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Two birds with one stone:Functionalized wood composites for efficient photocatalytic hydrogen production and solar water evaporation

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Chinese Chemical Letters 2024年第9期35卷 392-397页

作者： Deqi Fan yicheng Tang Yemei liao Yan Mi yi Lu Xiaofei Yang College of Chemical Engineering Nanjing Forestry UniversityNanjing 210037China Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of ScienceNanjing Forestry UniversityNanjing 210037China Key Laboratory of Chemistry and Engineering of Forest Products State Ethnic Affairs CommissionGuangxi Key Laboratory of Chemistry and Engineering of Forest ProductsGuangxi Minzu UniversityNanning 530006China

Maximizing solar energy utilization is a persistent challenge in photo catalysis,which determines sustainable solar-driven photocatalytic *** thermal-coupled photo catalysis is considered as a promising solution to tackle the issues of sustainable energy scarcity and environmental pollution by harvesting the full-spectrum solar ***,a highly efficient photo thermal-accelerated photo catalysis system is elaborately established,in which the assembled carbonized stick/Nb_(2)C MXene evaporator can heat water into vapor and the integrated g-C_(3)N_(4)photocatalyst further enables high-efficiency photocatalytic hydrogen *** designed hyperboloid wood-based architecture possesses a multiphase interface of water steam/catalyst/hydrogen to reduce the transport resistance of hydrogen gas in liquid and ultimately maximize the output of hydrogen ***,this coupled photothermal-photocatalytic system achieves a stable solar evaporation rate of 2.16 kg m^(-1)h^(-1)under one sun irradiation and highly efficient hydrogen-evolving rate of 3096μmol g^(-1)h^(-1).This work paves a way to explore the improvement of photocatalytic hydrogen production by synergic photothermal effect for potential applications in renewable solar energy utilization and hydrogen production.

关键词： Photocatalysis Photothermal Nb_(2)C MXene g-C_(3)N_(4) Wood

Copper-coated Porous Polyimide as Ultralight and Safe Current Collectors for Advanced LIBs

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Chinese Journal of Polymer Science 2024年第4期42卷 521-531页

作者： Cun-Sheng Liu Jun-Qi Hu Ting-Ting Mao Song-yi liao Ru-Ming Feng yi-Dong Liu Yong-Gang Min School of Materials and Energy Guangdong University of TechnologyGuangzhou510006China College of Chemistry and Chemical Engineering Zhongkai University of Agriculture and EngineeringGuangzhou510225China Shanwei Branch of Advanced Energy Science and Technology Guangdong Laboratory Shanwei516600China

Metallic copper is widely used as current collector(CC) for graphite anode of lithium-ion batteries(LIBs) due to its high electrical conductivity and electrochemical stability. However, the large volume density of commercial copper foil(~8.9 g·cm^(-3)) limits the increase of energy density of battery. Here, copper-coated porous polyimide(Cu@PPI) was prepared by vacuum evaporation as collector for the graphite anode. The sandwich structure connects the copper metal on both sides of the collector with excellent electrical conductivity. Compared to commercial Cu foil, Cu@PPI has lighter mass(≤3.9 mg for disc of 12 mm diameter versus 9.9 mg of ~10 μm Cu foil) and lower volume density(≤3.3 g·cm^(-3)). In addition, the porous structure allows of better adhesion of reactive substances and electrochemical properties than pure Cu foils. It is estimated that the energy density of Cu@PPI should be much higher than that of Cu foil. This strategy should be applicable for other current collectors.

关键词： Copper-coated Vacuum evaporation Porous polyimide(PPI) Current collector(CC) LIBs

Toward High Performance Ambipolar Transport from Super-exchange Perspective:Theoretical Insights for IID-based Copolymers

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Chinese Journal of Polymer Science 2022年第4期40卷 355-364页

作者： Wei-Na Zhang Xiao-Qian Wu Guo Wang Yu-Ai Duan Hua Geng yi liao Department of Chemistry Beijing Advanced Innovation Center for Imaging Theory and TechnologyCapital Normal UniversityBeijing 100048China

High-performance ambipolar charge transport materials can reduce the manufacturing cost of OFET and OPV devices,and simplify circuit design and device *** order to obtain ambipolar donor-acceptor(D-A)polymer,many efforts have been made through different donor and acceptor combination,halogenation or heteroatom ***,the influencing factor for charge transport polarity is still much *** on intra-chain super-exchange mechanism for D-A polymer,we found that the energy alignment of donor and acceptor moiety has large impact on charge transport *** the HOMO-LUMO(H-L)gap of the acceptor moiety is narrow,its HOMO/LUMO energy level both lie between the HOMO and LUMO of the donor moiety(sandwich-type energy alignment),and the corresponding D-A copolymers will be more likely ambipolar *** thus,take a narrow H-L gap thiazoleisoindigo(TzIID)acceptor as an example,we demonstrated that a series of TzIID based copolymers combined with wide H-L gap donor moieties can reveal ambipolar *** further predict several high performance ambipolar D-A copolymers(TzIID-TT etc.)with balanced electron and hole transport,whose effective mass(m_(e)^(*)=0.146 and m_(h)^(*)=0.128)is one of the smallest effective masses among ambipolar materials.

关键词： D-A copolymer Ambipolar Super-exchange mechanism Charge transport

Effect of Positive Workplace Gossip on Employee Silence: Psychological Safety as Mediator and Promotion-Focused as Moderator

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International Journal of Mental Health Promotion 2022年第2期24卷 237-249页

作者： Ganli liao Qianqiu Wang yi Li School of Economics and Management Beijing Information Science and Technology UniversityBeijing100092China Development and Planning Department Capital Normal UniversityBeijing100044China

The development of electronic information technology has made workplace gossip more *** a part of interpersonal communication on informal occasions,positive workplace gossip affects individuals’mood,cogni-tion,and *** light of this and based on the Social Interdependence Theory,the study proposed that positive workplace gossip has a negative effect on employee silence,and psychological safety mediates this *** addition,the promotion-focused moderates the relationship between psychological safety and employee *** on a two-wave sampling design from 311 innovative enterprises employees,the results of Structural Equation Model by AMOS 22.0 and Mplus 7.0 supported all the *** revealed that positive workplace gossip can decrease the employee silence through the mediating role of psychological safety and moderating role of ***ﬁndings provided theoretical implications and practical sugges-tions for enterprise managers to create positive communication climate to reduce employee silence.

关键词： Positive workplace gossip employee silence psychological safety promotion-focused

Lymphoepithelioma-like cholangiocarcinoma:A mimic of hepatocellular carcinoma on imaging features

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World Journal of Gastroenterology 2015年第13期21卷 4089-4095页

作者： Tsan-Chieh liao Chien-An Liu Nai-Chi Chiu yi-Chen Yeh yi-You Chiou Department of Radiology Taipei Veterans General Hospital National Yang-Ming University School of Medicine Department of Pathology Taipei Veterans General Hospital

Primary lymphoepithelioma-like carcinoma in the liver is extremely rare. A few cases of lymphoepithelioma-like cholangiocarcinoma have been reported, but few radiologic features were described. We reviewed 23 cases of lymphoepithelioma-like cholangiocarcinoma reported between 1996 and 2014 and describe a rare case of a 35-year-old woman in our hospital who was diagnosed with lymphoepithelioma-like cholangiocarcinoma of the liver and was a hepatitis B carrier. The tumor(1.6 cm) in our patient appeared to be hypoechoic in sonographic images and hypodense in computed tomography(CT) images. In addition, it was homogeneous hypointense in T1-weighted magnetic resonance(MR) images(MRI) and hyperintense in T2-weighted MRI. Dynamic gadolinium-enhanced MRI showed typical image pattern of hepatocellular carcinoma(HCC). The patient underwent a laparoscopic left hepatic lobectomy, and the resected tumor consisted of well-differentiated glandular cells with extensive lymphocytic infiltration that were immunoreactive to CK(AE1/AE3), CD3, and CD20. In addition, the tumor was positive for Epstein-Barr virus-encoded RNA in situ hybridization. Finally, lymphoepithelioma-like cholangiocarcinoma was diagnosed. In previous studies, the incidence is highest among middle-aged people. Most tumors appeared to be hypodense with either hypovascular or hypervascular patterns in CT images. This case report is the first study to address sonography, CT, and MRI observations and delineate pathologic correlations. We suggest that the imaging pattern of lymphoepithelioma-like cholangiocarcinoma, either the typical cholangiocarcinoma pattern or a mimic of HCC, should be considered in the differential lists for HCC.

关键词： Epstein-Barr virus Hepatocellular carcinoma Lympho

Ripening behavior of M_(23)C_6 carbides in P92 steel during aging at 800°C

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Journal of Iron and Steel Research International 2017年第8期24卷 858-864页

作者： Xu Yang Bo liao Fu-ren Xiao Wei Yan yi-yin Shan Ke Yang College of Materials Science and Engineering Yanshan University Institute of Metal Research Chinese Academy of Sciences

The rapid coarsening of the M_（23）C_6 carbides has been held responsible for the creep fracture in 9-12Cr martensitic heat resistant steels.A commercial P92 steel was subjected to thermal aging at a high temperature of 800°C to investigate the ripening behavior of the M_（23）C_6 *** electron microscopy（SEM）and transmission electron microscopy（TEM）were employed to characterize the microstructure evolution,especially the ripening process of the M_（23）C_6 *** new concept of the effective mean size,dependent on the critical radius,was introduced to correct the measured mean size and then the Ostwald theory was applied to describe the ripening behavior of the M_（23）C_6 *** ripening of the M_（23）C_6 carbides was revealed to be grain boundary diffusion controlled.

关键词： P92steel M23C6 carbide Aging Ripening

Thickness-dependent Orientation Structure in Poly(ethylene oxide) Multi-layer Crystals

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Chinese Journal of Polymer Science 2014年第9期32卷 1253-1259页

作者： yi-ning He Xiao Liu Qi liao 周建军 Hong Huo Lin Li Beijing Key Laboratory of Energy Transition and Storage Materials College of Chemistry Beijing Normal University Institute of Chemistry Chinese Academy of Sciences

Poly（ethylene oxide） multi-layer crystals were obtained and the re-crystallization behavior was studied to give insight into how melt thickness and temperature affect the lamellar orientation. For a special re-crystallization temperature, there exists a critical transition thickness range for the occurrence of edge-on lamellar orientation. Below the critical thickness, only flat-on lamellae were observed. While above the critical thickness, both flat-on and edge-on lamellae were found and the proportion of the edge-on lamellae increases with thickness. At low re-crystallization temperatures （below 30 ℃）, the critical transition thickness gradually increases from about 15 nm to 35 nm when the re-crystallization temperature was increased from 20 ℃ to 30 ℃. However, when the re-crystallization temperature is above 30 ℃, the critical transition thickness becomes constant. Our results demonstrated that the lamellar orientation could be specially modified by changing the melt thickness and re-crystallization temperature.

关键词： PEO multi-layer crystal Lamellar orientation Re-crystallization temperature.

Resorption of upwardly displaced lumbar disk herniation after nonsurgical treatment: A case report

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World Journal of Clinical Cases 2020年第19期8卷 4609-4614页

作者： yi Wang Shi-Chuan liao Guo-Gang Dai Ling Jiang Cervicodynia/Omalgia/Lumbago/Sciatica Department2 Sichuan Provincial Orthopedics HospitalChengdu 610041Sichuan ProvinceChina College Hospital Sichuan Agricultural University-Chengdu CampusChengdu 611130Sichuan ProvinceChina

BACKGROUND The spontaneous resorption of lumbar disk herniations(LDHs)has been widely ***,the majority of these reports analyze the resorption of LDHs that were displaced backwards or *** have been few reports on the spontaneous resorption of upwardly displaced L4/5 LDH that has caused femoral nerve *** SUMMARY A 55-year-old woman presented to our hospital with acute pain in her left *** had been suffering from recurrent lower back pain for approximately 1 year and began to feel pain accompanied with numbness at the anterior aspect of her left leg 7 d *** examination,a typical L4 nerve stimulation was *** upwardly displaced LDH at the L4/5 level was revealed by magnetic resonance *** patient attained complete relief of her symptoms after 10 wk of nonsurgical treatment and the upwardly displaced herniation almost entirely *** was no recurrence during a follow-up of 2 *** Clinicians should be aware that the nerves disturbed by LDHs vary according to the direction of the herniations and the probable resorption of upwardly displaced LDHs should be considered before making a decision on surgery.

关键词： Lumbar disk herniation Upward displacement Resorption Neurology Rehabilitation Case report

Three-dimensional dynamics of a single bubble rising near a vertical wall:Paths and wakes

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Petroleum Science 2023年第3期20卷 1874-1884页

作者： Hong-jie Yan He-Yang Zhang Hui-Min Zhang yi-Xiang liao Liu Liu School of Energy Science and Engineering Central South UniversityChangsha410083PR China Institute of Fluid Dynamics Hemholtz-zentrum Dresden-RossendorfD-01328DresdenGermany

In order to clarify the migration mechanism and wake behavior of a single bubble rising near a vertical wall,three-dimensional direct numerical simulations are implemented based on the open-source soft-ware Basilisk and various types of migration paths like linear,zigzag and spiral are *** volume of fluid(VOF)method is used to capture the bubble interface at a small scale,while the gas-liquid interface and high-velocity-gradient regions in the flow field are encrypted with the adaptive mesh refinement *** results show that the vertical wall has an obstructive effect on the diffusion of the vortex boundary layer on the surface of the bubble migrating in a straight line,and the resulting reaction force tends to push the bubbles away from the wall *** the zigzag or spiral movement of a bubble in the x-y plane,the perpendicular wall is an unstable factor,but on the contrary,the motion in the z-y plane is stabilized.

关键词： Bubble Wall effect Trajectory Wake structure VOF Basilisk