Facile synthesis of ZnO nanobullets by solution plasma without chemical additives. Issue 43 (5th August 2021)

• Record Type: Journal Article
• Authors: Kim, Kyusung; Chae, Sangwoo; Choi, Pil Gyu; Itoh, Toshio; Saito, Nagahiro; Masuda, Yoshitake
• Is Part Of: RSC advances. Volume 11:Issue 43(2021)
• Page Start: 26785
• Page End: 26790
• Publication Date: 2021-08-05
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/d1ra05008g
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : ZnO nano-bullets were synthesized using only Zn electrode and water by solution plasma and new electrode geometry improved discharge time up to 1 h. Abstract : ZnO nano-bullets were synthesized using solution plasma from only Zn electrode in water without any chemical agents. In this sustainable synthesis system, the rapid quenching reaction at the interface between the plasma/liquid phases facilitates the fast formation of nano-sized materials. The coil-to-pin type electrode geometry, which overcomes the discharge interruption owing to the electrode gap broadening of the typical pin-to-pin type enables the synthesis of numerous nanomaterials through a stable discharge for 1 h. The as-prepared samples exhibited a high crystalline ZnO structure without post calcination, and the length and width were 71.8 and 29.1 nm, respectively. The main exposed facet of ZnO nano-bullets was the (100) crystal facet, but interestingly, the (101) facet was confirmed at the inclined surfaces in the edges. The (101) crystal facet has an asymmetric Zn and O atom arrangement, and it could result in a focused electron density area with relatively high reactivity. Therefore, ZnO nano-bullets are promising materials for applications in advanced technologies.