封面:追踪Ni/γ-Al2O3上甲烷干重整过程中的碳沉积模式(ChemCatChem 8/2025)

IF 3.8 3区 化学 Q2 CHEMISTRY, PHYSICAL
ChemCatChem Pub Date : 2025-04-15 DOI:10.1002/cctc.202580801
Hale Ay, Haiyan Mao, Jun Xu, Jefferey A. Reimer, Deniz Uner
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引用次数: 0

摘要

封面用模型和真实图像说明了原子尺度反应的动力学。紫色的镍原子表示催化剂表面的活性中心,而红色的氧原子、黑色的碳原子和白色的氢原子表示反应气体分子。背景中的蓝灰色原子象征着氧化铝载体。真实的TEM图像在背景中:章鱼碳在大Ni颗粒上形成,这是由于甲烷对金属的有利吸附,而二氧化碳优先吸附在载体上。在他们的研究文章(DOI: 10.1002/ cccc .202401856)中,D. Uner及其同事报告了他们如何通过SS 13C NMR波谱成功表征碳结构,以及在CO2/CH4 = 1:1的稳态反应中CO2的间歇性脉冲如何抑制焦炭的形成。艺术:Yaren Uslu。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Front Cover: Tracking the Mode of Carbon Deposition During Dry Reforming of Methane over Ni/γ-Al2O3 (ChemCatChem 8/2025)

Front Cover: Tracking the Mode of Carbon Deposition During Dry Reforming of Methane over Ni/γ-Al2O3 (ChemCatChem 8/2025)

The Front Cover illustrates the dynamics of atomic-scale reactions using both models and real images. The nickel atoms, depicted in purple, represent active centers on the catalyst surface, while the red oxygen, black carbon, and white hydrogen atoms signify the reacting gas molecules. The blue-gray atoms in the background symbolize the alumina support. The real TEM image is in the background: the Octopus carbon formed over large Ni particles due to a favorable methane adsorption over metal, while CO2 is preferentially adsorbed on the support. In their Research Article (DOI: 10.1002/cctc.202401856), D. Uner and co-workers report how they successfully characterized the carbon structures through SS 13C NMR spectroscopy and how intermittent pulses of CO2 inhibited coke formation during steady-state reaction under CO2/CH4 = 1:1. Art by Yaren Uslu.

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来源期刊
ChemCatChem
ChemCatChem 化学-物理化学
CiteScore
8.10
自引率
4.40%
发文量
511
审稿时长
1.3 months
期刊介绍: With an impact factor of 4.495 (2018), ChemCatChem is one of the premier journals in the field of catalysis. The journal provides primary research papers and critical secondary information on heterogeneous, homogeneous and bio- and nanocatalysis. The journal is well placed to strengthen cross-communication within between these communities. Its authors and readers come from academia, the chemical industry, and government laboratories across the world. It is published on behalf of Chemistry Europe, an association of 16 European chemical societies, and is supported by the German Catalysis Society.
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