Junliang Sun

Peking University

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Papers

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i-10 index

Research Trends

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Document Type

Co-Authors

Xiaodong Zou

Stockholm University

115

Jianhua Lin

State Key Laboratory of Rare Earth Materials Chemistry and Application

Guobao Li

Southern University of Science and Technology

Fuhui Liao

Beijing National Laboratory for Molecular Sciences

Jian Li

Chongqing University

Sihai Yang⧫

University of Manchester

Hong Chen

Southern University of Science and Technology

Zhengyang Zhou

Shanghai Institute of Ceramics

Qi‐Yu Zheng

Chinese University of Hong Kong

Armando Córdova

Mid Sweden University

Cooperative Institutions

Chinese Academy of Sciences

429

Peking University

339

Institute of Electrical and Electronics Engineers

298

Beijing National Laboratory for Molecular Sciences

225

University of Chinese Academy of Sciences

205

Antea Group (France)

204

Engineering Systems (United States)

151

University of Memphis

149

Stockholm University

126

Sun Yat-sen University

107

Author Statistics

Papers

Citation

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A Crystalline Mesoporous Germanate with 48‐Ring Channels for CO₂ Separation

Angewandte Chemie International Edition (2015)

Jie Liang Jie Su Xiaodan Luo Yingxia Wang Haoquan Zheng

Abstract One of the challenges in materials science has been to prepare crystalline inorganic compounds with mesopores. Although several design strategies have been developed to address the challenge, expansion of pore sizes in inorganic materials is more difficult compared to that for metal–organic frameworks. Herein, we designed a novel mesoporous germanate PKU‐17 with 3D 48×16×16‐ring channels by introducing two large building units (Ge 10 and Ge 7 clusters) into the same framework. The key for this design strategy is the selection of 2‐propanolamine (MIPA), which serves as the terminal species to promote the crystallization of Ge 7 clusters. Moreover, it is responsible for the coexistence of Ge 10 and Ge 7 clusters. To our knowledge, the discovery of PKU‐17 sets a new record in pore sizes among germanates. It is also the first germanate that exhibits a good selectivity toward CO 2 over N 2 and CH 4 .

Germanate

10.1002/anie.201501718

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Citations (0)

Structure determination of [3Fe2S] complex with complicated pseudo-merohedric twinning

Zeitschrift für Kristallographie (2012)

Leifeng Liu Mingrun Li Weiming Gao Björn Åkermark Junliang Sun

Abstract A route of solving crystal structures from complicated pseudo-merohedric twinning crystals was described. The structure of a [3Fe2S] complex was solved and refined in the space group of P 42/ n to R 1 factor of 0.1789. Consequently, by deleting one of the two disordered groups in the structure, a space group of Aea 2 for the absolute structure was found. The new absolute structure with four twinning components was refined to R 1 about 0.1171. At the final stage, the disorder was again added to the structure. The structure in space group Aea 2 with both twinning and disorder was refined to R 1 of 0.0722, which implies the special structure feature.

Group structure

10.1524/zkri.2012.1502

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Citations (3)

ChemInform Abstract: Cd_1‐xBi_x (Cd_1+xIn_1‐x)VO₆ (0 ≤ x ≤ 0.14): A New Polar Oxide with Second‐Harmonic Generation.

ChemInform (2010)

Tao Yang Junliang Sun Jeongho Yeon P. Shiv Halasyamani Shiliang Huang

Abstract The title compounds are prepared by solid state reaction of stoichiometric mixtures of CdO, In 2 O 3 , and V 2 O 5 (650 °C for 10 h and 850 °C for 48 h).

Stoichiometry

10.1002/chin.201045003

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ChemInform Abstract: Dynamic One-Pot Three-Component Catalytic Asymmetric Transformation by Combination of Hydrogen-Bond-Donating and Amine Catalysts.

ChemInform (2011)

Shuangzheng Lin Luca Deiana Gui‐Ling Zhao Junliang Sun Armando Córdova

Abstract The reaction of aldehydes, protected α‐cyanoglycinate esters, and enals is catalyzed by a combination of a chiral amine and an oxime derived from cyanoacetate ester as a hydrogen bond donating co‐catalyst.

Component (thermodynamics)

10.1002/chin.201201085

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Citations (0)

CCDC 936104: Experimental Crystal Structure Determination

The Cambridge Structural Database (2013)

A. Ken Inge Shiliang Huang Hong Chen Francisca Moraga Junliang Sun

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/cc10f2xf

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Oxidation of Cholesterol and β-Sitosterol and Prevention by Natural Antioxidants

Journal of Agricultural and Food Chemistry (2009)

Guihua Xu Lei Guan Junliang Sun Zhen‐Yu Chen

Consumption of cholesterol oxidation products (COPs) is a growing health concern, but little is known about the intake of beta-sitosterol oxidation products (SOPs). The present study was performed (i) to compare the oxidative stability of cholesterol with that of beta-sitosterol; (ii) to investigate the oxidative pattern of cholesterol and beta-sitosterol in lard, corn oil, and olive oil; and (iii) to examine the effectiveness of green tea catechins (GTC), alpha-tocopherol, and quercetin in prevention of cholesterol and beta-sitosterol oxidation compared with butylated hydroxytoluene (BHT). Results showed both cholesterol and beta-sitosterol were thermally unstable with 75% of cholesterol and beta-sitosterol being oxidized at 180 degrees C for 2 h. The oxidation behavior of beta-sitosterol was similar to that of cholesterol in terms of oxidative rate and oxidation products. The major COPs produced were 7-ketocholesterol, 7alpha-hydroxycholesterol, 7beta-hydroxycholesterol 5,6alpha-epoxycholesterol, and 5,6beta-epoxycholesterol, whereas the major SOPs were 7-ketositosterol, 7alpha-hydroxysitosterol, 7beta-hydroxysitosterol, 5,6alpha-epoxysitosterol, and 5,6beta-epoxysitosterol. Under the same experimental conditions, both cholesterol and beta-sitosterol were oxidized more slowly in corn oil, lard, and olive oil, attributable to the unsaponified antioxidants present in these fat and oils. GTC, alpha-tocopherol, and quercetin were more effective than BHT in preventing the oxidation of cholesterol and beta-sitosterol.

10.1021/jf902552s

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Citations (53)

PKU‐21: A Novel Layered Germanate Built from Ge₇ and Ge₁₀ Clusters for CO₂ Separation

Chemistry - A European Journal (2017)

Jie Liang Jie Su Fei Peng Yong‐Fei Zeng Junliang Sun

Abstract The attractive properties of layered inorganic materials, which make them suitable for numerous applications in chemical industries and life sciences, originated from their crystalline framework structures. Here, we report a new layered germanate PKU‐21, which was prepared by the hydrothermal synthesis method using 2‐propanolamine (MIPA) as the structure‐directing agent. The structure of PKU‐21 was determined from synchrotron single‐crystal X‐ray diffraction and synchrotron powder X‐ray diffraction data. It reveals a complicated framework structure containing 18 unique Ge atoms in the asymmetric unit. PKU‐21 is the first layered germanate built from both Ge 7 and Ge 10 clusters, following the 3‐dimensional germanate PKU‐17. The preparation and structure of PKU‐21 are discussed in comparison with PKU‐17, which provides new insight into the formation mechanism of germanates. Gas sorption experiments indicate that the layered PKU‐21 sample exhibits a better CO 2 sorption selectivity over N 2 and CH 4 at 298 K than at 273 K, making it a promising candidate for CO 2 separation.

Germanate

10.1002/chem.201704573

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Citations (0)

CCDC 1487469: Experimental Crystal Structure Determination

The Cambridge Structural Database (2016)

Ning Ma Cong Lin Nian Wu Qi Liu Jiale Ma

10.5517/ccdc.csd.cc1lxtw6

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Citations (0)

Molybdenum Oxide Nanosheets with Tunable Plasmonic Resonance: Aqueous Exfoliation Synthesis and Charge Storage Applications

Advanced Functional Materials (2018)

Ahmed S. Etman Ligang Wang Kristina Edström Leif Nyholm Junliang Sun

Abstract Herein, a simple aqueous‐exfoliation strategy is introduced for the fabrication of a series of MoO 3− x nanosheets (where x stands for oxygen vacancies) using two commercial molybdenum oxide precursors, MoO 2 and MoO 3 . The nanosheets offer a localized surface plasmon resonance (LSPR) effect which is dependent on the structure and local environment of the nanosheets. The LSPR can be efficiently tuned by changing the weight ratio between the molybdenum oxide precursor(s) and/or by solar light irradiation using a low‐energy UV lamp (36 W). For the pristine MoO 3− x nanosheets, the highest LSPR signal is obtained for nanosheets prepared using 80% MoO 2 . On the contrary, after solar light irradiation, the nanosheets prepared using pure MoO 3 offer the highest LSPR response. The nanosheets also show an outstanding rate capability when used as binder‐free supercapacitor electrodes in an acidified Na 2 SO 4 electrolyte. The electrodes exhibit discharge capacities of 110 and 75 C g −1 at a scan rate of 20 and 1000 mV s −1 , respectively. The MoO 3− x nanosheets can likewise be used as a negative electrode material for lithium‐ion batteries. The efficient eco‐friendly synthesis and the ability to tune the photochemical and electrochemical properties of the nanosheets make this approach interesting to many energy‐related research fields.

Exfoliation joint

Molybdenum disulfide

10.1002/adfm.201806699

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Citations (56)

Topologically guided tuning of Zr-MOF pore structures for highly selective separation of C6 alkane isomers

Nature Communications (2018)

Hao Wang Xinglong Dong Junzhong Lin Simon J. Teat Stephanie Jensen

Abstract As an alternative technology to energy intensive distillations, adsorptive separation by porous solids offers lower energy cost and higher efficiency. Herein we report a topology-directed design and synthesis of a series of Zr-based metal-organic frameworks with optimized pore structure for efficient separation of C6 alkane isomers, a critical step in the petroleum refining process to produce gasoline with high octane rating. Zr 6 O 4 (OH) 4 (bptc) 3 adsorbs a large amount of n -hexane but excluding branched isomers. The n -hexane uptake is ~70% higher than that of a benchmark adsorbent, zeolite-5A. A derivative structure, Zr 6 O 4 (OH) 8 (H 2 O) 4 (abtc) 2 , is capable of discriminating all three C6 isomers and yielding a high separation factor for 3-methylpentane over 2,3-dimethylbutane. This property is critical for producing gasoline with further improved quality. Multicomponent breakthrough experiments provide a quantitative measure of the capability of these materials for separation of C6 alkane isomers. A detailed structural analysis reveals the unique topology, connectivity and relationship of these compounds.

Alkane

Hexane

Octane rating

Structural isomer

Separation process

Refining (metallurgy)

10.1038/s41467-018-04152-5

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Citations (323)