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Journal of Energy Chemistry 2022年第9期31卷 453-464,I0013页

作者： Mingjie Yi Shunyou Hu Na Li Hao Wang jiaheng zhang State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyShenzhen 518055GuangdongChina Research Centre of Printed Flexible Electronics School of Materials Science and EngineeringHarbin Institute of TechnologyShenzhen 518055GuangdongChina

Vacancy engineering is a useful methodology in the development of catalysts and electrode materials.Herein,we report the introduction of Se-vacancy pairs in heteroatom-doped(N,B,and F)CoSe/Mo_(2)CT_(x) MXene(NBF-CoSe/Mo_(2)CT_(x))to enhance the hydrogen evolution reaction(HER)and supercapacitor activities via an ionic liquid-mediated method.Se vacancy pairs and heteroatom doping enable the reallocation of local electron states and add active sites,improving the electrochemical activity of NBF-CoSe/Mo_(2)CT_(x) with high HER activities over a broad range of pH.At a current density of 10 mA cm^(-2),overvoltages of 70 and 81 mV are respectively produced in 0.5 M H_(2)SO_(4)and 1 M KOH.The optimal structure also exhibits outstanding electrochemical performance in an asymmetric supercapacitor with an energy density of 34.2 Wh kg^(-1)at a power density of 15989.6Wkg^(-1).This study opens new avenues for the introduction of Se vacancies and heteroatom doping to improve the application performance.

关键词： Flexible supercapacitors,Heteroatom-doped CoSe Hydrogen evolution reaction Ionic liquids Selenium vacancy

Safe and Stable Lithium Metal Batteries Enabled by an Amide-Based Electrolyte

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Nano-Micro Letters 2022年第3期14卷 120-133页

作者： Wanbao Wu Yiyang Bo Deping Li Yihong Liang Jichuan zhang Miaomiao Cao Ruitian Guo Zhenye Zhu Lijie Ci Mingyu Li jiaheng zhang Sauvage Laboratory for Smart Materials Harbin Institute of Technology(Shenzhen)Shenzhen 518055People’s Republic of China Research Centre of Printed Flexible Electronics School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055People’s Republic of China School of Materials Science and Engineering Harbin Institute of Technology(Shenzhen)Shenzhen 518055People’s Republic of China Department of Chemistry University of IdahoMoscowID 83844‑2343USA

The formation of lithium dendrites and the safety hazards arising from flammable liquid electrolytes have seriously hindered the development of high-energy-density lithium metal batteries.Herein,an emerging amide-based electrolyte is proposed,containing LiTFSI and butyrolactam in different molar ratios.1,1,2,2-Tetrafluoroethyl-2,2,3,3-tetrafluoropropylether and fluoroethylene carbonate are introduced into the amide-based electrolyte as counter solvent and additives.The well-designed amide-based electrolyte possesses nonflammability,high ionic conductivity,high thermal stability and electrochemical stability(>4.7 V).Besides,an inorganic/organic-rich solid electrolyte interphase with an abundance of LiF,Li3N and Li-N-C is in situ formed,leading to spherical lithium deposition.The formation mechanism and solvation chemistry of amide-based electrolyte are further inves-tigated by molecular dynamics simulations and density functional theory.When applied in Li metal batteries with LiFePO4 and LiMn2O4 cathode,the amide-based electrolyte can enable stable cycling performance at room temperature and 60℃.This study provides a new insight into the development of amide-based electrolytes for lithium metal batteries.

关键词： Amide-based electrolyte Nonflammable Inorganic/organic-rich solid electrolyte interphase Dendrite-free Lithium metal batteries

Additively Manufactured Flexible Electronics with Ultrabroad Range and High Sensitivity for Multiple Physiological Signals'Detection

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Research 2022年第4期2022卷 707-717页

作者： Huanhuan Feng Yaming Liu Liang Feng Limeng Zhan Shuaishuai Meng Hongjun Ji jiaheng zhang Mingyu Li Peng He Weiwei Zhao Jun Wei Sauvage Laboratory for Smart Materials Shenzhen Key Laboratory of Flexible Printed Electronics TechnologyHarbin Institute of Technology(Shenzhen)China State Key Laboratory of Advanced Welding and Joining(Shenzhen) Harbin Institute of Technology(Shenzhen)China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyChina

Flexible electronics can be seamlessly attached to human skin and used for various purposes, such as pulse monitoring, pressure measurement, tensile sensing, and motion detection. Despite their broad applications, most flexible electronics do not possess both high sensitivity and wide detection range simultaneously;their sensitivity drops rapidly when they are subjected to even just medium pressure. In this study, ultrabroad-range, high-sensitivity flexible electronics are fabricated through additive manufacturing to address this issue. The key to possess high sensitivity and a wide detection range simultaneously is to fabricate flexible electronics with large depth-width ratio circuit channels using the additive manufacturing inner-rinsing template method. These electronics exhibit an unprecedented high sensitivity of 320 kPa^(−1) over the whole detection range, which ranges from 0.3 to 30,000 Pa (five orders of magnitude). Their minimum detectable weight is 0.02 g (the weight of a fly), which is comparable with human skin. They can stretch to over 500% strain without breaking and show no tensile fatigue after 1000 repetitions of stretching to 100% strain. A highly sensitive and flexible electronic epidermal pulse monitor is fabricated to detect multiple physiological signals, such as pulse signal, breathing rhythm, and real-time beat-to-beat cuffless blood pressure. All of these signals can be obtained simultaneously for detailed health detection and monitoring. The fabrication method does not involve complex expensive equipment or complicated operational processes, so it is especially suitable for the fabrication of large-area, complex flexible electronics. We believe this approach will pave the way for the application of flexible electronics in biomedical detection and health monitoring.

关键词： fatigue additive stretching

MicroRNA-208a silencing against myocardial ischemia/reperfusion injury mediated by reversibly camouflaged biomimetic nanocomplexes

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Nano Research 2023年第8期16卷 11176-11185页

作者： Jianhui Lu jiaheng zhang Wen Yan Chenglong Ge Yang Zhou Rongying Zhu Shanzhou Duan Lichen Yin Yongbing Chen Department of Thoracic Surgery Suzhou Key Laboratory of Thoracic OncologyThe Second Affiliated Hospital of Soochow UniversitySuzhou 215004China Center of Stomatology The Second Affiliated Hospital of Soochow UniversitySuzhou 215004China Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano&Soft Materials(FUNSOM)Collaborative Innovation Center of Suzhou Nano Science&TechnologySoochow UniversitySuzhou 215123China

MicroRNA-208a(miR-208a)plays critical roles in the severe fibrosis and heart failure post myocardial ischemia/reperfusion(IR)injury.MiR-208a inhibitor(mI)with complementary RNA sequence can silence the expression of miR-208a,while it is challenging to achieve efficient and myocardium-targeted delivery.Herein,biomimetic nanocomplexes(NCs)reversibly coated with red blood cell membrane(RM)were developed for the myocardial delivery of mI.To construct the NCs,membrane-penetrating helical polypeptide(PG)was first adopted to condense mI and form the cationic inner core,which subsequently adsorbed catalase(CAT)via electrostatic interaction followed by surface coating with RM.The membrane-coated NCs enabled prolonged blood circulation after systemic administration,and could accumulate in the injured myocardium via passive targeting.In the oxidative microenvironment of injured myocardium,CAT decomposed H_(2)O_(2)to produce O_(2)bubbles,which drove the shedding of the outer RM to expose the positively charged inner core,thus facilitated effective internalization by cardiac cells.Based on the combined contribution of mI-mediated miR-208a silencing and CAT-mediated alleviation of oxidative stress,NCs effectively ameliorated the myocardial microenvironment,hence reducing the infarct size as well as fibrosis and promoting recovery of cardiac functions.This study provides an effective strategy for the cytosolic delivery of nucleic acid cargoes in the myocardium,and it renders an enlightened approach to resolve the blood circulation/cell internalization dilemma of cell membrane-coated delivery systems.

关键词： myocardial ischemia/reperfusion(IR)injury microRNA-208a silencing red blood cell membrane reversible membrane coating H_(2)O_(2)responsiveness membrane-penetratingα-helical polypeptide

Boron based hypergolic ionic liquids:A review

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Green Energy & Environment 2021年第6期6卷 794-822页

作者： Zhenyu zhang Zirui Zhao Binshen Wang jiaheng zhang State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyShenzhen518055China Research Centre of Printed Flexible Electronics School of Materials Science and EngineeringHarbin Institute of TechnologyShenzhen518055China

The advance of space technology is deeply affected by the breakthrough of high-performance fuels.Hypergolic ionic liquids(HILs)are one of the most potential fuels for bipropellant systems.However,high viscosity value and low specific impulse of traditional N-based HILs limit their application.Recently,boron-based HILs with low viscosity become the new candidates,and their derivatives are also found to promote the hypergolicity as additives in HILs.Here,the synthesis,physical chemical properties and thermal performance of boron-based HILs and HILadditive system are reviewed.

关键词： Ionic liquids Hypergolic fuels Boron-based compounds

Enhancing effect of choline chloride-based deep eutectic solvents with polyols on the aqueous solubility of curcumin–insight from experiment and theoretical calculation

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中国化学工程学报:英文版 2023年第7期59卷 160-168页

作者： Wen Yu Yiyang Bo Yiling Luo Xiyan Huang Rixiang zhang jiaheng zhang Research Centre of Printed Flexible Electronics School of Materials Science and EngineeringHarbin Institute of TechnologyShenzhen 518055China

The development of green solvents for enhancing aqueous solubility of drug curcumin remains a challenge. This study explores the enhancing effect of deep eutectic solvents(DESs) on the aqueous solubility of curcumin(CUR) via experiment and theoretical calculation. Choline chloride-based DESs with polyols 1,2-propanediol(1,2-PDO), 1,3-propanediol, ethylene glycol, and glycerol as hydrogen bond donors were prepared and used as co-solvents. The CUR aqueous solubility increased with increasing the DESs content at temperature of 303.15-318.15 K, especially in aqueous ChCl/1,2-PDO(mole ratio 1:4) solutions. The positive apparent molar volume values and reduced density gradient analysis confirmed the existence of strong interactions between CUR and solvent. The van der Waals interactions and hydrogen bonding coexisted in DESs monomer retained the stability of DESs structure after introducing CUR. Moreover,the lower interaction energy of DESs…CUR system than that of the counterpart DESs further proved the strong interaction between CUR and DESs. The lowest interaction energy of ChCl/1,2-PDO…CUR system indicated that this system was the most stable and ChCl/1,2-PDO was promising for CUR dissolution.This work provides efficient solvents for utilizing curcumin, contributing to a deep insight into the interactions between DES and CUR at the molecular level, and the role of DESs on enhancing drugs solubility.

关键词： Choline chloride-polyol Deep eutectic solvents Curcumin Aqueous solubility Theoretical calculation

Biologically inspired anthraquinone redox centers and biomass graphene for renewable colloidal gels toward ultrahigh-performance flexible micro-supercapacitors

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Journal of Materials Science & Technology 2023年第20期151卷 178-189页

作者： Tiansheng Wang Shunyou Hu Yuanyuan Hu Dong Wu Hao Wu Jinxu Huang Hao Wang Weiwei Zhao Wen Yu Mi Wang Jie Xu jiaheng zhang School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China Key Laboratory of Micro-systems and Micro-structures Manufacturing of Ministry of Education Harbin Institute of TechnologyHarbin 150001China National Innovation Center for Advanced Medical Devices Harbin Institute of TechnologyShenzhen 457001China Research Centre of Printed Flexible Electronics Harbin Institute of TechnologyShenzhen 518055China Sauvage Laboratory for Smart Materials School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)ShenzhenGuangdong 518055China Department of Chemistry University of IdahoMoscowIdaho 83844-2343USA

Biomass carbon and small redox biomolecules are attractive materials for green,sustainable energy storage devices owing to their environmentally friendly,low-cost,scalable,and novel sources.However,most devices manufactured using these materials have low specific capacitance,poor cycle stability,short lifetime,complexity,and low precision of device fabrication.Herein,we report the directed self-assembly of mononuclear anthraquinone(MAQ)derivatives and porous lignin-based graphene oxide(PLGO)into a renewable colloidal gel through noncovalent interactions.These self-assembled gel electrode materials exhibited high capacitance(484.8 F g^(−1) at a current density of 1 A g^(−1))and could be further printed as flexible micro-supercapacitors(FMSCs)with arbitrary patterns and a relatively high resolution on specific substrates.The FMSCs exhibited excellent areal capacitance(43.6 mF cm^(−2)),energy and power densities(6.1μWh cm^(−2) and 50μW cm^(−2),respectively),and cycle stability(>10,000 cycles).Furthermore,the printed FMSCs and integrated FMSC arrays exhibited remarkable flexibility while maintaining a stable capacitance.The proposed approach can be applied to other quinone biomolecules and biomass-based carbon materials.This study provides a basis for fabricating green and sustainable energy storage device architectures with high capacitance,long-term cycling,high scalability,and high precision.

关键词： Biomass carbon Mononuclear anthraquinone Noncovalent interactions Renewable colloidal gel Flexible micro-supercapacitors

通智测试——基于动态具身物理社会交互环境的通用人工智能测试

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Engineering 2024年第3期34卷 12-22页

作者： Yujia Peng jiaheng Han Zhenliang zhang Lifeng Fan Tengyu Liu Siyuan Qi Xue Feng Yuxi Ma Yizhou Wang Song-Chun Zhu National Key Laboratory of General Artificial Intelligence Beijing Institute for General Artificial IntelligenceBeijing 100086China Institute for Artificial Intelligence Peking UniversityBeijing 100871China Beijing Key Laboratory of Behavior and Mental Health School of Psychological and Cognitive SciencesPeking UniversityBeijing 100871China School of Intelligence Science and Technology Peking UniversityBeijing 100871China School of Computer Science Peking UniversityBeijing 100871China

The release of the generative pre-trained transformer(GPT)series has brought artificial general intelligence(AGI)to the forefront of the artificial intelligence(AI)field once again.However,the questions of how to define and evaluate AGI remain unclear.This perspective article proposes that the evaluation of AGI should be rooted in dynamic embodied physical and social interactions(DEPSI).More specifically,we propose five critical characteristics to be considered as AGI benchmarks and suggest the Tong test as an AGI evaluation system.The Tong test describes a value-and ability-oriented testing system that delineates five levels of AGI milestones through a virtual environment with DEPSI,allowing for infinite task generation.We contrast the Tong test with classical AI testing systems in terms of various aspects and propose a systematic evaluation system to promote standardized,quantitative,and objective benchmarks and evaluation of AGI.

关键词： Artificial general intelligence Artificial intelligence benchmark Artificial intelligence evaluation Embodied artificial intelligence Value alignment Turing test Causality

Free-standing phosphorous-doped molybdenum nitride in 3D carbon nanosheet towards hydrogen evolution at all pH values

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Journal of Energy Chemistry 2020年第11期29卷 44-51页

作者： Qiyou Wang Yan zhang Wenpeng Ni Yi zhang Tian Sun jiaheng zhang Junfei Duan Yang Gao Shiguo zhang College of Materials Science and Engineering Hunan Province Key Laboratory for Advanced Carbon Materials and Applied TechnologyHunan UniversityChangsha 410082HunanChina School of Materials Science and Engineering Harbin Institute of TechnologyShenzhen 518055GuangdongChina School of Materials Science and Engineering Changsha University of Science and TechnologyChangsha 410004HunanChina

Highly efficient electrocatalysts towards hydrogen evolution reaction(HER) with large current density at all-pH values are critical for the sustainable hydrogen production. Herein, we report a free-standing HER electrode, phosphorous-doped molybdenum nitride nanoparticles embedded in 3-dimentional carbon nanosheet matrix(P-Mo2N-CNS) fabricated via one-step carbonization and in-situ formation. The asprepared catalyst shows free-standing architecture with interconnected porous microstructure. P-doped Mo2N nanoparticles with an average diameter of 4.4 nm are well embedded in the 3-dimentional vertical carbon nanosheets matrix. Remarkable electrocatalytic HER performance is observed in alkaline, neutral and acidic media at large current densities. The overpotential of P-Mo2N-CNS to drive a current density of 100 mA cm-2 in 0.5 M H2SO4 and 1.0 M PBS is only 181 and 221 mV, respectively. In particular, the current density reaches up to 1000 mA cm-2 at a low overpotential of 256 mV in 1.0 M KOH, much better than that of the commercial Pt/C catalyst. Density functional theory calculations suggest the optimized H sorption kinetics on Mo2N after P doping, elucidating the superior activity.

关键词： Hydrogen evolution reaction Molybdenum nitride Heteroatoms doping Free-standing catalyst DFT calculations

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基于吉布斯采样的稀疏水声信道估计方法

哈尔滨工程大学学报（英文版） 2024年第2期23卷 434-442页

作者：佟文涛葛威贾亦真张嘉恒 National Key Laboratory of Underwater Acoustic Technology Harbin Engineering UniversityHarbin 150001China Key Laboratory for Polar Acoustics and Application of Ministry of Education Harbin Engineering UniversityHarbin 150001China College of Underwater Acoustic Engineering Harbin Engineering UniversityHarbin 150001China Qingdao Innovation and Development Center of Harbin Engineering University Qingdao266400China State Key Laboratory of Acoustics Institute of AcousticsChinese Academy of SciencesBeijing 100190China

The estimation of sparse underwater acoustic(UWA)channels can be regarded as an inference problem involving hidden variables within the Bayesian framework.While the classical sparse Bayesian learning(SBL),derived through the expectation maximization(EM)algorithm,has been widely employed for UWA channel estimation,it still differs from the real posterior expectation of channels.In this paper,we propose an approach that combines variational inference(VI)and Markov chain Monte Carlo(MCMC)methods to provide a more accurate posterior estimation.Specifically,the SBL is first re-derived with VI,allowing us to replace the posterior distribution of the hidden variables with a variational distribution.Then,we determine the full conditional probability distribution for each variable in the variational distribution and then iteratively perform random Gibbs sampling in MCMC to converge the Markov chain.The results of simulation and experiment indicate that our estimation method achieves lower mean square error and bit error rate compared to the classic SBL approach.Additionally,it demonstrates an acceptable convergence speed.

关键词： Sparse bayesian learning Channel estimation Variational inference Gibbs sampling