An improved strategy of passive micro direct methanol fuel cell: Mass transport mechanism optimization dominated by a single hydrophilic layer

Zhang, Rongji; Cao, Jiamu; Wang, Weiqi; Zhou, Jing; Chen, Junyu; Chen, Liang; Chen, Weiping; Zhang, Yufeng

doi:10.1016/j.energy.2023.127276

Cited by 2 publications

(2 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…AuPt/SnO 2 nanotubes and (NH 4 ) 2 MoS 4 were dispersed in DMF by sonication for 0.5 h and then heated at 210 °C for 18 h. After washing and drying, the products were treated at 700 °C in N 2 for 2 h, and the MoS 2 /AuPt/SnO 2 nanocomposite with high crystallinity was obtained. The use of DMF as a solvent can avoid nanotubes only as the connection line of aggregated MoS 2 particles, and these nanotubes can act as both binder and substrate so that MoS 2 nanosheets are uniformly covered along the longitudinal axis without aggregation . The preparation of the MoS 2 /SnO 2 nanocomposite was similar to that of the MoS 2 /AuPt/SnO 2 nanocomposite, but replacing AuPt/SnO 2 nanotubes with SnO 2 nanotubes.…”

Section: Methodsmentioning

confidence: 99%

“…The use of DMF as a solvent can avoid nanotubes only as the connection line of aggregated MoS 2 particles, and these nanotubes can act as both binder and substrate so that MoS 2 nanosheets are uniformly covered along the longitudinal axis without aggregation. 23 The preparation of the MoS 2 /SnO 2 nanocomposite was similar to that of the MoS 2 /AuPt/SnO 2 nanocomposite, but replacing AuPt/SnO 2 nanotubes with SnO 2 nanotubes. The obtained products were marked as MoS 2 /SnO 2 -1, MoS 2 / SnO 2 -2, and MoS 2 /SnO 2 -3 according to the Mo/Sn molar ratio of 1:1, 1:2, and 1:4, respectively.…”

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Room-Temperature NO₂ Detection by MoS₂–Nanoflake-Decorated AuPt/SnO₂ Nanotubes

Wang,

Cao,

Zhang

et al. 2023

ACS Appl. Nano Mater.

Self Cite

View full text Add to dashboard Cite

Although SnO 2 nanomaterials have been leading components of semiconductor gas sensors, their long-standing challenges of high working temperatures limit their practical application for ultralow-power-consumption room-temperature sensing. In this study, Au and Pt bimetallic nanoparticles were used to fabricate a MoS 2 /AuPt/SnO 2 nanocomposite device by interfacially engineering a MoS 2 /SnO 2 nanostructure. Owing to the unique structure and electrical properties, the as-fabricated MoS 2 /AuPt/SnO 2 device exhibits a remarkable sensing response (2.22), short response time (20 s), and excellent baseline recovery (8 s) to 10 ppm NO 2 gas at 23 ± 2 °C. Meanwhile, the MoS 2 / AuPt/SnO 2 device possesses high sensitivity, a low detection limit (20 ppb), commendable reversibility, appreciable stability, and excellent selectivity against ammonia, carbon monoxide, ethanol, isopropanol, and acetone gases. The superior sensing characteristics of the MoS 2 /AuPt/SnO 2 nanocomposite device are attributed to the modulation effect of the Schottky junction and p−n heterojunction on the potential barrier, highly efficient interfacial electron transport, and edge-enriched structure, which provide abundant active adsorption sites. This work will advance the evolution of room-temperature gas-sensitive nanomaterials and render them promising for applications in ultralow power-integrated sensors.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%