Cellulose-derived carbon scaffolds with bidirectional gradient FeO distribution: Integration of green EMI shielding and thermal management.

Cellulose papers (CPs) possess a pore structure, rendering them ideal precursors for carbon scaffolds because of their renewability. However, achieving a tradeoff between high electromagnetic shielding effectiveness and low reflection coefficient poses a tremendous challenge for CP-based carbon scaffolds. To meet the challenge, leveraging the synergistic effect of gravity and evaporation dynamics, laminar CP-based carbon scaffolds with a bidirectional gradient distribution of FeO nanoparticles were fabricated via immersion, drying, and carbonization processes.

A high-performance and flexible electrode film based on bacterial cellulose/polypyrrole/nitrogen-doped graphene for supercapacitors.

With the development and popularity of portable electronic devices, there is an urgent need for flexible energy storage devices suitable for mass production. We report freestanding paper electrodes for supercapacitors fabricated via a simple but efficient two-step method. Nitrogen-doped graphene (N-rGO) was first prepared via a hydrothermal method.

Effect of different dosages of sodium butyrate and niacin on growth, faecal microbiota and Vitamin B metabolism in weaned piglets.

Aims: Our study aimed to evaluate the effects of different dosages of sodium butyrate and niacin on the growth performance, faecal Vitamin B and microbiota in weaned piglets.

Methods And Results: Seventy-two weaned piglets (Duroc × Landrace × Yorkshire, age of 21 days) were randomly assigned to one of six treatments (12 pigs/treatment); the control (CT) group was administered a basal diet. The groups in which concentration ratios of sodium butyrate to niacin were 100: 1, 100: 2, 100: 4, 100: 8 and 100: 16 (BN1, BN2, BN4, BN8 and BN16) were administered a basal diet supplemented with 2000 mg kg sodium butyrate and 20, 40, 80, 160 or 320 mg·kg niacin.