High-performance Room Temperature N2H4 Sensor Based on Tree Pathogen Derived Self-Doped N Porous Carbon

Weijin Wang,Weiyu Zhang, Qihua Sun, Ning Tian,Jun Sun,Zhaofeng Wu

MATERIALS TODAY CHEMISTRY（2025）

Xinjiang Univ | XinJiang Univ

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Abstract

The development of a green and non-polluting gas-sensitive material for N2H4 detection at room temperature (RT) remains a challenge. Guided by the concept of green and sustainable development, we have prepared a novel porous carbon material (LSC) for high-performance N2H4 detection at RT. This was achieved through a green and environmentally friendly one-step carbonization method, using Laetiporus sulphureus (LS), a tree pathogen abundant in amino acids and proteins, as a precursor for nitrogen self-doping. Through optimization of the carbonization temperature, the LSC-600 sensor achieves highly sensitive and selective detection of N2H4 at RT, with a response of 32.11k%-500 ppm N2H4 and exhibits a faster response (similar to 20.1 s) and recovery (similar to 1.5 s). The LSC-600 sensor shows good long-term stability, with a response to N2H4 varying less than 8.4 % after 30 days. Moreover, its gas-sensitive mechanism is discussed in detail. This research not only presents a green and sustainable approach for the valuable utilization of biomass waste but also furnishes a valuable reference for the development of high-performance sensors. In addition, it expands the scope of bio-manufacturing and opens up new avenues for research and development in materials science.

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Key words

Sustainable utilization,Self-doped N,Room temperature,Gas-sensitive,Porous carbon

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