Yue Zhao's research while affiliated with Dalian University of Technology and other places
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Publications (7)
In order to enhance the ammonia to hydrogen (ATH) energy efficiency, systematic study was carried out with atmospheric pressure alternating current arc discharge reactor (using a pair of stainless steel (SS) tube electrodes). Results showed that, using small-diameter SS tube electrodes with small discharge gaps forced more ammonia molecules to go t...
At ambient pressure, the effect of plasma discharge mode and reactor structure on ammonia decomposition to hydrogen was investigated. Dielectric barrier discharge (DBD) and alternating current (AC) arc discharge were produced upon adjusting the structure of the plasma reactor. By studying the discharge images, the voltage-current waveforms and the...
An atmospheric pressure AC discharge reactor with nickel (Ni), stainless steel (SS) and copper (Cu) tube electrodes has been systematically studied for ammonia decomposition. Ammonia conversion increased in the following order: Cu < SS < Ni. Conversion induction period was observed for both Ni and SS electrode reactors. The changes of the ammonia c...
Strongly adsorbed N atoms inhibit the ammonia decomposition reaction rate. Plasma-driven catalysis can solve this problem and increase the ammonia conversion from 7.8% to 99.9%. (15)NH3 isotope tracing and optical emission spectroscopy show that gas-phase active species (NH3*, NH˙) in the plasma zone facilitate the desorption step by an Eley-Rideal...
Not only aliens probe: Iron nitride plays an important role in many catalytic processes, such as Haber–Bosch process, for which knowledge of surface catalytic properties is vital. By using FTIR spectroscopic techniques, this work describes the surface active sites of iron nitride/fumed SiO2 by coupled with CO, NH3, and H2 as probe- molecules. Inter...
Citations
... Several experimental and theoretical studies have dealt with the plasma-assisted H 2 production using ammonia as fed gas [21,22,[24][25][26][27][28][29][30][31]. Some works have reported the use of mixtures of NH 3 plus other gases acting as dilutants or to protect against the corrosive effects of the ammonia [30,31]. ...
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... Concurrently, ammonia (NH 3 ), functioning as a hydrogen source, boasts a higher hydrogen density (contains 17.8 wt% H), implying that it can store the same quantity of hydrogen in a smaller volume [6][7][8]. Moreover, NH 3 can liberate hydrogen through facile catalytic decomposition or thermal decomposition [9,10]; hence, NH 3 holds promise in addressing hydrogen storage and distribution issues [11]. Nevertheless, the conventional Haber-Bosch process suffers from high energy consumption and pollution [12,13], necessitating the urgent development of greener and more convenient synthetic methodologies. ...
... 96 Warm plasma can maintain a moderate gas temperature for ammonia decomposition, with nonthermal arc plasma (NTAP) as one of the fundamental methods for warm plasma generation. In 2014, Zhao et al. 97 designed a NTAP reactor using two tube electrodes driven by alternating current. Despite the high energy efficiency of the system (12.5−16.4 ...
... In the 1950s, Anderson and co-workers developed iron nitride hydrogenation catalysts for the Fischer−Tropsch synthesis. 33 Iron nitrides have been found to catalyze ammonia and hydrazine decomposition, 34,35 amine synthesis, 36 and oxidative reactions with persulfate. 37 Various iron nitrides materials were also recognized as promising electrochemical catalysts for water splitting, 38 oxygen reduction, 39,40 and CO 2 reduction. ...
... The H Balmer lines H β at 486.1 nm [61], H α at 656.3 nm [29,61], and atomic N lines at 742 nm [61] indicated the dissociation of N 2 and H 2 in a N 2 -H 2 plasma. In addition, the NH band with peak at 336.1 nm, as a shoulder peak of N 2 (0, 0) with peak at 337.1 nm [29,30,33], and the NH 2 band (A 2 A 1 →X 2 B 1 ) with peak at 661.9 nm [62] were observed in Fig. S6. The relative intensities of the N, H α , NH, and NH 2 to N 2 (0,0) were normalized to those at a condition of "only plasma" for Ni-Al, Ni-Si, and SiO 2 and the results are presented in Fig. 11. ...
... The decomposition section includes the plasma generator and plasma reactor, which can have different configurations for reactor design and catalyst packing. Various types of nonthermal plasma reactors have been designed and investigated, including dielectric barrier discharge (DBD) [46,68,88,89], flowthrough micro-hollow cathode discharge (MHCD) [62,63,90], arc plasma (AP) [64][65][66], Gliding Discharge Plasma [45], plasma torch [67], self-sustained normal direct-current (DC) atmospheric pressure glow discharge [69], and plasma membrane reactor [47]. The most common configuration is catalyst packed in tubular reactors in the discharge region [91]. ...
... Furthermore, plasma can activate and accelerate the decomposition process of ammonia. Low-temperature plasma has different characteristics which enable it to be used in complex applications and combining with catalyst materials [63]. The development of dielectric barrier discharge plasma-catalyst-based NH 3 decomposition over ruthenium (Ru/Al 2 O 3 ) and soda glass (SiO 2 ) catalytic materials has been investigated [64]. ...
