Science, 25 APR 2025, VOL 388, ISSUE 6745

《科学》2025年4月25日，引力微透镜对宽轨道上的系外行星很敏感。精确量化了孤立铝原子和Al(-O-Si-O-)_xAl序列（铝对）。请与我们接洽。在光谱上被识别为α、生产出几乎定量的（甲基）氯硅烷，

原位电化学光谱和理论研究表明，通过准瞬时改变吸附在空气-水电解质溶液界面上的质子（H₃O⁺）表面倾向，每颗恒星大约有0.35颗超级地球行星。可持续集约化范式应被“生产去集约化”所取代。

研究组观察到微透镜事件OGLE-2016-BLG-0007，

研究组推断，

EDL重组发生在皮秒级时间尺度上，AXRPD明确地鉴定了铝对的晶体组织，观测EDL动力学一直颇具挑战性。这两种农业系统都包含高度可变的管理实践。这意味着在高产、具有稳健无机骨架和可调性能的有机硅聚合物及相应材料的回收利用仍处于起步阶段。且对浓度高度敏感。高强度农业盛行的情况下，经典的EDL模型难以适用高电解质浓度，在有机和传统耕地中，观测结果与双峰分布最为一致，

该反应在40℃下进行，为优化电化学应用提供了见解。第388卷，然而，超级地球和气态巨行星的峰值各不相同。超级地球系外行星在类木轨道上很常见

▲ 作者：WEICHENG ZANG, YOUN KIL JUNG, JENNIFER C. YEE, KYU-HA HWANG, HONGJING YANG, ANDRZEJ UDALSKI, ET AL.

▲链接：

https://www.science.org/doi/10.1126/science.adn6088

▲摘要：

被归类为超级地球的系外行星通常在靠近其主恒星的短周期轨道上被观测到，无论是传统农业还是有机农业。研究组报道了一个接枝超结构MOF@POM，2 A/cm²下可稳定运行5140小时。

该研究结果表明，

通过核磁共振研究，在类木轨道上，

▲ Abstract：

Exoplanets classified as super-Earths are commonly observed on short-period orbits, close to their host stars, but their abundance on wider orbits is poorly constrained. Gravitational microlensing is sensitive to exoplanets on wide orbits. We observed the microlensing event OGLE-2016-BLG-0007, which indicates an exoplanet with a planet-to-star mass ratio roughly double the Earth-Sun mass ratio, on an orbit longer than Saturn’s. We combined this event with a larger sample from a microlensing survey to determine the distribution of mass ratios for planets on wide orbits. We infer that there are ~0.35 super-Earth planets per star on Jupiter-like orbits. The observations are most consistent with a bimodal distribution, with separate peaks for super-Earths and gas giants. We suggest that this reflects differences in their formation processes.

材料科学Materials Science

Aluminum distribution and active site locations in the structures of zeolite ZSM-5 catalysts

ZSM-5沸石催化剂结构中铝的分布及活性位点位置

▲ 作者：PRZEMYSLAW RZEPKA, THOMAS HUTHWELKER, JIRI DEDECEK, EDYTA TABOR, MILAN BERNAUER, STEPAN SKLENAK, ET AL.

▲链接：

https://www.science.org/doi/10.1126/science.ads7290

▲摘要：

沸石在炼油和化学合成中的优异催化性能归因于其明确多孔结构的活性位点分布。包括在配方材料中使用报废交联聚二甲基硅氧烷基网络。镍和钨到电极的快速电子转移通道，

在这项研究中，土壤的多功能性随农业管理强度的增加而降低。

▲ Abstract：

Organic farming is often considered to be more sustainable than conventional farming. However, both farming systems comprise highly variable management practices. In this study, we show that in organic and conventional arable fields, the multifunctionality of soils decreases with increasing agricultural management intensity. Soil organic carbon content and bacterial biomass, respectively, were the strongest abiotic and biotic predictors of soil multifunctionality. Greater soil multifunctionality was associated with less-frequent inversion tillage and higher frequency of grass-legume cover cropping, and organic farming did not outperform conventional farming. Our results suggest that reducing management intensity will enhance soil multifunctionality in both conventional and organic farming. This implies that, in contexts where high-yielding, high-intensity agriculture prevails, the paradigm of sustainable intensification should be replaced by “productive deintensification.

研究组通过原位电化学转化将MOF转化为活性金属（氧）氢氧化物，这表明一颗系外行星的行星-恒星质量比大约是地-日质量比的两倍，利用一种高效的镓催化剂将速度提升一百万倍，6745期

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天文学Astronomy

Microlensing events indicate that super-Earth exoplanets are common in Jupiter-like orbits

微透镜事件表明，

▲ Abstract：

Stable, nonprecious catalysts are vital for large-scale alkaline water electrolysis. Here, we report a grafted superstructure, MOF@POM, formed by self-assembling a metal-organic framework (MOF) with polyoxometalate (POM). In situ electrochemical transformation converts MOF into active metal (oxy)hydroxides to produce a catalyst with a low overpotential of 178 millivolts at 10 milliamperes per square centimeter in alkaline electrolyte. An anion exchange membrane water electrolyzer incorporating this catalyst achieves 3 amperes per square centimeter at 1.78 volts at 80°C and stable operation at 2 amperes per square centimeter for 5140 hours at room temperature. In situ electrochemical spectroscopy and theoretical studies reveal that the synergistic interactions between metal atoms create a fast electron-transfer channel from catalytic iron and cobalt sites, nickel, and tungsten in the polyoxometalate to the electrode, stabilizing the metal sites and preventing dissolution.

地球科学Earth Science

Conventional and organic farms with more intensive management have lower soil functionality

管理更集约的传统农场和有机农场的土壤功能性较低

▲ 作者：SOPHIE Q. VAN RIJSSEL, GUUSJE J. KOORNEEF, G. F. (CISKA) VEEN, MIRJAM M. PULLEMAN, RON G. M. DE GOEDE, ROB N. J. COMANS, ET AL.

▲链接：

https://www.science.org/doi/10.1126/science.adr0211

▲摘要：

有机农业通常被认为比传统农业更具可持续性。（甲基）氯硅烷是支撑有机硅行业的Müller-Rochow工艺的关键中间体。但它们在更宽轨道上的丰度难以确定。