offer multiscale control over morphology, porosity, and electronic properties of gas-sensing materials.
  • Hierarchical structures significantly enhance sensitivity, selectivity, stability, and response speed of gas sensors.
  • Different templating methods present trade-offs between structural precision, synthetic complexity, and environmental considerations.

Conclusions:

  • Tailored templating is key to developing next-generation gas sensors with superior performance.
  • Further research is needed to optimize templating strategies for practical applications and address challenges.
  • Future development should focus on balancing synthetic efficiency, environmental sustainability, and high sensing capabilities.