Jin Zhang

Nanjing Tech University

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Xiao−Ming Ren

Nanjing Tech University

Hong‐Bin Luo

Nanjing Tech University

Yang Zou

Nanjing Tech University

Ya-Ru Kong

Nanjing Tech University

Qiu Ren

University of California, Santa Cruz

Yangyang Liu

California State University Los Angeles

Yin Qian

Nanjing Tech University

Lifeng Wang

University of Science and Technology of China

Lu Zhai

Nanjing Tech University

Wan‐Wan Yao

Lanzhou University

Cooperative Institutions

Nanjing Tech University

Chinese Academy of Sciences

University of Chinese Academy of Sciences

Nanjing University

Institute of Physics

Institute of High Energy Physics

Charles University

Dalian Institute of Chemical Physics

University of Science and Technology of China

Czech Academy of Sciences, J. Heyrovský Institute of Physical Chemistry

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Multi-step structural phase transitions with novel symmetry breaking and inverse symmetry breaking characteristics in a [Ag₄I₆]²⁻ cluster hybrid crystal

Chemical Communications (2019)

Jin Zhang Wan‐Wan Yao Lei Sang Xue‐Wei Pan Xiaozu Wang

In this study, a multi-step phase transition hybrid composed of (Pr-dabco)2Ag4I6 clusters (Pr-dabco+ = 1-propyl-1,4-diazabicyclo[2.2.2]octan-1-ium) has been prepared and characterized by microanalysis, IR and UV-vis spectroscopy, TG and DSC techniques, etc. This hybrid is thermally stable up to ∼486 K with five phases in the temperature region below 486 K. The phase transition shows symmetry breaking (SB) character between phases II (space group P21/c) and III (space group Pa3[combining macron]), while inverse symmetry breaking (ISB) between phases II and I (space group Pbca), and it is rather exceptional for matter to exhibit simultaneously SB and ISB nature in two successive phase transitions. Most importantly, each phase transition is associated with a dielectric anomaly, and phase V appears to be a plastic crystal with extra high ac conductivity (>10-2 S cm-1). Our work opens up new avenues to find a multi-phase transition material in silver halide hybrids.

DABCO

Crystal (programming language)

Space group

10.1039/c9cc08394d

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Citations (22)

Solid-State Nmr Study on Dealumination Mechanism of H-Mor Zeolite by High-Temperature Hydrothermal Treatment

Bai Xiu Jin Zhang Chong Liu Shutao Xu Yingxu Wei

The acidity of zeolites which plays an important role in various catalytic reactions is closely related to framework aluminum. After dealumination, not only the Si/Al ratio of zeolites increases, but also new aluminum species are generated. Furthermore, the pore structure and catalytic performance of zeolites are affected. High-temperature hydrothermal treatment, as a frequently-used method of dealumination, is widely concerned. However, the dealumination mechanism of zeolite during the hydrothermal treatment is not clear. In this work, the existence of different Al species in H-MOR during the process of high-temperature hydrothermal treatment was confirmed by 27Al MQ MAS NMR. It was found that the second tetrahedrally coordinated framework aluminum (Al(IV)-2) species is the precursor of amorphous non-framework aluminum transformed from framework aluminum of H-MOR during high-temperature hydrothermal treatment. Besides, the 1H-1H DQ-SQ NMR was used to study spatial proximity between different hydroxyl species. Finally, the dealumination process of H-MOR zeolite is revealed: Al(IV)-1 species firstly transformed into Al(IV)-2 species, and then evolved into pentahedrally coordinated aluminum (Al(V)) species and hexahedrally coordinated aluminum (Al(VI)) species.

10.2139/ssrn.4360607

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Citations (1)

An open-framework manganese(ii) phosphite and its composite membranes with polyvinylidene fluoride exhibiting intrinsic water-assisted proton conductance

Dalton Transactions (2017)

Mei Wang Hong‐Bin Luo Jin Zhang Shao-Xian Liu Chen Xue

An open-framework manganese(ii) phosphite shows intrinsic water-assisted proton conductance; homogenous composite membranes have been fabricated, and the water-assisted proton conductivities have been studied.

Polyvinylidene fluoride

10.1039/c7dt01418j

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Citations (24)

High Proton Conductivity Achieved by Encapsulation of Imidazole Molecules into Proton-Conducting MOF-808

ACS Applied Materials & Interfaces (2019)

Hong‐Bin Luo Qiu Ren Peng Wang Jin Zhang Lifeng Wang

Metal-organic frameworks (MOFs), as newly emerging materials, show compelling intrinsic structural features, e.g., the highly crystalline nature and designable and tunable porosity, as well as tailorable functionality, rendering them suitable for proton-conducting materials. The proton conduction of MOF is significantly improved using the postsynthesis or encapsulation strategy. In this work, the MOF-based proton-conducting material Im@MOF-808 has been prepared by incorporating the imidazole molecules into the pores of proton-conducting MOF-808. Compared with MOF-808, Im@MOF-808 not only possesses higher proton conductivity of 3.45 × 10-2 S cm-1 at 338 K and 99% RH, superior to that of any imidazole-encapsulated proton-conducting materials reported to date, but also good durable and stable proton conduction. Moreover, the thermal stability of H-bond networks is much improved owing to the water molecules partially replaced by higher boiling point imidazole molecules. Additionally, it is further discussed for the possible mechanism of imidazole encapsulation into the pores of MOF-808 to enhance proton conduction.

Imidazole

Proton Transport

Encapsulation

10.1021/acsami.9b01075

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Citations (194)

High quantum yield pure blue emission and fast proton conduction from an indium–metal–organic framework

Dalton Transactions (2019)

Lu Zhai Jing-Wei Yu Jin Zhang Wenwei Zhang Lifeng Wang

A 3D anionic In³⁺–MOF integrates the multifunctionality of pure blue luminescence with a high quantum yield of 61.4% and water-mediated fast proton conduction with σ = 2.90–9.22 × 10⁻³ S cm⁻¹ at 25–60 °C and 99% RH.

Quantum yield

10.1039/c9dt02472g

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Citations (20)

Insight into understanding magnetic transition quite sensitive to nonmagnetic impurity in a one-dimensional S = ½ regular linear chain system

Inorganic Chemistry Frontiers (2022)

Dong-Sheng Shao Wan‐Wan Yao Jin Zhang Yin Qian Xiao−Ming Ren

Herein, we demonstrate that the antiferromagnetic couplings in a [Ni(mnt) 2 ] − stack are realized mainly through spatial dipole–dipole type interactions.

Chain (unit)

10.1039/d2qi00809b

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Citations (3)

Seeded growth of isomorphously substituted chabazites in proton-form

Microporous and Mesoporous Materials (2019)

Qiudi Yue Jin Zhang Mariya Shamzhy Maksym Opanasenko

Heteroatom

10.1016/j.micromeso.2019.02.017

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Citations (9)

Acidified Naphthalene Diimide Covalent Organic Frameworks with Superior Proton Conduction for Solid-State Proton Batteries

Journal of Materials Chemistry C (2024)

Lin-Lin Wang Xiao-Qin Ni Yajuan Han Jin Zhang Hong‐Bin Luo

Proton batteries are emerging as leading candidates for the next generation of energy storage systems, thanks to their high-power density and the abundant availability of protons. However, the development of...

Diimide

Covalent organic framework

10.1039/d4tc04322g

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Citations (0)

Synthesis and structures of bis(iminophosphorano)methanide chelate complexes with zinc and group 13

Polyhedron (2018)

Jin Zhang Sai Ge Jianguo Zhao Imran Ulhaq Michael J. Ferguson

Bimetallic strip

10.1016/j.poly.2018.11.056

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Citations (8)

Catching a New Zeolite as a Transition Material during Deconstruction

Journal of the American Chemical Society (2023)

Qiudi Yue Gwladys Steciuk Michal Mazur Jin Zhang Oleg V. Petrov

Zeolites are key materials in both basic research and industrial applications. However, their synthesis is neither diverse nor applicable to labile frameworks because classical procedures require harsh hydrothermal conditions, whereas post-synthesis methods are limited to a few suitable parent materials. Remaining frameworks can fail due to amorphization, dissolution, and other decomposition processes. Nevertheless, stopping degradation at intermediate structures could yield new zeolites. Here, by optimizing the design and synthesis parameters of the parent zeolite IWV, we "caught" a new, highly crystalline, and siliceous zeolite during its degradation. IWV seed-assisted crystallization followed by gentle transformation into the water-alcohol system yielded the highly crystalline daughter zeolite IPC-20, whose structure was solved by precession-assisted three-dimensional electron diffraction. Without additional requirements, as in conventional (direct or post-synthesis) strategies, our approach may be applied to any chemically labile material with a staged structure.

Hydrothermal Synthesis

10.1021/jacs.3c00423

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Citations (9)