Formation of Flower-Like Carbon Nanosheet Aggregations and Their Electrochemical Application

Abstract

Figure S1. FESEM image of the product from a reaction carried out at (a) 750 o C and (b) 820 o C.

Preparation of re-constructed carbon nanosheet powders and their efficient lithium-ion storage mechanism

“…In addition, the intensity ratio of re-CNSs500 is approximately 1.29; it is advantageous to note that the thermal reduction is able to break the aromatic structures by producing defects, which can provide many more active sites for lithium-ions [13]. According to the data of nitrogen adsorption and desorption (Fig.4f), the total specific surface area of the re-CNSs500 is calculated to be 18.3 m 2 g -1 , respectively; these values are higher than that of the ox-re-CNSs (8.6 m 2 g -1 ) and previously reported natural graphite (1.7-6.0 m 2 g -1 ) [11,31]. The surface area of the re-CNSs500 is 2 times larger than that of the ox-re-CNSs.…”

“…In particular, compared with the low theoretical capacity of graphitic carbon, carbon nanomaterials and their composites exhibit higher capacity and potential application. Shen and Feng reported that flower-like carbon nanosheets could discharge an initial capacity of 580.7 mAh g -1 at 20 mA g -1 [11]. Song and co-workers synthesized novel hierarchical porous carbon nanosheets with quantities of micropores and mesopores and obtained reversible capacities of 748 mAh g -1 at 20 mA g -1 and 460mAh g -1 at 1 A g -1 [12].…”

Self-assembly flower-like porous carbon nanosheet powders for higher lithium-ion storage capacity

“…To date, several kinds of carbon nanomaterials, including flower-like nanosheets, hierarchical porous nanosheets, and hollow microspheres, have been reported to have higher capacities than the theoretical capacity of graphitic carbon [3][4][5]. Recently, we also prepared a carbon nanomaterial by using graphene-like carbon nano-fragments (CNFs) as a carbon building block for the anode of LIBs that can store a higher capacity than natural graphite [6,7].…”

Direct Electrochemistry of Glucose Oxidase on Nail‐like Carbon and Its Biosensing for Glucose

“…Since CNTs were discovered by Iijima in 1991 [11], CNMs have attracted considerable attention all over the world. Different structures of CNMs have been successfully realized, such as carbon nanofibers (CNFs) [12,13], highly ordered mesoporous carbon (OMC) [14,15], flower-like carbon [16], tree-like carbon [17], carbon hollow spheres [18,19] etc. Due to their remarkable surface area, high thermal resistance and high chemical stability, they have a wide range of applications including serving as electrode materials for lithiumion batteries [20], catalyst [21,22], hydrogen storage [23] and biosensor [24,25].…”