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Glimpses of 60 years of research in materials chemistry

机译:材料化学研究60年的一瞥

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Materials chemistry was in its infancy when I started my independent research efforts in India after returning from the United States in the late 1950s. I have investigated phase transformations of TiO2 and CsCl, and also carried out defect calculations. While working on rare-earth oxides, I made TbO2 and PrO2 by a simple solution route; this is probably an early example of chimie douce (soft chemistry). I started working on transition-metal oxides by building simple instruments, including a thermobalance and furnaces. In 1987, we were able to fully characterize the first liquid N-2 superconductor (YBa2Cu3O7) using a home-built AC susceptometer. Oxides have been of great interest to me because of the variety of phenomena exhibited by them. I have studied various aspects of transition-metal oxides, including metal-insulator transitions, colossal magnetoresistance, and multiferroics. The last two decades have included research on synthesis, characterization, and properties of various nanomaterials, and in particular, two-dimensional nanosheets (graphene and its inorganic analogues). Two-dimensional sheets and other nanomaterials have been covalently crosslinked to derive new materials with novel properties. Work on water splitting and reduction of CO2, besides using aliovalent anion substitution to generate novel inorganics (Zn2NF in place of ZnO), has also been conducted.
机译:1950年代后期从美国归国后,我开始在印度开展独立研究工作时,材料化学才刚刚起步。我研究了TiO2和CsCl的相变,并进行了缺陷计算。在研究稀土氧化物时,我通过简单的溶液路线制备了TbO2和PrO2。这可能是chimeie douce(软化学)的早期示例。我开始通过构建简单的仪器(包括热天平和熔炉)来研究过渡金属氧化物。 1987年,我们使用家用交流电敏感性计来全面表征了第一批液态N-2超导体(YBa2Cu3O7)。氧化物因其表现出的多种现象而引起了我的极大兴趣。我研究了过渡金属氧化物的各个方面,包括金属-绝缘体过渡,巨大磁阻和多铁性。最近的二十年包括各种纳米材料,尤其是二维纳米片(石墨烯及其无机类似物)的合成,表征和性质的研究。二维片材和其他纳米材料已被共价交联,以得到具有新颖性质的新材料。除使用异价阴离子取代生成新型无机物(Zn2NF代替ZnO)外,还进行了水分解和CO2还原的工作。

著录项

  • 来源
    《MRS bulletin》 |2018年第3期|220-226|共7页
  • 作者

    Rao C. N. R.;

  • 作者单位

    Jawaharlal Nehru Ctr Adv Sci Res, Bengaluru, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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