Developing a bifunctional water splitting catalyst with high‐efficiency and low‐cost are crucial in the electrolysis water industry. Here, we have reported a rational design and simple preparation method of MoS2‐based bifunctional electrocatalyst on carbon cloth. The optimized P‐doped MoS2@CoP/CC catalyst presents a low HER/OER overpotentials of 64 mV and 282 mV in alkaline solution as well as 72 mV

This study reports on the impact of identity and compositions of buffer ions on OER performance at a wide range of pH levels using a model IrOx electrocatalyst. Rigorous microkinetic analysis employing kinetic isotope effects, Tafel analysis, and temperature dependence measurement was conducted to establish rate expression isolated from the diffusion contribution of buffer ions and solution resistance

Aqueous zinc ion hybrid supercapacitors are attracting extensive interest as a promising energy storage technology due to their high safety, low cost and long stability. At present, however, there is a lack of understanding of the potential window and self‐discharge of this aqueous energy storage technology. Here, we report the first systematic investigation of the potential window of this device by

The development of efficient and durable bifunctional electrocatalyst from non‐precious metals is crucial for electrochemical water splitting, hitherto hindered by sluggish kinetics in alkaline conditions. Herein, echinop‐like bimetallic CoNiP/CoNi alloy was synthesized from the metal‐organic framework (MOF) serving as an efficient catalyst for oxygen evolution reaction (OER), with a low overpotential

The deoxydehydration of carbohydrates represents a key target to leverage renewable biomass resources chemically. Using a vanadium(V)‐based catalyst, we demonstrate that it is possible to directly deoxydehydrate cyclic trans‐diol substrates. Accompanying mechanistic characterisation of this process by density functional calculations points to an energetically tractable route for deoxydehydration of

Detrimental charge recombination occurring at photoanode/electrolyte junction severely impedes photoelectrochemical (PEC) performance. The deposition of cobalt phosphate (CoPi) onto photoanodes is an efficient approach to achieve high PEC efficiency. However, their performance to the required level still battles huge challenges due to the passivation effect of CoPi. Herein, a novel function tunable

Manganese‐based oxide is arguably one of the most well‐studied cathode materials for zinc ion battery due to its wide oxidation states, cost‐effectiveness, and matured synthesis process. As a result, there are numerous reports that show significant strides in the progress of Mn‐based oxides as ZIB cathode. However, ironically, due to the sheer number of Mn‐based oxides that have been published in recent

Perovskite solar cells (PSCs) have triggered a research trend in solar energy devices in view of their high power conversion efficiency and ease of fabrication. However, more delicate strategies are still required to suppress carrier recombination at charge transfer interfaces, which is the necessary path to high‐efficiency solar cells. Here, a p‐p + homojunction is constructed on basis of NiO film

Numerous nanostructured materials have been reported as efficient sulfur host to suppress the problematic “shuttling” of lithium polysulfides (LiPSs) in lithium‐sulfur (Li‐S) batteries. However, direct comparison of these materials in their efficiency of suppressing the LiPSs shuttling is challenging, due to the structural/morphological difference between individual materials. Herein, we introduce

Surface imperfections created during fabrication process in halide perovskites (HPs) films could induce formation of various defect sites that affect device performance and stability. In this work, all‐organic surface modifiers consisting of alkylammonium cations and alkanoate anions are introduced on top of HP layer to passivate the interfacial vacancies and improve moisture tolerance. Endowed with

An interesting contribution to solving the climate crisis involves the use of CO 2 as a feedstock for monomers to produce sustainable plastics. In the European Horizon 2020 project “OCEAN” we develop a continuous multistep process from CO 2 to oxalic acid and derivatives, starting with the electrochemical reduction of CO 2 to potassium formate. The subsequent formate to oxalate coupling is a reaction

In the most recent decade, glycerol electrooxidation (GEOR) has attracted extensive research interest for valorization of glycerol, i.e., the conversion of glycerol to value‐added products. These reactions at platinum, palladium, and gold electrodes have a lot of uncertainty in their reaction mechanisms, which has generated some controversies. This review gathers many reported experimental results

The dynamic information of lithium ion battery active materials obtained from coin cell‐based in situ characterizations might not represent the properties of the active material itself because many other factors in the cell could have impacts on the cell performance. To address this problem, a single particle cell was developed to perform the in situ characterization without the interference of inactive

Squaraines and croconaines are organic dyes characterized by intense absorption in the visible or near‐infrared (NIR) spectral regions with applications ranging from biology to material sciences. They are commonly synthesized by condensation reactions of oxocarbonic acids (squaric or croconic acid, respectively) with electron‐rich aromatic compounds in high boiling organic solvents. Here, we report

Abstract: Electrochemical oxidation of biomass substrates to valuable bio‐chemicals is highly attractive. However, the design of efficient, selective, stable, and inexpensive electrocatalysts remains challenging. Here we report how a 3D highly ordered mesoporous Co 3 O 4 /nickel foam (om‐Co 3 O 4 /NF) electrode fulfils those criteria in the electrochemical oxidation of 5‐hydroxymethylfurfural (HMF)

High‐performance non‐precious metal‐based catalysts at the cathode is a major challenge in future practical applications. Herein, a developed soft‐template route successfully achieved a self‐assembled arrangement of sulfur sources, facilitating the anion exchange. Meanwhile, compared with pristine cobalt disulfide without templates, the prepared cobalt disulfide presented a lattice shrinking phenomenon

The atmospheric CO 2 concentration continues a rapid rise to its current record high value of 416 ppm for the time being. It calls for advanced CO 2 capture technologies. One of the attractive technologies is physical adsorption‐based separation, which shows easy regeneration and long cycle stability, and thus reduced energy penalties and cost. The extensive research on this topic is evidenced by the

Due to an increasing demand on high performance and rare‐metal free energy storage systems, organic rechargeable battery has attracted much attentions. To increase the capacity of the whole battery, we have fabricated coin‐type buckypaper cells composed of a trioxotriangulene neutral radical derivative ( H 3 TOT ) and single‐walled carbon nanotubes as a cathode and lithium metal plate as an anode without

As a new product of high‐value utilization of lignin, lignin micro/nano particles (LMNPs) have attracted the attention of researchers due to their non‐toxicity, corrosion‐resistance, UV‐resistance, and other excellent characteristics and potential application value. This article outlined the main preparation methods of LMNPs at the current stage, summarized and compared them from three perspectives

High‐temperature phase of β‐Cu 2 Se always appears as the major phase for the reaction carried out using chemical solution methods. We discover a procedure that could fabricate single phase of α‐Cu 2 Se 1‐x Te x (x = 0.02 and 0.04) by room‐temperature aqueous synthesis using NaBH 4 as reducing agent followed by cold pressing and sintering at 650˚C for 6 h in a flowing mixture gas of 20% H 2 and 80%