Donghua University

About: Donghua University is a education organization based out in Shanghai, China. It is known for research contribution in the topics: Fiber & Nanofiber. The organization has 21155 authors who have published 21841 publications receiving 393091 citations. The organization is also known as: Dōnghuá Dàxué & China Textile University.

Why are Customers Loyal in Sharing-Economy Services? A Relational Benefits Perspective

Abstract: Purpose – This study seeks to:(1) introduce a systematic taxonomy of relational benefits that drive consumers to select a service provider and then to maintain the relationship with them in sharing-economy businesses; (2) assess the relative strengths of these relational benefits in influencing consumers’ behavioral intentions on sharing-economy services; and (3) examine how commitment mediates the influence of relational benefits on customer loyalty in this context.Design/methodology/approach – This study first conducted a focus group discussion and then collected data from online surveys completed by 440 respondents in China. The study employed structural equation modeling to test the hypotheses.Findings – The findings of the study show that confidence and social benefits, as previous studies indicate, have significant and positive effects on commitment in sharing-economy services. Moreover, safety benefits, a new type of relational benefits discovered in sharing-economy services, also have significant effects on commitment. Furthermore, this study finds that commitment acts as the mediating mechanism, through which confidence, social, and safety benefits operate with respect to their effects on customer loyalty. Interestingly, special treatment benefits were found to have insignificant effects on commitment and loyalty in this context.Practical implications – This paper provides sharing-economy managers with insight on how to better create and sustain loyal relationships through the provision of relational benefits.Originality/value – First, this study provides a framework for incorporating relationship marketing and sharing-economy services. Second, this study takes the initial step to offer a clear view of why customers would like to be involved in the peer-to-peer relationship in the sharing economy and to explain how to strengthen the relationships between customers and the peer service providers.

Molybdenum Carbide Anchored on Graphene Nanoribbons as Highly Efficient All-pH Hydrogen Evolution Reaction Electrocatalyst

Abstract: The demand for exploiting hydrogen as a new energy source has driven the development of feasible, efficient, and low-cost electrocatalysts for hydrogen evolution reaction (HER) in different reaction media. Herein, we report the synthesis of molybdenum carbide (Mo2C) nanoparticles anchored on graphene nanoribbons (GNRs) as HER electrocatalyst that can function well under acidic, basic, and neutral conditions. GNRs obtained by unzipping carbon nanotubes (CNTs) display strip-like structure, offering abundant active sites for growing Mo2C nanoparticles. Furthermore, GNRs could provide a fast electron transport pathway as well as large exposed surface area to allow full impregnation of electrolytes. Coupling with the anticorrosion feature of Mo2C nanoparticles, the Mo2C–GNR hybrid exhibits outstanding electrocatalytic performance in all of the acidic, basic, and neutral media, making it promising as a highly efficient electrocatalyst under conditions at all pH values.

Stable Confinement of Black Phosphorus Quantum Dots on Black Tin Oxide Nanotubes: A Robust, Double-Active Electrocatalyst toward Efficient Nitrogen Fixation.

Abstract: A conceptually new, metal-free electrocatalyst, black phosphorus (BP) is presented, which is further downsized to quantum dots (QDs) for larger surface areas, and thus, more active sites than the bulk form. However, BP QDs are prone to agglomeration, which inevitably results in the loss of active sites. Besides, their poor conductivity is not favorable for charge transport during electrolysis. To solve these problems, an electrochemically active, electrically conductive matrix, black tin oxide (SnO2-x ) nanotubes, is employed for the first time. Through facile self-assembly, BP QDs are stably confined on the SnO2-x nanotubes due to Sn-P coordination, resulting in a robust, double-active electrocatalyst. Benefiting from their synergistic superiority, the BP@SnO2-x nanotubes deliver impressively high ammonia yield and Faradaic efficiency, which represent a successful attempt toward advanced hybrid electrocatalysts for ambient nitrogen fixation.

Hierarchically Rough Structured and Self-Powered Pressure Sensor Textile for Motion Sensing and Pulse Monitoring.

Abstract: Nowadays, real-time human motion sensing and pulse monitoring can provide significant basis for health assessment and medical diagnosis. Nevertheless, it is still a big challenge to design a lightweight, flexible, and energy-sustainable pressure sensor with high sensitivity and breathability. Here, we fabricated a triboelectric all-fiber structured pressure sensor via a facile electrospinning technique. The constructed sensor textile holds a composite structure made up of a polyvinylidene fluoride/Ag nanowire nanofibrous membrane (NFM), an ethyl cellulose NFM, and two layers of conductive fabrics. This wearable device with high shape adaptability exhibited excellent sensing capability because of the introduced hierarchically rough structure on the nanofibers. The sensitivity can reach up to 1.67 and 0.20 V·kPa-1 in the pressure range of 0-3 and 3-32 kPa, respectively. The fabricated sensor textile also showed a superior mechanical stability even after continuous operation of 7200 working cycles. This sensor textile was easily conformable on different desired body parts for dynamic motion sensing and real-time pulse monitoring. It can work in a self-powered manner to detect and quantify various human motions associated with joints, such as elbows, knees, and ankles. Additionally, it can be placed on the carotid artery to capture the pulse signals, serving as a reliable way to reflect the state of health. This work has great possibilities to promote the rapid advancement and broad applications of multifunctional pressure sensors and next-generation wearable electronics.