1
|
Li X, Chai S, Li H. Polyoxometalate-based reticular materials for proton conduction: from rigid frameworks to flexible networks. Dalton Trans 2024; 53:6488-6495. [PMID: 38567513 DOI: 10.1039/d4dt00229f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Proton conductors play a crucial role in energy and electronic technologies, thus attracting extensive research interest. Recently, reticular chemistry has propelled the development of reticular materials with framework or network structures, which can offer tunable proton transport pathways to achieve optimal conducting performance. Polyoxometalates (POMs), as a class of highly proton-conducting units, have been integrated into these reticular materials using various linkers. This leads to the creation of hybrid proton conductors with structures varying from rigid crystalline frameworks to flexible networks, showing adjustable proton transport behaviors and mechanical properties. This Frontier article highlights the advancements in POM-based reticular materials for proton conduction and provides insights for designing advanced proton conductors for practical applications.
Collapse
Affiliation(s)
- Xiang Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Shengchao Chai
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| | - Haolong Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.
| |
Collapse
|
2
|
Ma X, Zhang L, Liu R, Li X, Yan H, Zhao X, Yang Y, Zhu H, Kong X, Yin J, Zhou H, Li X, Kong L, Hao H, Zhong D, Dai F. A Multifunctional Co-Based Metal-Organic Framework as a Platform for Proton Conduction and Ni trophenols Reduction. Inorg Chem 2023. [PMID: 38015879 DOI: 10.1021/acs.inorgchem.3c03313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The design and development of proton conduction materials for clean energy-related applications is obviously important and highly desired but challenging. An ultrastable cobalt-based metal-organic framework Co-MOF, formulated as [Co2(btzip)2(μ2-OH2)] (namely, LCUH-103, H2btzip = 4, 6-bis(triazol-1-yl)-isophthalic acid) had been successfully synthesized via the hydrothermal method. LCUH-103 exhibits a three-dimensional framework and a one-dimensional microporous channel structure with scu topology based on the binuclear metallic cluster {Co2}. LCUH-103 indicated excellent chemical and thermal stability; peculiarly, it can retain its entire framework in acid and alkali solutions with different pH values for 24 h. The excellent stability is a prerequisite for studying its proton conductivity, and its proton conductivity σ can reach up to 1.25 × 10-3 S·cm-1 at 80 °C and 100% relative humidity (RH). In order to enhance its proton conductivity, the proton-conducting material Im@LCUH-103 had been prepared by encapsulating imidazole molecules into the channels of LCUH-103. Im@LCUH-103 indicated an excellent proton conductivity of 3.18 × 10-2 S·cm-1 at 80 °C and 100% RH, which is 1 order of magnitude higher than that of original LCUH-103. The proton conduction mechanism was systematically studied by various detection means and theoretical calculations. Meanwhile, LCUH-103 is also an excellent carrier for palladium nanoparticles (Pd NPs) via a wetness impregnation strategy, and the nitrophenols (4/3/2-NP) reduction in aqueous solution by Pd@LCUH-103 indicated an outstanding conversion efficiency, high rate constant (k), and exceptional cycling stability. Specifically, the k value of 4-NP reduction by Pd@LCUH-103 is superior to many other reported catalysts, and its k value is as high as 1.34 min-1 and the cycling stability can reach up to 6 cycles. Notably, its turnover frequency (TOF) value is nearly 196.88 times more than that of Pd/C (wt 5%) in the reaction, indicating its excellent stability and catalytic activity.
Collapse
Affiliation(s)
- Xiaoxue Ma
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Lu Zhang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Ronghua Liu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Xin Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Hui Yan
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Xin Zhao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Yikai Yang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Hongjie Zhu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Xiangjin Kong
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Jie Yin
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Huawei Zhou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Xia Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Lingqian Kong
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Hongguo Hao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, School of Pharmacy, and Dongchang College, Liaocheng University, Liaocheng252059, China
| | - Dichang Zhong
- Institute for New Energy Materials and Low Carbon Technologies School of Materials Science and EngineeringTianjin University of TechnologyTianjin300384, China
| | - Fangna Dai
- College of Science, School of Materials Science and Engineering, China University of Petroleum (East China), Qingdao, Shandong266580, China
| |
Collapse
|
3
|
Zhang KM, Ji MF, Zhou XY, Xuan F, Duan BY, Yuan Y, Liu GX, Duan HB, Zhao HR. The proton conduction behavior of two 1D open-framework metal phosphates with similar crystal structures and different hydrogen bond networks. RSC Adv 2023; 13:12703-12711. [PMID: 37197361 PMCID: PMC10183717 DOI: 10.1039/d3ra01130e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 03/20/2023] [Indexed: 05/19/2023] Open
Abstract
Two open-framework zinc phosphates [C3N2H12][Zn(HPO4)2] (1) and [C6N4H22]0.5[Zn(HPO4)2] (2) were synthesized via hydrothermal reaction and characterized by powder X-ray diffraction, thermogravimetric analysis and scanning electron microscopy. Both compounds have a similar crystal structure and macroscopic morphology. However, the difference in equilibrium cations, in which the propylene diamine is for 1 and the triethylenetetramine is for 2, results in a significant distinction in the dense hydrogen grid. The diprotonated propylene diamine molecule in 1 is more favorable for forming a hydrogen-bond network in three dimensions than in 2, in which the twisted triethylenetetramine forms a hydrogen bond grid with the inorganic framework only in two dimensions owing to its large steric effect. This distinction further leads to a disparity in the proton conductivity of both compounds. The proton conductivity of 1 can reach 1.00 × 10-3 S cm-1 under ambient conditions (303 K and 75% RH) and then increase to 1.11 × 10-2 S cm-1 at 333 K and 99% RH, which is the highest value among the open-framework metal phosphate proton conductors operated in the same conduction. In contrast, the proton conductivity of 2 is four orders of magnitude smaller than 1 at 303 K and 75% RH and two orders smaller than 1 at 333 K and 99% RH.
Collapse
Affiliation(s)
- Kai-Ming Zhang
- Department of Material Science and Engineering, Nanjing Institute of Technology Nanjing 211167 P. R. China
- Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology 1 Hongjing Road Nanjing 211167 P. R. China
| | - Min-Fang Ji
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 210009 P. R +86 25 13914700426
| | - Xue-Yi Zhou
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 210009 P. R +86 25 13914700426
| | - Fang Xuan
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 210009 P. R +86 25 13914700426
| | - Bo-Yuan Duan
- Department of Material Science and Engineering, Nanjing Institute of Technology Nanjing 211167 P. R. China
| | - Yuan Yuan
- Department of Material Science and Engineering, Nanjing Institute of Technology Nanjing 211167 P. R. China
| | - Guang-Xiang Liu
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 210009 P. R +86 25 13914700426
| | - Hai-Bao Duan
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 210009 P. R +86 25 13914700426
| | - Hai-Rong Zhao
- School of Environmental Science, Nanjing Xiaozhuang University Nanjing 210009 P. R +86 25 13914700426
| |
Collapse
|
7
|
Ren HM, Liu YR, Liu BY, Li ZF, Li G. Comparative Studies on the Proton Conductivities of Hafnium-Based Metal-Organic Frameworks and Related Chitosan or Nafion Composite Membranes. Inorg Chem 2022; 61:9564-9579. [PMID: 35700425 DOI: 10.1021/acs.inorgchem.2c00809] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Hafnium (Hf)-based UiO-66 series metal-organic frameworks (MOFs) have been widely studied on gas storage, gas separation, reduction reaction, and other aspects since they were first prepared in 2012, but there are few studies on proton conductivity. In this work, one Hf-based MOF, Hf-UiO-66-fum showing UiO-66 structure, also known as MOF-801-Hf, was synthesized at room temperature using cheap fumaric acid as the bridging ligand, and then imidazole units were successfully introduced into MOF-801-Hf to obatin a doped product, Im@MOF-801-Hf. Note that both MOF-801-Hf and Im@MOF-801-Hf demonstrate excellent thermal, water, and acid-base stabilities. Expectedly, the maximum proton conductivity (σ) of Im@MOF-801-Hf (1.46 × 10-2 S·cm-1) is nearly 4 times greater than that of MOF-801-Hf (3.98 × 10-3 S·cm-1) under 100 °C and 98% relative humidity (RH). To explore their possible practical application value, we doped them into chitosan (CS) or Nafion membranes as fillers, namely, CS/MOF-801-Hf-X, CS/Im@MOF-801-Hf-Y, and Nafion/MOF-801-Hf-Z (X, Y, and Z are the doping percentages of MOF in the membrane, respectively). Intriguingly, it was found that CS/MOF-801-Hf-6 and CS/Im@MOF-801-Hf-4 indicated the highest σ values of 1.73 × 10-2 and 2.14 × 10-2 S·cm-1, respectively, under 100 °C and 98% RH and Nafion/MOF-801-Hf-9 also revealed a high σ value of 4.87 × 10-2 S·cm-1 under 80 °C and 98% RH, which showed varying degrees of enhancement compared to the original MOFs or pure CS and Nafion membranes. Our study illustrates that these Hf-based MOFs and related composite membranes offer great potential in electrochemical fields.
Collapse
Affiliation(s)
- Hui-Min Ren
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Ya-Ru Liu
- School of Science, North University of China, Taiyuan 030051, Shanxi, P. R. China
| | - Bo-Yang Liu
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Zi-Feng Li
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| | - Gang Li
- College of Chemistry and Green Catalysis Centre, Zhengzhou University, Zhengzhou 450001, Henan, P. R. China
| |
Collapse
|