The high-efficiency coupling of a Ni coordinated/uncoordinated pyridine N-COF self-supporting nanofilm as an asymmetric supercapacitor.

A large-area COF film with a pore size of 3.9 nm was prepared on a gas-liquid interface by the virtue of the limiting and guiding functions of sodium dodecylbenzene sulfonate, followed by modification by Ni ions with the reversible redox reaction of Ni(II/III), where Ni was evidently anchored on the N in BPY. The obtained COF and Ni-COF nanofilms could avoid the inevitable aggregation and stacking of bulk COF, which facilitated a high specific capacitance of 0.

Covalent Organic Framework Fiber-Constructed Artificial Solid Electrolyte Interphase Layer: Facilitated Uniform Deposition of Li and Encapsulated Li Dendrite.

Due to ultrahigh theoretical capacity and ultralow redox poteneial, lithium metal is considered as a promising anode material. However, uneven lithium deposition, uncontrollable lithium dendrite formation, and fragile solid electrolyte interphase (SEI) lead to low lithium utilization, rapid capacity decay, and poor cycle performance. Herein, a robust artificial SEI film by coating the lithium surface with fibrous covalent organic framework (Fib-COF) was constructed, which effectively prevented dendrite penetration and battery short-circuits.

Life Satisfaction of Rural-To-Urban Migrants: Exploring the Influence of Socio-Demographic and Urbanisation Features in China.

China has experienced an ongoing urbanisation that associated with spatial transformation and personal changes, which are expected to have direct or indirect impacts on migrants' health and well-being. This study aims to investigate their life satisfaction and the significant influences. A quantitative research strategy was adopted, with the questionnaire survey towards 877 migrants across Hangzhou and Ningbo cities.

Patterns of Living Lost? Measuring Community Participation and Other Influences on the Health of Older Migrants in China.

Community participation is a key element of active aging that promotes a new paradigm to enhance health and well-being as people age. However, social isolation is often a concern for older migrants. In this study, we aimed to investigate the current status of older migrants' community participation and assess the main influences on three forms of welfare, development, and organizational participation.

High crystallinity Sn crystals on Ni foam: an ideal bimetallic catalyst for the electroreduction of carbon dioxide to syngas.

The investigation of highly efficient catalysts for the electrochemical reduction of carbon dioxide (ER-CO) is the most critical challenge to commercialize conversion and utilization of CO. Herein we propose a new and very promising catalyst, high crystallinity Sn crystals on Ni foam (Sn@f-Ni), for the electroreduction reaction of CO in potassium bicarbonate aqueous solution. The catalyst is fabricated on a pretreated Ni foam substrate through a galvanostatic electrodeposition strategy.

Pore Surface Engineering of Covalent Triazine Frameworks@MoS Electrocatalyst for the Hydrogen Evolution Reaction.

Electrochemical water splitting is an important strategy for the mass production of hydrogen. Development of synthesizable catalysts has always been one of the biggest obstacles to replace platinum-group catalysts. In this work, a high quality crystal polymer covalent triazine framework [CTF; Brunauer-Emmett-Teller (BET) surface area of 1562.