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Science China Chemistry 2025年

作者： yuan Tian Jiang-Bo Chen Jie Ying Ge Tian yu-Xuan xiao Yi Lu Si-Ming Wu Wei Geng Ling Shen xiao-yu yang State Key Laboratory of Advanced Technology for Materials Synthesis and Processing and School of Materials Science and Engineering and Shenzhen Research Institute & Laoshan Laboratory Wuhan University of Technology School of Chemical Engineering and Technology Sun Yat-Sen University National Energy Key Laboratory for New Hydrogen-Ammonia Energy Technologies Foshan Xianhu Laboratory

Seawater electrolysis is a highly promising method to produce high energy density hydrogen,especially in dry areas that have scarce freshwater ***,application of seawater electrolysis is confronted by two major problems associated with catalysts employed for the anodic oxygen evolution reaction （OER） including the competitive hypochlorite evolution reaction（HCER） and strong chloridion （Cl–） triggered *** studies aimed at overcoming these problems,a facile method has been developed to synthesize a homologous CoS2heterojunction as an OER *** to a difference in work functions at the interface and increased electron density,this material has directed electron transfer and strong chloridion repulsion properties,*** have shown that CoS2achieves low overpotentials of 289 and 322 mV at 10 mA cm-2current density in respective alkaline （1 M KOH） and alkaline simulated seawater ***,the outstanding stability of CoS2is reflected in a negligible decline in activity during promotion of the OER for 100 *** of density functional theory calculations reveal that the homologous CoS2heterojunction promotes directed electron transport for optimizing adsorption/desorption of reactive species and heightens the Cl-adsorption energy for strongly repulsing Cl-,phenomena that enhance OER performance in alkaline simulated seawater.

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Pt–C interactions in carbon-supported Pt-based electrocatalysts

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Frontiers of Chemical Science and Engineering 2023年第11期17卷 1677-1697页

作者： yu-Xuan xiao Jie Ying Hong-Wei Liu xiao-yu yang School of Chemical Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing&Shenzhen Research Institute&Joint Laboratory for Marine Advanced Materials in Pilot National Laboratory for Marine Science and Technology(Qingdao) Wuhan University of TechnologyWuhan 430070China

Carbon-supported Pt-based materials are highly promising *** carbon support plays an important role in the Pt-based catalysts by remarkably influencing the growth,particle size,morphology,dispersion,electronic structure,physiochemical property and function of *** review summarizes recent progress made in the development of carbon-supported Pt-based catalysts,with special emphasis being given to how activity and stability enhancements are related to Pt–C interactions in various carbon supports,including porous carbon,heteroatom doped carbon,carbon-based binary support,and their corresponding electrocatalytic ***,the current challenges and future prospects in the development of carbon-supported Pt-based catalysts are discussed.

关键词： Pt-C interactions Pt-based materials carbon support electrocatalysis

Hydrolysis kinetics of benzyl phenyl ether in high temperature liquid water

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Chinese Chemical Letters 2011年第6期22卷 733-737页

作者： xiao yu Wu Xiu yang Lu Department of Chemical and Biological Engineering Zhejiang University Hangzhou 310027 China

The application of high temperature liquid water（HTLW） to decomposition of lignin as efficient and green solution for phenolic compounds recovery was *** phenyl ether（BPE）,the lignin model compound,was treated at temperatures ranging from 220 to 250℃.BPE undergo hydrolysis in HTLW,and main products were phenol and benzyl alcohol with the minimum selectivities of 75.7%and 82.8%,*** temperature led to higher selectivity in 220-250℃temperature *** kinetics on BPE hydrolysis was studied and the activation energy was determined as 150.3±12.5 kJ/mol with the first-order kinetic *** on products distribution,the reaction mechanism for decomposition of benzyl phenyl ether was *** investigated process provides insights into the design of a commercial method for utilization of lignin.

关键词： Hydrolysis Kinetics Benzyl phenyl ether High temperature liquid water Lignin model compound

Improving flangeability of multiphase steel by increasing microstructural homogeneity

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Journal of Iron and Steel Research International 2024年第7期31卷 1736-1745页

作者： xiao-yu yang Yong-gang yang Xing Fang Han-long Zhang Zhen-li Mi Beijing Advanced Innovation Center for Materials Genome Engineering Institute of Engineering TechnologyUniversity of Science and Technology BeijingBeijing 100083China Shanghai Baosteel Group Corp.Technology Center Shanghai 201900China

Multiphase microstructure significantly increases the strength,usually at the expense of flangeability because of lacking microstructure *** further improve the strength-flangeability of multiphase steel,the microstructural homogeneity was advanced by adjusting the hard martensite/austenite(M/A)*** strength-flangeability was measured via uniaxial tensile tests and hole expansion *** microstructures were characterized using a scanning electron microscope equipped with an electron backscatter diffraction detector and a transmission electron *** tests were supplementally used to quantitatively reveal the microstructural homogeneity of the *** show that the adjusted multiphase steel achieves an excellent ultimate tensile strength(~800 MPa)and flangeability(~135%hole expansion ratio).A promising homogeneous multiphase microstructure was obtained by controlling undercooled austenite transformed at about 600℃.This microstructure consists of soft polygonal ferrite,blocky bainitic ferrite,and hard M/A *** volume fraction of M/A islands is around 5%,and the average size is less than l *** nanoindentation analysis indicated that the participation of M/A islands impressively influenced the microstructural *** strain partition and better mechanical compatibility were present in the adjusted multiphase steel since the plasticity initiation started late,which resulted in a positive ***,avoiding M/A islands distributed in the chain along the rolling direction on the matrix hindered the possibility of voids coalescing into cracks and stabilized the flanging performance.

关键词： Multiphase steel Flangeability Martensite/austenite island-Microstructural homogeneity-Microstructure Compact strip production process

Multiple roles for cholinergic signaling in pancreatic diseases

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World Journal of Gastroenterology 2022年第25期28卷 2910-2919页

作者： Jun-Min yang xiao-yu yang Jian-Hua Wan Department of Gastroenterology The First Affiliated Hospital of Nanchang UniversityNanchang 330006Jiangxi ProvinceChina

Cholinergic nerves are widely distributed throughout the human body and participate in various physiological activities,including sensory,motor,and visceral activities,through cholinergic *** signaling plays an important role in pancreatic exocrine secretion.A large number of studies have found that cholinergic signaling overstimulates pancreatic acinar cells through muscarinic receptors,participates in the onset of pancreatic diseases such as acute pancreatitis and chronic pancreatitis,and can also inhibit the progression of pancreatic ***,cholinergic signaling plays a role in reducing pain and inflammation through nicotinic receptors,but enhances the proliferation and invasion of pancreatic tumor *** review focuses on the progression of cholinergic signaling and pancreatic diseases in recent years and reveals the role of cholinergic signaling in pancreatic diseases.

关键词： Acetylcholine Muscarinic receptors Nicotinic receptors Pancreatic exocrine Pancreatitis Pancreatic cancer

Priapulid worms from the Cambrian of China shed light on reproduction in early animals

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Geoscience Frontiers 2021年第6期12卷 105-113页

作者： xiao-yu yang Jean Vannier Jie yang Deng Wang Xi-guang Zhang Key Laboratory for Paleobiology and MEC International Joint Laboratory for Paleoenvironment Yunnan UniversityKunming 650091China Univ Lyon Univ Lyon 1ENSLCNRSLGL-TPEF-69622 VilleurbanneFrance Shaanxi Key Laboratory of Early Life and Environments State Key Laboratory of Continental DynamicsDepartment of GeologyNorthwest UniversityXi’an 710069China

In the recent years,exceptional fossil sites have revealed astonishing details on the anatomy,lifestyles and behaviour of Cambrian animals but surprisingly,very little is known about one of their most vital features,*** describe here in situ eggs(clusters of 3 to 30 oocytes)in the tube-dwelling priapulid worm Paraselkirkia sinica from the Cambrian Stage 3 xiaoshiba Lagerstätte(ca.514 Ma,South China).These oocytes were accommodated within paired tubular ovaries located in the posterior half of the primary body cavity as in modern meiobenthic priapulid worms,thus indicating that the general organization of female tubular gonads in priapulid worms has remained virtually unchanged for half a billion *** findings provide for the first time,key information on the reproductive organs and strategies of early ecdysozoans,a huge animal clade that dominated Cambrian marine ecosystems and accounts for a large part of today’s biodiversity(***).Moreover,we also emphasize the critical role of ecology on the reproductive strategies and lifestyles of both modern and Cambrian worms.

关键词： Priapulida Reproductive system Palaeoecology Evolution Burgess Shale-type preservation China

Diagnostic value of elevated serum carbohydrate antigen 125 level in sarcoidosis

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World Journal of Clinical Cases 2022年第23期10卷 8141-8151页

作者： Qian Zhang xiao-Yan Jing xiao-yu yang Zuo-Jun Xu Department of Respiratory Medicine Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China

BACKGROUND Sarcoidosis is a multisystem disorder with unknown etiology, and it predominantly affects the lungs and intrathoracic lymph nodes. For patients with atypical clinical manifestations, the diagnosis of sarcoidosis is difficult and specific biomarkers may play an important role in assisting diagnosis. Previous research has demonstrated a correlation between sarcoidosis and increased carbohydrate antigen 125(CA125), but remains a lack of large cohort studies to validate this *** To compare serum CA125 levels in sarcoidosis patients and healthy controls, and explore whether CA125 can be used as a biomarker for the diagnosis of *** In this study, the serum CA125 levels were measured by enzyme-linked immunosorbent assay in 108 consecutive sarcoidosis patients between June 2016 and December 2020(31 males, 77 females;age at diagnosis 49.69 ± 9.10 years) and 112 healthy subjects. Data on the C-reactive protein, erythrocyte sedimentation rate, and angiotensin-converting enzyme were also collected. The association of serum CA125 levels with clinical, radiological, and respiratory functional characteristics was analyzed between patient groups with CA125 ≤ 35 U/mL or CA125 >35 U/*** We found that serum CA125 levels were higher in sarcoidosis patients compared to healthy controls(median: 44.78 vs 19.11 U/mL, P < 0.001). The area under the receiver operator characteristic was 0.9833(95%CI: 0.9717-0.9949), and the best cutoff point was 32.33 U/mL. The elevated serum CA125 was notably associated with the percentage of predicted forced vital capacity(FVC%) and neutrophil-to-lymphocyte ratio(P =0.043 and P = 0.038, respectively) in sarcoidosis patients. Multivariate analysis revealed that FVC%was a statistically notable predictor of elevated serum CA125(P = 0.029). Also, our research revealed that compared to patients with Stage I of radiology classification, patients with Stage Ⅱ and Ⅲ showed a higher concentration of serum CA125(46.16 ± 8

关键词： Sarcoidosis Carbohydrate antigen 125 Diagnosis Radiology Forced vital capacity

Synthesis, Structure and Fluorescent Property of Coordination Polymer from 4-[（8-Hydroxy-5-quinolinyl）azo]-benzoic Acid

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Chemical Research in Chinese Universities 2013年第6期29卷 1045-1049页

作者： LUO Ya-nan XU Xian-zhu ZHANG xiao yu xiao-yang QU xiao-shu yang Yan-yan SHEN Qi-hui State Key Laboratory of Urban Water Resource and Environment Harbin Institute of TechnologyHarbin 150080 P.R.China College of Chemical and Pharmaceutical Engineering Jilin Institute of Chemical TechnologyJilin 132022 P.R.China

One new coordination polymer based on 4-[（8-hydroxy-5-quinolinyl）azo]-benzoic acid（H2L）, { [CdL（H20）]·H2O}n（1） was solvothermally synthesized and structurally characterized by single-crystal X-ray diffrac- tion, infrared spectrometry, elemental analysis, powder X-ray diffraction（PXRD） and thermogravimetric analysis （TGA）. In compound 1, L2- ligands link Cd（II） to form a sinusoidal ruffling layer, in which the carboxylic groups connect Cd（II） into an infinite Cd--O chain. And the layers are further stabilized by hydrogen bonding and π-π in- teractions, forming a three-dimensional（3D） supramolecular network. In addition, the fluorescent property of compound 1 was also investigated.

关键词： Three-dimensional supramolecular network 4-[(8-Hydroxy-5-quinolinyl)azo]-benzoic acid Fluorescent property

Syntheses and Structures of Uwo New Oxalate-bridged Transition-metal Supramolecular Polymers of [M(2-NH_2py)_2(ox)]

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Chemical Research in Chinese Universities 2007年第6期23卷 631-634页

作者： ZHANG xiao YI Zhi-hui XUE Ming XU Yan yu Jie-hui yu xiao-yang XU Ji-qing College of Chemistry State Key Laboratory of Inorganic Synthesis and Preparative Chemistry Jilin University Changchun 130021 P. R. China

Two new supramoleeular polymers [ M （2-NH2 py）2 （ox） ] [ M = Co （1）, Ni （2） ; 2-NH2py = 2-aminopyridine; ox = oxalate ] were hydrothermally synthesized and characterized by elemental analyses, IR and single-crystal X-ray diffraction analyses. The isomorphic compounds 1 and 2 both possess one-dimensional zigzag chain structures, which are composed of [ M （2-NH2 py）2 ]^2＋ units bridged by tetradentate oxalate ligands to form three-dimensional supramolecular network v/a the C-H…O hydrogen bonds and π-π stacking interactions. Compound 1 displays antiferromagnetie interaction.

关键词： Crystal structure Oxalate ligand Coordination polymer Supramolecular interaction

Effects of nano-ceramic additives on high-temperature mechanical properties and corrosion behavior of 310S austenitic stainless steel

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Journal of Iron and Steel Research International 2023年第3期30卷 591-600页

作者： Rong Zhu Mai Wang Zhen-li Mi Qi Zhang xiao-yu yang Yong-gang yang Yan-xin Wu Institute of Engineering Technology University of Science and Technology BeijingBeijing 102206China

A novel approach to reduce Ni content for the 310S austenitic stainless steel was *** nano-ceramic additive(L)was applied to 310S steel to replace part of Ni element and reduce the *** means of thermal simulation,X-ray diffraction,field emission scanning electron microscopy,and electron backscattered diffraction,the effects of nanoceramic additives on high-temperature mechanical properties and corrosion behavior of the 310S steel were *** results indicate that the morphology and density of the(Fe,Cr)_(23)C_(6)carbides are varied,which play an important role in the high-temperature mechanical properties and corrosion *** adding nano-ceramic additives,the high-temperature tensile strength and yield strength are improved simultaneously,in spite of a slight decrease in the total *** high-temperature corrosion process,the mass gain of all the samples is parabolic with *** mass gain is increased in the 310S steel with nano-ceramic additive,while the substrate thickness is significantly larger than 310S *** more stable and adherent FeCr_(2)O_(4)spinel form is the reason why the high-temperature corrosion resistance was ***(Fe,Cr)_(23)C_(6)carbides distribution along grain boundaries is detrimental to the high-temperature corrosion resistance.

关键词： Austenitic stainless steel Nano-ceramic additive High-temperature mechanical property High-temperature corrosion behavior FeCr_(2)O_(4)spinel