Recent Progress of the Solid-State Electrolytes for High-Energy Metal-Based Batteries

Semiconductor polymeric graphitic carbon nitride (g-C3N4) photocatalysts have attracted dramatically growing attention in the field of the visible-light-induced hydrogen evolution reaction (HER) because of their facile synthesis, easy functionalization, attractive electronic band structure, high physicochemical stability and photocatalytic activity. This review article presents a panorama of the latest advancements in the rational design and development of g-C3N4 and g-C3N4-based composite photocatalysts for HER application. Concretely, the review starts with the development history, synthetic strategy, electronic structure and physicochemical characteristics of g-C3N4 materials, followed by the rational design and engineering of various nanostructured g-C3N4 (e.g. thinner, highly crystalline, doped, and porous g-C3N4) photocatalysts for HER application. Then a series of highly efficient g-C3N4 (e.g., metal/g-C3N4, semiconductor/g-C3N4, metal organic framework/g-C3N4, carbon/g-C3N4, conducting polymer/g-C3N4, sensitizer/g-C3N4) composite photocatalysts are exemplified. Lastly, this review provides a comprehensive summary and outlook on the major challenges, opportunities, and inspiring perspectives for future research in this hot area on the basis of pioneering works. It is believed that the emerging g-C3N4-based photocatalysts will act as the “holy grail” for highly efficient photocatalytic HER under visible-light irradiation.

Semiconductor polymeric graphitic carbon nitride photocatalysts: the “holy grail” for the photocatalytic hydrogen evolution reaction under visible light

A critical review in strategies to improve photocatalytic water splitting towards hydrogen production

Semiconductor‐based Z‐scheme heterojunction photocatalysts have received considerable attention for solar energy conversion and environmental purification due to their spatially separated reduction and oxidation sites, effective separation and transportation of photo‐excited charge carriers and strong redox ability. With their wide visible‐light responsive range and high photocatalytic activity, metal sulphide is an important material in developing photocatalysts. This review summarizes and highlights recent research progress in sulphide‐based direct Z‐scheme photocatalysts, followed by analysis on the limitations over all‐solid‐state Z‐scheme photocatalyst. Furthermore, the applications and characterization methods of sulphide‐based direct Z‐scheme photocatalyst are summarized. Finally, the challenges and perspectives of sulphide‐based Z‐scheme photocatalyst are discussed.

Review on Metal Sulphide-based Z-scheme Photocatalysts

Nanomaterials and technologies for low temperature solid oxide fuel cells : Recent advances, challenges and opportunities

Double Z-scheme ZnO/ZnS/g-C 3 N 4 ternary structure for efficient photocatalytic H 2 production

We report a confined proton transportation in the CeO2/CeO2−δ core–shell structure to build up proton shuttles, leading to a super proton conductivity of 0.16 S cm–1 for the electrolyte and advance...

Proton Shuttles in CeO2/CeO2−δ Core–Shell Structure

Robust ferromagnetic ordering at, and well above room temperature is observed in pure transparent MgO thin films (<170 nm thick) deposited by three different techniques. Careful study of the wid ...

Room temperature ferromagnetism in pristine MgO thin films

Natural hematite ore is used as a novel electrolyte material for advanced solid oxide fuel cells (SOFCs). This hematite-based system exhibits a maximum power density of 225 mW cm−2 at 600 °C and reaches 467 mW cm−2 when the hematite is mixed with perovskite-structured La0.6Sr0.4Co0.2Fe0.8O3–δ. These results demonstrate that natural materials for next-generation SOFCs can influence the multiutilization of natural resources, thereby affecting the environment and energy sustainability.

Yan Wu

Papers

Double Z-scheme ZnO/ZnS/g-C 3 N 4 ternary structure for efficient photocatalytic H 2 production

Proton Shuttles in CeO2/CeO2−δ Core–Shell Structure

Room temperature ferromagnetism in pristine MgO thin films

Natural Hematite for Next‐Generation Solid Oxide Fuel Cells

Electrical properties of nanocube CeO2 in advanced solid oxide fuel cells