Reticular Synthesis of Ultrastable Dynamic Zinc-Pyrazolate Frameworks for Efficient CO2 Photoreduction

IF 7.7

Precision Chemistry Pub Date : 2026-10-26 Epub Date: 2026-06-10 DOI:10.1021/prechem.6c00007

Guojuan Zhi, Mengyang Zhai, Dayang Cheng, Mohammad Wahiduzzaman, Guillaume Maurin, Guozan Yuan, Zhijie Chen

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Abstract

It remains a challenge to develop an ultrastable and single-crystalline photocatalyst with smart structural flexibility for the efficient capture and conversion of carbon dioxide. Herein, we report the reticular synthesis of a single-crystalline pyrazolate-based MOF (Pz-MOF)─Zn-TPP─exhibiting exceptional stability and stimuli-responsive structural dynamics─by the assembly of photosensitizing pyrene-based tetrapyrazolate linkers and zinc ions. Zn-TPP retains its crystallinity and porosity after high-temperature treatment over 400 °C or after immersion in basic aqueous conditions (5 M NaOH). The reversible dynamic behavior of Zn-TPP was unambiguously observed by single-crystal-to-single-crystal transition experiments. Thanks to the integration of photosensitizing pyrene units into this ultrastable and flexible porous platform, Zn-TPP displays efficient CO₂ capture performance and is a reusable efficient photocatalyst for the reduction of CO₂.

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超稳定动态吡甲酸锌骨架的网状合成及其高效光还原CO2的研究

开发一种具有智能结构灵活性的超稳定单晶光催化剂，以实现二氧化碳的高效捕获和转化，仍然是一个挑战。本文报道了一种单晶吡唑酸盐基MOF （Pz-MOF）──Zn-TPP──通过光敏芘基四吡唑酸盐连接剂和锌离子的组装而成，具有优异的稳定性和刺激响应的结构动力学。Zn-TPP经过400°C以上的高温处理或浸泡在碱性水溶液（5 M NaOH）中后，仍能保持其结晶度和孔隙度。通过单晶到单晶的转变实验，明确地观察到锌- tpp的可逆动力学行为。由于将光敏化芘单元集成到这个超稳定和灵活的多孔平台中，zn - tpp显示出高效的二氧化碳捕获性能，并且是一种可重复使用的高效光催化剂，用于减少二氧化碳。

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来源期刊

Precision Chemistry 精密化学技术-

CiteScore

0.80

自引率

0.00%

发文量

期刊介绍： Chemical research focused on precision enables more controllable predictable and accurate outcomes which in turn drive innovation in measurement science sustainable materials information materials personalized medicines energy environmental science and countless other fields requiring chemical insights.Precision Chemistry provides a unique and highly focused publishing venue for fundamental applied and interdisciplinary research aiming to achieve precision calculation design synthesis manipulation measurement and manufacturing. It is committed to bringing together researchers from across the chemical sciences and the related scientific areas to showcase original research and critical reviews of exceptional quality significance and interest to the broad chemistry and scientific community.