Facile preparation of BP-MoS2/GO composite films with excellent flame retardancy and ultrasensitive response for smart fire alarm

Recent Advances on Early-Stage Fire-Warning Systems: Mechanism, Performance, and Perspective

“…A smart warning film is a multifunctional composite film consisting of black phosphorene, molybdenum disulfide, and GO. By utilizing an ignitor to burn a warning sample, the electrical resistance decreases dramatically within 1 s, which can induce an alert [61]. As observed in Fig.…”

The gorgeous transformation of paper: from cellulose paper to inorganic paper to 2D paper materials with multifunctional properties

“…and water molecules under high temperatures. 245–247 Inspired by its transformable conductivity properties, GO paper has been considered a candidate material for fire-alarm applications. On the other hand, the thermal stability of GO is very limited and it has a low decomposition temperature (less than 400 °C in the air), which greatly hinders its flame resistance and application in fire early-warning sensors.…”

“…246 The fire response of both the GO paper and the GO–PTA paper doped with 25 wt% PTA was 0.5 s. However, comparing before and after doping, the alarm duration time of the GO–PTA paper was greatly improved to 258.0 s from 41.0 s for pure GO paper when 25 wt% PTA was introduced in the GO paper. Recently, Qu et al 247 synthesized a nano-filler (BP–MoS 2 ) by ball milling black phosphorene (BP) and molybdenum disulfide (MoS 2 ) and introduced it into GO for achieving a GO film with outstanding flame resistance and ultrasensitive fire response. MoS 2 and BP are both 2D nanomaterials, and their synergistic effect of fire resistance endowed GO with excellent flame retardancy and ultra-fast fire warning response (about 1 s).…”

“…Therefore, the negative effects resulting from a large number of fire-resistant additives need to be considered. 247…”

Excellent flame retardancy and air stability through surface coordination of few‐layer black phosphorus with TiL4 in epoxy resin

“…A large amount of effort has been conducted to prepare few-layer BP since the first exfoliation of the bulk BP by micro-cleavage method in 2014. 17,18 Presently, the exfoliating ways of the bulk BP can mainly be classified into mechanical exfoliation, 19,20 ultrasound-assistance liquid exfoliation in organic solvents, 11,[14][15][16][17][18][19][21][22][23][24] and electrochemical exfoliation. 25 Contrast to other traditional 2D materials, however, BP has a severe deficiency of the poor ambient stability.…”