Pulsed discharge plasma and its application is one of the promising directions in civilian areasof pulsed power technology. In order to promote research development ofthe theory technology for plasma, thispaper, recent progress on mechanism nanosecond-pulse gas andthe characteristics applications typical at Instituteof Electrical Engineering, Chinese Academy Sciences reviewed. Firstly,progress based runaway electronsand measurement electrons introduced. Then, thecharacteristics three...

Hollow nanostructuring can facilitate the deep reconstruction of NiFeP into low-crystalline and defective heterostructured NiOOH/FeOOH with superior OER performance. <italic>In situ</italic> Raman spectroscopy shows evidence process.

CO2 photoreduction currently faces two challenges: low efficiency and poor product selectivity. Ultrathin two-dimensional bismuth oxyhalide, with a large number of surface vacancies (active sites), is an ideal material for regulating photoconversion. However, in this catalyst are easily deactivated during the reaction. relies on sufficient active sites; hence, we synthesized ultrathin Bi4O5Cl2 nanoplates via water-assisted self-assembly process photoswitchable Cl solar-driven CO2-to-CO...

Abstract Electrocatalytic nitrate (NO 3 − ) reduction reaction (NITRR) is an inspiring route for ammonia (NH synthesis at ambient condition. The metallic Cu‐based material with low cost and high activity one of the most promising electrocatalysts NITRR. However, due to weaker atomic H * ‐providing capacity, produced intermediate—nitrite tends accumulate on its surface, leading unsatisfactory NH selectivity Faradic efficiency (FE). Herein, a novel facile O 2 /Ar plasma oxidation subsequent...

Simulating photosynthesis has long been one of the ideas for realizing conversion solar energy into industrial chemicals. Heterogeneous N2 photofixation in water is a promising way sustainable production ammonia. However, mechanistic understanding complex aqueous photocatalytic reduction still lacking. In this study, light-dependent surface hydrogenation mechanism and light-independent protection catalyst are revealed on ultrathin Bi4 O5 Br2 (BOB) nanosheets, which creation annihilation...

Abstract Layered metal hydroxides (LMHs) are promising catalysts for oxygen evolution reaction. However, the hydrogen reaction (HER) activity of LMHs is unsatisfactory due to their poor conductivity and limited active sites. Herein, taking Ni(OH) 2 as demonstration, a novel “one stone five birds” plasma activation strategy synergistic with Ru single atoms (Ru SAs) doping developed boost HER by constructing heterostructured β‐Ni(OH) /Ni‐Ru SAs nanosheet arrays (NSAs). Benefiting from...

The selective photocatalytic conversion of CO

Developing efficient oxygen evolution reaction (OER) electrocatalysts for seawater electrolysis is still a big challenge. Herein, facile one-pot approach reported to synthesize RuO2 -incorporated NiFe-metal organic framework (RuO2 /NiFe-MOF) with unique nanobrick-nanosheet heterostructure as precatalyst. Driven by electric field, the /NiFe-MOF dynamically reconstructs into nanoparticles-anchored NiFe oxy/hydroxide nanosheets /NiFeOOH) coherent interface, during which dissolution and...

Plasma jet array is a promising device for producing low-temperature plasma at atmospheric pressure. In our letter, the effect of O2 additive on spatial uniformity one-dimensional helium described. The length in middle before injection less than that edges array. However, when small amount injected into array, increases and becomes approximately same as jets improvement due to enhancement Penning ionization caused by additive. Too much quantity additive, however, may lead discharge quenching

Metal-based cocatalysts have been widely applied in the photocatalytic CO₂ reduction reaction (CO₂RR) and integration of cocatalysts/semiconductors is expected to enhance selectivity catalytic reaction.

Chemical–physical synergistic etching enables the deep reconstruction of NiFe PBA into NiOOH/FeOOH nanoboxes, exhibiting superb OER performance. The nanoboxes-based ZABs deliver excellent electrochemical

Dielectric barrier discharge (DBD) is proved to be an effective method for surface treatment of polymers over the past 20 years and now widely used in fields modification. In this paper, polyethylene terephthalate (PET) films improving hydrophilicity using DBD excited by unipolar nanosecond pulses presented. Two typical discharges exhibiting homogeneous filamentary modes are obtained under certain experimental conditions, then, they modify PET films. The microstructure properties film before...

Dielectric barrier discharge (DBD) excitation by unipolar high voltage pulses is a promising approach for producing non-thermal plasma at atmospheric pressure. In this study, magnetic compression solid-state pulsed power generator was used to produce repetitive nanosecond the excitation. The DBD created using two liquid electrodes. electrical characteristics of and current are illustrated under different experimental conditions. nanosecond-pulse order tens amperes. This differs from common...

Pulsed dielectric barrier discharge is a promising method for producing low-temperature plasma. In our letter, we describe atmospheric-pressure plasma driven by repetitive nanosecond pulses. The temporal emission behaviour of the investigated fast images with 2 ns exposure time. Each image taken during one single pulse and not overlapped other in subsequent at 1 mm air gap diffuse homogeneous, but some constricted filaments are observed 4 gap. Discharge starts from center spreads outward...

In this paper, gliding discharges with a point-to-point electrode geometry were produced by repetitively pulsed power supply rise time of ∼100 ns and full-width at half-maximum ∼200 ns. The characteristics such investigated measuring their voltage–current waveforms taking photographs discharge images. Experimental results showed that once the breakdown occurred, nanosecond-pulse went into stable stage all air gaps, behaving in mode repetitive sparks. Under certain conditions, non-stable...

Power source is an important parameter that can affect the characteristics of atmospheric-pressure plasma jets (APPJs), because it play a key role on discharge and ionization process APPJs. In this paper, helium APPJs sustained by both nanosecond-pulse microsecond-pulse generators are compared from aspects plume length, current, consumption power, energy, optical emission spectrum. Experimental results showed pulsed APPJ was initiated near high-voltage electrode with small curvature radius,...