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Carbon Dioxide Reduction
In article number 2304808, Shijie Yuan, Xiaohu Dai, and co‐workers present a one‐step in situ synthesis of metal–organic framework (MOF)‐on‐MOF catalyst to bring HCO3‐ into the CO2RR reaction using structural reorganization. The authors investigate the reaction mechanism and catalytic response of the MOF‐on‐MOF structure, and propose a CO2RR dual‐channel hypothesis.
The synthesis of efficient and highly selective catalysts and rational reactor design play decisive roles in the industrial application of the electrocatalytic carbon dioxide reduction reaction (CO2RR). In this study, a dual‐metal–organic framework (MOF) copper‐based catalytic electrode is designed and prepared in one step by in situ synthesis on a foamed copper substrate. The MOF‐on‐MOF structure...
Space charge transfer of heterostructures driven by the work‐function‐induced built‐in field can regulate the electronic structure of catalysts and boost the catalytic activity. Herein, an epitaxial heterojunction catalyst of CoO/Mo2C with interfacial electron redistribution induced by work functions (WFs) is constructed for overall water splitting via a novel top‐down strategy. Theoretical simulations...
Polyethylene oxide (PEO) based polymer electrolytes show promise in expanding the practical applications of lithium (Li) batteries. However, their applications in Li batteries are usually restricted owing to the lack of mechanical strength, poor oxidative stability, and relatively large thickness. Herein, a nanofibrous polyimide (PI) framework enhanced plasticized‐PEO solid electrolyte is prepared...
Water contamination resulting from heavy metal ions (HMIs) poses a severe threat to public health and the ecosystem. Attempts are tending to develop functional materials to realize efficient and intelligent adsorption of HMIs. Herein, self‐propelled structural color cylindrical micromotors (SCCMs) with reversible HMIs adsorption capacity and self‐reporting property are presented. The SCCMs are fabricated...
High‐Resolution Sensing
In article number 2104706, Jingbin Zeng, Zifeng Yan, Yadong Yin, and co‐workers fabricate a hybrid pressure aerogel/hydrogel sensor by integrating a polypyrrole nanotube‐structured aerogel into a polyacrylamide hydrogel. With high stretchability and self‐healing property, the hybrid polymer sensor exhibits stable performance in high‐resolution sensing of a wide range of pressure...
Achieving high sensitivity over a broad pressure range remains a great challenge in designing piezoresistive pressure sensors due to the irreconcilable requirements in structural deformability against extremely high pressures and piezoresistive sensitivity to very low pressures. This work proposes a hybrid aerogel/hydrogel sensor by integrating a nanotube structured polypyrrole aerogel with a polyacrylamide...
Rational design and preparation of efficient and durable bifunctional electrocatalyst is an eternal yet challenging goal for sustainable energy conversion processes, such as water splitting. Herein, 3D NiFe layered double hydroxide‐polyoxometalate (LDH‐POM; polyoxometalate, i.e., K8[SiW11O39]·13H2O) with micro‐flower morphology is in situ grown on Ni foam via a facile one‐step hydrothermal method,...
Nearly inexhaustible sodium sources on earth make sodium ion batteries (SIBs) the best candidate for large‐scale energy storage. However, the main obstacles faced by SIBs are the low rate performance and poor cycle stability caused by the large size of Na+ ions. Herein, a universal strategy for synthesizing amorphous metals encapsulated into amorphous B, N co‐doped carbon (a‐M@a‐BCN; M = Co, Ni, Mn)...
Plasmonic catalysis is an emerging process that utilizes surface plasmon resonance (SPR) process to harnesses solar energy for the promotion of catalyzed reactions. In most cases, SPR generated hot electrons (HEs) play an indispensable role in this solar‐chemical energy shift process. Therefore, understanding the effectiveness of the HEs in promoting chemical reactions, and identifying the key factors...
Piezoelectric fiber‐based generators are prepared by combining two distinctive materials — poly(vinlyidene fluoride) fibers and monolayer/bilayer graphene. Novelty lies in the replacement of opaque metal electrodes with transparent graphene electrodes which enable the graphene‐piezoelectric fiber generator to exhibit high flexibility and transparency as well as a great performance with an achievable...
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