As a new energy conversion technology, triboelectric nanogenerator (TENG) can use the coupling of triboelectrification and electrostatic induction effect to convert tiny mechanical into electrical energy, powering small electronic devices. In this paper, vibration sensing (V-TENG) based on foam nickel-PDMS composite film was prepared, which low frequency small-amplitude open circuit voltage V-T...

foam injection is widely applied in amounts of fields to drilling, production, and formation protection. sometimes, the application result is disappointing, which is caused by the failure of bubble generation in foam flooding. therefore, it is necessary to seek ways for improving the performance of foam injection. an increased disturbance to the stratum, like the vibration caused by a seismic o...

Reasonable design of a kind non-noble metal catalyst with high catalytic performance, good stability and low cost is great significance to realize the overall water splitting. Herein, bottom-up method proposed synthesize NiFe layered double hydroxides (NiFe LDHs) coated sulfide/phosphide heterostructure on nickel foam (Ni3S2-NixPy/NF@NiFe LDH) through hydrothermal combined electrodeposition. Lo...

The self-decomposition reaction of the nickel ammonia complex was used for hydroxide formation on foam with further modification in several ways. addition polyvinyl pyrrolidone (PVP) and electrochemical or chemical activation cobalt to modify method. In all cases, structures Ni(OH)2 nanoflakes were formed. It found that flower-like particles Co(OH)2 precipitated during among nanoflakes. shown p...

in many processes polymeric foams can be produced by using chemical or physical blowing agents. in this work for polyethylene foam production, the chemical blowing agents and compression moulding process were employed. at first, by using dsc diagram of two polyethylene grades, a suitable polyethylene grade was selected for foam production and then we discuss about blowing agent critical percent...

The present work was aimed to examine the effects of incorporation of each of two different types of nanoclay, i.e. Cloisite Na+ and Cloisite 30B, into PVA foam on cellular morphology and water absorption capacity. Foam samples containing 0.0-10.0 wt% of each of the two types of nanoclay alone were prepared using mechanical foaming. Accordingly, PVA/organoclay/water suspensions were prepare...