Nature Energy最新文献_第10页

Easing liquidity constraints might be insufficient for exclusive clean cooking fuel use 缓解流动性限制可能不足以完全使用清洁烹饪燃料

IF 60.1 1区材料科学

Nature Energy Pub Date : 2025-06-03 DOI: 10.1038/s41560-025-01784-y

引用次数: 0

Deconstructing the (un)affordability of clean cooking fuels through a randomized trial in rural Tanzania 通过在坦桑尼亚农村进行的一项随机试验，解构清洁烹饪燃料的（un）可负担性

IF 60.1 1区材料科学

Nature Energy Pub Date : 2025-06-03 DOI: 10.1038/s41560-025-01778-w

Annelise Gill-Wiehl, Isha Ray, Robert Katikiro, Daniel M. Kammen, Alan Hubbard

{"title":"Deconstructing the (un)affordability of clean cooking fuels through a randomized trial in rural Tanzania","authors":"Annelise Gill-Wiehl, Isha Ray, Robert Katikiro, Daniel M. Kammen, Alan Hubbard","doi":"10.1038/s41560-025-01778-w","DOIUrl":"10.1038/s41560-025-01778-w","url":null,"abstract":"Low-income users struggle to save for clean cooking fuel costs. We test whether a lockbox intervention paired with micro-saving nudges could alleviate the unaffordability of clean fuels. In a year-long stepped-wedge randomized control trial in Tanzania (n = 511), we find that compared to savings nudges only, a lockbox and savings nudges increased annual refills of liquefied petroleum gas (LPG) by 1.4 (0.054 per 2 weeks ([95% confidence interval: 0.043, 0.066], P < 0.0001)) and minimally decreased firewood use but had no effect on lags between LPG refills or the frequency of LPG and charcoal use. We find that easing liquidity constraints is insufficient for exclusive LPG use when LPG is the financial responsibility of only women, who ration LPG purchases to meet other household needs and social expectations. The financial and gendered realities of low-income consumers demand clean energy policies beyond easing liquidity constraints or targeted subsidies. Clean cooking fuels can be unaffordable. A year-long randomized control trial in Tanzania finds that a lockbox intervention along with behavioural nudging to encourage savings modestly increased liquefied petroleum gas use but did not lead to exclusive adoption, and that gendered financial constraints explain these results.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"10 7","pages":"836-846"},"PeriodicalIF":60.1,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144201750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mapping the cost competitiveness of African green hydrogen imports to Europe 绘制非洲进口到欧洲的绿色氢的成本竞争力

IF 60.1 1区材料科学

Nature Energy Pub Date : 2025-06-02 DOI: 10.1038/s41560-025-01768-y

Florian Egli, Flurina Schneider, Alycia Leonard, Claire Halloran, Nicolas Salmon, Tobias Schmidt, Stephanie Hirmer

{"title":"Mapping the cost competitiveness of African green hydrogen imports to Europe","authors":"Florian Egli, Flurina Schneider, Alycia Leonard, Claire Halloran, Nicolas Salmon, Tobias Schmidt, Stephanie Hirmer","doi":"10.1038/s41560-025-01768-y","DOIUrl":"10.1038/s41560-025-01768-y","url":null,"abstract":"Governments in many European countries have high hopes for cheap green hydrogen (H2) from Africa to decarbonize hard-to-abate sectors. Using geospatial levelized cost models, this study evaluates the economic feasibility of exporting green H2 in the form of ammonia from Africa to Europe under four realistic financing scenarios by 2030. Our findings suggest that without European policy interventions, green H2 from Africa remains prohibitively expensive with least costs from €4.2 kgH2−1 to €4.9 kgH2−1 depending on the interest rate environment. Using de-risking policy, we identify 214 locations in six African countries that may be competitive in the current interest rate environment, yet many of these face a challenging security situation casting doubt on long-term investments. Under optimal policy and interest rate scenarios, we find a least cost of €3.2 kgH2−1 in Mauritania by 2030. Overall, de-risking and strategic location selection are key to make African green H2 exports competitive on the global stage. A geospatial levelized cost model shows that green hydrogen imports from Africa to Europe remain uncompetitive without major policy support. De-risking policies and strategic site selection are key, but major risks remain.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"10 6","pages":"750-761"},"PeriodicalIF":60.1,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41560-025-01768-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144193104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Na and Ti share roles Na和Ti共享角色

IF 60.1 1区材料科学

Nature Energy Pub Date : 2025-05-27 DOI: 10.1038/s41560-025-01788-8

James Gallagher

引用次数: 0

Contamination control 污染控制

IF 60.1 1区材料科学

Nature Energy Pub Date : 2025-05-27 DOI: 10.1038/s41560-025-01789-7

Giulia Tregnago

引用次数: 0

Ambient pressure storage of high-density methane in nanoporous carbon coated with graphene 石墨烯包覆纳米孔碳中高密度甲烷的环境压力储存

IF 60.1 1区材料科学

Nature Energy Pub Date : 2025-05-23 DOI: 10.1038/s41560-025-01783-z

Shuwen Wang, Fernando Vallejos-Burgos, Ayumi Furuse, Hayato Otsuka, Miu Nagae, Yuma Kawamata, Tomonori Ohba, Hirofumi Kanoh, Koki Urita, Hiroo Notohara, Isamu Moriguchi, Hideki Tanaka, Juan P. Marco-Lozar, Joaquín Silvestre-Albero, Takuya Hayashi, Katsumi Kaneko

{"title":"Ambient pressure storage of high-density methane in nanoporous carbon coated with graphene","authors":"Shuwen Wang, Fernando Vallejos-Burgos, Ayumi Furuse, Hayato Otsuka, Miu Nagae, Yuma Kawamata, Tomonori Ohba, Hirofumi Kanoh, Koki Urita, Hiroo Notohara, Isamu Moriguchi, Hideki Tanaka, Juan P. Marco-Lozar, Joaquín Silvestre-Albero, Takuya Hayashi, Katsumi Kaneko","doi":"10.1038/s41560-025-01783-z","DOIUrl":"10.1038/s41560-025-01783-z","url":null,"abstract":"Storage and transportation of methane (CH4) remains challenging as it cannot be liquefied at ambient temperature and instead must be stored as compressed gas at high pressures (approximately 25 MPa). Alternatively, it can be stored within nanoporous materials at moderate pressures (for example, 3.5 MPa) but this ‘adsorbed natural gas’ approach can suffer from substantial desorption with only minor temperature increases. Both methods therefore necessitate additional safety measures. Here we report graphene-coated porous carbon materials that can be charged with CH4 at high pressure and retain it at ambient pressure and temperature (below 318 K), thereby enhancing storage safety. Our data suggest that graphene serves as a thermally controllable lock that obstructs or activates pores to trap or release CH4, enabling a pressure-equivalent loading of 19.9 MPa at 298 K, and release upon heating to 473 K. The resulting reversible CH4 volumetric capacity reaches 142 v/v, exceeding that of various adsorbed natural gas materials at 3.5 MPa and 298 K when considering container space utilization. High-density methane storage typically requires high pressures and/or low temperatures, which can pose operational challenges. Here the authors report graphene-coated carbons that, after high-pressure charging, can store methane at high densities even at ambient external pressure.","PeriodicalId":19073,"journal":{"name":"Nature Energy","volume":"10 7","pages":"847-856"},"PeriodicalIF":60.1,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144122764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Author Correction: US industrial policy may reduce electric vehicle battery supply chain vulnerabilities and influence technology choice 作者更正：美国产业政策可能减少电动汽车电池供应链的脆弱性并影响技术选择

IF 60.1 1区材料科学

Nature Energy Pub Date : 2025-05-19 DOI: 10.1038/s41560-025-01799-5

Anthony L. Cheng, Erica R. H. Fuchs, Jeremy J. Michalek

引用次数: 0

Stabilizing lithium-metal electrodes with polymer coatings 聚合物涂层稳定锂金属电极

IF 60.1 1区材料科学

Nature Energy Pub Date : 2025-05-14 DOI: 10.1038/s41560-025-01767-z

Zhuojun Huang, Hao Lyu, Louisa C. Greenburg, Yi Cui, Zhenan Bao

引用次数: 0

Small-battery calorimetry for enhanced safety 小电池量热法，提高安全性