Controllable synthesis of size-tunable h-nickel nanoparticles

Rational Design of Fe2O3 Nanocube‐Based Anodes for High‐Performance Li–Ion Batteries

“…The excellent cycling behaviors and C-rate performances of the Fe 2 O 3 -NCs-G composite were much higher than those of the commercial graphite electrode. Furthermore, when compared to other Fe 2 O 3 -based electrodes under similar conditions (Table S1), [28,36,43,[54][55][56][57] the Fe 2 O 3 -NCs-G composite electrode manifested considerably enhanced Li storage properties with a higher reversible capacity, more stable capacity retention, and faster rate capability. The conducting graphite matrix of the Fe 2 O 3 -NCs-G composite improves electrical conductivity, effectively increasing the Li-ion diffusion kinetics, which results in faster Li-storage performance.…”

“…[21][22][23][24][25] Therefore, to improve their electrochemical performances, several methods have been explored to fabricate various types of nanostructured Fe 2 O 3 , including nanorods, nanoflakes, nanocubes, nanotubes, and nanowires. [26][27][28][29][30] Although nanostructured materials have shown enhanced electrochemical performances, their high surface energy can lead to their agglomeration during repeated cycling, which results in poor capacity retentions. Therefore, to overcome these problems, nanocomposite materials modified with various carbons have been suggested, as carbon in the composites hinders the agglomeration of nanomaterials.…”

Bi2O2CO3 Nanosheet Composites with Bi-Based Metal–Organic Frameworks for Photocatalytic H2O2 Production

“…At this stage, the interfacial region on the Bi 2 O 2 CO 3 side becomes positively charged due to the loss of electrons, thus resulting in the formation of an electron depletion region and an upward bending of the Bi 2 O 2 CO 3 band edge. 44,45 On the other hand, the interfacial region next to the Bi-MOF takes up a negative charge, creating an electron accumulation layer and bending 47 Furthermore, B/BF-750 exhibited the smallest circle radius (Figure 7b), implying that it has an efficient charge transfer interface. The aforementioned results provide further corroboration that the B/BF-750 heterostructure can accelerate the separation of electron−hole pairs, thereby significantly enhancing the photocatalytic H 2 O 2 production efficiency.…”

A 2D coordination polymer assembled from a nickel(II) tetraazamacrocyclic cation and 4,4′-(dimethylsilanediyl)diphthalate(3–) linker

“…The most popular among them is 4,4 0 ,4 00 ,4 000 -(silanetetrayl)tetrabenzoate (Davies et al, 2010;Gotthardt et al, 2012;Xue et al, 2013;Zhang et al, 2013), though silanes with lesser numbers of 4-carboxybenzoic acid substituents (Davies et al, 2008;Liu et al, 2009;Turcan-Trofin et al, 2018;Pugh et al, 2019), as well as more sophisticated linkers containing phthalate (Cazacu et al, 2014) and isophthalate units (Frahm et al, 2011;Tian et al, 2017), have also been investigated. All the above-mentioned compounds contain mono-or oligonuclear SBUs with solvent molecules or N-containing heterocycles saturating the coordination spheres of the metal ions and no structures including macrocyclic metal cations have been described.…”