Feng Li

Single atomic copper doping in ultrathin nitrogenated carbon nanosheets over 20.9 wt% was achieved, greatly boosting the oxygen reduction catalysis.

Tuning the coupling interface of a heterostructured catalyst is an effective approach to achieve abundant surface catalytic active sites and strong electronic interactions among active materials for improving electrocatalytic water splitting performance. Herein, we report a novel heterogeneous catalyst comprising Ni3S2 nanoparticles embedded in ultrathin NiV-layered double hydroxide nanosheet arrays supported on nickel foam, denoted as Ni3S2@NiV-LDH/NF. We demonstrate that the active edge-state

The hydrogen evolution reaction (HER) is one of the most important pathways for producing pure and clean hydrogen. Although platinum (Pt) is the most efficient HER electrocatalyst, its practical application is significantly hindered by high-cost and scarcity. In this work, an Mo_xC with incorporated Mo vacancies and macroporous inverse opal-like (IOL) structure (Mo_xC-IOL) was synthesized and studied as a low-cost efficient HER electrocatalyst. The macroporous IOL structure w

Iron (Fe)-doped porous cobalt phosphide polyhedrons are designed and synthesized as an efficient bifunctional electrocatalyst for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). The synthesis strategy involves one-step route for doping foreign metallic element and forming porous cobalt phosphide polyhedrons. With varying doping levels of Fe, the optimized Fe-doped porous cobalt phosphide polyhedron exhibits significantly enhanced HER and OER performances, including lo

Developing covalent organic frameworks (COFs) with good electrical conductivity is essential to widen their range of practical applications. Thermal annealing is known to be a facile approach for enhancing conductivity. However, at higher temperatures, most COFs undergo amorphization and/or thermal degradation because of the lack of linker rigidity and physicochemical stability. Here, we report the synthesis of a conductive benzoxazole-linked COF/carbon hybrid material (BCOF-600C) by simple ther

This is the first of a set of articles on protein adsorption on low-temperature isotropic carbon (LTIC), a reputed blood compatible material. Surface-induced conformational changes of albumin, fibrinogen, and some small proteins were measured by differential scanning calorimetry (DSC) on LTIC powders and colloidal silica. The LTIC surface significantly alters the DSC response (denaturation?) in proteins studied in different buffer solutions. We use the term "denaturation" to refer to altered pro

Rational design and modification of the buried interface toward high performance perovskite solar cells (PSCs) are highly desired and challenging. Here, we demonstrate a series of guanidinium passivators with multiamine substitutions to shed light on the effective passivation geometry at the SnO2/perovskite heterojunction interface. Comparative theoretical and experimental studies reveal that the binding geometry of the highly polarized imine moiety in guanidinium passivators dominates its energ

Abstract A novel synthesis strategy is demonstrated to prepare Mo 3 P/Mo nanobelts with porous structure for the first time. The growth and formation mechanism of the porous Mo 3 P/Mo nanobelt structure was disclosed by varying the contents of H 2 /PH 3 and the reaction temperature. During the hydrogen evolution reaction (HER) catalysis, the optimized porous Mo 3 P/Mo nanobelts exhibited a small overpotential of 78 mV at a current density of 10 mA cm −2 and a low Tafel slope of 43 mV dec −1 , as

Engineering defects in crystalline electrocatalysts is an effective approach to tailor the electronic structure and number of active sites, which are essential for the intrinsic activity of the hydrogen evolution reaction (HER). Unlike previously reported methods, we demonstrate a confinement effect using a mesoporous template for in situ fabrication of cationic W vacancies in as-prepared ordered mesoporous tungsten phosphide (WP) nanostructures by adjusting the nonstoichiometric ratio of the pr

This paper correlates molecular structure of fibrinogen to its adsorption properties at the solid-water interface. These properties play an integral role in helping fibrinogen fulfill its biological functions. We first introduce some unique surface (interfacial) attributes of fibrinogen by comparing it to other plasma proteins. We consider its concentration on_solid surfaces, effects of solid substrates, adsorption kinetics and isotherms, competitive adsorption, structural adaptivity, and platel