Cover Image

Abstract

Peng Zhang, Guosheng Shao and co‐workers(DOI: 10.1002/inf2.12214) design and develop the flexible metallic TiC nanofiber/vertical graphene 1D/2D hetero‐structured as active electrocatalyst for advanced Li‐S batteries. In this cover, the VG vertical standing on TiC nanofibers was fabricated based on the electrospinning technique as a highway for sulfur species conversion, which would be a novel pathway for high energy Li‐S batteries design to power electric vehicles. image

Cytotoxicity of Metal‐Based Nanoparticles: From Mechanisms and Methods of Evaluation to Pathological Manifestations

“…For example, Ti-based NPs are widely used in various fields due to their excellent properties. [38,39] After exposure to TiO 2 NPs, the expression levels of p38 and JNK were increased, indicating that TiO 2 NP-induced oxidative stress activated the Nrf2, p38, and JNK MAPK signaling pathways. [40] Similarly, when Ag NPs are used as stressors, Caenorhabditis elegans could regulate the oxidative stress response through the p38 MAPK pathway.…”

Dual‐Modified Hollow Spherical Shell MoS2@TiO2/TiN Composites for Photocatalytic Hydrogen Production

“…The turning point value of the linear sweep voltammetry (LSV) curve is an important parameter to evaluate the onset potential of the proton reduction reaction (Figure 3F). [ 46 ] MTT has the lowest overpotential, indicating the lower catalytic onset potential of water reduction. In contrast, MoS 2 @TiO 2 exhibited not only a much lower onset potential, but also a larger photocurrent density than TiO 2 @TiN.…”

The Catalyst Design for Lithium‐Sulfur Batteries: Roles and Routes

“…The adsorption of LiPSs is the first step of the SRR catalytic process, in which the catalysts form XÀ S or LiÀ X bonds and enrich the affinity toward LiPSs. [41] Tuning the energy band of the catalyst [23] and increasing adsorption sites [24][25][26] can enhance the affinity toward the LiPSs. However, too strong adsorption ability would poison the active sites, therefore, the balanced chemical adsorption ability and catalytic activity are required to optimize the efficient utilization of catalysts.…”

“…This kinetics deterioration is even worse in the high sulfur loading cathode. Therefore, the shuttle effects and the sluggish transformation kinetic cannot be eradicated by only confining LiPSs [21–23] . Inspired by the broadly applied catalyst in the electrochemistry field, introducing catalysts to enhance the redox reaction kinetics of the Li−S batteries is a fundamental solution to suppress the shuttle effect and enhance the rate performance of the Li−S battery [24] …”

“…Therefore, the shuttle effects and the sluggish transformation kinetic cannot be eradicated by only confining LiPSs. [21][22][23] Inspired by the broadly applied catalyst in the electrochemistry field, introducing catalysts to enhance the redox reaction kinetics of the LiÀ S batteries is a fundamental solution to suppress the shuttle effect and enhance the rate performance of the LiÀ S battery. [24] Our interest in the catalytic effects in LiÀ S batteries started in 2014, inspired by the industrial desulfurization, [25] in which the graphene oxide (GO) was used as a desulfurizer to remove the concentrated H 2 S. During this process, GO was reduced and a graphene/S hybrid (HRGO) was obtained (Figure 1).…”