植酸/聚间苯二胺修饰纳米SiO_(2)制备水性环氧复合涂层及其防腐性能

以溶胶凝胶法制备了γ-缩水甘油醚氧丙基三甲氧基硅烷(KH560)改性SiO_(2)(f-SiO_(2));将间苯二胺(mPD)原位聚合制备的聚间苯二胺(PmPD)共价接枝在f-SiO_(2)表面,制得(PmPD-SiO_(2));最后,通过分子间作用力将植酸(PA)与PmPD-SiO_(2)结合制得PA/PmPD-SiO_(2)复合材料,用于制备水性环氧复合涂层。采用红外光谱、热失重分析和X射线光电子能谱表征了产物结构,通过扫描电镜、电化学和盐雾试验对涂层的防腐性能进行分析。结果表明,当添加质量分数为0.5%的PA/PmPD-SiO_(2)时,涂层附着力0级、铅笔硬度3H、耐冲击45 kg·cm,缓蚀效率为97.2%,耐腐蚀性最佳;腐蚀电流密度较纯水性环氧树脂(WEP)涂层缩小了36倍,低频阻抗模量较纯WEP涂层提升了2个数量级。

Stratified Prophylaxis of Deep Venous Thrombosis in Surgical Patients Based on Caprini Risk Assessment: A Pilot Study

BACKGROUD: Venous thromboembolism (VTE) including DVT and pulmonary embolism (PE) can be a devastating complication in postoperative patients which is also considered the most likely to be prevented. The proper assessment and effective identification of high risk factors of DVT are the basis for its prevention. We used the Caprini risk assessment model (Caprini RAM) based on many researches about the validation of DVT risk assessment model, and combined the recommendations reported in American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (9th) and Chinese Orthopaedics Association guideline, to give surgical patients stratified prophylaxis. STUDY DESIGN: Between April 2016 and December 2016, we conducted a controlled trial study in 4 surgical departments including Gynecology Department, Joint Surgery, Spinal Surgery and Urology Surgery. 764 patients were included in control group, and 772 patients were included in intervention group. We used the original assessment and prevention methods in control group, while applied the stratified prophylaxis based on Caprini risk assessment level in intervention group. The incidence of DVT was analyzed using chi-square test, while patients’ hospital day was analyzed by independent t-tests. RESULTS: There was significantly difference in incidence rate of DVT between the two groups (13.09‰ vs. 2.59‰, P < 0.05), while the difference in hospital day was not significantly (10.63 ± 5.80 vs. 10.29 ± 5.18, P > 0.05). Most of the surgical patients were with moderate or high-risk (64.93%). CONCLUSIONS: Nurses could identify DVT risk factors in surgical patients using the Caprini risk assessment scale, and apply targeted stratified prophylaxis according to risk level. This model makes DVT risk assessment and intervention process more standardized and effective. It can also reduce incidence rate of DVT significantly. .

钢渣分相熟料研究与应用进展

受钢渣安定性不良、易磨性差、活性低的制约,钢渣在我国的综合利用率不足30%。针对钢渣在水泥领域中的应用瓶颈,提出了一种钢渣分相熟料烧成技术,将未经粉磨的原状钢渣直接投放到回转窑中,形成一种以热处理钢渣为内核、高铁熟料为过渡区、普通熟料为外壳的钢渣分相熟料。模拟实验表明:钢渣分相熟料技术烧制的熟料中C3S和C2S晶体发育更为完整,熟料易磨性与普通熟料相当且强度高。该技术提高了窑的台时产量,降低煤耗和CO2排放。钢渣分相熟料烧成技术可以大规模、高附加值地消纳钢渣,具有较高的经济效益和生态环保效益。

面向电化学储能与转化的表界面工程

随着不可再生化石燃料的枯竭和人类能源需求的快速增长,能源利用正从传统化石能源主体逐渐转向低碳可再生能源。2020年9月,习近平总书记在第75届联合国大会上提出:“中国将在未来几十年里,采取一系列方法、政策和措施,CO_(2)排放力争于2030年前达到峰值,争取在2060年前实现碳中和。”当前,“碳达峰、碳中和”显然已成为社会各界热议的焦点,高效的能源转换和储存已被视为最重要的全球挑战之一。

Electronic Coupling of Single Atom and FePS_3 Boosts Water Electrolysis

Engineering the electronic structure of surface active sites at the atomic level can be an efficient way to modulate the reactivity of catalysts.Herein,we report the rational tuning of surface electronic structure of FePS_(3) nanosheets(NSs)by anchoring atomically dispersed metal atom.Theoretical calculations predict that the strong electronic coupling effect in single-atom Ni-FePS_(3) facilitates electron aggregation from Fe atom to the nearby Ni-S bond and enhances the electron-transfer of Ni and S sites,which balances the oxygen species adsorption capacity,reinforces water adsorption and dissociation process to accelerate corresponding oxygen evolution reaction(OER)and hydrogen evolution reaction(HER).The optimal Ni-FePS_(3)NSs/C exhibits outstanding electrochemical water-splitting activities,delivering an overpotential of 287 mV at the current density of 10 mA cm^(-2) and a Tafel slope of 41.1 mV dec^(-1) for OER;as well as an overpotential decrease of 219 mV for HER compared with pure FePS_(3)NSs/C.The concept of electronic coupling interaction between the substrate and implanted single active species offers an additional method for catalyst design and beyond.

Analysis of Products Related to Vegetation Blanket

Roof greening has gradually become an important component of urban greening. Because of the advantages of low building load and low price,vegetation blanket roof greening has gradually become a widely spread technology of roof greening. In this paper,the characteristics of vegetation blanket roof greening technology are analyzed and summarized,and reasonable suggestions are provided for construction.

Pd single atoms cooperate with S vacancies in ZnIn_(2)S_(4) nanosheets for photocatalytic pure-water splitting

Photocatalytic water splitting has emerged as a new frontier for converting solar energy to green H_(2) and value-added chemicals.Nevertheless,great challenges still remain for developing efficient photocatalysts for pure water splitting without sacrificial agents.In this work,we demonstrate that doping hexagonal ZnIn_(2)S_(4)(ZIS) with Pd single atoms(Pd_(0.03)/ZIS) can serve as a highly efficient photocatalyst for pure water splitting to simultaneously produce H_(2) and H_(2)O_(2) without any sacrificial agents.Results from aberration-corrected high-angle annular dark field scanning transmission electron microscopy,X-ray fine spectroscopy,insitu electron paramagnetic resonance and diffuse Fourier transform infrared spectroscopy reveal that doping ZIS with Pd single atoms facilitates the formation of S vacancies(S_(v)),where the photogenerated electrons can transfer to Pd single atoms,as a result of enhanced separation of electron-hole pairs and improved photocatalytic performance.Impressively,Pd_(0.03)/ZIS displays a stoichiometric ratio of H_(2) and H_(2)O_(2) with the productivity of 1,037.9 and 1,021.4μmol g^(-1)h^(-1),respectively,which has largely outperformed pure ZIS and other reported catalysts for pure water splitting.This work provides an efficient photocatalyst for water splitting to produce H_(2) and H_(2)O_(2),which may attract rapid interest in materials science,chemistry,and heterogeneous catalysis.

Antimony oxides-protected ultrathin Ir-Sb nanowires as bifunctional hydrogen electrocatalysts

Developing electrocatalysts with fast kinetics and long-term stability for alkaline hydrogen oxidation reaction(HOR)and hydrogen evolution reaction(HER)is of considerable importance for the industrial production of green and sustainable energy.Here,an ultrathin Ir-Sb nanowires(Ir-Sb NWs)protected by antimony oxides(SbO_(x))was synthesized as an efficient bifunctional catalyst for both HOR and HER under alkaline media.Except from the much higher mass activities of Ir-Sb nanowires than those of Ir nanowires(Ir NWs)and commercial Pt/C,the SbO_(x) protective layer also contributes to the maintenance of morphology and anti-CO poisoning ability,leading to the long-term cycling performance in the presence of CO.Specifically,the Ir-Sb NW/SbO_(x) exhibits the highest catalytic activities,which are about 3.5 and 4.8 times to those of Ir NW/C and commercial Pt/C toward HOR,respectively.This work provides that the ultrathin morphology and H_(2)O-occupied Sb sites can exert the intrinsic high activity of Ir and effectively optimize the absorption of OH*both in alkaline HER/HOR electrolysis.

Modulate the electronic structure of Cu_(7)S_(4)nanosheet on TiO_(2)for enhanced photocatalytic hydrogen evolution

TiO_(2)is a promising photocatalyst due to its high thermodynamic stability and non-toxicity.However,its applications have been still limited because of the high recombination rate of electron-hole pairs.Herein,we show that by combining heterojunction construction and electronic structure regulation,the electron-hole pairs in TiO_(2)can be effectively separated for enhanced photocatalytic hydrogen evolution.The optimized Cu_(7)S_(4)nanosheet decorated TiO_(2)achieves much enhanced H_(2)evolution rate(11.5 mmol·g−1·h−1),which is 13.8 and 4.2 times of that of TiO_(2)and Cu_(7)S_(4)/TiO_(2),respectively.The results of photoluminescence spectroscopy,transient photocurrent spectra,ultraviolet-visible diffuse reflectance spectra,and electrochemical impedance spectroscopy collectively demonstrate that the enhanced photocatalytic performance of Air-Cu_(7)S_(4)/TiO_(2)is attributed to the effective separation of charge carriers and widened photoresponse range.The electron paramagnetic resonance and X-ray photoelectron spectroscopy results indicate that the increase of Cu2+in the Cu_(7)S_(4)nanosheet after calcination can promote the charge transfer.This work provides an effective method to improve the electron migration rate and charge separation of TiO_(2),which holds great significance for being extended to other material systems and beyond.

Surface Engineered Ru_(2)Ni Multilayer Nanosheets for Hydrogen Oxidation Catalysis

The hydrogen oxidation reaction(HOR)in alkaline conditions is of great importance for the application of anion exchange membrane fuel cells(AEMFCs).However,the electrocatalysts for alkaline HOR generally suffer from the disadvantage of sluggish kinetics.Herein,we have fabricated Ru2Ni multilayered nanosheets(Ru2Ni MLNSs)in the layer-by-layer manner and engineered the surface properties via postannealing for efficient alkaline HOR.Detailed investigations reveal that such annealing at different temperatures can alter the surface properties of Ru2Ni MLNSs and thus regulate their adsorption abilities toward*H and*OH.In particular,the optimal catalyst exhibits a mass activity of 4.34 A mgRu−1 at an overpotential of 50 mV,which is 18.1 and 13.2 times higher than those of Ru/C(0.24 A mgRu−1)and Pt/C(0.33 A mgPt−1),respectively.Theoretical calculations indicate that the presence of surface O atoms can facilitate the HOR activity while the excessive coverage of O atoms on Ru2Ni surface leads to the strengthened H binding and the decay of HOR activity.This work not only provides an efficient catalyst for alkaline HOR,but it also may shed new light on the design of high-performance catalysts for electrocatalysis and beyond.We have fabricated Ru2Ni multilayer nanosheets(Ru2Ni MLNSs)and realized the surface engineering via an annealing process.Detailed investigations show that such surface engineering can regulate the surface properties and thus promote the alkaline HOR activity.Consequently,the optimal catalyst exhibits a much higher activity than those of commercial Ru/C and Pt/C and is a promising catalyst for alkaline HOR.

Single-Site Cu-Doped PdSn Wavy Nanowires for Highly Active,Stable,and CO-Tolerant Ethanol Oxidation Electrocatalysis

Developing a catalyst to break the tradeoff relation-ship between the catalytic activity and antipoisoning property toward the ethanol oxidation reaction(EOR)is of critical importance to the development of direct ethanol fuel cells(DEFCs),but remains challenging.Here,we developed a unique class of single-site Cu-doped PdSn wavy nanowires(denoted as SS Cu−PdSn WNWs)with promoted activity and durability toward alkaline EOR.Detailed characterizations reveal the atomic isolation of Cu species dispersed on the surface of the PdSn WNWs with distinct wavy structure and grain boundaries.The created SS Cu−PdSn WNWs exhibit an enhanced EOR performance in terms of mass activity,which is higher than those of PdSn WNWs,commercial Pd black,and commercial Pd/C,respectively.Moreover,the SS Cu−PdSn WNWs can also show improved stability as compared to other catalysts due to the improved antipoisoning property from the unique surface anchoring structure.Further investigations demonstrate that the doped SS Cu can strongly inhibit the adsorption of CO and promote the reaction process of EOR.DFT results reveal that the doped Cu shifts down the d-band center of PdSn,thereby modifying the adsorption of intermediates and reducing the reaction barrier of EOR.This work maps a pathway for optimally boosting EOR performance with surface engineering via atomic doping.

One-step strategy to graphene/Ni（OH）2 composite hy- drogels as advanced three-dimensional supercapacitor electrode materials

基于 Graphene 三维(3D ) 宏观的材料最近在电气化学的精力变换和存储由他们的令人激动的潜力的优点吸引了增加的兴趣。这里，我们报导灵巧的一步舞策略准备机械地强壮、电子上传导性的 graphene/Ni (哦) 有一个互连的多孔的网络的 2 合成 hydrogels。没有增加任何另外的文件夹或传导性的添加剂，合成 hydrogels 直接被用作 3D supercapacitor 电极材料。包含 82 wt.% Ni 的优化合成 hydrogel (哦) 2 与优秀骑车在 40 mV/s (63% 电容保留) 以 5 mV/s 和 785 F/g 的扫描率展出了 1,247 F/g 的一个特定的电容稳定性。3D hydrogels 的能力极大地超过 graphene 表和 Ni 的物理混合物的(哦) 2 nanoplates (在 40 mV/s 的 309 F/g ) 。一样的策略也被使用制作 graphene 碳 nanotube/Ni (哦) 有进一步改进的特定的电容(在 5 mV/s 的 1,352 F/g ) 和率能力(在 40 mV/s 的 66% 电容保留) 的 2 第三的合成 hydrogels。这里获得的两合成 hydrogels 能交付高精力密度(43 和 47 Wh/kg，分别地) 并且力量密度(8 和 9 kW/kg，分别地) ，为 supercapacitor 应用使他们成为吸引人的电极材料。这研究打开一条新小径到功能的 3D graphene 的设计和制造合成材料，和罐头显著地包括精力存储并且在以外影响宽广区域。

In situ development of highly concave and compositionconfined PtNi octahedra with high oxygen reduction reaction activity and durability

有为催化氧减小反应(ORR ) 的唯一的结构的 PtNi 金属 nanocrystals 的控制综合体吸引了大兴趣。这里，我们报导单个水晶的 PtNi octahedra 的一步舞合成与在里面开发 situ 高度为 ORR 是最佳的凹面特征和自我限制的作文。揭示的详细研究充满磅的播种、随后的 Pt/Ni 合作减小，和 PtNi 融合导致了一致单个水晶的 PtNi octahedra，并且 Ni 富有的表面蚀刻的 Ni 方面分离和氧的联合导致了凹度并且限制了 Ni 内容。凹面 PtNi nanocrystals 以两个比商业地可得到的 Pt/C 催化剂展出了高得多的 ORR 性能特定的活动(高 29.1 倍) 并且集体活动(高 12.9 倍) 在 0.9 V (对可逆的氢电极(RHE )) 。没有凹度，表演也比 PtNi octahedra 的高，证实更高的活动是仔细与它的形态学有关。而且，凹面 octahedra 也由于不稳定的地点的钝化在 ORR (在在 0.6 和 1.1 V 对 RHE 之间的 10,000 个周期以后仍然是的 93% 集体活动) 展出了显著稳定性。

Multiple structural defects in ultrathin NiFe-LDH nanosheets synergistically and remarkably boost water oxidation reaction

Modifying electrocatalysts nanostructures and tuning their electronic properties through defects-oriented synthetic strategies are:essential to improve the oxygen evolution reaction(OER)performance of electrocatalysts.Current synthetic strategies about.electrocatalysts mainly target the single or double structural defects,while the researches about the synergistic effect of multiple'structural defects are rare.In this work,the ultrathin NiFe layered double hydroxide nanosheets with a holey structure,oxygen;vacancies and Ni^(3+)defects on nickel foam(NiFe-LDH-NSs/NF)are prepared by employing a simple and green H202-assisted etching 1 method.The synergistic effect ofthe above three defects leads to the exposure of.more active sites and significant improvement of:the intrinsic activity.The optimized catalyst exhibits an excellent OER performance with an extraordinarily low overpotential of 170 mV;at to mA·cm^(-2) and a small Tafel slope of 39.3 mV·dec^(-1) in 1 M KOH solution.Density functional theory calculations reveal this OER;performance arises from pseudo re-oxidized metal-stable Ni^(3+)near oxygen vacancies(O_(vac)),which suppresses 3d-e_(g) of Ni-site and!elevates d-band center towards the competitively low electron-transferbarrier.This work provides a new insight to fabricate advanced electrocatalysts for renewable energy conversion technologies.

调控超细高熵合金晶格应变用于高活性和高稳定性甲醇氧化

高熵合金(HEAs)因其非常规的组成和独特的物理化学性质而得到广泛研究.本文,我们首次提出了一种表面应变策略来调控HEAs的电子结构用于高效的甲醇电氧化反应(MOR).高分辨像差校正扫描透射电子显微镜(STEM)和元素分布分析表明,在Pt Fe CoNi Cu HEAs中各原子分散均匀,并形成FCC晶体结构.700℃热处理所得HEA-700的压缩应变比400℃热处理所得HEA-400的压缩应变高0.94%.正如预期,HEA-700的比活性和质量活性远超HEA-400和目前大多数最先进的催化剂.MOR活性的增强归因于压缩应变导致HEA-700中Pt–Pt键距缩短.同时,核中的非贵金属原子通过转移电子到表面Pt层产生压缩应变和d带中心的下移.这项工作为高性能HEAs电催化剂的设计提供了一个新的视角.

Atomically isolated Pd sites within Pd-S nanocrystals enable trifunctional catalysis for direct,electrocatalytic and photocatalytic syntheses of H_(2)O_(2)

Although high-efficiency production of hydrogen peroxide(H_(2)O_(2))can be realized separately by means of direct,electrochemical,and photocatalytic synthesis,developing versatile catalysts is particularly challenging yet desirable.Herein,for the first time we reported that palladium-sulphur nanocrystals(Pd-S NCs)can be adopted as robust and universal catalysts,which can realize the efficient O_(2) conversion by three methods.As a result,Pd-S NCs exhibit an excellent selectivity(89.5%)to H_(2)O_(2)with high productivity(133.6 mol·kgcat^(−1)·h^(−1))in the direct synthesis,along with the significantly enhanced H_(2)O_(2)production activity and stability via electrocatalytic and photocatalytic syntheses.It is demonstrated that the isolated Pd sites can enhance the adsorption of O_(2) and inhibit its O–O bond dissociation,improving H_(2)O_(2)selectivity and reducing H_(2)O_(2)degradation.Further study confirms that the difference in surface atom composition and arrangement is the key factor for different ORR mechanisms on Pd NCs and Pd-S NCs.

Enhancing catalytic H2 generation by surface electronic tuning of systematically controlled Pt-Pb nanocrystals

Although many previous studies have show n that the shape-c ontrol of nano crystal(NCs)is an efficient strategy to improve the catalytic performance,these syntheses were conducted under very different conditions,which are not suitable for the shape-dependent properties studies as well as catalysis optimization.Herein,we demonstrate an effective method for the selective synthesis of well-defined PtPb NCs in a highly con trollable mariner.Four disti net PtPb NCs,n amely PtPb pea nut nano crystals,PtPb hexag onal nan opiates,PtPb octahedra nano crystals(ONCs)and PtPb nan oparticles have been selectively prepared in the prese nee of differe nt phe nols.Sign ifica ntly,we found that the created PtPb NCs/C shows the shape-dependent activity with the optimized PtPb ONCs/C being the most active for the ethanol reforming to H2,22.4 times higher than the commercial Pt/C.The high performance of PtPb ONCs/C has been also successfully expanded into other polyhydric alcohols reformings.X-ray photoelectron spectroscopy(XPS)reveals that the high Pt(O)/Pt(ll)ratio in PtPb NCs/C enhances the alcohols reforming.The density functional theory(DFT)studies show the PtPb ONCs possess the highest surface averaged electronic occu patio n for unit Pt-atom,matchi ng well with XPS results.The PtPb ONCs/C also displays excelle nt durability with limited activity decay and negligible structure/composition changes after ten cycles.This work demonstrates an important advance in the high-level control of metallic nanostructures to tune the catalytic activities.

Efficient catalytic hydrogen generation by intermetallic platinum-lead nanostructures with highly tunable porous feature

The water-gas shift(WGS) reaction is an essential industrial reaction for upgrading hydrogen(H2) by removing carbon monoxide(CO), while highly efficient platinum(Pt)-based catalysts for WGS with simultaneously high activity and stability are still yet to be developed due to the poisoning issue during the reaction. Herein, we report on the porous PtPb peanut nanocrystals(porous PtPb PNCs) and porous PtPb octahedron nanocrystals(porous PtPb ONCs) with controllable ratios of Pt/Pb as extremely active and stable catalysts towards WGS reaction. It exhibits the composition-dependent activity with porous PtPb PNCs-40/ZnO being the most active for WGS to H_2, 16.9 times higher than that of the commercial Pt/C. The porous PtPb PNCs-40/ZnO also display outstanding durability with barely activity decay and negligible structure and composition changes after ten successive reaction cycles. X-ray photoelectron spectroscopy(XPS) results reveal that the suitable binding energy of Pt 4f_(7/2) and the high ratio of Pt(0)to Pt(II) in porous PtPb PNCs/ZnO and porous PtPb ONCs/ZnO are crucial for the enhanced WGS activity.The CO stripping results indicate the optimized CO adsorption strength on the Pt surface ensure the excellent WGS activity and the outstanding durability. The present work demonstrates an important advance in tuning the porous metal nanomaterials as highly efficient and durable catalysts for catalysis,energy conversion and beyond.

Vertical distribution and temporal evolution of formaldehyde and glyoxal derived from MAX-DOAS observations:The indicative role of VOC sources

Formaldehyde(HCHO)and glyoxal(CHOCHO)are important oxidization intermediates of most volatile organic compounds(VOCs),but their vertical evolution in urban areas is not well understood.Vertical profiles of HCHO,CHOCHO,and nitrogen dioxide(NO_(2))were retrieved from ground-based Multi-Axis Differential Optical Absorption Spectroscopy(MAXDOAS)observations in Hefei,China.HCHO and CHOCHO vertical profiles prefer to occur at higher altitudes compared to NO_(2),which might be caused by the photochemistry-oxidation of longer-lived VOCs at higher altitudes.Monthly means of HCHO concentrations were higher in summer,while enhanced amounts of NO_(2)were mainly observed in winter.CHOCHO exhibited a hump-like seasonal variation,with higher monthly-averaged values not only occurred in warm months(July-August)but also in cold months(November-December).Peak values mainly occurred during noon for HCHO but emerged in the morning for CHOCHO and NO_(2),suggesting that HCHO is stronger link to photochemistry than CHOCHO.We further use the glyoxal to formaldehyde ratio(GFR)to investigate the VOC sources at different altitudes.The lowest GFR value is almost found in the altitude from 0.2 to 0.4 km,and then rises rapidly as the altitude increases.The GFR results indicate that the largest contributor of the precursor VOC is biogenic VOCs at lower altitudes,while at higher altitudes is anthropogenic VOCs.Our findings provide a lot more insight into VOC sources at vertical direction,but more verification is recommended to be done in the future.

One-dimensional iridium-based nanowires for efficient water electrooxidation and beyond

The sluggish reaction kinetics of oxygen evolution reaction(OER)has largely lowered the efficiency of electrochemical water splitting.Ir represents one of the state-of-the-art electrocatalysts for promoting OER especially in acidic electrolytes.However,it remains a formidable challenge to synthesize high-quality one-dimensional(1D)Ir-based nanostructures for improved electrocatalytic performance.Herein,a template-assisted synthesis method is reported wherein 1D porous Ir-Te nanowires(Ir-Te NWs)are synthesized with Te NWs serving as the template.The Ir-Te NWs exhibit highly enhanced OER performance compared to commercial IrO_(2) and Ir/C.In detail,the overpotentials to reach 10 mA cm^(-2) are 248 and 284 mV in 1 M KOH and 0.5 M H2S04,respectively,much lower than those of commercial catalysts.The Ir-Te NWs also show smaller Tafel slopes than commercial IrO_(2) and Ir/C,signifying faster reaction kinetics.Besides,much more durable OER activity can be maintained for Ir-Te NWs with negligible decay during 25 and 20 h stability tests in 1 M KOH and 0.5 M H_(2)SO_(4),respectively.Further analysis indicates that the significantly improved OER performance of Ir-Te NWs could be ascribed to the larger electrochemical surface area and smaller electrical resistance.More significantly,the templated synthesis of Ir-Te NWs can be facilely extended to the fabrication of other metal-Te NWs including Ru-Te,Rh-Te and Pt-Te NWs.The design and synthesis of 1D metal-based NWs in this work provide important inspiration for the synthesis of diversified 1D metallic nanostructures with distinctly enhanced catalytic performance and beyond.