Revealing the CO adsorption blocking mechanism in flexible low-silica small-pore zeolites three-dimensional electron diffraction.

Low-silica small-pore zeolites are essential for CO selective adsorption; however, some Na-form flexible types exhibit negligible performance. Advanced three-dimensional electron diffraction elucidated the blocking mechanism: Na ions in elliptical 8-rings hinder CO diffusion. Structural insights guided the design of K-form types with wider 8-rings, achieving enhanced CO adsorption.

Effects of Qiye Shen'an Pian Combined with Glutamate and Vitamin B1 on Fatigue State, Immune Function and Quality of Life in Patients with Chronic Fatigue Syndrome.

Objective: To observe the effects of Qiye Shen'an Pian combined with ghrelin and vitamin B1 on the fatigue status, immune function, and quality of life of patients with chronic fatigue syndrome (CFS), focusing specifically on the efficacy of this combination therapy.

Methods: In this prospective study, 106 CFS patients admitted from June 2021 to June 2023 were selected. Using a simple randomisation method, patients were divided into two groups.

Unraveling a Stable 16-Ring Aluminophosphate DNL-11 through Three-Dimensional Electron Diffraction for Atmospheric Water Harvesting.

Sorption-based atmospheric water harvesting (AWH) is a promising solution for addressing water scarcity. Developing cost-effective and stable water adsorbents with high water uptake capacity and a low-temperature regeneration requirement is a crucially important procedure. In this Communication, we present a novel and stable aluminophosphate (AlPO) molecular sieve (MS) named DNL-11 with 16-ring channels synthesized by using an affordable and commercialized organic structure directing agent (OSDA), whose crystallographic structure is elucidated by three-dimensional electron diffraction (3D ED).

Fluoride- and Seed-Free Synthesis of Pure-Silica Zeolite Adsorbent and Matrix Using OSDA-Mismatch Approach.

The pure-silica zeolite plays a crucially important role in the gas separation of alkane/alkene, the low-k dielectric material, and the robust matrix for confining metal species during catalysis. However, the environmentally friendly synthesis of pure-silica zeolites is still challenging since (1) the toxic fluoride or dealuminum seeds are inevitably utilized through the hydrothermal synthesis and (2) it will also take a longer crystallization time. Herein, we present an efficient method called the OSDA-mismatch approach for the fluoride- and seed-free synthesis of pure-silica zeolites using (enriched 4-rings) as the sole silica source.