PMID- 38334494
OWN - NLM
STAT- MEDLINE
DCOM- 20240226
LR  - 20240226
IS  - 2379-3694 (Electronic)
IS  - 2379-3694 (Linking)
VI  - 9
IP  - 2
DP  - 2024 Feb 23
TI  - Customizing Wettability of Defect-Rich CeO(2)/TiO(2) Nanotube Arrays for 
      Humidity-Resistant, Ultrafast, and Sensitive Ammonia Response.
PG  - 1014-1022
LID - 10.1021/acssensors.3c02684 [doi]
AB  - In all their applications, gas sensors should satisfy several requirements, 
      including low cost, reduced energy consumption, fast response/recovery, high 
      sensitivity, and reliability in a broad humidity range. Unfortunately, the fast 
      response/recovery and sensing reliability under high humidity conditions are 
      often still missing, especially those working at room temperature. In this study, 
      a humidity-resistant gas sensor with an ultrafast response/recovery rate was 
      designed by integrating a defect-rich semiconducting sensing interface and a 
      self-assembled monolayer (SAM) with controllable wettability. As a 
      proof-of-concept application, ammonia (NH(3)), one of the atmospheric and indoor 
      pollutants, was selected as the target gas. The decoration of interconnected 
      defective CeO(2) nanowires on spaced TiO(2) nanotube arrays (NTAs) provided 
      superior NH(3) sensing performances. Moreover, we showed that manipulating the 
      functional end group of SAMs is an efficient and simple method to adjust the 
      wettability, by which 86% sensitivity retention with an ultrafast response 
      (within 5 s) and a low limit of detection (45 ppb) were achieved even at 75% 
      relative humidity and room temperature. This work provides a new route toward the 
      comprehensive design and application of metal oxide semiconductors for trace gas 
      monitoring under harsh conditions, such as those of agricultural, environmental, 
      and industrial fields.
FAU - He, Zhen-Kun
AU  - He ZK
AUID- ORCID: 0000-0002-5988-3026
AD  - College of Science, Northeastern University, Shenyang 110819, China.
FAU - Li, Keke
AU  - Li K
AD  - College of Science, Northeastern University, Shenyang 110819, China.
FAU - Kou, Rongyang
AU  - Kou R
AD  - College of Science, Northeastern University, Shenyang 110819, China.
FAU - Zhang, Wenwen
AU  - Zhang W
AD  - College of Science, Northeastern University, Shenyang 110819, China.
FAU - Zhao, Junjian
AU  - Zhao J
AD  - College of Science, Northeastern University, Shenyang 110819, China.
FAU - Gao, Zhida
AU  - Gao Z
AD  - College of Science, Northeastern University, Shenyang 110819, China.
FAU - Song, Yan-Yan
AU  - Song YY
AUID- ORCID: 0000-0001-5150-4784
AD  - College of Science, Northeastern University, Shenyang 110819, China.
LA  - eng
PT  - Journal Article
DEP - 20240209
PL  - United States
TA  - ACS Sens
JT  - ACS sensors
JID - 101669031
RN  - 7664-41-7 (Ammonia)
SB  - IM
MH  - *Ammonia
MH  - Humidity
MH  - Reproducibility of Results
MH  - Wettability
MH  - *Nanotubes
OTO - NOTNLM
OT  - CeO2 nanowire
OT  - TiO2 nanotube arrays
OT  - ammonia
OT  - humid resistance
OT  - wettability
EDAT- 2024/02/09 12:44
MHDA- 2024/02/26 06:45
CRDT- 2024/02/09 10:02
PHST- 2024/02/26 06:45 [medline]
PHST- 2024/02/09 12:44 [pubmed]
PHST- 2024/02/09 10:02 [entrez]
AID - 10.1021/acssensors.3c02684 [doi]
PST - ppublish
SO  - ACS Sens. 2024 Feb 23;9(2):1014-1022. doi: 10.1021/acssensors.3c02684. Epub 2024 
      Feb 9.