Featured
-
-
Article
| Open AccessRoom temperature CO2 reduction to solid carbon species on liquid metals featuring atomically thin ceria interfaces
While CO2 reduction proves an appealing means to convert greenhouse emissions to high-value products, there are few materials capable of such a conversion. Here, the authors demonstrate a liquid-metal electrocatalyst to convert CO2 directly into solid carbon that can be used as capacitor electrodes.
- Dorna Esrafilzadeh
- , Ali Zavabeti
- & Kourosh Kalantar-Zadeh
-
Article
| Open AccessInherent potential of steelmaking to contribute to decarbonisation targets via industrial carbon capture and storage
Carbon budget is diminishing to comply with the target under 2 °C scenario. Facing the limited capacity to improve energy efficiency, the authors show that steelmaking with inherent decarbonisation process can potentially help achieve 2050 emission reduction targets under 2 °C scenario before 2030.
- Sicong Tian
- , Jianguo Jiang
- & Vasilije Manovic
-
Article
| Open AccessCopper-on-nitride enhances the stable electrosynthesis of multi-carbon products from CO2
While multi-carbon (C2+) products present high-value species attainable from emitted carbon dioxide, it is challenging to prepare stable, C2+ selective catalysts. Here, authors support copper on copper nitride to improve copper’s electrocatalytic stability and selectivity toward C2+ synthesis.
- Zhi-Qin Liang
- , Tao-Tao Zhuang
- & Edward H. Sargent
-
Article
| Open AccessCatalyst-TiO(OH)2 could drastically reduce the energy consumption of CO2 capture
The notoriously slow kinetics in CO2 desorption hinders the development of efficient CO2 capture technologies. Here, the authors discover that nanostructured TiO(OH)2 as a catalyst is capable of dramatically increasing the rates of CO2 desorption from spent monoethanolamine.
- Qinghua Lai
- , Sam Toan
- & Maohong Fan
-
Article
| Open AccessOptimization of the structural characteristics of CaO and its effective stabilization yield high-capacity CO2 sorbents
The economic operation of a carbon dioxide capture technique of calcium looping necessitates highly effective CaO-based CO2 sorbents. Here, the authors report a facile one-pot synthesis approach to yield highly effective, MgO-stabilized, CaO-based CO2 sorbents featuring highly porous multishelled morphologies.
- Muhammad Awais Naeem
- , Andac Armutlulu
- & Christoph R. Müller
-
Article
| Open AccessEstimating geological CO2 storage security to deliver on climate mitigation
Carbon capture and storage can help reduce CO2 emissions but the confidence in geologic CO2 storage security is uncertain. Here the authors present a numerical programme to estimate leakage from wells and find that under appropriate regulation 98% of injected CO2 will be retained over 10,000 years.
- Juan Alcalde
- , Stephanie Flude
- & R. Stuart Haszeldine
-
Article
| Open AccessSingle rhodium atoms anchored in micropores for efficient transformation of methane under mild conditions
Catalytic transformation of CH4 under mild conditions has implications to shale gas utilization. Here, the authors report the transformation of CH4 to acetic acid through coupling of CH4, CO and O2 on single-site Rh1O5 anchored in microporous aluminosilicates in liquid phase.
- Yu Tang
- , Yuting Li
- & Franklin (Feng) Tao
-
Article
| Open AccessUltra-thin enzymatic liquid membrane for CO2 separation and capture
Porous membranes show great promise for CO2 separation and capture, but are currently limited by a trade-off between permeance and selectivity. Here, the authors fabricate a bio-inspired, ultra-thin enzymatic liquid membrane that displays exceptional CO2 permeability and selectivity under ambient conditions.
- Yaqin Fu
- , Ying-Bing Jiang
- & C. Jeffrey Brinker
-
Article
| Open AccessOxidation-stable amine-containing adsorbents for carbon dioxide capture
Amine-containing solids are promising adsorbents for CO2 capture, but their low oxidative stability has hindered their application. Here, Choi and colleagues develop a strategy to poison the metal impurities present in poly(ethyleneimine)/silica adsorbents, significantly improving their stability towards oxidation.
- Kyungmin Min
- , Woosung Choi
- & Minkee Choi
-
Article
| Open AccessA Co3O4-CDots-C3N4 three component electrocatalyst design concept for efficient and tunable CO2 reduction to syngas
Simultaneous electrochemical reduction of CO2 and H+/H2O is an attractive renewable route to produce syngas mixtures. Here, the authors introduce a ternary Co3O4-CDots-C3N4 electrocatalyst that couples hydrogen evolution and CO2 reduction catalysts and achieves cheap, stable and tunable production of syngas.
- Sijie Guo
- , Siqi Zhao
- & Zhenhui Kang
-
Article
| Open AccessDirect catalytic hydrogenation of CO2 to formate over a Schiff-base-mediated gold nanocatalyst
Bicarbonate reduction is a bottleneck step of the CO2 hydrogenation to formic acid in alkaline solution. Here, the authors show a highly active Schiff-base-modified gold nanocatalyst for the efficient reduction of CO2 to formic acid under relatively mild conditions.
- Qinggang Liu
- , Xiaofeng Yang
- & Tao Zhang
-
Article
| Open AccessFlexible interlocked porous frameworks allow quantitative photoisomerization in a crystalline solid
Organizing photochromic molecules into 3D networks is a key strategy to access photoresponsive materials, but framework rigidity typically limits conversion efficiency. Here, the authors exploit a flexible metal-organic framework to achieve quantitative and reversible photoisomerization in a porous crystalline solid.
- Yongtai Zheng
- , Hiroshi Sato
- & Susumu Kitagawa
-
Article
| Open AccessDirectly converting CO2 into a gasoline fuel
Direct hydrogenation of CO2 into liquid fuels can mitigate CO2 emissions and reduce the rapid depletion of fossil fuels. Here, the authors show an iron-based multifunctional catalyst that converts CO2to gasoline with high selectivity due to synergistic cooperation of multiple catalytic active sites.
- Jian Wei
- , Qingjie Ge
- & Jian Sun
-
Article
| Open AccessReversed thermo-switchable molecular sieving membranes composed of two-dimensional metal-organic nanosheets for gas separation
Reducing membrane thickness to nanometre scale should increase the throughput of gas separation sieves. Here, the authors report a sieving membrane composed of two-dimensional metal-organic framework nanosheets, exhibiting both high permeation flux and thermally switchable behaviour.
- Xuerui Wang
- , Chenglong Chi
- & Dan Zhao
-
Article
| Open AccessEpoxide-functionalization of polyethyleneimine for synthesis of stable carbon dioxide adsorbent in temperature swing adsorption
Carbon dioxide capture technologies have been implemented as a strategy to alleviate the environmental costs of CO2 emissions. Here, the authors synthesize a functionalized-polyethyleneimine/silica adsorbent for post-combustion CO2 capture that exhibits a large CO2capacity and long-term stability.
- Woosung Choi
- , Kyungmin Min
- & Minkee Choi