Dalton Transactions

doi: 10.1039/d4dt90116apmid: N/A

doi: 10.1039/d4dt90117gpmid: N/A

doi: 10.1039/d4dt90118epmid: N/A

Feng, Zhi-Yuan; Jiang, Jin-Chi; Meng, Long-Yue

doi: 10.1039/d4dt00534apmid: 38864748

Owing to the considerable potential of photoelectrochemical (PEC) sensors, they have gained significant attention in the analysis of biological, environmental, and food markers. However, the limited charge mass transfer efficiency and rapid recombination of electron hole pairs have become obstacles in the development of PEC sensors. In this case, considering the unique advantages of carbon-based materials, they can be used as photosensitizers, supporting materials and conductive substrates and coupled with semiconductors to prepare composite materials, solving the above problems. In addition, there are many types of carbon materials, which can have semiconductor properties and form heterojunctions after coupling with semiconductors, effectively promoting the separation of electron hole pairs. Herein, we aimed to provide a comprehensive analysis of reports on carbon-based PEC sensors by introducing their research and application status and discussing future development trends in this field. In particular, the types and performance improvement strategies of carbon-based electrodes and the working principles of carbon-based PEC sensors are explained. Furthermore, the applications of carbon-based photoelectric sensors in environmental monitoring, biomedicine, and food detection are highlighted. Finally, the current limitations in the research on carbon-based PEC sensors are emphasized and the need to enhance the sensitivity and selectivity through material modification, structural design, improved device performance, and other strategies are emphasized.

Centeno-Vega, Ignacio; Megías-Sayago, Cristina; Ivanova, Svetlana

doi: 10.1039/d4dt00847bpmid: 38887859

This scientific review delves into the innovative realm of polyolefins/light alkanes valorization through their catalytic dehydrogenation employing pincer-ligated iridium organometallic complexes. These widely studied catalysts exhibit outstanding properties, although the intrinsic characteristics of homogeneous catalysis (such as challenging product–catalyst separation, poor applicability to continuous-flow processes and low recyclability) limit their activity and industrial application, as well as their thermal stability. Through the immobilization of complexes on inorganic supports, these downsides have been bypassed, harnessing the true potential of these catalysts, affording more selective and stable catalysts in addition to facilitating their implementation in industrial processes. The findings described herein contribute to the advancement in the understanding of catalytic processes in hydrocarbon transformations, offering promising avenues for sustainable and selective production of valuable chemical intermediates from readily available feedstocks.

Ogungbade, Taofeek; Uland, Charles; Li, Longji; Wang, Luhan; Pansuria, Kareena; Relva, Carolina; Barn, Gregory; Kaur, Simrat Jeet; Norris, Paulin; Yan, Bangbo

doi: 10.1039/d4dt01456apmid: 38900574

Xiong, Jianbo; Li, Qing; Tan, Xiaojuan; Guo, Xue; Li, Kaihui; Luo, Qiaolin; Chen, Yao; Tong, Xiaolan; Na, Bing; Zhong, Ming

doi: 10.1039/d4dt01314jpmid: 38915258

A heterostructure composed of ZIF-67-derived nitrogen and cobalt-doped carbon enfolded silicon (C@Si) nanoparticles anchored on 2D MXene layers was constructed for boosting the performance of lithium-ion batteries (LIBs). The heterostructure anode demonstrated a high initial discharge capacity of 3021 mA h g−1 at 0.2 A g−1, retaining outstanding cycling stability with a reversible capacity of 520 mA h g−1 at 2000 mA g−1, and the coulombic efficiency remained above 97% after 500 cycles. The introduced Ti3C2 nanosheets and the cobalt-doped carbon can not only contribute to the interfacial transfer of Li+ and electrons but also buffer the volume expansion of Si.

Siddique, Rashid G.; McMurtrie, John C.; Clegg, Jack K.

doi: 10.1039/d4dt01565gpmid: 38916120

In order to bind guest molecules with exquisite selectivity, biological host molecules often employ low symmetry binding pockets. The majority of metallosupramolecular assemblies, however, rely on symmetrical ligands to form high-symmetry assemblies that enclosing similarly symmetrical cavities. Here we employ an unsymmetrical quaterpyridine ligand in combination with cobalt(ii) to form a mixture of low-symmetry [M2L3] helicates and [M4L6] tetrahedra and their subsequent oxidation to Co(iii)-containing assemblies.

Zhang, Kai-Xuan; Wang, Bo; Li, Wen-Yan; Song, Yang; Song, Tian; Li, Yan-An; Dong, Yu-Bin

doi: 10.1039/d4dt00999apmid: 38919991

Herein, we report a composite COF material loaded with a Pt nanoenzyme and an organic photosensitizer BODIPY, synthesized via a stepwise post-synthetic modification. The obtained Pt@COF-BDP nanoparticles can efficiently and continuously convert H2O2 to O2, thereby increasing the efficiency of single-linear oxygen production and achieving efficient tumor inhibition.

Ruan, Zikang; Jiang, Tingting; Meng, Xianhe; Hu, Xiaoyu; Kang, Qiaoling; Yan, Lijing; Yu, Nengjun; Liu, Bingyu; Fan, Meiqiang; Ma, Tingli

doi: 10.1039/d4dt01350fpmid: 38938107

A novel sheet-like tin-based metal–organic framework exhibited a specific capacity for lithium storage as high as 1033.3 mAh g−1 at 200 mA g−1 with excellent cycling stability. This framework, due to its unique porous structure and multiple lithium storage sites, could better cope with challenges occurring during lithium insertion/extraction than could traditional tin materials.