DataVXACS Applied Nano MaterialsPaper
journal article·2025-06-13

Enhanced Room-Temperature NH3-Sensing Performance of Ti3C2Tx MXene Decorated with CeO2 Nanoparticles

Lizhai Zhang, Jiayuan Xu, Dingyuan Wang, Xinyu Lei, Henghui Sun, Yuhong Huang, Fei Ma, Taotao Ai, Paul K. Chu

ACS Applied Nano Materials· Volume 8· Issue 23
Publisher page
Source abstract

Abstract

2D MXenes have garnered enormous interest in the field of gas sensing. Unfortunately, the low stability, long recovery time, poor selectivity, and vulnerability to oxidation have hampered further development. Herein, Ti 3 C 2 T x MXene is incorporated with CeO 2 nanoparticles to improve the detection of NH 3 . Compared with Ti 3 C 2 T x and CeO 2, the response of composite to 10 ppm of NH 3 is enhanced by 180% and 714% at room temperature, respectively, in addition to the excellent selectivity, fast response, and recovery rate. Based on the first-principles calculation, the CeO 2 nanoparticles form a multifunctional passivation layer to shield the MXene from oxidative degradation and also provide ample active sites to adsorb NH 3 gas to enhance the sensing ability. The results reveal an effective means of designing and developing high-performance room-temperature ammonia sensors.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsComposites

OpenAlex topics: MXene and MAX Phase Materials · Advanced Memory and Neural Computing · Gas Sensing Nanomaterials and Sensors

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Materials Science and Engineering

Shaanxi University of Technology

State Key Laboratory for Mechanical Behavior of Materials

Xi’an Jiaotong University

Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, 999077 Hong Kong, China

Natural Active Industrialization Engineering Technology Research Centre of Shaanxi Province

College of Physics and Information Technology

Shaanxi Normal University

Funding

Scientific Research Plan Projects of Shaanxi Education Department · Natural Science Foundation of Shaanxi Province · City University of Hong Kong Donation Research Grants · Shaanxi University of Technology · Science and technology program for overseas students of Shaanxi province

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