Science Bulletin最新文献_第4页

Unraveling the molecular mechanisms behind tight junction belt formation. 揭示紧密连接带形成背后的分子机制

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.scib.2024.11.022

Ziran Qin, Jing Zou, Long Zhang

引用次数: 0

An integrated photocatalytic redox architecture for simultaneous overall conversion of CO₂ and H₂O toward CH₄ and H₂O₂.

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.scib.2024.11.021

Muhammad Salman Nasir, Bowen Sheng, Ying Zhao, Haotian Ye, Jun Song, Jinglin Li, Ping Wang, Tao Wang, Xinqiang Wang, Zhen Huang, Baowen Zhou

{"title":"An integrated photocatalytic redox architecture for simultaneous overall conversion of CO2 and H2O toward CH4 and H2O2.","authors":"Muhammad Salman Nasir, Bowen Sheng, Ying Zhao, Haotian Ye, Jun Song, Jinglin Li, Ping Wang, Tao Wang, Xinqiang Wang, Zhen Huang, Baowen Zhou","doi":"10.1016/j.scib.2024.11.021","DOIUrl":"https://doi.org/10.1016/j.scib.2024.11.021","url":null,"abstract":"Solar-driven overall conversion of CO2 and H2O into fuels and chemicals shows an ultimate strategy for carbon neutrality yet remains a huge challenge. Herein, an integrated photocatalytic redox architecture of Zn NPs/GaN Nanowires (NWs)/Si is explored for light-driven overall conversion of CO2 and H2O into CH4 and H2O2 simultaneously without any external sacrificial agents and additives. The as-designed architecture affords a benchmark CH4 activity of 189 mmol gcat-1 h-1 with a high selectivity of 93.6%, in the synchronized formation of H2O2 at a considerable rate of 25 m g-1 h-1. Moreover, a considerable turnover number of 27,280 mol CH4 per mol Zn was achieved over a long-term operation of 80 h. By operando spectroscopic characterizations, isotope experiments, and density functional theory calculations, it is unraveled that Zn sites are synergetic with GaN to drive CO2-to-CH4 conversion with a lowered energy barrier of 0.27 eV while inhibiting hydrogen evolution reaction with a relatively high energy barrier of 0.93 eV. Notably, owing to the unique surface properties of GaN, water is split into *OH and *H, followed by the formation of H2O2 because of the alleviated adsorption strength of *OH by Zn NPs. Together, the hierarchical architecture enables the achievement of high activity and high selectivity of CH4 from CO2 reduction in distilled water along with the generation of H2O2. This work provides an integrated photocatalytic redox architecture for the synchronized production of CH4 and H2O2 with the only inputs of CO2, distilled water, and light.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142765200","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}

引用次数: 0

mRNA vaccines for gastrointestinal malignancies: cutting-edge advances and future perspectives. 用于胃肠道恶性肿瘤的 mRNA 疫苗：前沿进展与未来展望。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.scib.2024.11.019

Gang Zhang, Xing Huang, Tingbo Liang

引用次数: 0

Integrative proteogenomic and pharmacological landscape of acute myeloid leukaemia.

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.scib.2024.11.020

Hanlin Wang, Jun-Yu Xu, Tao Wang, Gaoya Xu, Guanghao Luo, Mingya Zhang, Gusheng Tang, Chang Wang, Libing Wang, Weijia Fu, Xiong Ni, Linhui Zhai, Ran Xu, Jianan Li, Yunfei Ye, Xiaohui Qiu, Zhiqi Wu, Jing Li, Yubo Zhou, Jianmin Yang, Minjia Tan, Jia Li

引用次数: 0

Engineering the conjugation of donor and acceptor units in covalent organic frameworks for efficient photocatalytic H₂O₂ synthesis.

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-19 DOI: 10.1016/j.scib.2024.11.024

Xu Ding, Tianying Wang, Qianjun Zhi, Tianyu Zheng, Yucheng Jin, Heyuan Liu, Hailong Wang, Dongdong Qi, Pavel A Stuzhin, Jianzhuang Jiang

引用次数: 0

Unlocking the power of tandem repeat variations to fine-tune rice phenotypes.

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-14 DOI: 10.1016/j.scib.2024.11.018

Kang Chong

引用次数: 0

The upper tropospheric-lower stratospheric ozone drives summer precipitation and wildfire changes in West Siberia. 对流层上部-平流层下部臭氧驱动西西伯利亚夏季降水和野火变化。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-13 DOI: 10.1016/j.scib.2024.11.016

Fei Xie, Yan Xia, Wenshou Tian, Martyn P Chipperfield, Wuhu Feng, Ke Gui, Yingli Niu, Na Liu, Yuanyuan Han

{"title":"The upper tropospheric-lower stratospheric ozone drives summer precipitation and wildfire changes in West Siberia.","authors":"Fei Xie, Yan Xia, Wenshou Tian, Martyn P Chipperfield, Wuhu Feng, Ke Gui, Yingli Niu, Na Liu, Yuanyuan Han","doi":"10.1016/j.scib.2024.11.016","DOIUrl":"https://doi.org/10.1016/j.scib.2024.11.016","url":null,"abstract":"Siberian wildfires are pivotal in determining the carbon cycle and climate dynamics, exerting a profound impact on the ecosystems of the entire Arctic region. Over the past few decades, variations in summer precipitation in West Siberia have significantly influenced wildfire activity. This study analyzed precipitation trends in West Siberia from 1982 to 2021 using observations and transient simulations, uncovering a strong correlation between precipitation variability and ozone concentrations in the upper troposphere-lower stratosphere (UTLS). Heightened UTLS ozone levels warm the upper atmosphere over West Siberia during summer. This warming modifies the regional polar jet stream, intensifying its southern branch and weakening the northern one, leading to a southward shift in the jet stream. Consequently, cyclonic circulation anomalies emerge in the upper troposphere, characterized by a barotropic structure with unusual upward movements around 60°N. This upward motion triggers corresponding anomalies in zonal winds in the lower troposphere, fostering a low-pressure system at the surface. This atmospheric shift results in an influx of warm, moist air from the south and cold, dry air from the north into Siberia, enhancing cloud formation and precipitation. Notably, our analysis suggests that the rise in summer precipitation in West Siberia between 1993 and 2010 is linked to increased UTLS ozone concentrations during this period. Conversely, the decline in UTLS ozone since 2010 may increase the risk of wildfires by suppressing precipitation. Our findings underscore the pivotal role of stratospheric chemistry in shaping the regional climate and wildfire behavior.","PeriodicalId":421,"journal":{"name":"Science Bulletin","volume":" ","pages":""},"PeriodicalIF":18.8,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142695047","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}

引用次数: 0

Deep soil carbon pool responses to climate change in the Chinese Loess Plateau. 中国黄土高原深层土壤碳库对气候变化的响应。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-13 DOI: 10.1016/j.scib.2024.11.014

Guangyao Gao, Binbin Li, Karl J Niklas, Yuanyuan Huang, Mingxiang Xu, Guobin Liu, Bojie Fu

引用次数: 0

Rare tumor list provide vast opportunities for novel drug development in China. 罕见肿瘤清单为中国的新药研发提供了巨大机遇。

IF 18.8 1区综合性期刊

Science Bulletin Pub Date : 2024-11-13 DOI: 10.1016/j.scib.2024.11.017

Rongshou Zheng, Shuhang Wang, Guo Zhao, Wenqiang Wei, Ning Li

引用次数: 0

The Tibetan Plateau darkening initiates positive feedback through the Arctic. 青藏高原的变暗通过北极启动了正反馈。