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Search results for metal-organic frameworks

Nanomaterials Sep 26, 2023

Thiol ligands modify metal nanocluster structures and optical properties

Metal nanoclusters are tiny, crystalline structures up to two nanometers (2 x 10-9 meters) in diameter that contain a few to hundreds of metal atoms. Understanding the precise assembly of metal nanoclusters is paramount ...

Optics & Photonics Sep 22, 2023

Smartphone utilizes 3D information encryption with dual-light-emitting materials

Over the past decade, there has been remarkable advancement in state-of-the-art technologies, leading to a profound alteration in the way individuals interact and exchange information, resulting in the emergence of a "hyper-connected ...

Analytical Chemistry Sep 21, 2023

Tröger's base derived 3D-porous aromatic frameworks for near-unity selectivity of CO2 photoconversion

The global energy crisis is exacerbated by the continuous consumption of fossil fuels during the rapid development of modern industries. In addition, the survival and development of human beings is also being seriously affected ...

Materials Science Sep 21, 2023

Ultrathin films achieve record hydrogen-nitrogen separation

Metal-organic frameworks (MOFs) are a class of materials that contain nano-sized pores. These pores give MOFs record-breaking internal surface areas, which make them extremely versatile for a number of applications: separating ...

Analytical Chemistry Sep 20, 2023

How do zeolite-encapsulated metal catalysts act on hydrogen-related catalytic reactions?

Zeolites encapsulated metal and metal oxide species (regarded as metal@zeolite) are an important type of heterogeneous catalyst. They give performances that steadily outperform the traditional supported catalysts in many ...

Earth Sciences Sep 18, 2023

Desert dust storms carry human-made toxic pollutants, and the health risk extends indoors

Humans have contended with dust storms for thousands of years, ever since early civilizations appeared in the Middle East and North Africa. But modern desert dust storms are different from their preindustrial counterparts.

Analytical Chemistry Sep 11, 2023

New ionic materials boost hydrogen fuel cell efficiency

A team of researchers, affiliated with UNIST has made a groundbreaking advancement in improving the efficiency of hydrogen fuel cells, which are gaining significant attention as eco-friendly next-generation energy sources.

Analytical Chemistry Sep 1, 2023

Chemical engineers draft a roadmap for research into metallic 'sponges' for clean hydrogen

Metal organic frameworks (MOFs) could deliver a major efficiency boost to the photocatalytic production of clean hydrogen. Chemical engineers have drafted a comprehensive overview of the state of their field and a plan for ...

Nanomaterials Aug 31, 2023

Metal organic framework nanosheets employed as ion carriers for self-optimized zinc anode

Aqueous rechargeable zinc ion batteries are promising components for electric grid storage due to their low cost and intrinsic safety. However, their practical implementation is hindered by poor reversibility of the zinc ...

Analytical Chemistry Aug 29, 2023

A first for ferrocene: Organometallic capsule with unusual charge-transfer interactions

Ferrocene is an emergent organic-metal hybrid compound, and its accidental discovery has led to the rapid development of organometallic chemistry. Aside from its interesting structure, which consists of an iron atom sandwiched ...

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