carbon

摘要： China’s first carbon dioxide(CO_(2))measurement satellite mission,TanSat,was launched in December 2016.This paper introduces the first attempt to detect anthropogenic CO_(2) emission signatures using CO_(2) observations from TanSat and NO_(2) measurements from the TROPOspheric Monitoring Instrument(TROPOMI)onboard the Copernicus Sentinel-5 Precursor(S5P)satellite.We focus our analysis on two selected cases in Tangshan,China and Tokyo,Japan.We found that the TanSat XCO_(2) measurements have the capability to capture the anthropogenic variations in the plume and have spatial patterns similar to that of the TROPOMI NO_(2) observations.The linear fit between TanSat XCO_(2) and TROPOMI NO_(2) indicates the CO_(2)-to-NO_(2) ratio of 0.8×10^(-16) ppm(molec cm^(-2))^(-1) in Tangshan and 2.3×10^(-16) ppm(molec cm^(-2))^(-1) in Tokyo.Our results align with the CO_(2)-to-NOx emission ratios obtained from the EDGAR v6 emission inventory.

摘要： CO_(2) utilization,including electrochemical reduction of CO_(2) to fuels and useful chemicals,is explored to valorize carbon emissions[1–12].The value of CO_(2) electroreduction products originates from their C–H,C–C,and C–O bonds.To further increase the value and expand the scope of products,it is desirable to integrate C–N bond formation with the electrochemical reduction of CO_(2).

摘要： The energy revolution is the foundation and driving force for the progress of human civilization.The discovery and utilization of fossil energy,which has greatly increased labor productivity and transformed society from a civilization based on farming into an industrial civilization,is a global energy revolution.Over the past two centuries,industrial civilization has brought about substantial progress but has also caused increasingly severe environmental and climate problems.Given these issues,governments around the world have successively formulated specific indices and deadlines for peak carbon dioxide emissions and carbon neutrality.

摘要： Potassium-ion batteries(PIBs),also known as“novel post-lithium-ion batteries,”have promising energy storage and utilization prospects due to their abundant and inexpensive raw materials.Appropriate anode materials are critical for realizing high-performance PIBs because they are an important component determining the energy and power densities.Two-dimensional(2D)layered anode materials with increased interlayer distances,specific surface areas,and more active sites are promising candidates for PIBs,which have a high reversible capacity in the energetic pathway.In this review,we briefly summarize K+storage behaviors in 2D layered carbon,transition metal chalcogenides,and MXene materials and provide some suggestions on how to select and optimize appropriate 2D anode materials to achieve ideal electrochemical performance.

摘要： Background:Forest based climate mitigation emerged as a key component of the Paris Agreement,and thus re-quires robust science to reduce uncertainties related to such strategies.The aim of this study was to assess and compare the cumulative effects on carbon dynamics of forest management and climate change on boreal and northern temperate forest sector in eastern Canada for the 2020–2100 period.Methods:We used the spatially explicit forest landscape model LANDIS-II and its extension Forest Carbon Suc-cession,in conjunction with the Carbon Budget Model for Harvested Wood Products framework.We simulated the dynamics of forest composition and carbon flows from forest ecosystems to wood products and their substitution effect on markets under increasing climate forcing,according to a tonne-year approach.Simulations were con-ducted for a series of forest management scenarios based on realistic practices principally by clearcut in the boreal territory and continuous-cover forestry in the northern temperate one.These scenarios included:i)a business-as-usual scenario(BaU),representing the current management strategy,ii)increased harvesting by 6.3%to 13.9%,iii)increased conservation(i.e.reduced harvesting by 11.1%to 49.8%),iiii)and a scenario representing the natural evolution of the forest landscape(i.e.without any management activity).Results:Our study revealed that increasing harvesting levels had contrasting effects on the mitigation potential in northern temperate(enhance net sequestration)and boreal forest sector(enhance net emissions)in comparison to the BaU from 2040 onwards,regardless of the future climate.Carbon storage in wood products and the substi-tution effect were not sufficient to offset carbon emissions from ecosystems.Moreover,climate change had a strong impact on the capacity of both landscapes to act as carbon sinks.Northern temperate landscapes became a net source of carbon over time due to their greater vulnerability to climate change than boreal landscapes.Conclusions:Our study highlights the need to consider the initial landscape characteristics in simulations to maximize the mitigation potential of alternative forest management strategies.The optimal management solution can be very different according to the characteristics of forest ecosystems.This opens the possibility of optimizing management for specific forest stands,with the objective of maximizing the mitigation potential of a given landscape.

摘要： New Carbon Materials is a bimonthly journal published with the permission of the Ministry of Science and Technology and of the State News and Publication Agency.The journal is sponsored by the lnstitute of Coal Chemistry,Chinese Academy of Sciences,and is published by Science Press.Aims and Scope New Carbon Materials publishes research devoted to the physics,chemistry and technology of those organic substances that are precursors for producing aromatically or tetrahedrally bonded carbonaceous solids,and of the materials that may be produced from those organic precursors.

摘要： This work reviews the opportunities to make the communication of Carbon Footprint more effective,starting from the experience of CFI(Carbon Footprint Italy)and moving in the direction of CFIA(Carbon Footprint International Alliance).In view of the implementation of the ambitious policies set globally,requiring a quick and irreversible decarbonization of all the sectors,it is crucial to guarantee that transparent,reliable,and effective information is provided to the public.The analysis is built on CFI,the Italian initiative,and is focused on the global initiatives that are evolving worldwide.To ensure the best communication possible of carbon footprints all around the world,it becomes necessary for all the programmes to apply the same,credible rules and collaborate in view of a mutual,multilateral recognition.Built upon the experience of MLA(Multi-Lateral Agreements)among accreditation bodies,the CFIA aims at gathering the existing initiatives to create a strengthened international network to boost the global recognition of carbon footprints,thus facilitating the enhancement of virtuous companies in the global market.

摘要： Adsorbents with simple preparation and high surface area have become increasingly prevalent for the removal of organic contaminants.Herein,a carbon nanoplate codoped by Co and N elements with abundant ordered mesoporous(Co/N-MCs)was applied as an adsorbent for tetracycline removal.Taking integrated advantages of ordered mesopores on carbon-based structures and N-doping inducing the strengthenedπ–πdispersion and generation of pyridinic N,as well as cobaltic nanoparticles embedded in carbon nanoplates,the Co/N-MCs was tailored for high efficiently absorbing tetracycline viaπ-πinteraction,Lewis acid-base interaction,metal complexation and electrostatic attraction.The Co/N-MCs had the advantages of high surface area,porous structure,plenty adsorption sites,and easy separation.As such,the as-prepared Co/N-MCs adsorbents significantly enhanced tetracycline removal performance with a maximum adsorption capacity of 344.83 mg·g^(-1) at pH 6 and good reusability,which was finally applied to removal tetracycline from tap water sample.Furthermore,the adsorption process towards tetracycline hydrochloride could be well attributed to the pseudo-second-order kinetic and Langmuir isotherm models.Compared with traditional carbon-based adsorbents,it owns a simpler synthesis method and a higher adsorption capacity,as well as it is a promising candidate for water purification.

摘要： 挪威Aker Carbon Capture和丹麦Dan-Unity CO_(2)签署了一项灵活开发CO_(2)运输解决方案的合作协议,旨在建立完整的碳捕获、利用和封存(CCUS)价值链。Aker Carbon Capture和Dan-UnityCO_(2)将合作进行市场分析,探索未来CCUS价值链的发展潜力。

摘要： China is increasing its installed capacity of renewable energy generation and seeking low-carbon development with technological innovation while actively forging collaborative partnerships with other countries.

摘要： 本发明提供一种TiO2/SnO2/Carbon纳米复合物及其制备方法，其中：纳米复合物为超细短棒状结构，由锐钛矿相二氧化钛、二氧化锡和碳构成，所述短棒状纳米复合物直径为0.5‑5nm，长度为5‑20nm。所述制备方法包括如下制备步骤：A、原料配制；B、水解转化；C、沉淀收集；D、煅烧，最终得到纳米复合物。原料简单易得，工艺简单易行，避开了其他合成技术中繁琐的处理步骤和对设备的高要求，成本低，在实际生产中具有极大的经济和社会效益。

摘要： 本发明提供一种褐飞虱Carbonic？Anhydrase(CA)基因片段及其应用，褐飞虱CA基因，序列如SEQ？ID？No.1所示；及其dsRNA，序列如SEQ？ID？No.2所示。该基因可应用于抑制褐飞虱生长发育，影响褐飞虱存活率。并可将其转入水稻中，研究转基因水稻对褐飞虱的生物学影响。为此本发明为无公害、可持续防治褐飞虱提供了新的有效途径。

摘要： 本发明提供一种三维结构的MoS2/Carbon/FeOx复合材料及其制备方法，通过将氧化石墨烯粉末超声分散于水中，加入钼酸钠以及硫脲，然后进行水热反应，得到MoS2/graphene复合粉末。将二茂铁溶解于乙腈中，然后加入上MoS2/graphene粉末，超声分散均匀，然后微波反应。最后将收集到的粉末在氩气保护下高温煅烧后得到了由零维FeOx纳米颗粒、一维CNTs、二维graphene纳米片以及二维MoS2纳米片所构成的具有分级结构的三维复合纳米材料MoS2/Carbon/FeOx。

摘要： 本发明公开了一种多元复合型高活性碳源Carbon‑5及其制备与在反硝化生化处理中的应用，其是采用腐烂的水果蔬菜、淀粉生产废水、甘油生产废水为原料，先经酵母活化酒精发酵，再经醋酸菌活化发酵。本发明有效的利用了生活废弃物腐烂蔬果，这部分废弃物在不回收利用的情况下只能填埋还会造成水土富营养化，其次综合利用部分化工生产污水减小了污水处理压力变废为宝。本发明涉及的新型碳源营养丰富碳源种类丰富还富含多种微量元素非常适合细菌繁殖生长而且驯化速度快。

摘要： 本发明提供一种褐飞虱Carbonic Anhydrase(CA)基因片段及其应用，褐飞虱CA基因，序列如SEQ ID No.1所示；及其dsRNA，序列如SEQ ID No.2所示。该基因可应用于抑制褐飞虱生长发育，影响褐飞虱存活率。并可将其转入水稻中，研究转基因水稻对褐飞虱的生物学影响。为此本发明为无公害、可持续防治褐飞虱提供了新的有效途径。

摘要： 本发明为一种N含量可控的N‑doped‑carbon负载金属颗粒的异质结构制备方法及应用。该方法包括如下步骤：(1)将K2PdCl4、(3‑AP)、物质A加入到水中，得到溶液A；与此同时，将HMT与F127在水中混合，得到溶液B；随后，将溶液A、溶液B混合，反应得到产物Pd‑NP；(2)取Pd‑NP分散于水中，之后加入第二金属源，得到PdM‑NP；(3)将所得的PdM‑NP进行碳化处理，之后在臭氧氛围下进行处理，得到最终产物PdM@NxC。本发明制备的双金属负载在不同N含量的碳载体的催化剂应用到电催化还原二氧化碳领域，实现二氧化碳的高效、定向转化。