Suchergebnisse - "Valtchev, Valentin"

Porous nanosized particles: preparation, properties, and applications von Valtchev, Valentin, Tosheva, Lubomira

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Chemically stable polyarylether-based covalent organic frameworks von Guan, Xinyu, Li, Hui, Ma, Yunchao, Xue, Ming, Fang, Qianrong, Yan, Yushan, Valtchev, Valentin, Qiu, Shilun

“… The development of crystalline porous materials with high chemical stability is of paramount importance for their practical application. Here, we report the …”
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Nanosized microporous crystals: emerging applications von Mintova, Svetlana, Jaber, Maguy, Valtchev, Valentin

“… This review highlights recent developments in the synthesis and unconventional applications of nanosized microporous crystals including framework (zeolites) …”
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Three-dimensional Salphen-based Covalent-Organic Frameworks as Catalytic Antioxidants von Yan, Shichen, Guan, Xinyu, Li, Hui, Li, Daohao, Xue, Ming, Yan, Yushan, Valtchev, Valentin, Qiu, Shilun, Fang, Qianrong

“… The development of three-dimensional (3D) functionalized covalent-organic frameworks (COFs) is of critical importance for expanding their potential …”
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Tetrathiafulvalene-based covalent organic frameworks for ultrahigh iodine capture von Chang, Jianhong, Li, Hui, Zhao, Jie, Guan, Xinyu, Li, Cuimei, Yu, Guangtao, Valtchev, Valentin, Yan, Yushan, Qiu, Shilun, Fang, Qianrong

“… To safeguard the development of nuclear energy, practical techniques for capture and storage of radioiodine are of critical importance but remain a significant …”
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Tailored crystalline microporous materials by post-synthesis modification von Valtchev, Valentin, Majano, Gerardo, Mintova, Svetlana, Pérez-Ramírez, Javier

“… Crystalline microporous solids are an important class of inorganic materials with uses in different areas impacting our everyday lives, namely as catalysts, …”
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Hierarchical zeolites von Valtchev, Valentin, Mintova, Svetlana

“… Zeolite molecular sieves are indispensable materials for acid-based catalysis and separation processes. This article overviews zeolite-type microporous …”
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Exfoliated Mesoporous 2D Covalent Organic Frameworks for High‐Rate Electrochemical Double‐Layer Capacitors von Yusran, Yusran, Li, Hui, Guan, Xinyu, Li, Daohao, Tang, Lingxue, Xue, Ming, Zhuang, Zhongbin, Yan, Yushan, Valtchev, Valentin, Qiu, Shilun, Fang, Qianrong

“… The electrochemical double‐layer capacitors (EDLCs) are highly demanded electrical energy storage devices due to their high power density with thousands of …”
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Three-Dimensional Tetrathiafulvalene-Based Covalent Organic Frameworks for Tunable Electrical Conductivity von Li, Hui, Chang, Jianhong, Li, Shanshan, Guan, Xinyu, Li, Daohao, Li, Cuiyan, Tang, Lingxue, Xue, Ming, Yan, Yushan, Valtchev, Valentin, Qiu, Shilun, Fang, Qianrong

“… The functionalization of three-dimensional (3D) covalent organic frameworks (COFs) is essential to broaden their applications. However, the introduction of …”
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Topological Isomerism in Three-Dimensional Covalent Organic Frameworks von Liu, Yaozu, Li, Jingwei, Lv, Jia, Wang, Zitao, Suo, Jinquan, Ren, Junxia, Liu, Jianchuan, Liu, Dong, Wang, Yujie, Valtchev, Valentin, Qiu, Shilun, Zhang, Daliang, Fang, Qianrong

“… Although isomerism is a typical and significant phenomenon in organic chemistry, it is rarely found in covalent organic framework (COF) materials. Herein, for …”
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Three-Dimensional Ionic Covalent Organic Frameworks for Rapid, Reversible and Selective Ion Exchange von Li, Zonglong, Li, Hui, Guan, Xinyu, Tang, Junjie, Yusran, Yusran, Li, Zhan, Xue, Ming, Fang, Qianrong, Yan, Yushan, Valtchev, Valentin, Qiu, Shilun

“… Covalent organic frameworks (COFs) have emerged as functional materials for various potential applications. However, the availability of three-dimensional (3D) …”
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Three‐Dimensional Radical Covalent Organic Frameworks as Highly Efficient and Stable Catalysts for Selective Oxidation of Alcohols von Chen, Fengqian, Guan, Xinyu, Li, Hui, Ding, Jiehua, Zhu, Liangkui, Tang, Bin, Valtchev, Valentin, Yan, Yushan, Qiu, Shilun, Fang, Qianrong

“… With excellent designability, large accessible inner surface, and high chemical stability, covalent organic frameworks (COFs) are promising candidates as …”
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Numerical analysis of the porous structure of spherical activated carbons obtained from ion-exchange resins von Kwiatkowski, Mirosław, He, Ping, Valtchev, Valentin

“… This paper presents the results of an analysis of the porous structure of spherical activated carbons obtained from cation-exchange resin beads subjected to …”
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One-pot synthesis of silanol-free nanosized MFI zeolite von Grand, Julien, Talapaneni, Siddulu Naidu, Vicente, Aurélie, Fernandez, Christian, Dib, Eddy, Aleksandrov, Hristiyan A., Vayssilov, Georgi N., Retoux, Richard, Boullay, Philippe, Gilson, Jean-Pierre, Valtchev, Valentin, Mintova, Svetlana

“… The synthesis of nanostructured zeolites enables modification of catalytically relevant properties such as effective surface area and diffusion path length …”
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Three-dimensional covalent organic frameworks with nia nets for efficient separation of benzene/cyclohexane mixtures von Chang, Jianhong, Chen, Fengqian, Li, Hui, Suo, Jinquan, Zheng, Haorui, Zhang, Jie, Wang, Zitao, Zhu, Liangkui, Valtchev, Valentin, Qiu, Shilun, Fang, Qianrong

“… The synthesis of three-dimensional covalent organic frameworks with highly connected building blocks presents a significant challenge. In this study, we report …”
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Impact of external surface passivation of nano-ZSM-5 zeolites in the methanol-to-olefins reaction von Losch, Pit, Boltz, Marilyne, Bernardon, Claire, Louis, Benoît, Palčić, Ana, Valtchev, Valentin

“… [Display omitted] •Complete passivation of ZSM-5 zeolites external surface through silylation.•High selectivity toward light olefins obtained over silylated …”
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The Mosaic Structure of Zeolite Crystals von Qin, Zhengxing, Melinte, Georgian, Gilson, Jean-Pierre, Jaber, Maguy, Bozhilov, Krassimir, Boullay, Philippe, Mintova, Svetlana, Ersen, Ovidiu, Valtchev, Valentin

“… Zeolites are widely used in many commercial processes, mostly as catalysts or adsorbents. Understanding their intimate structure at the nanoscale is the key to …”
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Defect Sites in Zeolites: Origin and Healing von Palčić, Ana, Moldovan, Simona, El Siblani, Hussein, Vicente, Aurelie, Valtchev, Valentin

“… This paper deals with the synthesis conditions–defect formation relationship in zeolites. Silicalite‐1 (MFI‐type) is used as a model material. Samples …”
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3D Hydrazone‐Functionalized Covalent Organic Frameworks as pH‐Triggered Rotary Switches von Zhao, Wenjuan, Yu, Chengyang, Zhao, Jie, Chen, Fengqian, Guan, Xinyu, Li, Hui, Tang, Bin, Yu, Guangtao, Valtchev, Valentin, Yan, Yushan, Qiu, Shilun, Fang, Qianrong

“… The property expansion of 3D functionalized covalent organic frameworks (COFs) is important for developing their potential applications. Herein, the first case …”
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The preparation of hierarchical SAPO-34 crystals via post-synthesis fluoride etching von Chen, Xiaoxin, Vicente, Aurélie, Qin, Zhengxing, Ruaux, Valérie, Gilson, Jean-Pierre, Valtchev, Valentin

“… SAPO-34 crystals are etched in fluoride medium. The interface between crystalline domains is dissolved and yields a hierarchical material with a system of …”
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