Pub Date : 2025-01-31DOI: 10.1016/j.scib.2025.01.058
Pengcheng Zhou, Fan Mo, Zichong Ji, Jiawei Yang, Hongzhong Du, Zonglei Wang, Hossam Haick, Yan Wang
{"title":"Highly tough and responsible ionic liquid/polyvinyl alcohol-based hydrogels for stretchable electronics.","authors":"Pengcheng Zhou, Fan Mo, Zichong Ji, Jiawei Yang, Hongzhong Du, Zonglei Wang, Hossam Haick, Yan Wang","doi":"10.1016/j.scib.2025.01.058","DOIUrl":"https://doi.org/10.1016/j.scib.2025.01.058","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143373675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Photocatalytic urea production from nitrogen (N2) and carbon dioxide (CO2) is a sustainable and eco-friendly alternative to the Bosch-Meiser route. However, it remains a significant challenge in developing highly efficient photocatalysts for enhancing C-N coupling to high-yield urea synthesis. Herein, we propose a multi-site photocatalyst concept to address the concern of low yield by simultaneously improving photogenerated carrier separation and reactant activation. As a proof of concept, a well-defined multi-site photocatalyst, Ru nanoparticles and Cu single atoms decorated CeO2 nanorods (Ru-Cu/CeO2), is developed for efficient urea production. The incorporation of Ru and Cu sites is crucial not only to generate high-density photogenerated electrons, but also to facilitate N2 and CO2 adsorption and conversion. The in situ formed local nitrogen-rich area at Ru sites increases the encounter possibility with the carbon-containing species generated from Cu sites, substantially promoting C-N coupling. The Ru-Cu/CeO2 photocatalyst exhibits an impressive urea yield rate of 16.7 μmol g-1 h-1, which ranks among the best performance reported to date. This work emphasizes the importance of multi-site catalyst design concept in guaranteeing rapid C-N coupling in photocatalytic urea synthesis and beyond.
{"title":"A multi-site Ru-Cu/CeO<sub>2</sub> photocatalyst for boosting C-N coupling toward urea synthesis.","authors":"Qingyu Wang, Yangyang Wan, Qichen Liu, Yida Zhang, Zhentao Ma, Zirui Xu, Pengting Sun, Gongming Wang, Hai-Long Jiang, Wenping Sun, Xusheng Zheng","doi":"10.1016/j.scib.2025.01.059","DOIUrl":"https://doi.org/10.1016/j.scib.2025.01.059","url":null,"abstract":"<p><p>Photocatalytic urea production from nitrogen (N<sub>2</sub>) and carbon dioxide (CO<sub>2</sub>) is a sustainable and eco-friendly alternative to the Bosch-Meiser route. However, it remains a significant challenge in developing highly efficient photocatalysts for enhancing C-N coupling to high-yield urea synthesis. Herein, we propose a multi-site photocatalyst concept to address the concern of low yield by simultaneously improving photogenerated carrier separation and reactant activation. As a proof of concept, a well-defined multi-site photocatalyst, Ru nanoparticles and Cu single atoms decorated CeO<sub>2</sub> nanorods (Ru-Cu/CeO<sub>2</sub>), is developed for efficient urea production. The incorporation of Ru and Cu sites is crucial not only to generate high-density photogenerated electrons, but also to facilitate N<sub>2</sub> and CO<sub>2</sub> adsorption and conversion. The in situ formed local nitrogen-rich area at Ru sites increases the encounter possibility with the carbon-containing species generated from Cu sites, substantially promoting C-N coupling. The Ru-Cu/CeO<sub>2</sub> photocatalyst exhibits an impressive urea yield rate of 16.7 μmol g<sup>-1</sup> h<sup>-1</sup>, which ranks among the best performance reported to date. This work emphasizes the importance of multi-site catalyst design concept in guaranteeing rapid C-N coupling in photocatalytic urea synthesis and beyond.</p>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143412741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-30DOI: 10.1016/j.scib.2024.09.013
Yuanqing He , Chongyang Ma , Shiheng Mo , Chung-Li Dong , Wei Chen , Shuo Chen , Huan Pang , Renzhi Ma , Shuangyin Wang , Yuqin Zou
The electrochemical oxidation of 5-hydroxymethylfurfural (HMFOR) in alkaline electrolyte is a promising strategy for producing high-value chemicals from biomass derivatives. However, the disproportionation of aldehyde groups under strong alkaline conditions and the polymerization of HMF to form humic substances can impact the purity of 2,5-furandicarboxylic acid (FDCA) products. The use of neutral electrolytes offers an alternative environment for electrolysis, but the lack of OH− ions in the electrolyte often leads to low current density and low yields of FDCA. In this study, a sandwich-structured catalyst, consisting of Ru clusters confined between unilamellar MnO2 nanosheets (S-Ru/MnO2), was used in conjunction with an electrochemical pulse method to realize the electrochemical conversion of 5-hydroxymethylfurfural into FDCA in neutral electrolytes. Pulse electrolysis and the strong electron transfer between Ru clusters and MnO2 nanosheets help maintain Ru in a low oxidation state, ensuring high activity. The increased *OH generation led to a groundbreaking current density of 47 mA/cm2 at 1.55 V vs. reversible hydrogen electrode (RHE) and an outstanding yield rate of 98.7% for FDCA in a neutral electrolyte. This work provides a strategy that combines electrocatalyst design with an electrolysis technique to achieve remarkable performance in neutral HMFOR.
{"title":"Unilamellar MnO2 nanosheets confined Ru-clusters combined with pulse electrocatalysis for biomass electrooxidation in neutral electrolytes","authors":"Yuanqing He , Chongyang Ma , Shiheng Mo , Chung-Li Dong , Wei Chen , Shuo Chen , Huan Pang , Renzhi Ma , Shuangyin Wang , Yuqin Zou","doi":"10.1016/j.scib.2024.09.013","DOIUrl":"10.1016/j.scib.2024.09.013","url":null,"abstract":"<div><div>The electrochemical oxidation of 5-hydroxymethylfurfural (HMFOR) in alkaline electrolyte is a promising strategy for producing high-value chemicals from biomass derivatives. However, the disproportionation of aldehyde groups under strong alkaline conditions and the polymerization of HMF to form humic substances can impact the purity of 2,5-furandicarboxylic acid (FDCA) products. The use of neutral electrolytes offers an alternative environment for electrolysis, but the lack of OH<sup>−</sup> ions in the electrolyte often leads to low current density and low yields of FDCA. In this study, a sandwich-structured catalyst, consisting of Ru clusters confined between unilamellar MnO<sub>2</sub> nanosheets (S-Ru/MnO<sub>2</sub>), was used in conjunction with an electrochemical pulse method to realize the electrochemical conversion of 5-hydroxymethylfurfural into FDCA in neutral electrolytes. Pulse electrolysis and the strong electron transfer between Ru clusters and MnO<sub>2</sub> nanosheets help maintain Ru in a low oxidation state, ensuring high activity. The increased *OH generation led to a groundbreaking current density of 47 mA/cm<sup>2</sup> at 1.55 V vs. reversible hydrogen electrode (RHE) and an outstanding yield rate of 98.7% for FDCA in a neutral electrolyte. This work provides a strategy that combines electrocatalyst design with an electrolysis technique to achieve remarkable performance in neutral HMFOR.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 2","pages":"Pages 193-202"},"PeriodicalIF":18.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142278250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-30DOI: 10.1016/j.scib.2024.10.014
Maoyi Zhang , Chaosheng Hu , Tongtong Zhang , Chris R. Bowen , Rui Li , YongAn Huang , Yewang Su , Zhong Lin Wang , Ya Yang
{"title":"Over 200 times current enhancement via buckling triboelectric nanogenerator at ultra-low speed for monitoring the swelling of lithium ion batteries","authors":"Maoyi Zhang , Chaosheng Hu , Tongtong Zhang , Chris R. Bowen , Rui Li , YongAn Huang , Yewang Su , Zhong Lin Wang , Ya Yang","doi":"10.1016/j.scib.2024.10.014","DOIUrl":"10.1016/j.scib.2024.10.014","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 2","pages":"Pages 148-152"},"PeriodicalIF":18.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142566788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-30DOI: 10.1016/j.scib.2025.01.052
Kehui Xu, Yuxuan Ma, Tao Ye, Yuzhu Wang, Yannan Xie, Chaohui Li, Franklin R Tay, Lina Niu, Zhou Li, Kai Jiao
{"title":"The dual role of electrical stimulation in pain: from management to reconstruction.","authors":"Kehui Xu, Yuxuan Ma, Tao Ye, Yuzhu Wang, Yannan Xie, Chaohui Li, Franklin R Tay, Lina Niu, Zhou Li, Kai Jiao","doi":"10.1016/j.scib.2025.01.052","DOIUrl":"https://doi.org/10.1016/j.scib.2025.01.052","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143432123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-30DOI: 10.1016/j.scib.2024.10.011
Yidian Li , Yantao Cao , Liangyang Liu , Pai Peng , Hao Lin , Cuiying Pei , Mingxin Zhang , Heng Wu , Xian Du , Wenxuan Zhao , Kaiyi Zhai , Xuefeng Zhang , Jinkui Zhao , Miaoling Lin , Pingheng Tan , Yanpeng Qi , Gang Li , Hanjie Guo , Luyi Yang , Lexian Yang
In addition to the pressurized high-temperature superconductivity, bilayer and trilayer nickelate superconductors Lan+1NinO3n+1 (n = 2 and 3) exhibit many intriguing properties at ambient pressure, such as orbital-dependent electronic correlation, non-Fermi liquid behavior, and density-wave transitions. Here, using ultrafast reflectivity measurement, we observe a drastic difference between the ultrafast dynamics of the bilayer and trilayer nickelates at ambient pressure. We observe a coherent phonon mode in La4Ni3O10 involving the collective vibration of La, Ni, and O atoms, which is absent in La3Ni2O7. Temperature-dependent relaxation time diverges near the density-wave transition temperature of La4Ni3O10, while it is inversely proportional to the temperature in La3Ni2O7 above ∼150 K, suggesting a non-Fermi liquid behavior of La3Ni2O7. Moreover, we estimate the electron–phonon coupling constants to be 0.05–0.07 and 0.12–0.16 for La3Ni2O7 and La4Ni3O10, respectively, suggesting a relatively minor role of electron–phonon coupling in the electronic properties of Lan+1NinO3n+1 at ambient pressure. The relevant microscopic interaction and dynamic information are essential for further studying the interplay between superconductivity and density-wave transitions in nickelate superconductors.
{"title":"Distinct ultrafast dynamics of bilayer and trilayer nickelate superconductors regarding the density-wave-like transitions","authors":"Yidian Li , Yantao Cao , Liangyang Liu , Pai Peng , Hao Lin , Cuiying Pei , Mingxin Zhang , Heng Wu , Xian Du , Wenxuan Zhao , Kaiyi Zhai , Xuefeng Zhang , Jinkui Zhao , Miaoling Lin , Pingheng Tan , Yanpeng Qi , Gang Li , Hanjie Guo , Luyi Yang , Lexian Yang","doi":"10.1016/j.scib.2024.10.011","DOIUrl":"10.1016/j.scib.2024.10.011","url":null,"abstract":"<div><div>In addition to the pressurized high-temperature superconductivity, bilayer and trilayer nickelate superconductors La<em><sub>n</sub></em><sub>+1</sub>Ni<em><sub>n</sub></em>O<sub>3</sub><em><sub>n</sub></em><sub>+1</sub> (<em>n</em> = 2 and 3) exhibit many intriguing properties at ambient pressure, such as orbital-dependent electronic correlation, non-Fermi liquid behavior, and density-wave transitions. Here, using ultrafast reflectivity measurement, we observe a drastic difference between the ultrafast dynamics of the bilayer and trilayer nickelates at ambient pressure. We observe a coherent phonon mode in La<sub>4</sub>Ni<sub>3</sub>O<sub>10</sub> involving the collective vibration of La, Ni, and O atoms, which is absent in La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub>. Temperature-dependent relaxation time diverges near the density-wave transition temperature of La<sub>4</sub>Ni<sub>3</sub>O<sub>10</sub>, while it is inversely proportional to the temperature in La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub> above ∼150 K, suggesting a non-Fermi liquid behavior of La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub>. Moreover, we estimate the electron–phonon coupling constants to be 0.05–0.07 and 0.12–0.16 for La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub> and La<sub>4</sub>Ni<sub>3</sub>O<sub>10</sub>, respectively, suggesting a relatively minor role of electron–phonon coupling in the electronic properties of La<em><sub>n</sub></em><sub>+1</sub>Ni<em><sub>n</sub></em>O<sub>3</sub><em><sub>n</sub></em><sub>+1</sub> at ambient pressure. The relevant microscopic interaction and dynamic information are essential for further studying the interplay between superconductivity and density-wave transitions in nickelate superconductors.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 2","pages":"Pages 180-186"},"PeriodicalIF":18.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142566780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-30DOI: 10.1016/j.scib.2024.10.028
Yongyan Hu , Yifan Lei , Xiuliang Liu , Ronggui Yang
Managing high-flux waste heat with controllable device working temperature is becoming challenging and critical for the artificial intelligence, communications, electric vehicles, defense and aerospace sectors. Spray cooling, which combines forced convection with phase-change latent heat of working fluids, is promising for high flux heat dissipation. Most of the previous studies on spray cooling enhancement adopted high spray flow rates to strengthen forced convection for high critical heat flux (CHF), leading to a low heat transfer coefficient (HTC). Micro/nanostructured surfaces can enhance boiling, but bubbles inside the structures tend to form a vapor blanket, which can deteriorate heat transfer. This work demonstrates simultaneous enhancement of CHF and HTC in spray cooling by improving both evaporation and liquid film boiling on three-dimensional (3D) ordered hierarchical micro/nano-structured surface. The hierarchical micro/nano-structured surface is designed to coordinate the transport of spray droplets, capillary liquid films, and boiling bubbles to enhance spray cooling performance. Boiling inversion where superheat decreases with increasing heat flux is observed, leading to an ultra-high HTC due to the simultaneous promotion of bubble nucleation and evaporation. Unprecedented CHF is obtained by overcoming the liquid–vapor counterflow, i.e., synergistically facilitating bubble escape and liquid permeation. A record-breaking heat transfer performance of spray cooling is achieved with a maximum heat flux of 1273 W/cm2 and an HTC of 443.7 kW/(m2 K) over a 1 cm2 heating area.
{"title":"Record-high heat transfer performance of spray cooling on 3D-printed hierarchical micro/nano-structured surface","authors":"Yongyan Hu , Yifan Lei , Xiuliang Liu , Ronggui Yang","doi":"10.1016/j.scib.2024.10.028","DOIUrl":"10.1016/j.scib.2024.10.028","url":null,"abstract":"<div><div>Managing high-flux waste heat with controllable device working temperature is becoming challenging and critical for the artificial intelligence, communications, electric vehicles, defense and aerospace sectors. Spray cooling, which combines forced convection with phase-change latent heat of working fluids, is promising for high flux heat dissipation. Most of the previous studies on spray cooling enhancement adopted high spray flow rates to strengthen forced convection for high critical heat flux (CHF), leading to a low heat transfer coefficient (HTC). Micro/nanostructured surfaces can enhance boiling, but bubbles inside the structures tend to form a vapor blanket, which can deteriorate heat transfer. This work demonstrates simultaneous enhancement of CHF and HTC in spray cooling by improving both evaporation and liquid film boiling on three-dimensional (3D) ordered hierarchical micro/nano-structured surface. The hierarchical micro/nano-structured surface is designed to coordinate the transport of spray droplets, capillary liquid films, and boiling bubbles to enhance spray cooling performance. Boiling inversion where superheat decreases with increasing heat flux is observed, leading to an ultra-high HTC due to the simultaneous promotion of bubble nucleation and evaporation. Unprecedented CHF is obtained by overcoming the liquid–vapor counterflow, i.e., synergistically facilitating bubble escape and liquid permeation. A record-breaking heat transfer performance of spray cooling is achieved with a maximum heat flux of 1273 W/cm<sup>2</sup> and an HTC of 443.7 kW/(m<sup>2</sup> K) over a 1 cm<sup>2</sup> heating area.</div></div>","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 2","pages":"Pages 223-231"},"PeriodicalIF":18.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142589695","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-01-30DOI: 10.1016/j.scib.2024.10.033
Xingliang Li , Sanlong Wang , Xiangqing Zhou , Yucheng Li , Hui Liu , Biao Shi , Qiang Sun , Ying Zhao , Xiaodan Zhang
{"title":"Tunable refractive index transparent conductive adhesives for efficient monolithic tandem solar cells","authors":"Xingliang Li , Sanlong Wang , Xiangqing Zhou , Yucheng Li , Hui Liu , Biao Shi , Qiang Sun , Ying Zhao , Xiaodan Zhang","doi":"10.1016/j.scib.2024.10.033","DOIUrl":"10.1016/j.scib.2024.10.033","url":null,"abstract":"","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":"70 2","pages":"Pages 144-147"},"PeriodicalIF":18.8,"publicationDate":"2025-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号