Publisher's Note: “Discharge dynamics from an x-ray generating tribosource” [Appl. Phys. Lett. 122, 061602 (2023)]

Flexible, humidity- and contamination-resistant superhydrophobic MXene-based electrospun triboelectric nanogenerators for distributed energy harvesting applications

“…Besides, twodimensional (2D) Ti 3 C 2 T x MXenes with prominent properties such as high electronegativity and surface-charge density, metallic electrical conductivity, tunable surface chemistry, and a large specific surface area have been widely studied with promising results of greater charge-trapping ability, swift transfer of induced charges, and a large frictional contact area between triboelectric layers. 2,17,18 According to previous investigations, MXene-based TENG performance has been significantly improved based on the above-mentioned strategies. 19,20 In particular, with the morphological modification of MXenes, one-dimensional MXene/polymer composite nanofibers have attracted tremendous attention for the reason that electrospun nanofibers possess a porous, rough structure and a high specific surface area, promoting the frictional contact area and charge accumulation process.…”

“…35 Additionally, MoS 2 confers piezoelectricityenhanced triboelectric performance by inducing piezoelectric charges on the surface during contact-electrification mode on Paper Nanoscale applying external pressure. 17,36,37 CA, as one of the natural and biodegradable polymers, provides a preferential option over other polymers for its excellent and green triboelectric properties. The hydrophilic-to-hydrophobic transition properties of CA nanofibers have been achieved using the electrospinning technique.…”

Advances in MXene surface functionalization modification strategies for CO2 reduction

“…16 To date, more than 100 MXenes have been experimentally and theoretically predicted, of which up to forty have been prepared (Ti 3 C 2 , Ti 2 C, Mo 2 C, V 2 C, etc.). 17,18 Among them, Ti 3 C 2 T x , the most common MXene material, is more conducive to proton and electron transport in the electrocatalytic CO 2 reduction process because of its excellent electrical conductivity, 19 low energy barrier for electron transport, 20 abundant ionic diffusion pathways, 21 and abundant active sites, 22 which provide necessary prerequisites for CO 2 activation and adsorption of key intermediates. Meanwhile, due to its multilayered lamellar structure and abundant surface end groups (-O, -OH, and -F), it not only increases the possibility of adsorption of CO 2 but also interacts with CO 2 to enhance C-H, C-O, and C-C coupling, which further facilitates the catalytic reaction.…”

Highly sensitive self-powered ammonia gas detection enabled by a rationally designed PANI/commercial cellulosic paper based triboelectric nanogenerator

“…10,11 Advanced triboelectric nanogenerator (TENG) technology invented by Wang's group in 2012 provides a unique approach to develop self-powered sensing systems without the need for external power sources. 12 Through the coupling of tribo-electrication and electrostatic induction effects, [13][14][15] TENGs can convert external mechanical stimuli into electrical energy and were initially acting as a power source to drive traditional NH 3 sensors (independent mode). [16][17][18][19][20] For example, Tai et al developed a multi-walled carbon nanotube (MWCNT)/PANI based ultrasensitive composite structure as the sensing unit, and the record high sensitivity (22.81% ppm −1 and 2.42% ppm −1 in the ranges of 0.2-1 ppm and 20-100 ppm, respectively) so far in this mode was realized via the impedance matching effect when it was connected with a PTFE-based TENG.…”