Searching for high‐efficiency nonprecious bifunctional electrocatalysts for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is paramount for the advancement of water electrolysis technologies and the associated renewable energy devices. Modulation of electronic structure of an electrocatalyst via heterointerface engineering represents an efficient strategy to improve its electrocatalytic performance. Herein, a feasible hydrothermal synthesis of a novel heterostructured catalyst was demonstrated, comprising CoS2 nanocubes and vertically aligned MoS2 nanosheet arrays directly grown on flexible and conductive carbon cloth (CC) substrate (denoted as CoS2/MoS2@CC). Thanks to the elaborate interface engineering and vertically aligned nanosheet arrayed architecture, the resultant self‐supported CoS2/MoS2@CC electrode possessed enriched exposed active sites, modulated electronic configuration, multidimensional mass transport channels, and outstanding mechanical strength, thereby affording exceptional electrocatalytic performances towards the HER and OER in alkaline electrolyte with overpotentials of 71 and 274 mV at 10 mA cm−2, respectively. In addition, a two‐electrode electrolyzer assembled by CoS2/MoS2@CC required a cell voltage of 1.59 V at 10 mA cm−2 with nearly 100 % faradaic efficiency and remarkable durability, showing great potential for scalable and economical water electrolysis.

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Electrodeposited zinc-nickel alloy coatings have been widely adopted for surface treatment of automobile body steel sheet for high corrosion resistance. The corrosion behavior of the coatings has been related with the components of nickel, and the zinc-nickel alloy passive coatings have much higher corrosion resistance than that of zinc-nickel alloy coatings. In the present paper, the corrosion resistance behavior of the zinc-nickel alloy coatings obtained by new process and formulation has been studied by means of the electrochemistry test and neutral salt spray test. And it is discovered that the properties of corrosion resistance of zinc-nickel alloy passive coatings were better than that of zinc passive coatings, Cadmium passive coatings and alloys of electrodeposited cadmium-titanium. The components of corrosion productions, in terms of X-ray diffraction (XRD), are mainly ZnO, ZnCl 2 ·4Zn(OH) 2 and small quantity of 2ZnCO 3 · 3Zn(OH) 2 . The component of zinc-nickel alloy coatings has been investigated with Glow Discharge Optical Emission Spectrometry (GDA-750). And it is found that as the thickness of zinc-nickel alloy coatings increases, the component of zinc increases from beginning to end, but the peak value of nickel appears and an enrichment of nickel in the coatings comes into being. Because the electrodeposited zinc-nickel alloy coatings exhibit different alloy phases as a function of their alloy composition, in this paper, the crystal structure changing with the different component of nickel has been studied in terms of XRD. The result shows that electrodeposited zinc-nickel alloy has different phases: α-phase, a solid solution of zinc in nickel with an equilibrium solubility of about more than 79% nickel; γ -phase, an intermediate phase with a composition Ni 5 Zn 21 ; η-phase, a solid solution of nickel in zinc with less than 5% nickel; and δ-phase (Ni 3 Zn 22 ) appeared from η-phase to α-phase with increasing content of nickel.

Gamification is a developing trend that can work on customers' motivation and performance in online business areas. Notwithstanding, it is still vigorously debated as there is a continuous conversation inside the gamification community about whether individual gamification elements may really weaken or improve on customers' intrinsic and extrinsic motivations as well as the effect on the consumer's perceived enjoyment and purchase intention. The study uses a questionnaire survey as the research method. A total of 310 questionnaires were distributed, and after the data screening, 302 sets were valid data. The data analysis for this study was analyzed by using SPSS and Smart-PLS. The findings of this study show that intrinsic and extrinsic gaming elements affect consumers' purchase intention in gamification. This study shows how extrinsic gaming elements such as points, badges, feedback and challenges are affecting customers' perceived enjoyment. Furthermore, intrinsic gaming elements such as leaderboards, levels, avatars, and privacy control are affecting customers' perceived enjoyment. It also shows that perceived enjoyment positively affects purchase intention and mediates the relationship between intrinsic and extrinsic gaming elements and purchase intention. Additionally, it shows that promotion focus negatively moderates the relationship between intrinsic elements and perceived enjoyment. This study presents a new research model to explore the effect of extrinsic and intrinsic elements in gamification on purchase intention. The results of this research may help game designers to identify the right design features for the right customers, which has important practical implications for online business development.

Ischemic stroke is characterized by high morbidity, disability, and mortality. Unfortunately, the only FDA-approved pharmacological thrombolytic, alteplase, has a narrow therapeutic window of only 4.5 h. Other drugs like neuroprotective...