Guowei Niu

Lewis Acidic Zn/S-1 Zeolite Enables Direct Dehydrogenative Aromatization of Long-Chain Olefins

Changlin Qi, Qiang Chang, Mengjiao Xing, Ao Yin et autres

Abstract Aromatics, as essential chemical feedstocks, are predominantly derived from nonrenewable petroleum resources. With the rapid advancement of syngas–to–olefins (STO) technology, Fischer–Tropsch (F–T) olefin aromatization has emerged as a promising alternative route for aromatics production. Developing high-performance zeolite catalysts for the aromatization …

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Si3N4 induced Fe-Si interaction in iron-based Fischer-Tropsch synthesis catalysts for suppressing CO2 formation

Li J, Fan Zhang, Peng Zhang, Guowei Niu et autres

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Catalytic Performance of Highly Dispersed Bimetallic Catalysts for CO Hydrogenation to DME

Chunqiu Zhao, Qiang Chang, Yin Fu, Guowei Niu et autres

Abstract Highly dispersed bimetallic atomic‐scale catalysts have garnered significant attention in syngas conversion filed due to the synergistic effects of the precisely structured bimetallic site, which facilitate the effective activation of CO. Despite their potential, synthesizing these catalysts to meet the specific …

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Effect of Ni on the performance of Ni–Zn-NC catalysts for CO hydrogenation to DME

Chunqiu Zhao, Qiang Chang, Yin Fu, Jing Li et autres

20.6%) while both maintaining high DME selectivity (>93%). Structural characterization revealed that Ni atoms existed in a bimetallic coordination environment, which is crucial for the promoting effect of Ni. In contrast, Ni nanoparticles incorporated into Zn-NC (nanoNi-Zn-NC) reduced CO conversion to less …

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Halogenated Thermally Activated Delayed Fluorescence Materials for Efficient Scintillation

Xiao Wang, Guowei Niu, Zixing Zhou, Zhicheng Song et autres

Organic scintillators, materials with the ability to exhibit luminescence when exposed to X-rays, have aroused increasing interest in recent years. However, the enhancement of radioluminescence and improving X-ray absorption of organic scintillators lie in the inherent dilemma, due to the waste of …

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Organic phosphorescent nanoscintillator for low-dose X-ray-induced photodynamic therapy

Xiao Lu Wang, Wenjing Sun, Huifang Shi, Huili Ma et autres

X-ray-induced photodynamic therapy utilizes penetrating X-rays to activate reactive oxygen species in deep tissues for cancer treatment, which combines the advantages of photodynamic therapy and radiotherapy. Conventional therapy usually requires heavy-metal-containing inorganic scintillators and organic photosensitizers to generate singlet oxygen. Here, we …

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Ultralong organic phosphorescence from isolated molecules with repulsive interactions for multifunctional applications

Xiaokang Yao, Huili Ma, Xiao Lu Wang, He Wang et autres

Intermolecular interactions, including attractive and repulsive interactions, play a vital role in manipulating functionalization of the materials from micro to macro dimensions. Despite great success in generation of ultralong organic phosphorescence (UOP) by suppressing non-radiative transitions through attractive interactions recently, there is …

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Modulating the triplet chromophore environment to prolong the emission lifetime of ultralong organic phosphorescence

Guohui Yang, Anqi Lv, Zixuan Xu, Zhicheng Song et autres

We demonstrate that changes in the surrounding environment of the triplet chromophore play a crucial role in changing the organic room-temperature phosphorescence lifetime, with a range from 0.84 ms (ET) to 325.26 ms (MT).

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Amorphous-MoO 3−x /MoS 2 heterostructure: in situ oxidizing amorphization of S-vacancy MoS 2 for enhanced alkaline hydrogen evolution

Wenzhuo Wu, Chunyao Niu, Qingyong Tian, Wei Liu et autres

Amorphous-MoO 3−x /MoS 2 heterostructure prepared by in situ oxidizing amorphization of S-vacancy MoS 2 enables the acceleration of water dissociation and alkaline hydrogen evolution.

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