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Journal of Energy Chemistry 2023年第11期86卷 69-83,I0003页

作者： shuai niu College of Ecology Taiyuan University of TechnologyTaiyuan 030024ShanxiChina

Ammonia plays an essential role in human production and life as a raw material for chemical *** nitrate electroreduction to ammonia reaction(NO_(3)RR)has garnered attention due to its advantages over the Haber-Bosch process and electrochemical nitrogen reduction ***,it represents a promising approach to safeguard the ecological environment by enabling the cycling of nitrogen *** review begins by discussing the theoretical insights of the NO_(3)*** then summarizes recent advances in catalyst design and construction strategies,including alloying,structure engineering,surface engineering,and heterostructure ***,the challenges and prospects in this field are *** review aims to guide for enhancing the efficiency of electrocatalysts in the NO_(3)RR,and offers insights for converting NO_(3)-to NH_(3).

关键词： Nitrate electroreduction to ammonia reaction(NO^(3)RR) Structural construction strategy Nitrogen cycle Metal-based catalysts Catalytic mechanism

Vision implants:An electrical device will bring light to the blind

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Science in China(Series F) 2008年第1期51卷 101-110页

作者： niu JinHai LIU YiFei REN QiuShi ZHOU Yang ZHOU Ye niu shuai Department of Biomedical Engineering Institute for Laser Medicine and Bio-Photonics Shanghai Jiao Tong University Shanghai 200240 China

Cochlear implant has been successfully applied in clinic. Recent research indicates vision implants may be the potential way to restore sight for the blind. Here, principle and common structure of vision implants are introduced. Main vision approaches of retinal, optic nerve, and cortical prosthesis are reviewed. In our progress, electrical response at visual cortex is recorded, when penetrating electrodes stimulate rabbit optic nerve, vision implants based on optic nerve stimulator chip （ONSC） and Chipcon radio frequency （RF） chip are under developing. Despite several obstacles to overcome, promising results in animal and human experiments give scientists confidence that artificial vision implants will bring light to the blind in the near future.

关键词： vision implants electrical devices retinal optic nerve cortical prosthesis

Phosphorus-doping activates carbon nanotubes for efficient electroreduction of nitrogen to ammonia

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Nano Research 2020年第5期13卷 1376-1382页

作者： Lu-Pan Yuan Ze-Yuan Wu Wen-Jie Jiang Tang Tang shuai niu Jin-Song Hu Beijing National Laboratory for Molecular Sciences(BNLMS) CAS Key Laboratory of Molecular Nanostructure and NanotechnologyInstitute of ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

The electrochemical nitrogen reduction reaction(NRR)as an energy-efficient approach for ammonia synthesis is hampered by the low ammonia yield and ambiguous reaction ***,phosphorus-doped carbon nanotube(P-CNTs)is developed as an efficient metal-free electrocatalyst for NRR with a remarkable NH3 yield of 24.4μg·h^−1·mg^−*** partial current density of 0.61 mA·cm^−*** superior activity is found to be from P doping and highly conjugated CNTs *** and theoretical investigations discover that the electron-deficient phosphorus sites with Lewis acidity should be genuine active sites and NRR on P-CNTs follows the distal *** findings provide insightful understanding on NRR processes on P-CNTs,opening up opportunities for the rational design of highly-active cost-effective metal-free catalysts for electrochemical ammonia synthesis.

关键词： P-doped carbon nanotubes nitrogen reduction reaction active sites reaction pathway electrocatalysis

Biochar-based materials as remediation strategy in petroleum hydrocarbon-contaminated soil and water:Performances,mechanisms,and environmental impact

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Journal of Environmental Sciences 2024年第4期138卷 350-372页

作者： Zhuo Wei YiWei Yang Liu shuai niu Yaxi Xu Jong-Hwan Park Jim J.Wang Faculty of Environmental Science&Engineering Kunming University of Science&TechnologyKunming 650500China School of Plant Environment&Soil SciencesLouisiana State University AgCenter.Baton RougeLA 70803USA Department of Life Resources Industry Dong-A University37Nakdong-daero 550 beon-gilSaha-guBusan 49315South Korea

Petroleum contamination is considered as a major risk to the health of humans and *** as low-cost and eco-friendly carbon materials,have been widely used for the removal of petroleum hydrocarbon in the *** purpose of this paper is to review the performance,mechanisms,and potential environmental toxicity of biochar,modified biochar and its integration use with other materials in petroleum contaminated soil and ***,the use of biochar in oil-contaminated water and soil as well as the factors that could influence the removal ability of biochar were systematically *** addition,the modification and integrated use of biochar for improving the removal efficiency were summarized from the aspects of sorption,biodegradation,chemical degradation,and ***,the functional impacts and associated ecotoxicity of pristine and modified biochars in various environments were ***,some shortcoming of current approaches,and future research needs were provided for the future direction and challenges of modified biochar ***,this paper gain insight into biochar application in petroleum remediation from the perspectives of performance enhancement and environmental sustainability.

关键词： Petroleum contamination Adsorbent Bioremediation Biochar modification Ecotoxicity

Application of magnesium and biosurfactant functionalized biochar composite in treating cyanobacteria in phosphorus and crude oil contaminated water

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Biochar 2023年第1期5卷 862-876页

作者： Zhuo Wei Yaxi Xu Yi Wei Yang Liu shuai niu Jim J.Wang Faculty of Environmental Science and Engineering Kunming University of Science and TechnologyKunming 650500YunnanChina School of Plant Environment and Soil SciencesLouisiana State University AgCenterBaton RougeLA 70803USA

Various human activities have led to multiple contamination of natural water *** present study investigated the effect of a novel multifunctional biochar to treat nutrients,oil,and harmful algae in ***,magnesium(Mg)and biosurfactant rhamnolipid(RL)were incorporated into biochar,including Mg-biochar,RL-biochar,and *** adsorption efficiency on phosphate and total petroleum hydrocarbons(TPH)was evaluated in separate batch ***,the inhibition effect of RL-modified biochars on cyanobacteria was *** results showed that Mg-impregnated biochar showed high adsorption capacity on phosphate(118 mg g^(−1)),while RLmodified biochar significantly reduced TPH(especially aromatic and light aliphatic fraction)with adsorption capacity of 44.4 mg g^(−1).The inhibition effects of biochar composites on algae in water without contaminants were in order of Mg-RL-biochar>RL-biochar>biochar with biomass reduction ranging 61-64%.Overall,Mg-RL-biochar was suggested based on this study due to its ability to remove PO_(4)^(3)−and TPH,and inhibit the growth of toxic algae.

关键词： Biochar modification Adsorption TPH Toxic algae Eutrophication

Constructing hierarchical nanosheet-on-microwire FeCo LDH@Co3O4 arrays for high-rate water oxidation

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Nano Research 2022年第12期15卷 10021-10028页

作者： Tang Tang Zhe Jiang Jun Deng shuai niu Ze-Cheng Yao Wen-Jie Jiang Lin-Juan Zhang Jin-Song Hu Beijing National Laboratory for Molecular Sciences(BNLMS) CAS Key Laboratory of Molecular Nanostructure and NanotechnologyInstitute of ChemistryChinese Academy of SciencesBeijing100190China University of the Chinese Academy of Sciences Beijing100049China Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing100190China Shanghai Synchrotron Radiation Facility Shanghai Institute of Applied PhysicsChinese Academy of SciencesShanghai201800China Dalian National Laboratory for Clean Energy Dalian116023China

Alkaline electrochemical water oxidation powered by renewable energies is a promising and environmentally friendly way to produce *** industrial water electrolyzers are commonly operated at a high current density,calling for abundant and durable active sites to participate *** rational design of hierarchically structured electrocatalysts is thus essential to industrial water ***,we develop a Fe3+induced nanosizing strategy for fabricating such a hierarchical FeCo LDH@Co3O4(LDH:layered double hydroxide)nanostructure array for high-rate water *** functional theory(DFT)simulations indicate that the introduction of Fe3+with a small ion radius and high electrical repulsion in the LDH layer distorted the LDH layer,resulting in a reduced nanosheet size and enabling the formation of a hierarchical *** structure cannot be achieved without the participation of Fe3+*** from the significantly enhanced electrochemical surface areas and charge/mass transport due to the hierarchical structure together with the boosted intrinsic activity by electronic modulation of Fe3+,such FeCo LDH@Co3O4 electrode can deliver an industrial-level current density of 1,000 mA·cm-2 at a small overpotential of 392 mV for water *** assembled in a water electrolyzer,it delivers a current density of 100 mA·cm-2 at a low operation voltage of 1.61 *** by solar light,the electrolyzer demonstrates high solar-to-hydrogen efficiency of 18.15%with stable and reproducible *** results provide new insights for constructing hierarchical nanostructures for advanced water oxidation and other diverse applications.

关键词： electrocatalysts oxygen evolution reaction water splitting hierarchical structures layered double hydroxides

Transparent broadband microwave metamaterial absorber with thermal insulating and soundproof

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Optoelectronics Letters 2021年第2期17卷 85-89页

作者： YANG Chang CHEN Sai niu shuai XIAO Lin QU Yan-chen National Key Laboratory of Science and Technology on Tunable Laser Harbin Institute of TechnologyHarbin 150080China Nanophotonics and Optoelectronics Research Center Qian Xuesen Laboratory of Space TechnologyChina Academy of Space TechnologyBeijing 100094China Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai 200083China

Nowadays, multi-functional materials are desperately required for adapting the complex environment, which urges us to take more factors into consideration. Here, we proposed a broadband microwave absorber with multi-functionality such as optically transparent, thermal insulating and soundproof properties. Using indium tin oxide(ITO) based metamaterial, the device can achieve above 90% microwave absorption from 5.6 GHz to 23 GHz(cover X and Ku band). Moreover, with designed vacuum structure inside, the device is thermal insulating and soundproof. These multi-functional advantages give the absorber more flexibility in electromagnetic shielding and stealth application, which can be potentially applied in windows related industry.

关键词： absorber microwave proof

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An Alert for All

Beijing Review 2017年第23期60卷 18-19页

作者： niu shuai China Institutes of Contemporary International Relations

In mid-May, multiple variants of a ran- somware computer encryption virus named WannaCry rocked the *** hackers behind the attack demanded money in digital currency bitcoin by encrypt- ing computer users＇ files and l... 详细信息

关键词：英语阅读理解时事

Bcl-2蛋白抑制钙信号的建模与全局动力学分析

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物理学报 2017年第23期66卷 296-305页

作者：牛帅帅建伟祁宏山西大学复杂系统研究所太原030006 山西大学数学科学学院太原030006 厦门大学物理系厦门361005

钙离子(Ca^(2+))是生物体内一种"生死攸关"的信号分子,Bcl-2蛋白可以直接或间接调节IP_3R通道释放Ca^(2+)的能力,借此决定细胞命运.本文基于新近的实验成果,针对Bcl-2蛋白间接调控Ca^(2+)的信号通路建立数学模型,得到了与实验数据相符... 详细信息

钙离子(Ca^(2+))是生物体内一种"生死攸关"的信号分子,Bcl-2蛋白可以直接或间接调节IP_3R通道释放Ca^(2+)的能力,借此决定细胞命运.本文基于新近的实验成果,针对Bcl-2蛋白间接调控Ca^(2+)的信号通路建立数学模型,得到了与实验数据相符合的结果,从理论上证明了Bcl-2蛋白对钙信号有抑制作用.在对模型进行鲁棒性检验之后,本文对该信号通路中一些关键组分的作用进行了预测.以[IP_3]和[Bcl-2]为双分岔参数分析的结果表明Bcl-2对刺激强度能产生Ca^(2+)振荡的区域有重要影响.以蛋白磷酸酶1[PP1]和蛋白激酶A[PKA]为单分岔参数分析的结果揭示:PP1可以有效地抑制钙信号,而PKA对钙信号的促进作用有一定的局限性.模型结果表明,不同浓度组合的IP_3,Bcl-2和PKA会对钙信号发挥复杂的调控作用.本文不仅对相关生物学实验有一定的指导作用,而且可为治疗因钙信号失调而导致的疾病提供思路.

关键词： Bcl-2蛋白钙信号分岔分析

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造纸车间浆料制备系统的安全急停链设计

中国造纸 2019年第3期38卷 44-50页

作者：牛帅中国中轻国际工程有限公司北京100026

安全急停链作为一种提升机械本质安全的措施,已经越来越多地在引进制浆造纸装备的操作要求和基础工艺包中被提及。本文结合海外项目工程案例,从安全类别和停止类型的确定、安全急停的分组及布置、急停功能的电气设计三个方面,介绍了安... 详细信息

安全急停链作为一种提升机械本质安全的措施,已经越来越多地在引进制浆造纸装备的操作要求和基础工艺包中被提及。本文结合海外项目工程案例,从安全类别和停止类型的确定、安全急停的分组及布置、急停功能的电气设计三个方面,介绍了安全急停链的适用规范、配置要求以及在造纸车间浆料制备系统中的设计及应用。

关键词：急停功能安全继电器急停链浆料制备