相关实验视频

Updated: Jan 15, 2026

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations

Published on: October 12, 2019

p-p 轨道合介导无人居住的州人口在Te-Doped NaNbO₃ 允许优化氧气进化路径,以实现高效的整体水分

Dongxuan Guo¹, Yousen Wu¹, Jianfeng Jiang¹

¹College of Chemistry and Chemical Engineering, Qiqihar University, Qiqihar, China.

Small (Weinheim an der Bergstrasse, Germany)

|January 14, 2026

概括

在酸 (NaNbO3) 中加入,优化了电催化水分裂. 这一策略增强了进化反应 (HER) 和氧进化反应 (OER) 的电荷脱和催化活性.

科学领域:

材料科学材料科学材料科学
电化学电化学电化学
催化剂是一种催化剂.

背景情况:

酸 (NaNbO3) 由于在Nb-O3位点的d-p杂交,在电催化水分裂中表现出局限性,导致热力学障碍.
在NaNbO3中接近费米水平的空置状态阻碍了有效的电荷吸附和水分裂的催化活性.

研究的目的:

通过结合 (Te) 来设计NaNbO3,以调节电子结构并提高电催化水分裂性能.
研究Te-O3位点的p-p轨道合对电荷移位和催化活性的影响.

主要方法:

将原子纳入NaNbO3网格中的过程.
改造材料的电子和催化性能的实验性表征.
对演变反应 (HER) 和氧演变反应 (OER) 的电催化试验.

主要成果:

工程 Te-O3 站点引入了 p-p 轨道合,与内在 d-p 杂交相竞争,并改善了电荷移位.
靠近费米水平的无人居住状态,优化氧演化反应 (OER) 路径.
在10 mA cm-2下,HER (68.00 mV) 和OER (283.40 mV) 的低超电位,以及1.65 V的整体水分裂电压.

结论:

这种p-p轨道竞争策略有效地提高了NaNbO3电催化剂活性和整体水分裂的稳定性.
泰的结合解决了活动稳定性权衡问题,通过重新配置电子移位和改善活动站点的可访问性.
这种方法为开发高性能矿基电催化剂提供了一个有前途的途径,用于高效的水分解.

关键词:

这就是NaNbO3的含量.在 d-p 混合化中.轨道竞争轨道竞争总体而言,水分化是水分化的.p-p 轨道合器

更多相关视频

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions

Published on: October 5, 2019

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts

Published on: August 7, 2018

相关概念视频

Molecular Orbital Theory II

Molecular Orbital Theory II

Molecular Orbital Energy Diagrams

π Molecular Orbitals of 1,3-Butadiene

π Molecular Orbitals of 1,3-Butadiene

Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...

P-N junction

P-N junction

A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...

Oxygenic Photosynthesis

Oxygenic Photosynthesis

Oxygenic photosynthesis is a fundamental process in which light energy is harnessed to drive the oxidation of water, leading to the production of molecular oxygen (O₂), adenosine triphosphate (ATP), and nicotinamide adenine dinucleotide phosphate (NADPH). This process is essential for sustaining aerobic life on Earth and is primarily carried out by cyanobacteria, algae, and plants. The core of oxygenic photosynthesis lies in the thylakoid membranes, where chlorophyll pigments facilitate...