Green Carbon最新文献

{"title":"Pathways to carbon neutrality in the built environment: Phase change materials","authors":"Wenzhu Lin,&nbsp;Xiaoxue Yao,&nbsp;Wen Zhao,&nbsp;Yiru Pu,&nbsp;Steven Wang","doi":"10.1016/j.greenca.2024.03.003","DOIUrl":"10.1016/j.greenca.2024.03.003","url":null,"abstract":"<div><p>Phase change materials (PCMs) are increasingly capturing the spotlight in the realm of building design and construction owing to their capacity to absorb and release thermal energy throughout phase transitions. This review provides a comprehensive overview of PCMs, outlining their properties and applications in improving energy efficiency, comfort, and sustainability in buildings. It delves into various types of PCMs, discussing their selection criteria, integration methods, and their impact on indoor climate and energy consumption. The exploration covers both passive and active PCM systems across diverse building components, including implications for walls, roofs, windows, and floors, and integrated heating, ventilation and air conditioning (HVAC) and solar energy storage. Additionally, the review addresses challenges associated with PCM implementation in building applications while considering future prospects in this field.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 197-204"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000272/pdfft?md5=1e93a8fec79918579fa4991fede52c9d&pid=1-s2.0-S2950155524000272-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140400655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic hydrogenolysis of organosolv lignin: Cleaving C–O bonds over CuMgAlOx-layered porous metal oxide catalysts for oriented monophenols production","authors":"Juping Liu,&nbsp;Yang Yang,&nbsp;Ziyue Tang,&nbsp;Yingquan Chen,&nbsp;Hanping Chen,&nbsp;Xianhua Wang,&nbsp;Haiping Yang","doi":"10.1016/j.greenca.2024.04.001","DOIUrl":"10.1016/j.greenca.2024.04.001","url":null,"abstract":"<div><p>To understand the catalytic conversion of lignin into high-value products, lignin depolymerization was performed using a layered polymetallic oxide (CuMgAlO_<em>x</em>) catalyst. The effects of the conversion temperature, hydrogen pressure, and reaction time were studied, and the ability of CuMgAlO_<em>x</em> to break the C–O bond was evaluated. The CuMgAlO_<em>x</em> (Mg/Al = 3:1) catalyst contained acidic sites and had a relatively homogeneous elemental distribution with a high pore size and specific surface area. The β-O-4 was almost completely converted by disassociating the C–O bond, resulting in yields of 14.74% ethylbenzene, 47.58% α-methylphenyl ethanol, and 36.43% phenol. The highest yield of lignin-derived monophenols was 85.16% under reaction conditions of 280 °C and 3 Mpa for 4 h. As the reaction progressed, depolymerization and condensation reactions occurred simultaneously. Higher temperatures (&gt; 280 ℃) and pressures (&gt; 3 Mpa) tended to produce solid char. This study establishes guidelines for the high-value application of industrial lignin in the catalytic conversion of polymetallic oxides.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 211-220"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000326/pdfft?md5=d37fbe84f1698cbda9c062c8e1678099&pid=1-s2.0-S2950155524000326-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141052822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineering pulp foam with highly improved water stability and multifunctional properties by incorporation of natural rubber and montmorillonite","authors":"Yidong Zhang ,&nbsp;Wangfang Deng ,&nbsp;Meiyan Wu ,&nbsp;Guang Yu ,&nbsp;Zhexuan Liu ,&nbsp;Na Cheng ,&nbsp;Haishun Du ,&nbsp;Chao Liu ,&nbsp;Bin Li","doi":"10.1016/j.greenca.2024.03.005","DOIUrl":"10.1016/j.greenca.2024.03.005","url":null,"abstract":"<div><p>Considering the aim of carbon neutrality and reducing plastic pollution, lightweight porous materials with good thermal insulation and mechanical robustness derived from renewable resources are in high demand. Cellulose-based pulp foams (PFs) offer considerable potential applications in many fields; however, the cost-effective manufacturing of PFs with satisfactory properties remains challenging. Herein, we demonstrate a simple and low-cost strategy to prepare a novel pulp/natural rubber (PNR) foam by combining wood pulp fiber and natural rubber latex through wet foaming and oven drying, eliminating traditional freeze-drying and solvent exchange processes. The obtained PNR foam exhibited high porosity (98.4%-99.1%), low density (14.1–24.0 mg/cm³), and excellent water stability (without disintegration under magnetic stirring for 14 days). Moreover, montmorillonite (MMT) was easily incorporated into the PNR during the preparation process, improving the mechanical strength and heat insulation of the obtained PNR-MMT foam. The optimized PNR-MMT foam could be compressed more than ten times without losing its resilience, exhibiting a compressive strength of 2.7 MPa at 80% strain, five times higher than that of pristine PF. Moreover, the PNR-MMT foam exhibited excellent flame retardant, good “spill” oil absorption, and good antibacterial properties towards <em>Escherichia coli</em> and <em>Bacillus subtilis</em>. Overall, this study provides a facile, sustainable, and low-cost route for manufacturing PNR-MMT foams with high resilience, good thermal insulation, excellent flame retardancy, and strong antibacterial properties, thus highlighting their usage potential in a broad range of applications.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 231-241"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000302/pdfft?md5=fcd31068579b2cdddeae2ab021a827cb&pid=1-s2.0-S2950155524000302-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140794668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Integration of advanced biotechnology for green carbon","authors":"Miao Wang ,&nbsp;Yixiang Wang ,&nbsp;Jingyuan Liu ,&nbsp;Hua Yu ,&nbsp;Peng Liu ,&nbsp;Yujing Yang ,&nbsp;Dan Sun ,&nbsp;Heng Kang ,&nbsp;Yanting Wang ,&nbsp;Jingfeng Tang ,&nbsp;Chunxiang Fu ,&nbsp;Liangcai Peng","doi":"10.1016/j.greenca.2024.02.006","DOIUrl":"https://doi.org/10.1016/j.greenca.2024.02.006","url":null,"abstract":"<div><p>Carbon neutralization has been introduced as a long-term policy to control global warming and climate change. As plant photosynthesis produces the most abundant lignocellulosic biomass on Earth, its conversion to biofuels and bioproducts is considered a promising solution for reducing the net carbon release. However, natural lignocellulose recalcitrance crucially results in a costly biomass process along with secondary waste liberation. By updating recent advances in plant biotechnology, biomass engineering, and carbon nanotechnology, this study proposes a novel strategy that integrates the genetic engineering of bioenergy crops with green-like biomass processing for cost-effective biofuel conversion and high-value bioproduction. By selecting key genes and appropriate genetic manipulation approaches for precise lignocellulose modification, this study highlights the desirable genetic site mutants and transgenic lines that are raised in amorphous regions and inner broken chains account for high-density/length-reduced cellulose nanofiber assembly <em>in situ</em>. Since the amorphous regions and inner-broken chains of lignocellulose substrates are defined as the initial breakpoints for enhancing biochemical, chemical, and thermochemical conversions, desirable cellulose nanofibers can be employed to achieve near-complete biomass enzymatic saccharification for maximizing biofuels or high-quality biomaterials, even under cost-effective and green-like biomass processes <em>in vitro</em>. This study emphasizes the optimal thermal conversion for generating high-performance nanocarbons by combining appropriate nanomaterials generated from diverse lignocellulose resources. Therefore, this study provides a perspective on the potential of green carbon productivity as a part of the fourth industrial revolution.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 164-175"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S295015552400017X/pdfft?md5=81433dc5eb49bb400ef3ac8bcdc4e071&pid=1-s2.0-S295015552400017X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141607929","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Customized molecular tools to strengthen metabolic engineering of cyanobacteria","authors":"Stephan Klähn ,&nbsp;Franz Opel ,&nbsp;Wolfgang R. Hess","doi":"10.1016/j.greenca.2024.05.002","DOIUrl":"10.1016/j.greenca.2024.05.002","url":null,"abstract":"<div><p>Cyanobacteria are promising oxygenic phototrophs for the production of various compounds. For their (photo)biotechnological exploitation, molecular tools are required, such as, for the introduction and expression of heterologous genes, or the modulation of enzyme activities or entire pathways. Concepts and strategies for the development of photosynthetic biomanufacturing technologies based on cyanobacteria have been extensively reviewed, as well as certain specialized aspects of their genetic manipulation. However, options for metabolic engineering of specific cyanobacterial cells are still less developed than those for other bacteria of biotechnological relevance. In addition to the standard genetic toolbox for “classical” metabolic engineering, we emphasize certain aspects, including recently developed vector systems for the extrachromosomal maintenance of genes and approaches based on clustered regularly interspaced short palindromic repeats (CRISPR) interference. We highlight the development of custom molecular tools for specific strains or products, discuss the emerging use of small regulatory proteins that appear promising for advanced metabolic engineering approaches to promote specific product formation, and provide an overview of suitable online resources. Furthermore, we discuss the current trends in this field and indicate their potential, such as using suitable product sensors that enable systematic screening, and optimization approaches.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 149-163"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000351/pdfft?md5=f35097e3aaedf59d4b4ebd6fc3c7eaa8&pid=1-s2.0-S2950155524000351-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141142510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adopting green absorbent for CO2 capture and agricultural utilization: Biogas slurry and biomass ash case","authors":"Feihong Liang ,&nbsp;Shihui Wei ,&nbsp;Lu Xue ,&nbsp;Shuiping Yan","doi":"10.1016/j.greenca.2024.03.001","DOIUrl":"10.1016/j.greenca.2024.03.001","url":null,"abstract":"<div><p>Previously, the once-through CO₂ chemical absorption process by biogas slurry was experimentally verified to offer the unique advantages like low energy consumption, cost-effectiveness, and feasibility of CO₂ fixation in plants. However, this technology also faces some challenges and limitations, including a low CO₂ absorption rate and performance. To improve the effectiveness and reliability of this innovative carbon capture, utilization, and storage (CCUS) technology, this study proposes a novel method to enhance the CO₂ absorption performance without affecting agricultural applications of CO₂ by mixing biogas slurry with biomass ash as the green CO₂ absorbent. The results indicate that when the solid-liquid mass ratio of biomass ash to biogas slurry is 5:10, the CO₂ loading of the biomass ash and biogas slurry mixture (BA-BS) reaches 936.7 ± 59.1 mmol/kg. Furthermore, the pH of the BA-BS remains stable at 6.9, meeting the rhizosphere pH requirements for plant cultivation. The CO₂ absorption of the BA-BS liquid phase, referred to as improved biogas slurry (IBS), reaches its maximum at 230.4 ± 3.5 mmol/L, which is 126.8% higher than that of the unimproved biogas slurry. The nitrogen content in the BA-BS solid phase, calling improved biomass ash (IBA), also reaches its maximum at 4.24 ± 0.74 mg/g, thereby expanding the agricultural utilization of biomass ash. The most reasonable and effective way of utilizing CO₂-rich mixed biogas slurry and biomass ash involves use IBA as the base fertilizer for tomato cultivation, supplemented later with IBS to promote growth. This optimal application allows for substantial utilization of CO₂, introduced into the tomato cultivation environment by IBA and IBS. The carbon fixation of a single tomato has improved by 108.2%. This study thus provides a feasible solution for high-value negative carbonization of biogas slurry and biomass ash.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 252-261"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000193/pdfft?md5=7ad94850b607dc66f981f87169fcf285&pid=1-s2.0-S2950155524000193-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140281942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Size-dependent activity of Fe-N-doped mesoporous carbon nanoparticles towards oxygen reduction reaction","authors":"Yilun Zhao ,&nbsp;Zhengbin Tian ,&nbsp;Wenquan Wang ,&nbsp;Xiaohui Deng ,&nbsp;Jo-Chi Tseng ,&nbsp;Guanghui Wang","doi":"10.1016/j.greenca.2024.03.002","DOIUrl":"https://doi.org/10.1016/j.greenca.2024.03.002","url":null,"abstract":"<div><p>The rational design of Fe–N–C catalysts that possess easily accessible active sites and favorable mass transfer, which are usually determined by the structure of catalyst supports, is crucial for the oxygen reduction reaction (ORR). In this study, an oleic acid-assisted soft-templating approach is developed to synthesize size-controlled nitrogen-doped carbon nanoparticles (ranging from 130 nm to 60 nm and 35 nm, respectively) that feature spiral mesopores on their surface (SMCs). Next, atomically dispersed Fe–N_<em>x</em> sites are fabricated on the size-tunable SMCs (Fe₁/SMC-<em>x</em>, where <em>x</em> represents the SMC size) and the size-dependent activity toward ORR is investigated. It is found that the catalytic performance of Fe₁/SMCs is significantly influenced by the size of SMCs, where the Fe₁/SMC-60 catalyst shows the highest ORR activity with a half-wave potential of 0.90 V vs. RHE in KOH electrolyte, indicating that the gas-liquid-solid three-phase interface on the Fe₁/SMC-60 enhances the accessibility of Fe–N_<em>x</em> sites. In addition, when using Fe₁/SMC-60 as the cathode catalyst in aqueous zinc-air batteries (ZABs), it delivers a higher open-circuit voltage (1.514 V), a greater power density (223 mW cm⁻²), and a larger specific capacity/energy than Pt/C-based counterparts. These results further highlight the potential of Fe₁/SMC-60 for practical energy devices associated with ORR and the importance of size-controlled synthesis of SMCs.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 221-230"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000260/pdfft?md5=be4bcf1fa9d6b8855e53bb9b66921ec1&pid=1-s2.0-S2950155524000260-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141606477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancing AI protein structure prediction and design: From amino acid “bones” to new era of all-atom “flesh”","authors":"Senbiao Fang ,&nbsp;Ren Wei ,&nbsp;Yinglu Cui ,&nbsp;Lin Su","doi":"10.1016/j.greenca.2024.05.001","DOIUrl":"10.1016/j.greenca.2024.05.001","url":null,"abstract":"","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 209-210"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S295015552400034X/pdfft?md5=fc13ca54ab6fb1774d22baeb3281d00f&pid=1-s2.0-S295015552400034X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141137416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Palladium-catalyzed oxidative double alkoxycarbonylation of ethylene toward succinic acid derivatives","authors":"Zhi-Peng Bao ,&nbsp;Cunyao Li ,&nbsp;Li Yan ,&nbsp;Yunjie Ding ,&nbsp;Xiao-Feng Wu","doi":"10.1016/j.greenca.2024.02.008","DOIUrl":"10.1016/j.greenca.2024.02.008","url":null,"abstract":"<div><p>Employing biodegradable plastics is one of the choices to solve white pollution issues. Polybutylene succinate (PBS), as a biodegradable plastic with good stability and heat resistance, is produced by polymerization of succinic acid and butylene glycol. However, inadequate supply of the direct upstream material succinic acid restricts the development of this industry. In this work, we provide a carbonylative strategy to construct succinic acid derivatives from carbon monoxide (CO), ethylene and alcohols. The reaction catalyzed by palladium catalyst under oxidative conditions.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 205-208"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000284/pdfft?md5=83ab64be033677810c499d5a18f88956&pid=1-s2.0-S2950155524000284-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140769759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advances in Sn-based oxide catalysts for the electroreduction of CO2 to formate","authors":"Xiaoyue Tu ,&nbsp;Xiangjian Liu ,&nbsp;Yu Zhang ,&nbsp;Jiawei Zhu ,&nbsp;Heqing Jiang","doi":"10.1016/j.greenca.2024.03.006","DOIUrl":"10.1016/j.greenca.2024.03.006","url":null,"abstract":"<div><p>The excessive consumption of fossil fuels increases carbon dioxide (CO₂) emissions, and the consequent greenhouse effect resulting from higher levels of this gas in the atmosphere has a significant impact on the environment and climate. This has necessitated the development of environmentally friendly and efficient methods for CO₂ conversion. The carbon dioxide electroreduction reaction (CO₂RR), which is driven by electricity generated by renewable energy sources (e.g., wind and solar) to convert CO₂ into value-added fuels or chemicals, is regarded as a promising prospective path toward carbon cycling. Among the various products, formate, with its relatively simple preparation process, has broad application prospects, and can be used as fuel, hydrogen storage material, and raw material for downstream chemicals. Sn-based oxide electrocatalysts have the advantages of being inexpensive and nontoxic. In addition, these catalysts offer high product selectivity and are regarded as promising catalysts for the electrochemical reduction of CO₂ to formate. In this review, we first clarify the reaction mechanisms and factors that influence the reduction of CO₂ to formate, and then provide some examples of technologies that could be used to study the evolution of catalysts during the reaction. In particular, we focus on traditional Sn-based oxides (SnO₂) and novel Sn-based perovskite oxides that have been developed for use in the field of CO₂RR in recent years by considering their synthesis, catalytic performance, optimization strategies, and intrinsic principles. Finally, the current challenges and opportunities for Sn-based oxide electrocatalysts are discussed. The perspectives and latest trends presented in this review are expected to inspire researchers to contribute more efforts toward comprehensively optimizing the performance of the CO₂RR to produce formate.</p></div>","PeriodicalId":100595,"journal":{"name":"Green Carbon","volume":"2 2","pages":"Pages 131-148"},"PeriodicalIF":0.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2950155524000314/pdfft?md5=56835786be73c8a5c7a3bbb22bda74af&pid=1-s2.0-S2950155524000314-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140796660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}